New Holland EC350 Excavator Crawlers Operator's Manual - PDF DOWNLOAD

OPERATOR’S MANUAL Excavator Crawlers EC350 S/N 735001 - 735034

PROPRIETARY NOTICE The contents of this manual are proprietary data of New Holland Construction. Reproduction or use of any part for other than the operation and maintenance of New Holland Construction equipment is permissible only if expressly authorized in writing by New Holland Construction.

Additional copies may be obtained from your New Holland Construction Dealer. Address requests for copies to your Dealer and refer to the publication number appearing on the bottom of the manual cover.

COMPANY POLICY Company policy, which is one of continuous improvement, reserves the right to change prices and to make changes in design and specification at any time without notice and without obligation to modify units previously built.

All data given in this book is subject to production variations. Dimensions and weights are approximate only and the illustrations do not necessarily show machines in standard condition.

For exact information about any particular machine please consult your New Holland Construction Dealer.

PARTS AND ACCESSORIES Genuine parts and accessories have been specifically designed for these machines.

We would like to point out that “non-genuine” parts and accessories have NOT been examined and released by the Company. The installation and or use of such products could have negative effects upon the design characteristics of your machine and thereby affect its safety.

The company is not liable for any damage caused by the use of “non-genuine” parts and accessories.

MODEL CODES The range of machines listed may not be available in all countries or markets therefore, for the latest information consult your local New Holland Construction Dealer.

MODEL

ENGINE TYPE - H.P.

EC350 S/N 735001-735034

©1999 NEW HOLLAND CONSTRUCTION

OWNER ASSISTANCE We at New Holland and your New Holland dealer want you to be completely satisfied with your investment. Normally any problems with your equipment will be handled by your dealer's Service Department. Sometimes, however, misunderstandings can occur. If your problem has not been handled to your satisfaction, we suggest the following.

1. Contact the owner or General Manager of the dealership, explain the problem, and request assistance. When additional assistance is needed, your dealer has direct access to our office.

2. If you cannot obtain satisfaction by doing this, contact the New Holland Construction office and provide them with: - Your name, address, and telephone number - Machine model and serial number - Dealership name and address - Machine purchase date and amount of use - Nature of problem

NEW HOLLAND CONSTRUCTION 245 E North Ave Carol Stream, IL 60188 Ph # (630) 260-4000 When contacting New Holland, be aware that your problem will likely be resolved in the dealership using the dealer's facilities, equipment, and personnel. So it is important that your initial contact be with the dealer.

SPARE PARTS

To maintain operating efficiency, use NEW HOLLAND original spare parts.

When ordering parts, give the following information: -

Machine model Machine and engine serial numbers Part number from the Parts Catalog ©1999 NEW HOLLAND CONSTRUCTION

TO THE OWNER: The warranty coverage that is extended to your machine is explained in the Warranty and Limitation of Liability form. Your dealer will provide you with a copy of the warranty and retain a copy which you have signed. After you read the warranty, ask your dealer to explain any points that you may not understand.

The machine was designed to power and propel itself. It is intended to move material in the normal and customary applications.

Do not modify or alter or permit anyone else to modify or alter this machine or any of its components mechanical function with first consulting an authorized New Holland Construction dealer. If you have any questions regarding machine modifications, contact New Holland Construction, 245 E. North Ave., Carol Stream, IL 60188.

Your safety and the safety of those around you depend upon the care and good judgment you use while operating this equipment. Read the safety precautions carefully.

After you have operated the machine for 50 hours, take your machine and this manual to your selling dealer. He will perform the factory recommended 50-hour service. You will be responsible for the cost of lubricants, fluids, filters and other items replaced as part of normal maintenance. Prior to taking the machine to your selling dealer for service, it is recommended that you contact them to determine any other charges for which you may be responsible.

All data given in this book is subject to product variations. Dimensions and weights are approximate only and the illustrations do not necessarily show machines in standard condition.

For exact information about any particular machine, please consult your New Holland Construction dealer.

CAUTION: THIS SYMBOL IS USED THROUGHOUT THIS BOOK WHENEVER PERSONAL SAFETY IS INVOLVED. TAKE TIME TO READ AND FOLLOW THE INSTRUCTIONS. BE CAREFUL! CAUTION: PICTURES IN THIS MANUAL MAY SHOW PROTECTIVE SHIELDING OPEN OR REMOVED TO BETTER ILLUSTRATE A PARTICULAR FEATURE OR ADJUSTMENT. BE CERTAIN, HOWEVER, TO CLOSE OR REPLACE ALL SHIELDING BEFORE OPERATING THE MACHINE.

IMPROVEMENTS New Holland Construction is continually striving to improve its products. We reserve the right to make improvements or changes when it becomes practical and possible to do so, without incurring any obligation to make changes or additions to the equipment sold previously. ©1999 NEW HOLLAND CONSTRUCTION

PRECAUTIONARY STATEMENTS PERSONAL SAFETY Throughout this manual and on machine decals, you will find precautionary statements (“CAUTION”, “WARNING”, and “DANGER”) followed by specific instructions. These precautions are intended for the personal safety of you and those working with you. Please take the time to read them.

CAUTION: THE WORD “CAUTION” IS USED WHERE A SAFE BEHAVIORAL PRACTICE ACCORDING TO OPERATING AND MAINTENANCE INSTRUCTIONS AND COMMON SAFETY PRACTICES WILL PROTECT THE OPERATOR AND OTHERS FROM ACCIDENT INVOLVEMENT.

WARNING: THE WORD WARNING DENOTES A POTENTIAL OR HIDDEN HAZARD WHICH HAS A POTENTIAL FOR SERIOUS INJURY. IT IS USED TO WARN OPERATORS AND OTHERS TO EXERCISE EVERY APPROPRIATE MEANS TO AVOID A SURPRISE INVOLVEMENT WITH MACHINERY.

DANGER: THE WORD “DANGER” DENOTES A FORBIDDEN PRACTICE IN CONNECTION WITH A SERIOUS HAZARD. FAILURE TO FOLLOW THE “CAUTION”, “WARNING”, “DANGER”, AND “STOP” INSTRUCTIONS MAY RESULT IN SERIOUS BODILY INJURY OR DEATH.

MACHINE SAFETY Additional precautionary statements (“ATTENTION” and “IMPORTANT”) are followed by specific instructions. These statements are intended for machine safety.

ATTENTION: The word “ATTENTION” is used to warn the operator of potential machine damage if a certain procedure is not followed.

IMPORTANT: The word “IMPORTANT” is used to inform the reader of something he needs to know to prevent minor machine damage if a certain procedure is not followed. ©1999 NEW HOLLAND CONSTRUCTION

SAFETY RULES This symbol is your safety alert sign. It means ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED! Read and heed all safety instruction carrying the signal words WARNING and DANGER. STUDY THE OPERATION AND MAINTENANCE INSTRUCTION MANUAL THROUGHLY BEFORE STARTING, OPERATING, MAINTAINING, FUELING OR SERVICING THIS MACHINE.

MOST ACCIDENTS ARE CAUSED BY FAILURE OF SOME INDIVIDUAL TO FOLLOW SIMPLE AND FUNDAMENTAL SAFETY RULES OR PRECAUTION. FOR THIS REASON MOST ACCIDENTS CAN BE PREVENTED BY RECOGNIZING THE REAL CAUSE AND DOING SOMETHING ABOUT IT BEFORE ACCIDENT OCCURS. REGARDLESS OF THE CARE USED IN THE DESIGN AND CONSTRUCTION OF ANY TYPE OF EQUIPMENT THERE ARE MANY CONDITIONS THAT CAN'T BE COMPLETELY SAFEGUARDED AGAINST WITHOUT INTERFERING WITH REASONABLE ACCESSIBILITY AND EFFICIENT OPERATION.

©1999 NEW HOLLAND CONSTRUCTION

PART 1 - INTRODUCTION PREFACE .................................................................................................................................................. 3 Warnings and symbols ............................................................................................................................ 4 DESIGNATED USE .................................................................................................................................... 4 Organizational measures ........................................................................................................................ 5 Selection and qualification of personnel - basic responsibilities ........................................................ 6 Safety instructions governing specific operational phases Standard operation .................................................................................................................................. 6 Special work in conjunction with utilization of the machine - maintenance and repairs during operation disposal of parts and consumables ........................................................................................................ 7 Warning of special dangers Electric energy ........................................................................................................................................ 8 Gas, dust, steam and smoke .................................................................................................................. 8 Hydraulic and pneumatic equipment ...................................................................................................... 9 Noise ...................................................................................................................................................... 9 Oil, grease and other chemical substances ............................................................................................ 9 Transporting and towing - recommissioning ........................................................................................ 9 California, Proposition 65 Warning ........................................................................................................ 9 SAFETY PRECAUTIONS FOR OPERATION .......................................................................................... 10 General .................................................................................................................................................... 10 Before Operation .................................................................................................................................... 12

PART 1 - INTRODUCTION PREFACE .................................................................................................................................................. 3 Warnings and symbols ............................................................................................................................ 4 DESIGNATED USE .................................................................................................................................... 4 Organizational measures ........................................................................................................................ 5 Selection and qualification of personnel - basic responsibilities ........................................................ 6 Safety instructions governing specific operational phases Standard operation .................................................................................................................................. 6 Special work in conjunction with utilization of the machine - maintenance and repairs during operation disposal of parts and consumables ........................................................................................................ 7 Warning of special dangers Electric energy ........................................................................................................................................ 8 Gas, dust, steam and smoke .................................................................................................................. 8 Hydraulic and pneumatic equipment ...................................................................................................... 9 Noise ...................................................................................................................................................... 9 Oil, grease and other chemical substances ............................................................................................ 9 Transporting and towing - recommissioning ........................................................................................ 9 California, Proposition 65 Warning ........................................................................................................ 9 SAFETY PRECAUTIONS FOR OPERATION .......................................................................................... 10 General .................................................................................................................................................... 10 Before Operation .................................................................................................................................... 12

PART 2 - OPERATION Operation - safety instructions .............................................................................................................. 21 DESCRIPTION OF THE MACHINE Machine layout ...................................................................................................................................... 25 Superstructure ...................................................................................................................................... 25 Undercarriage........................................................................................................................................ 25 Working equipment with backhoe ........................................................................................................ 25 Undercarriage........................................................................................................................................ 25 Superstructure ...................................................................................................................................... 25 Hydraulic system .................................................................................................................................. 25 Steering ................................................................................................................................................ 25 Crawler unit brake ................................................................................................................................ 25 Electrical system .................................................................................................................................. 25 Working equipment .............................................................................................................................. 25 SIGNS Warning and instruction signs .............................................................................................................. 27 Machine number.................................................................................................................................... 27 Engine number ...................................................................................................................................... 27 Component numbers ............................................................................................................................ 27 DRIVERS’S CAB Climbing Up and Down .......................................................................................................................... 28 Opening / Closing the Driver’s Cab Door .............................................................................................. 29 Adjustment of driver’s seat .................................................................................................................... 30 Adjustment of seat suspension. ............................................................................................................ 30 Fore and aft adjustment of seat ............................................................................................................ 30 Adjustment of seat position .................................................................................................................. 30 Adjustment of backrest inclination ........................................................................................................ 30 Adjustment of armrests ........................................................................................................................ 30 Adjusting the control console position Adjusting the Mirrors ............................................................................................................................ 32 Opening and Closing the Windscreen .................................................................................................. 32 Front window - Removing the lower part .............................................................................................. 33 Opening / closing side window .............................................................................................................. 33 Emergency exit...................................................................................................................................... 33 Using the Sunshade .............................................................................................................................. 34 Rolling out the Sunshade ...................................................................................................................... 34 Rolling up the Sunshade ...................................................................................................................... 34 Cab interior lamp - switching on and off ................................................................................................ 35 Socket outlet in cab .............................................................................................................................. 35

MONITORING-, WARNING- AND CONTROL ELEMENTS Description of control panel .................................................................................................................. 36 Control panel operating instructions ...................................................................................................... 37 Control panel .......................................................................................................................................... 38 Supplementary control panel ................................................................................................................ 46 Control elements (SAE-control) ............................................................................................................ 48 STARTING UP THE MACHINE ................................................................................................................ 52 Refuelling Refuelling, safety instructions ................................................................................................................ 52 Refuelling .............................................................................................................................................. 52 Switching the electrical system on and off .......................................................................................... 53 Immobilizer, entering the code .............................................................................................................. 54 Starting and stopping the engine Starting the engine ................................................................................................................................ 55 Starting the engine with cold-starting aid .............................................................................................. 56 Engine does not start ............................................................................................................................ 57 Shutting off the engine .......................................................................................................................... 57 Ventilation and heating Ventilation.............................................................................................................................................. 58 Heating .................................................................................................................................................. 58 Adjusting the heating performance ........................................................................................................ 58 Defrosting the front and rear screens .................................................................................................... 59 Switching the windscreen wiper / washer on and off ............................................................................ 59 To activate intermittent wiping .............................................................................................................. 59 To activate permanent wiping .............................................................................................................. 59 To de-activate the wiper ........................................................................................................................ 59 To activate the wipe / wash function...................................................................................................... 59 DRIVING .................................................................................................................................................. 60 Driving - Safety instructions .................................................................................................................. 60 Fastening the retaining belt .................................................................................................................. 61 Bringing the machine to basic position ................................................................................................ 62 Selecting direction of travel .................................................................................................................. 62 Braking and stopping Braking travelling movement ................................................................................................................ 63

Parking brake / travel ............................................................................................................................ 63 Altering travelling speed Gear mode ............................................................................................................................................ 63 Drive - forward / reverse Travel forwards straight ahead .............................................................................................................. 64 Travel reverse straight ahead ................................................................................................................ 64 Travel forward to right .......................................................................................................................... 65 Travel reverse to right .......................................................................................................................... 65 Travel forward to left .............................................................................................................................. 65 Travel reverse to left .............................................................................................................................. 65 Turning on the spot Turn to left ............................................................................................................................................ 66 Turn to right .......................................................................................................................................... 66 Travel with loading on the hook ............................................................................................................ 67 Travel after PCS failure .......................................................................................................................... 67 After travel operation .............................................................................................................................. 67 Transporting the machine Transport - Safety instructions .............................................................................................................. 68 WORKING OPERATION .......................................................................................................................... 70 Working operation - Safety instructions Extreme positioning of working equipment - Instructions ...................................................................... 71 Before beginning work .......................................................................................................................... 71 Switching on floodlamps........................................................................................................................ 72 Switching on the floodlamps .................................................................................................................. 72 Switching off floodlamps ........................................................................................................................ 72 Automatic speed reduction .................................................................................................................... 73 Switching off the automatic speed reduction ........................................................................................ 73 Switching on the automatic speed reduction ........................................................................................ 73 Selecting the PCS output stage ............................................................................................................ 74 Activating the pilot control .................................................................................................................... 74 Switching off the pilot control ................................................................................................................ 75 Superstructure swinging and braking Superstructure swinging ........................................................................................................................ 76 Swing superstructure to right ................................................................................................................ 76 Swing superstructure to left .................................................................................................................. 76 Superstructure braking .......................................................................................................................... 76 Superstructure holding brake - function ................................................................................................ 76 Applying the superstructure holding brake ............................................................................................ 77

Releasing the superstructure holding brake .......................................................................................... 77 Swing; changing the mode of operation ................................................................................................ 78 Superstructure holding brake - emergency operation .......................................................................... 79 Working with backhoe or grab equipment (SAE-control) Raising and lowering boom .................................................................................................................. 81 Extending and retracting stick .............................................................................................................. 81 Swing superstructure ............................................................................................................................ 81 Filling and emptying backhoe ................................................................................................................ 81 Opening and closing grab .................................................................................................................... 81 Rotating grab ........................................................................................................................................ 81 Activate the Power assist function ........................................................................................................ 81 Activate the Power Boost function ........................................................................................................ 81 Activate the horn .................................................................................................................................. 81 Power assist, function .......................................................................................................................... 82 Switching the power assist on .............................................................................................................. 82 Switching the power assist off .............................................................................................................. 82 Power Boost, function .......................................................................................................................... 83 Switching the Power Boost function on ................................................................................................ 83 Operating methods ................................................................................................................................ 84 Working operation in case of PCS failure Switching the proportional valve over to emergency operation ............................................................ 86 After daily operation Shutting off the machine ........................................................................................................................ 87 WORKING EQUIPMENT .......................................................................................................................... 88 Assembling working equipment - safety instructions Protective roof against falling objects .................................................................................................... 89 Securing the machine ............................................................................................................................ 89 Attaching and detaching the grab equipment Attaching and detaching the grab equipment - Safety instructions........................................................ 90 Attaching the grab ................................................................................................................................ 90 Detaching the grab ................................................................................................................................ 91 Selecting the backhoe / grab equipment .............................................................................................. 92 Detaching / attaching the backhoe bucket .......................................................................................... 93 Corrosion protection for pins and bearings (bushings and hubs) Part nos. for Voler A.C........................................................................................................................... 94 Application of Voler A.C. ...................................................................................................................... 94 HYDRAULIC HAMMER ............................................................................................................................ 96

Working with the hydraulic hammer, safety instructions .................................................................. 96 Working with a hydraulic hammer Switching on the hydraulic hammer ...................................................................................................... 97 Switching off the hydraulic hammer ...................................................................................................... 97 SCRAP SHEARS .................................................................................................................................... 98 Working with scrap shears, safety instructions .................................................................................. 98 Working with scrap shears Switching on the scrap shears .............................................................................................................. 99 Switching off the scrap shears .............................................................................................................. 99 LIFTING-GEAR OPERATION ................................................................................................................ 100 Lifting-gear operation - safety instructions ........................................................................................ 100 Loading hooks on backhoe buckets and couplers Loading hook capacity ........................................................................................................................ 101 Excavator load capacity ...................................................................................................................... 101 Overload warning system Function of overload warning system .................................................................................................. 102 Activating overload warning system .................................................................................................... 102 Testing the overload warning system .................................................................................................. 103 Deactivating overload warning system ................................................................................................ 103 Pipe-fracture safety system, function .................................................................................................. 104 OPTIONAL EQUIPMENT Rotary beacon .................................................................................................................................... 105 Switch rotary beacon ON .................................................................................................................... 105 Switch rotary beacon OFF .................................................................................................................. 105 Switching on the floodlamps at the rear of the cab .............................................................................. 106 Radio .................................................................................................................................................. 107 Refuelling system Refuelling with the refuelling system, safety instructions .................................................................... 108 Refuelling with the refuelling system .................................................................................................. 109 Driver’s seat - adjusting the lumbar support Adjusting the lumbar support .............................................................................................................. 110 Driver’s seat with pneumatic suspension and integrated heating Adjusting the pneumatic suspension .................................................................................................. 111 Fore-and-aft adjustment ...................................................................................................................... 111 Adjusting the seat cushion .................................................................................................................. 111 Adjusting the backrest ........................................................................................................................ 111

Adjusting the armrests ........................................................................................................................ 111 Adjusting the lumbar support .............................................................................................................. 112 Switching on the seat heating ............................................................................................................ 112 To switch on the seat heating: ............................................................................................................ 112 To switch off the seat heating: ............................................................................................................ 112 Air conditioning systems for excavators Operating Instructions ........................................................................................................................ 113 Location of controls ............................................................................................................................ 113 Troubleshooting table for air conditioning systems ........................................................................ 114 Causes of strongly diverging pressure measurements .................................................................... 117 Multi-position boom Description of multi-position boom ...................................................................................................... 118 Working with the multi-position boom .................................................................................................. 118 Lowering boom upper section ............................................................................................................ 118 Raising boom upper section ................................................................................................................ 118 Transporting the machine with multi-position boom ............................................................................ 118 KEYBOARD, FURTHER FUNCTIONS Service (key 16), function .................................................................................................................... 119 Display (key 18), function .................................................................................................................... 120 To indicate the engine revolutions ...................................................................................................... 120 To indicate the time of day .................................................................................................................. 120 Setting the time .................................................................................................................................. 121 Display, setting the contrast ................................................................................................................ 122 Immobilizer, deactivate / activate ........................................................................................................ 123

PART 3 - INSPECTION AND SERVICING Inspection and servicing - safety instructions .................................................................................. 127 Inspection and servicing plans - instructions Plan V - Once before first commissioning .......................................................................................... 132 Plan N - After first commissioning ...................................................................................................... 133 Plan T - every 10 OH or every working shift ........................................................................................ 134 Plan W - every 50 OH or weekly ........................................................................................................ 134 Plan A - after every 250 OH or 6 months ............................................................................................ 135 Plan B - after every 500 OH ................................................................................................................ 135 Plan C - after every 1000 OH .............................................................................................................. 135 Plan D - after every 3000 OH .............................................................................................................. 135 LUBRICATING CHART - GREASE Lubricating chart - Grease .................................................................................................................. 139 LUBRICATING CHART-GREASE Lubricating chart - Grease .................................................................................................................. 141 Filling quantities - grease .................................................................................................................... 141 Joints and hinges ................................................................................................................................ 141 INSPECTION PLAN - OIL Inspection plan - oil ............................................................................................................................ 143 Filling quantities for oil change ............................................................................................................ 143 Other filling quantities .......................................................................................................................... 143 LUBRICANTS ........................................................................................................................................ 144 Oils for internal combustion engines.................................................................................................. 144 Oils for hydraulic system, mineral ...................................................................................................... 145 Oils for gearboxes ................................................................................................................................ 146 Greases for bearing points and swing rings ...................................................................................... 147 SERVICING Draining hose for oil changes .............................................................................................................. 148 ENGINE .................................................................................................................................................. 149 Engine, safety instructions for inspection and servicing Checking the engine oil level / topping up with oil .............................................................................. 150 Checking the drive belts ...................................................................................................................... 151 Checking the coolant level .................................................................................................................. 151 AIR-INTAKE SYSTEM

Emptying the dust collector ................................................................................................................ 152 Removing, checking, and cleaning the main filter element ................................................................ 153 Checking / replacing the safety filter element ...................................................................................... 155 Checking air intake lines .................................................................................................................... 155 FUEL SYSTEM ...................................................................................................................................... 156 Fuel system - Safety instructions Fuel filter - draining water .................................................................................................................... 157 Fuel filter, change ................................................................................................................................ 157 Primary fuel filter, change .................................................................................................................... 157 Bleeding the fuel system .................................................................................................................... 157 Cleaning the fuel tank .......................................................................................................................... 158 ELECTRICAL SYSTEM Electrical system - Safety instructions ................................................................................................ 159 Alternator - instructions ...................................................................................................................... 159 Battery main switch .............................................................................................................................. 160 Battery, checking Battery - checking the fluid level .......................................................................................................... 160 Battery - checking the charge .............................................................................................................. 160 Removing and installing the battery .................................................................................................... 161 HYDRAULIC SYSTEM Hydraulic system - safety instructions ................................................................................................ 162 Depressurizing the hydraulic system .................................................................................................. 162 Checking the hydraulic oil level .......................................................................................................... 163 Topping up with hydraulic oil .............................................................................................................. 163 Changing the hydraulic oil return-flow filters........................................................................................ 164 Replacing the breather valve .............................................................................................................. 164 Changing line filters ............................................................................................................................ 165 Changing the hydraulic oil .................................................................................................................. 166 Draining hydraulic oil .......................................................................................................................... 166 Cleaning the hydraulic oil reservoir .................................................................................................... 167 Renew sealing cord ............................................................................................................................ 167 Filling with hydraulic oil ........................................................................................................................ 167 Venting the hydraulic system .............................................................................................................. 168 Cleaning the combinated cooler .......................................................................................................... 169 SWING GEAR Swing gear - checking oil level ............................................................................................................ 170 Swing gear - changing oil .................................................................................................................... 170 Superstructure holding brake - Function checking .............................................................................. 171 PIVOT CONNECTION

Pivot connection - Instructions ............................................................................................................ 172 Swing ring - checking grease filling .................................................................................................... 172 Swing ring - filling grease .................................................................................................................... 173 Swing ring - lubricating bearing .......................................................................................................... 173 Swing ring - checking tightness of screws .......................................................................................... 174 Lubricating the greasing nipples .......................................................................................................... 174 Greasing the pedal valve tappets ........................................................................................................ 175 Greasing the control valve tappets ...................................................................................................... 175 TRAVEL GEAR UNIT Travel gear unit - checking oil level .................................................................................................... 176 Travel gear unit - changing oil ............................................................................................................ 176 CRAWLER UNIT Cleaning the crawler unit .................................................................................................................... 177 Checking tread rollers and track carrier rollers .................................................................................... 177 Checking the front idler ...................................................................................................................... 178 Crawler shoes - checking tightness of screws .................................................................................... 178 Crawler chain - Checking tension ........................................................................................................ 179 Tensioning the crawler chain .............................................................................................................. 179 Releasing crawler chain tension .......................................................................................................... 180 WINDSCREEN WASHER Topping up the wash fluid .................................................................................................................. 181 Machine shutdown Battery storage .................................................................................................................................... 182 Recommissioning ................................................................................................................................ 182

PART 4 - REPAIR WORK Repair work - safety instructions ........................................................................................................ 185 Accumulators, safety instructions ...................................................................................................... 186 ENGINE Engine, repair instructions .................................................................................................................. 187 Assisted starting (with jump-leads) - safety instructions Assisted starting (with jumper cables) ................................................................................................ 188 Prior to assisted starting ...................................................................................................................... 188 Connecting the jumper cables ............................................................................................................ 188 Starting up the engines ...................................................................................................................... 188 Disconnecting the jumper cables ........................................................................................................ 188 FUSES Checking / replacing the fuses ............................................................................................................ 189 Table of fuses ...................................................................................................................................... 190 BULBS Replacing the bulbs - Notes ................................................................................................................ 191 Bulbs - Table ...................................................................................................................................... 191 Replacing the bulb in the cab interior lamp ........................................................................................ 191 Replacing the bulb of the boom floodlamp .......................................................................................... 192 Replacing the bulb of the floodlamp on driver’s cab ............................................................................ 192 Working equipment - replacing a tooth .............................................................................................. 193 Clamshell, Wear Limits ........................................................................................................................ 194

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OPERATOR’S MANUAL EC 350 PART 1 - INTRODUCTION

Operating manual

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Target group Operating personnel + Inspection and servicing personnel

Part 1 INTRODUCTION FUNDAMENTAL + SAFETY INSTRUCTIONSRepair personnel

Operating personnel

Part 2 OPERATION

The operating personnel must have knowhow relevant to the operation and the application of this or comparable machines.

Inspection and servicing personnel

Part 3 INSPECTION AND SERVICING

The inspection and servicing personnel must have know-how relevant to the inspection and servicing of this or comparable machines.

Repair personnel

Part 4 REPAIR WORK

Part 5 ANNEX

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The repair personnel must have know-how and experience relevant to the repair of this or comparable machines.

Operating personnel + Inspection and servicing personnel + Repair personnel

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OPERATOR’S MANUAL EC 350

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OPERATOR’S MANUAL EC 350 PREFACE These operating instructions are designed to familiarize the operator with the machine and its designated use.

The instruction manual contains important information on how to operate the machine safely, properly and with maximum efficiency. Observing these instructions helps to prevent hazardous situations, to reduce repair costs and downtimes and to increase the reliability and service life of the machine.

The instruction manual must be supplemented by the respective national rules and regulations for accident prevention and environmental protection.

The operating instructions must always be available in the operator’s cab of the machine.

The operating instructions must be read and put into practice by any person in charge of carrying out work with or on the machine, such as - operation, including setting-up, troubleshooting in the course of work, care, evacuation of production waste and disposal of fuels and consumables.

- maintenance (inspection, servicing, repair) and / or - transport.

In addition to the operating instructions and the mandatory rules and regulations for accident prevention and environmental protection in the user’s country and at place where the machine is to be used, the generally recognized technical rules for safe and proper working must be observed.

2801339

The operating instructions are directed to the construction-machine specialist. They cannot provide basic know-how. This can be acquired, for example, in several days’ instruction by a qualified NEW HOLLAND CONSTRUCTION mechanic or by attending an NEW HOLLAND CONSTRUCTION training course for operators or maintenance personnel.

The NEW HOLLAND CONSTRUCTION aftersales service will be pleased to deal with any queries you may have after reading through the operating instructions.

This operating manuals are issued in German and then translated. Even a good translation may give rise to questions which NEW HOLLAND CONSTRUCTION will be pleased to answer.

The operating instructions are not work instructions for carrying out major repairs. Such work is willingly done for you by the NEW HOLLAND CONSTRUCTION after-sales service.

The documentation relating to the machine is listed according to scope, quantity and language in the shipping note of the machine or in the covering letter if supplied separately. The operating instructions and spare-parts list are marked with the serial number of the machine.

On taking receipt of the consignment, please check that the documentation is complete and in the language requested by you.

This information is valid at the moment of printing. As the manufacturer constantly improves his products, some information may result as not updated. In case of differences, always ask your Service Center.

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OPERATOR’S MANUAL EC 350

Warnings and symbols

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The following signs are used in the manual to designate instructions of particular importance:

Fitted with other attachments, the excavator can also be used as a special-purpose machine, e.g. for drilling, with lifting tackle or with a hydraulic hammer.

Imminent danger involving the risk of death or of severe injuries.

Operating the machine within the limits of its designated use also involves observing the instructions set out in the operating manual and complying with the inspection and maintenance directives.

Precautionary rules and measures designed to protect the machine operator and other persons from life-threatening danger or injuries and to prevent extensive damage.

Information and precautionary measures designed to prevent damage to the machine or other property.

DESIGNATED USE

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The machine has been built in accordance with state-of-the-art standards and the recognized safety rules. Nevertheless, its use may constitute a risk to life and limb for the user or third parties or cause damage to the machine and to other material property.

The machine must be used only in technically perfect condition in accordance with its designated use and the instructions set out in the operating manual, and only by safety-conscious persons who are fully aware of the risks involved in operating the machine. Any functional disorders, especially those affecting the safety of the machine, should therefore be rectified immediately.

The excavator with dipper shovel, grab or scoop attachment is designed solely for excavating and loading: - excavatable soils, sand, gravel, blasted rock, ore, coal and other raw materials.

4

Using the excavator or its attachments for purposes other than or extending beyond those stated above, e.g.: - for lifting or transporting persons, - as a working platform, - for lifting crane loads without the equipment being approved for this purpose, - for towing trailer-mounted loads, - for driving in posts, supports, sheet piles etc. without the equipment being approved for this purpose, is considered contrary to the designated use.

Improper use may involve a life-threatening risk for operators or other personnel or may cause injury or extensive damage.

The manufacturer/supplier cannot be held liable for any damage resulting from other than the designated use. The risk involved in such misuse lies entirely with the user.

Noise emission specification in acc. with the 3rd Ordinance of the Machine Safety Act of 18th January 1991 resp. with EC Machine Directive, Annex I, para. 1.7.4 f.

If the earth-moving machine is operated in accordance with its designated use, the installation of driver’s seats complying with ISO 7096 ensures that the considered vibration accelerations azw (measured as per ISO 2631, Part 1) fulfil the requirements of protecting the driver against wholebody vibration.

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OPERATOR’S MANUAL EC 350

Organizational measures The operating instructions must always be at hand at the place of use of the machine, e.g. by stowing them in the tool compartment or tool-box provided for such purpose.

In addition to the operating instructions, observe and instruct the user in all other generally applicable legal and other mandatory regulations relevant to accident prevention and environmental protection.

These compulsory regulations may also deal with the handling of hazardous substances, issuing and/or wearing of personal protective equipment or traffic regulations.

The operating instructions must be supplemented by instructions covering the duties involved in supervising and notifying special organizational features, such as job organization, working sequences or the personnel entrusted with the work.

Personnel entrusted with work on the machine must have read the operating instructions and in particular the chapter on safety before beginning work. Reading the instructions after work has begun is too late. This applies especially to persons working only occasionally on the machine, e.g. during setting up or maintenance.

Check - at least from time to time - whether the personnel is carrying out the work in compliance with the operating instructions and paying attention to risks and safety factors.

For reasons of security, long hair must be tied back or otherwise secured, garments must be close-fitting and no jewellery, such as rings, may be worn. Injury may result from being caught up in the machinery or from rings catching on moving parts.

2261965

Observe all safety instructions and warnings attached to the machine.

See to it that safety instructions and warnings attached to the machine are always complete and perfectly legible.

In the event of safety-relevant modifications or changes in the behaviour of the machine during operation, stop the machine immediately and report the malfunction to the competent authority/person.

Never make any modifications, additions or conversions which might affect safety without the supplier’s approval. This also applies to the installation and adjustment of safety devices and valves as well as to welding work on load-bearing elements.

Spare parts must comply with the technical requirements specified by the manufacturer. Spare parts from original equipment manufacturers can be relied to do so.

Replace hydraulic hoses within stipulated and appropriate intervals, even if no safety-relevant defects have been detected.

Adhere to prescribed intervals or those specified in the operating instructions for routine checks and inspections.

For the execution of maintenance work, tools and workshop equipment adapted to the task on hand are absolutely indispensable.

The personnel must be familiar with the location and operation of fire extinguishers.

Observe all fire-warning and fire-fighting procedures.

Use protective equipment wherever required by the circumstances or by law.

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OPERATOR’S MANUAL EC 350

Selection and qualification of personnel - basic responsibilities

Safety instructions governing specific operational phases

Any work on and with the machine must be executed by reliable personnel only. Statutory minimum age limits must be observed.

Standard operation

Employ only trained or instructed staff and set out clearly the individual responsibilities of the personnel for operation, set-up, maintenance and repair.

Make sure that only authorized personnel works on or with the machine.

Define the machine operator’s responsibilities also with regard to observing traffic regulations giving the operator the authority to refuse instructions by third parties that are contrary to safety.

Do not allow persons to be trained or instructed or persons taking part in a general training course to work on or with the machine without being permanently supervised by an experienced person.

Work on the electrical system and equipment of the machine must be carried out only by a skilled electrician or by instructed persons under the supervision and guidance of a skilled electrician and in accordance with electrical engineering rules and regulations.

Work on chassis, brake and steering systems must be performed by skilled personnel only, which has been specially trained for such work.

Work on the hydraulic system must be carried out only by personnel with special knowledge and experience of hydraulic equipment.

Avoid any operational mode that might be prejudicial to safety.

Before beginning work, familiarize yourself with the surroundings and circumstances of the site, such as obstacles in the working and travelling area, the soil bearing capacity and any barriers separating the construction site from public roads.

Take the necessary precautions to ensure that the machine is used only when in a safe and reliable state.

Operate the machine only if all protective and safety-oriented devices, such as removable safety devices, emergency shut-off equipment, soundproofing elements and exhausters, are in place and fully functional.

Check the machine at least once per working shift for obvious damage and defects. Report any changes (incl. changes in the machine’s working behaviour) to the competent organization/person immediately. If necessary, stop the machine immediately and lock it.

In the event of malfunctions, stop the machine immediately and lock it. Have any defects rectified immediately.

Start the machine from the driver’s seat only.

During start-up and shut-down procedures always watch the indicators in accordance with the operating instructions.

Before setting the machine in motion, make sure that nobody is at risk.

Before starting work or travelling with the machine, check that the braking, steering, signalling and lighting systems are fully functional.

Before setting the machine in motion always check that the accessories have been safely stowed away.

When travelling on public roads, ways and places always observe the valid traffic regulations and, if necessary, make sure beforehand that the machine is in a condition compatible with these regulations.

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OPERATOR’S MANUAL EC 350

In conditions of poor visibility and after dark always switch on the lighting system.

Persons accompanying the driver must be seated on the passenger seats provided for this purpose.

When crossing underpasses, bridges and tunnels or when passing under overhead lines always make sure that there is is sufficient clearance.

Always keep at a distance from the edges of building pits and slopes.

Avoid any operation that might be a risk to machine stability.

Never travel across slopes; always keep the working equipment and the load close to the ground, especially when travelling downhill.

On sloping terrain always adapt your travelling speed to the prevailing ground conditions. Never change to a lower gear on a slope but always before reaching it.

Before leaving the driver’s seat always secure the machine against inadvertent movement and unauthorized use.

Special work in conjunction with utilization of the machine - maintenance and repairs during operation - disposal of parts and consumables Observe the adjusting, maintenance and inspection activities and intervals set out in the operating instructions, including information on the replacement of parts and equipment. These activities may be executed by skilled personnel only.

Brief operating personnel before beginning special operations and maintenance work, and appoint a person to supervise the activities.

In any work concerning the operation, conversion or adjustment of the machine and its safety-oriented devices or any work related to maintenance, inspection and repair, always observe the start-up and shut-down procedures set out in the operating instructions and the information on maintenance work.

Ensure that the maintenance area is adequately secured.

If the machine is completely shut down for maintenance and repair work, it must be secured against inadvertent starting by: - removing the ignition key and - attaching a warning sign.

Carry out maintenance and repair work only if the machine is positioned on stable and level ground and has been secured against inadvertent movement and buckling.

To avoid the risk of accidents, individual parts and large assemblies being moved for replacement purposes should be carefully attached to lifting tackle and secured. Use only suitable and technically perfect lifting gear and suspension systems with adequate lifting capacity. Never work or stand under suspended loads.

The fastening of loads and the instructing of crane operators should be entrusted to experienced persons only. The marshaller giving the instructions must be within sight or sound of the operator.

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7

OPERATOR’S MANUAL EC 350

For carrying out overhead assembly work always use specially designed or otherwise safety-oriented ladders and working platforms. Never use machine parts as a climbing aid.

Wear a safety harness when carrying out maintenance work at greater heights.

Keep all handles, steps, handrails, platforms, landings and ladders free from dirt, snow and ice.

Clean the machine, especially connections and threaded unions, of any traces of oil, fuel or preservatives before carrying out maintenance/repair. Never use aggressive detergents. Use lintfree cleaning rags.

Before cleaning the machine with water, steam jet (high-pressure cleaning) or detergents, cover or tape up all openings which - for safety and functional reasons - must be protected against water, steam or detergent penetration. Special care must be taken with electric motors and switchgear cabinets.

Ensure during cleaning of the machine that the temperature sensors of the fire-warning and firefighting systems do not come into contact with hot cleaning agents as this might activate the fire-fighting system.

After cleaning, remove all covers and tapes applied for that purpose.

After cleaning, examine all fuel, lubricant, and hydraulic fluid lines for leaks, loose connections, chafe marks and damage. Any defects found must be rectified without delay.

Always tighten any screwed connections that have been loosened during maintenance and repair.

Any safety devices removed for set-up, maintenance or repair purposes must be refitted and checked immediately upon completion of the maintenance and repair work.

Ensure that all consumables and replaced parts are disposed of safely and with minimum environmental impact.

Warning of special dangers Electric energy Use only original fuses with the specified current rating. Switch off the machine immediately if trouble occurs in the electrical system.

When working with the machine, maintain a safe distance from overhead electric lines. If work is to be carried out close to overhead lines, the working equipment must be kept well away from them.

Caution, danger! Check out the prescribed safety distances.

If your machine comes into contact with a live wire - do not leave the machine - drive the machine out of the hazard zone - warn others against approaching and touching the machine - have the live wire de-energized - do not leave the machine until the damaged line has been safely de-energized.

The electrical equipment of machines is to be inspected and checked at regular intervals. Defects such as loose connections or scorched cables must be rectified immediately.

Gas, dust, steam and smoke Operate internal combustion engines and fueloperated heating systems only on adequately ventilated premises. Before starting the machine on enclosed premises, make sure that there is sufficient ventilation.

Observe the regulations in force at the respective site.

Carry out welding, flame-cutting and grinding work on the machine only if this has been expressly authorized, as there may be a risk of explosion and fire.

Before carrying out welding, flame-cutting and grinding operations, clean the machine and its surroundings from dust and other inflammable substances and make sure that the premises are adequately ventilated (risk of explosion).

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OPERATOR’S MANUAL EC 350

Hydraulic and pneumatic equipment Check all lines, hoses and screwed connections regularly for leaks and obvious damage. Repair damage immediately. Splashed oil may cause injury and fire.

Transporting and towing - recommissioning The machine must be towed, loaded and transported only in accordance with the operating instructions.

Depressurize all system sections and pressure pipes (hydraulic system, compressed-air system) to be removed in accordance with the specific instructions for the unit concerned before carrying out any repair work.

For towing the machine observe the prescribed transport position, admissible speed and itinerary.

Hydraulic and compressed-air lines must be laid and fitted properly. Ensure that no connections are interchanged. The fittings, lengths and quality of the hoses must comply with the technical requirements.

The recommissioning procedure must be strictly in accordance with the operating instructions.

Noise During operation, all sound baffles of the machine must be closed.

Always wear the prescribed ear protectors.

Use only appropriate means of transport and lifting gear of adequate capacity.

California, Proposition 65 Warning 2732686

Diesel engine exhaust and some of its constituents are known to the state of California to cause cancer, birth defects, and other reproductive harm.

Oil, grease and other chemical substances When handling oil, grease and other chemical substances, observe the product-related safety regulations.

Be careful when handling hot consumables (risk of burning or scalding).

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9

OPERATOR’S MANUAL EC 350

Fig. 4

Fig. 5

• Examine the lay of the land and the kind of soil at the work site to determine the dangerous points and the best method of opreation.

Proceed with the work only after making safety arrangements about the dangerous points (Fig. 4).

• Fasten the seat belt securely (Fig. 5), if equipped with Roll-Over Protective Structure (ROPS).

• Clear obstacles from path of machine. Beware of hazards such as wires and ditches.

• Keep machine, especially deck and steps, free of foreign material.

Secure all loose items such as lunch boxes, tools, etc. Clean steps, grab irons and operator’s platform.

• Inspect the seat belt, buckle and mounting hardware. Replace the belt or any damaged hardware.

Tighten any loose mounting hardware.

• Adjust the seat so that full brake pedal travel can be obtained with operator’s back against the seat back.

• Do not start the machine or move any of the controls if there is a warning tag attached to the controls or starter switch.

• Structural damage, an overturn, modification, alteration, or improper repair can impair this structure’s protection capability thereby voiding this certification. Consult a NEW HOLLAND CONSTRUCTION dealer to determine this structure’s limitations without voiding its certifications.

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11

OPERATOR’S MANUAL EC 350

Before Operation • Start and operate the engine only in a well ventilated area. In an enclosed area, vent the engine exhaust to the outside.

• The front window of the cab serves as an emergency exit. Use it only if left hand door is blocked.

• Clean windows. Secure door and windows in either open or shut position.

Fig. 7

• Know the hand signals and who gives them.

Accept signals from one person only.

Fig. 6

• Climb on and off the machine only where steps and/or grab irons are provided (Fig. 6).

• Confirm that all gauges and warning devices are functioning correctly, and that the gauge readings are within the prescribed range.

• Use both hands and face the machine when mounting and dismounting.

• Test all of the controls, before starting to work.

• Never get on or off a moving machine.

• Test the right and left steering before moving the machine.

• Never jump off a machine.

• Do not try to climb onto the machine while carrying tools or supplies.

• In dangerous places, always work in teams of two; one man to operate the machine, and the other to give instructions.

• Keep all personnel and objects clear of the swing range. Always be aware of your surroundings when operating. Be especially careful when swinging in confined areas not to bump the rear of the machine into something (Fig. 7).

• Be sure that all brakes are operating properly before moving the machine.

• Make sure the horn, backup buzzer, etc., are working properly.

• Check for proper operation of all controls and protective devices while moving slowly in an open area.

• Make sure no one is working on, underneath, or close to the machine before starting the engine, or beginning to move the machine.

• Lower the bucket and move controls to NEUTRAL before starting the engine.

• Operate the controls only while seated. Operate the controls only with the engine running except during the engine starting procedure.

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OPERATOR’S MANUAL EC 350

• Do not allow riders on the machine unless additional seat, seat belt and rollover protection are provided.

• Do not operate the machine in an overload condition.

• Always sit in the operator’s seat when operating the machine.

• Do not allow unauthorized persons into the work area.

• It is extremely dangerous to allow yourself to be distracted or to think of other things when operating a machine.

• Never attempt to put the machine to use other than specified.

• Do not use the bucket as a hammer or pile driver.

Such operation will damage the bucket and other front attachments parts (Fig. 8).

Fig. 9

• Do not move machine unless you first learn well how to use travel drive pedals B to obtain the desired direction of travel. If travel drive motors A are located in front of cab push down the rear of pedal B to move forward. Do not travel without the help of a flagman preceding the machine. Do not travel near the edge of a ditch, gully, trench or excavation. Proceed with much care where room is limited, over rough or sloping grounds (Fig. 9).

• Be particularly careful to check that the rear is clear before backing the machine.

Fig. 8

• Do not use the bucket as a brake except in emergencies.

• Keep the machine under control - do not try to work it over its capacity.

• Keep work site flat. By continually grading the work site, work efficiency will be improved and machines will be able to drive smoothly over the site.

Make sure that the worksite footing has sufficient strength to firmly support the machine (Fig. 10).

Fig. 10

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13

OPERATOR’S MANUAL EC 350

• Before crossing bridges or other structures, confirm that they are strong enough to hold the machine.

• When reaching an area that appears dangerous or where visibility is poor, get off your machine to check for safety before starting work.

• Do not operate the machine under or near an overhanging ledge.

• To climb over obstacles such as rocks, move slowly while checking machine stability; never move diagonally or at high speed or the machine might tip over.

• Make sure the worksite footing has sufficient strength to firmly support the machine. When working close to an excavation, position your machine with the travel motors (M) at the rear (Fig. 12).

• Select correct shoes.

Never use a wide shoe and marsh type shoe for rough ground (which involve rocks, sand and gravel, pebbles, etc.), as they are designed for soft and weak ground. Using theses shoes on rough ground will cause bending and loosening of the shoes, and may damage other undercarriage components (links and rollers).

Fig. 13 Fig. 11

• Serious injury or death can result from contact with electric lines (Fig. 11).

Never move any part of the machine or load closer to electric line than 3m (10 ft) plus twice the line insulator length.

• When you operate, move or hault the excavator, avoid contact between boom or arm and overhead obstacles (Fig. 13).

Before you dig, check the location of cables, gas lines and water mains. Do not dig under the machine. If engine stops during operation on a hillside, lower the bucket to ground. Start engine immediatly.

Fig. 12

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OPERATOR’S MANUAL EC 350

• Do not travel the machine with the bucket thrust into the ground or dig by using the machine’s weight.

These operations applay excessive stresses on the machine (Fig. 14).

• When operating at night, remember the follwing points: - Be sure to arrange an adequate lighting system.

- Make sure lights are working properly.

- At night is very easy to make mistakes in assuming the distance and height of objects and land.

• Stop the machine frequently at night-walk around and inspect the machine-stay alert.

Fig. 14

• When loading trucks or hoppers, be careful not to hit the truck or hopper with the bucket. Do not bring the bucket over people’s heads or over the cab of the truck.

• On windy days, always load downwind.

• Check clearance prior to entering areas with limited clearance such as tunnels, overpasses, power cables, and garages.

• Do not work when visibility is reduced by smoke, fog or dust. If the jobsite is dark, install lighting as necessary.

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Fig. 15

• Carry the bucket low at all times, especially when you work on a hillside or travel. Carry the bucket high enough to clear obstacles. Do not let anyone ride in the bucket (Fig. 15).

• Stay a safe distance from the edge of cliffs, overhangs, slides areas and from other machines.

• In a narrow or enclosed area, take care not to let your machine contact surrounding or overhead objects.

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OPERATOR’S MANUAL EC 350

Fig. 16

Fig. 17

• Care to be exercised when working on a slope (Fig. 16).

• When you operate on a slope, do not swing the bucket down-hill if possible. When you swing heavy loads to the side of the tracks, avoid tipping the excavator. When the bucket is loaded, be careful when you swing or lift the boom (Fig. 17).

Machine operation on a slope involves danger. Step down speed, using care so the machine does not turn over and slide sideways.

• Do not change directions on a slope as it causes the machine to turn over or slide sideways. In case you must change direction on a slope for an unavoidable reason, do it on a mild slope with solid ground.

• If you notice any abnormal noise, vibration, heat, odor, or gauge reading, immediately drive your machine to a safe area and stop it.

Locate the cause of the problem and take proper measures.

• Report needed repairs immediately.

• Always stop the engine when adding fuel. After adding fuel, tighten the fuel cap properly.

• Avoid crossing a slope as it may cause the machine to slip sideways.

• Be sure hitch points and tow cable are adequate.

• When working on a slope, do not swing the machine torward the vally as if the side of the machine is loaded, it may turn over. Perform swing and boom actions carefully at low speed.

• Connect the trailing equipment to a drawbar or hitch only.

16

• Personnel should not be between the machine and the trailing equipment while maneuvering to connect. Block tongue or hitch of trailing equipment to align it with the drawbar or hitch.

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OPERATOR’S MANUAL EC 350

• When a river bed is flat and water current is slow, the machine may be operated in a water depth to the upper rolling face of the upper roller (A, Fig. 19).

Where river bed condition is poor or water current is fast, pay full attention so the swing bearing, swing pinion, gear and swivel joint are not immersed in water, sand and oil.

• On a soft ground, the machine body sinks little by little in some cases. Therfore, pay full attention the under body of the machine at all times during operation.

Fig. 18

• If the excavator needs to be towed, or is used to tow another vehicle, attach the tow ropes as shown (Fig. 18).

Only designated towing or pulling attachment points are to be used for towing or pulling. Do not start suddenly at full throttle against a tow chain or cable. Take up slack carefully.

Fig. 20

• Before you leave the cab: Lower bucket to ground stop engine. Shift control lever to neutral. When the excavator is parked on slopes, lock the tracks with suitable blocks. Never park or stand with tracks pointing downhill. Do not leave the lock switch key in cab: take key with you (Fig. 20).

Fig. 19

• Operating the machine in water and on soft ground.

If the machine is operated after the swing bearing, swing pinion, gears and swivel joint are immersed in water, sand or soil, the swing bearing and others may be worn abnormally.

Immediate replacement of grease or overhaul of the swing bearing is required. Suspend operation and get in touch with your nearby servicing dealer.

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OPERATOR’S MANUAL EC 350

Fig. 21

Fig. 23

• Be sure to stop the engine.

Place the machine on level ground. Lower the bucket to the ground (Fig. 21).

• Place a sign "Under inspection and maintenance" on the cab door or control lever (Fig. 23).

Never get under the machine when it is self jacked by the boom and arm.

When inspecting or servicing the machine with raised boom and arm always use safety blocks, props, stands etc.

Fig. 22

• Avoid dangerous situations.

Never attempt to get on or off the machine while it is operating. When getting on or off the machine, use handles and stepping points (Fig.22).

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OPERATOR’S MANUAL EC 350 PART 2 - OPERATION

Operating manual

2261177

Target group Operating personnel + Inspection and servicing personnel

Part 1 INTRODUCTION FUNDAMENTAL + SAFETY INSTRUCTIONSRepair personnel

Operating personnel

Part 2 OPERATION

The operating personnel must have knowhow relevant to the operation and the application of this or comparable machines.

Inspection and servicing personnel

Part 3 INSPECTION AND SERVICING

The inspection and servicing personnel must have know-how relevant to the inspection and servicing of this or comparable machines.

Repair personnel

Part 4 REPAIR WORK

Part 5 ANNEX

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The repair personnel must have know-how and experience relevant to the repair of this or comparable machines.

Operating personnel + Inspection and servicing personnel + Repair personnel

19

OPERATOR’S MANUAL EC 350

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OPERATOR’S MANUAL EC 350 Operation - safety instructions

2801341

Operating instructions

Safety belt

Never operate the machine before having read and understood the operating instructions.

For machines with a safety belt for operating personnel:

Pay special attention to: "Fundamental Safety Instructions" and all warnings and safety instructions attached to the machine.

Familiarize yourself with the layout, the functioning and the activating devices of the control elements prior to starting up the machine.

Activate the control elements from the driver’s seat only.

Check safety belt attached to driver’s seat. In the event of damage or after an accident, have it replaced immediately.

Apply safety belt before starting work.

State of the machine Operate the machine only in a safe state and only in accordance with its designated use. Always observe the safety instructions.

Keep the operating instructions with the machine at all times.

Always have inspection and maintenance work carried out on schedule.

Note: The operating instructions should be secured to the seat in the cab.

Operate the machine only with the equipment and component combinations approved by NEW HOLLAND CONSTRUCTION. Clear-cut data are given in the technical specifications.

Operating personnel The operating personnel must be fully informed of the operation and application of this or comparable machines.

Never install and commission other equipment and component combinations without NEW HOLLAND CONSTRUCTION having first inspected and approved the project.

Personal protective gear and working clothing

Before starting work or travelling with the machine, check that the braking, steering, signalling and lighting systems are fully functional.

Wear a safety helmet and working footwear with non-slip soles. Smooth soles may slip from steps and pedals, resulting in injury or incorrect operation.

Wear closely fitting working clothing when operating the machine. Loose, wide garments may result in the control lever being inadvertently activated.

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Poor visibility may result in accidents. Always clean the windows and the glass covers of all lights before starting up the machine.

Check that all warnings and safety instructions attached to the machine are present and legible.

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OPERATOR’S MANUAL EC 350

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OPERATOR’S MANUAL EC 350

Entering and leaving the machine

Marshallers

Always face the machine when entering and leaving.

The marshall must keep outside the hazard zone.

Use only the steps, platforms and handrails provided when entering and leaving the machine.

Have a marshall to assist you: - when you have no clear overview over the hazard zone of the machine, - when reversing, - when shunting.

Always keep steps, platforms, handles and handrails in a non-slip, safe state and remove any oil, grease, soil, clay, snow, ice and other foreign matter immediately.

Hazard range The hazard range is that zone around the machine in which persons are within reach of falling loads or falling attachments due to operational movements by the machine, to its equipment and attachments or to swinging loads.

Use only those communication signals which you and the marshall understand, or use aids for communication (e.g. walkie-talkie / camera). Calls cannot be understood by the marshaller because of the noise made by the machine during operation.

Keep in constant contact with the marshaller.

Stop the machine immediately if you lose contact with the marshaller.

Persons within the hazard zone Always use the horn to warn persons in the immediate vicinity of the machine before starting up the machine.

Ensure that no one sets foot in the hazard zone of the machine. Interrupt work until such persons have left the hazard zone.

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Securing the machine Secure the machine as described in the section "Securing the Machine" before: - mounting or dismantling the attachment, - parking the machine after daily operation, - carrying out any servicing or repair work.

23

OPERATOR’S MANUAL EC 350 DESCRIPTION OF THE MACHINE

2801182

Fig. 24

24

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OPERATOR’S MANUAL EC 350 Machine layout (Key to Fig. 1)

Undercarriage

Superstructure 1 - Fuel tank 2 - Hydraulic oil reservoir 3 - Driver’s cab 4 - Hydraulik pumps 5 - Engine and exhaust system 6 - Counterweight 7 - Combinated cooling system 8 - Air intake system 9 - Swing gear 10 - Batteries 11 - Swing ring

The undercarriage of the hydraulic excavator serves as a stable base, and for travelling. Drive is accomplished hydraulically via oil motors and travel gear units. The undercarriage and superstructure are connected by a swing ring.

Undercarriage 12 - Travel gear unit 13 - Crawler chain 14 - Track carrier roller 15 - Tread roller 16 - Chain tensioning device 17 - Front idler 18 - Rotor

Working equipment with backhoe 20 - Backhoe 21 - Toggle link 22 - Toggle lever 23 - Backhoe cylinder 24 - Stick 25 - Stick cylinder 26 - Monobloc boom 27 - Boom cylinder

Superstructure The drive engine and some of the hydraulic and electrical equipment are located in the superstructure.

The superstructure carries the working equipment.

Hydraulic system All working and travelling movements are carried out hydraulically. The commands are initiated manually and transmitted by control circuits. The oil supply from superstructure to undercarriage is carried out by the rotor. The hydraulic system is protected against overload by means of pressure limiting valves.

Steering The crawler chains are driven independently of each other.

Alteration of direction of travel and steering are accomplished by controlling the travel motors.

Crawler unit brake When the machine is stopped each crawler unit is braked by a crawler unit brake (parking brake).

Electrical system The electrical system operates on 24 volts.

An electronic voltage regulator moreover supplies a voltage of 12 V. Electronic modules (Power Control System) ensure that the available engine power is converted in an optimal way into hydraulik power.

Working equipment Working equipment consists in: Monobloc boom, stick, toggle link and lever and backhoe.

It is also possible to attach other excavating devices and attachments.

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OPERATOR’S MANUAL EC 350 2732730

Fig. 1

26

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OPERATOR’S MANUAL EC 350 SIGNS Engine number Fig. 1 shows the location of warning and instruction signs on the machine.

Warning and instruction signs

2472058

The engine number is imprinted on the nameplate (Fig. 3).

2801342

Always observe the warning and instruction signs attached to the machine.

Keep signs clean and legible.

Replace signs immediately if they have become illegible.

New warning and instruction signs can be ordered from the NEW HOLLAND CONSTRUCTION Spare-Parts Service. The Part nos. required for orders can be found in the spare-parts list of your machine.

Machine number

2472323

Fig. 3

Component numbers

2732688

Other larger components also have nameplates where, amongst other things, their serial number is indicated.

The nameplate with the machine number is at the front on the frame (Fig. 2).

Fig. 2

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27

OPERATOR’S MANUAL EC 350 DRIVERS’S CAB Climbing Up and Down

2796954

Hazard of Injuries You may slip off soiled grab handles and foot steps.

Clean grab handles, foot steps and your shoes of oil, grease, soil, loam, snow, ice and other substances.

Keep foot steps and platforms in safeto-step and handles in safe-to-grip condition.

• Always face the machine when entering or leaving it.

Fig. 1

• Use only the steps, platforms and grab handles provided for entering and leaving the machine (refer to the illustrations).

• When leaving the driver’s cab, never use operating or control levers as grab handles.

These are not designed for such load.

Fig. 2

Fig. 3

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OPERATOR’S MANUAL EC 350 Opening / Closing the Driver’s Cab Door 2796610

Opening the Door from Outside • Unlock the door (Fig. 4).

• Withdraw the flap on the door lock (arrow, Fig. 4).

The door can now be opened.

• Fully opened, the door can be locked into place.

Opening the Door from Inside To open the driver’s cab door from inside, press forward the lever (Fig. 5).

Closing the Door • Unlock the opened, locked-in door by pushing downwards the lever (Fig. 6). Grab the handle on the upper side of the door frame and close the door.

Fig. 4

Fig. 5

Fig. 6

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OPERATOR’S MANUAL EC 350 Adjustment of driver’s seat The seat permits adjustment of backrest inclination, height and position. The suspension of the seat can be adjusted to suit the driver’s weight.

2796955

Adjustment of seat suspension.

• Adjust seat to the driver’s weight using knob (3, Fig. 7) to adapt the suspension accordingly.

Fore and aft adjustment of seat

Risk of accidents Do not adjust the seat during driving.

Concentrate on the road to avoid accidents.

Before adjusting the seat: - Stop the machine. To do so, release the travel pedals. They return to their central position.

• Pull lever (4) upwards, move seat forwards or backwards to the desired position and allow lever to engage in the corresponding locking notch.

Adjustment of seat position • Height and inclination forwards/backwards: - pull handle (2) upwards, adjust seat and engage handle (2).

Adjustment of backrest inclination • Pull lever (5) upwards, adjust backrest and allow lever (5) to engage.

Adjustment of armrests • The armrests can be raised backwards. Their inclination can be adjusted with knobs (1).

Fig. 7

30

The driver’s seat can be equipped with: - lumbar support or - pneumatic suspension and - integrated heating (see: "Optional Equipment").

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OPERATOR’S MANUAL EC 350 Adjusting the control console position

2732715

Risk of accidents Do not adjust the position of the control consoles during driving.

Concentrate on the road to avoid accidents.

Do not change the position of the control consoles when the hydraulic pilot control is on, to avoid the risk of initiating working equipment movements by inadvertently touching a control lever.

Fig. 9

Before changing the position of the control consoles: - stop the machine, to do so, release travel pedals (61 and 63, Fig. 8), they return to the middle position automatically,

The control consoles on the right and on the left of the driver’s seat can be shifted forwards and backwards parallel to the seat by approximately 16 cm (6.3") to enable the operator to choose his individual position for fatigue-free working.

- set working equipment down to the ground,

Adjusting the righthand control console:

- shut off engine,

• Push lever (72, Fig. 9) forwards against the spring resistance and maintain while shifting the console into the desired position.

- swith off the pilot control with lever (77).

The lever for switching the hydraulic pilot control (77) on and off is attached to the lefthand control console.

The control console swings up when the pilot control is switched off.

For switching the pilot control on, the control console is pushed downwards until it engages (cf. "Switching on the pilot control").

Release lever and check that the console is locked firmly in place.

Adjusting the lefthand control console: • Push lever (75) forwards against the spring resistance and maintain while shifting the console into the desired position.

Release lever and check that the console is locked firmly in place.

Fig. 8

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OPERATOR’S MANUAL EC 350 Adjusting the Mirrors

Opening and Closing the Windscreen 2716646

2796933

The outside mirrors of the machine (Fig. 10) must be adjusted so that as wide a part of the working area as possible can be overlooked.

The windscreen can be pushed under the roof of the driver’s cab.

• Sit down on the driver’s seat.

• Grab the right and left handles of the windscreen and press down the locks (Fig. 11).

• Have the outside mirrors adjusted by an assistant.

• Roll the sunshade up.

• Tilt the windscreen inwards and pull it fully back in upward direction.

• Release the locks, they will engage.

• Make sure both locks are properly engaged.

If the locks are not properly engaged, the windscreen may move forward under high vibration.

Fig. 10

Fig. 11

32

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OPERATOR’S MANUAL EC 350 Front window - Removing the lower 2904038 part

Opening / closing side window

The lower part of the front window can be removed. To do so:

• Release locking device (Fig. 14) and push pane forwards and lock it at the desired position.

To close, pull the pane to rear until the locking device engages.

• open both latches on the right and left side of the window by swinging the levers (Fig. 12) away from the front window.

2472067

• Take out the pane and place into the supports in front of the rear window (1, Fig. 13).

• Allow both latches to engage in the supports (2) on the right and left of the rear window swinging the levers in the direction of the front pane.

Fig. 14

Emergency exit Fig. 12

2472065

Use the front window as emergency exit if the driver’s cab door cannot be opened due to damage (e.g. after an accident).

Fig. 13

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33

OPERATOR’S MANUAL EC 350 Using the Sunshade

2796934

The sunshade is fitted to a holder above the windscreen.

It can be pulled in front of the windscreen (Fig. 15) or the roof window (Fig. 16).

Rolling out the Sunshade • Take the end strip, roll out the sunshade against the spring work and hang it into the holders right and left the window (arrows, Figs.

15 and 16).

Rolling up the Sunshade

Fig. 15

• Take the end strip, unhang the sunshade from its holders and allow it to slowly roll up by the spring work. Do not abruptly release the unrolled sunshade for it could get damaged.

Fig. 16

34

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OPERATOR’S MANUAL EC 350 Cab interior lamp - switching on and2800862 off The interior lamp is switched on and off with the switch (Fig. 17).

Important: The lamp can be switched on even if the keyswitch for the electrical system is in OFF position and the key is withdrawn.

If the light is left on inadvertently for a longer period (e.g. a weekend), the batteries may be discharged.

So always check that the interior lamp is switched off before leaving the machine.

Fig. 17

Socket outlet in cab 2904422

A socket outlet is installed in the panelling on the left behind the operator’s seat (Fig. 18).

This provides the output voltage of the voltage transformer (12V) for connection of the cool-box (option). Other electrical consumers can also be connected as long as the maximum output of the voltage transformer is not exceeded.

Important: The voltage transformer installed at the factory is designed so as to supply not only a cassette radio but also the cool-box (option); the maximum output is 90 W. In the event of overloading, the temperature of the transformer increases and causes the built-in overload protection to switch off leaving the connected appliance without current. In this case, pull the plug out of the socket (Fig. 18). After 5 10 minutes, the overload protection has cooled down and switches the transformer back into the circuit. If the overload condition persists, the thermal overload shut-off does not work anymore and the fuse in the electrical supply cable blows. To replace it, the panelling below the radio must be removed.

The socket is still live when the key-switch for the electrical system is in OFF position and the key is withdrawn.

If a connected consumer is left on inadvertently for a longer period (e.g. a weekend), the batteries may be discharged.

So always check that the connected consumer is switched off before leaving the machine.

Fig. 18

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35

OPERATOR’S MANUAL EC 350 MONITORING-, WARNING- AND CONTROL ELEMENTS

2801343

The tables on the following pages inform you about the functions of - the control panel, - the supplementary control panel and - all control elements.

More information on the different functions can be found in other chapters of these operating instructions.

If you want to find information on a specific subject please refer to the table of contents and the index.

Fig. 2

Description of control panel The control panel is subdivided into four functional groups of elements: - the multi-functional display (A, Fig. 1), - indicator and warning lamps (B), - the keyboard (C) and - the supplementary control panel (D, Fig. 2).

The control panel layout is identical for excavators of the wheel-mounted and crawler-trackmounted excavators. For this reason, functions and elements required for wheel-mounted excavators are not used for crawler-track-mounted machines such as, for instance, the steering pressure warning lamp (no. 7).

Some of the keyboard functions are options. They can only be used if the machine is equipped correspondingly and if the function has been validated on the PCS electronic unit board, e.g.: - hydraulic hammer (key 19) - overload warning system (key 29).

Not all of the functions indicated on the control panel are available for each type of machine. If you have questions, please contact your nearest NEW HOLLAND CONSTRUCTION distributor.

The whole control panel is automatically illuminated as soon as the key-switch is turned to position 1 (ignition ON).

Fig. 1

At low winter temperatures (approx. below -20oC / -4oF), the multi-functional display (A, Fig. 1) may be difficult to read or not readable at all. This is not a malfunction but rather a phenomenon due to the liquid crystal technique used.

After a short time of operation, the display can again be read in full contrast.

36

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OPERATOR’S MANUAL EC 350 Control panel operating instructions The keyboard is a membrane-type keyboard with symbols printed on the membrane describing the function of the key below.

2732897

Example (Fig. 3): Key (15), fan

The keys are depressed to activate or de-activate the corresponding functions. The keys are shortstroke tactile touch types telling the operator by a click that the key has been successfully depressed.

Light-emitting diodes (LEDs) are located above the keys under transparent sections of the keyboard membrane to indicate the control state of the key. Depressing the key repeatedly permits to select all possible control states sequentially (see example opposite).

Fig. 3

The keyboard membrane may be damaged by pointed objects.

Use your fingers only to depress the keys.

Never use ball-point pens, pencils, nails or similar pointed objects.

Possible control states: - none of the LEDs lit = fan OFF. - key (15) depressed once: = fan in range 1, LED above 1 on.

- key (15) depressed twice: = fan in range 2, LED above 2 on.

After shutting off the machine (ignition OFF), the last switching state of the keys "Fan" (15), "Hydraulic Hammer" (19), "PCS range" (20), "AutoIdle" (22), "Swing mode" (26), "Gearshift" (27) and "Overload warning system" (29) remain stored and are being displayed when the machine is started next time.

All other activated functions are reset to zero.

The following rule applies to the rocker switches on supplementary control panel (D, Fig. 2): A function is activated when the switch face bearing the function symbol / the description is depressed.

- key (15) depressed three times: = fan in range 3, LED above 3 on.

- Depress key (15) four times: = fan in stage 2, LED above 2 lit up.

- Depress key (15) five times: = fan in stage 1, LED above 1 lit up.

- If the key is depressed again: = fan OFF, LED extinguished.

It is not possible to pass directly into the OFF position from a selected range. This means that if the operator wants to switch off the fan running in range 1 he has to depress the key five times.

The other keys are operated the same way.

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37

OPERATOR’S MANUAL EC 350 Control panel

2904189

Fig. 4

38

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OPERATOR’S MANUAL EC 350 Control panel (Fig. 4) No. Element

Page 1 of 4

Function

1

Bar-graph display

Coolant temperature

indicates the temperature of the coolant: indicator bar in light segment = ok indicator bar in dark segment = working speeds reduced by PCS to lower the engine temperature.

(C = cool - H = hot)

2

Indicator

PCS range

indicates the actual PCS power mode.

HEAVY ECO LIFT

3

Multi-functional display

standard display:

4

Bar-graph display

indicates the fuel reserve. indicator bar in light segment = ok indicator bar in dark segment = refuelling required (F = full - E = empty)

5

Operating-hours meter

- adds up the hours run of the machine.

- Indicates the next service interval (see: "Service (key 16), function") - indicates fault codes (see: "Table of fault codes")

6

Warning lamp

not used on this machine.

7

Warning lamp

not used on this machine.

8

Indicator lamp

not used on this machine.

9

Warning lamp

Engine oil pressure

lit up when the engine oil pressure is too low: shut off engine.

10

Warning lamp

Hydraulic oil temperature

lit up when the hydraulic oil temperature is too high: working speed reduced by PCS to allow the hydraulic oil to cool off.

11

Warning lamp

Overload warning system (Option)

lights up with the activated overload warning system on when the load lifted is too big and the stability of the machine is endangered. In this case, the load must be reduced.

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Fuel reserve

Symbol

time in hours : minutes alternatively: engine revs (RPM = min-1) (see: "Display (key 18), function ")

39

OPERATOR’S MANUAL EC 350 Control panel

Fig. 5

40

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OPERATOR’S MANUAL EC 350 Control panel (Fig. 5) No. Element

Page 2 of 4

Function

12

Warning lamp

13

Indicator lamp

14

Warning lamp

Ait intake system, main filter element

lit up when the filter element is contaminated: clean main filter element.

15

Key

Fan

switches the fan to: OFF, ranges 1, 2, and 3.

16

Key

Service

When the button is pressed, the display (5) shows after how many operating hours the next servicing will be due. For further functions, see: "Service (key 16), function".

17

Key

Buzzer

switches off the acoustic warning (buzzer) of all functions, except the overload warning system.

(LED lit up when the buzzer is off).

The buzzer is automatically re-activated for the next warning.

18

Key

Display mode

selects the following indications of the multi-functional display: - time - engine speed (see: "Display (key 18), function")

19

Key

Hydraulic hammer (Option)

switches the "hydraulic hammer" function on/off.

20

Key

PCS range

PCS (Power Control System) - preselection of the maximum engine speed and hydraulic performance in three steps: H = HEAVY, 100% performance E = ECO, 90% performance L = LIFT, 65% performance

21

Key

Power assist

switches increased hydraulic pressure for the working functions and the travelling drive,engine speed is reduced to the PCS-step LIFT.

22

Key

Auto Idle

switches the automatic speed reduction function on/off.

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Hydraulic oil filter

Symbol

lit up when the return-flow filters in the hydraulic system are contaminated: replace return-flow filter. not used on this machine.

41

OPERATOR’S MANUAL EC 350 Control panel

Fig. 6

42

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OPERATOR’S MANUAL EC 350 Control panel (Fig. 6) No. Element

Page 3 of 4

Function

Symbol

23

Key

not used on this machine.

24

Key

not used on this machine.

25

Key

not used on this machine.

26

Key

Swing mode

LED off = higher swinging performance LED on = normal swinging performance

27

Key

Gear mode

LED off = AUTOMATIC mode LED on = normal gear activated (see: "Altering travelling speed")

28

Key

Superstructure holding brake

LED off =

29

Key

Overload warning system (Option)

LED on =

30

Key

Floodlamp

LED off = LED 1 on = LED 2 on = LED 3 =

31

Key

Automatic wipe/wash

activates the screen washer and the wiper as long as the key is held down.

32

Key

33

Key

34

Indicator lamp

not used on this machine.

35

Indicator lamp

not used on this machine.

36

Indicator lamp

not used on this machine.

37

Warning lamp

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holding brake released, superstructure free to turn LED 1 on = holding brake applied, superstructure braked LED A on = automatic mode, holding brake applied and released automatically overload warning system OFF LED 1 on = overload warning system ON LED 2 on = not used on this machine. floodlamps OFF headlight ON headlight and floodlights ON not used on this machine

not used on this machine.

Screen wiper

Coolant level

LED off = wiper OFF LED J on = intermittent wiping LED 2 on = wiper ON

lit up when the coolant level is too low: shut off engine.

43

OPERATOR’S MANUAL EC 350 Control panel

Fig. 7

44

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OPERATOR’S MANUAL EC 350 Control panel (Fig. 7) No. Element

Page 4 of 4

Function

38

Warning lamp

39

Warning lamp

40

Indicator lamp

Alternator

lit up when the alternator supplies no current.

41

Indicator lamp

Superstructure holding brake

lit up when the superstructure holding brake is applied longer than 10 seconds.

42

Indicator lamp

not used on this machine.

Buzzer (inside the control panel)

sounds acoustic warnings: Interval tone if: - the alternator does not supply power - the return-flow filters of the hydraulic system are contaminated - the temperature of the hydraulik oil is too high - the main filter element of the air intake system is contaminated - during selftest.

Continuous tone when: - the oil pressure in the engine is too low - the temperature of the cooling liquid is too high - the level of the cooling liquid is too low - when the admissible load moment is exceeded (optional overload warning system installed)

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Coolant temperature

Symbol

lit up when the temperature of the coolant is too high: shut off engine. not used on this machine.

45

OPERATOR’S MANUAL EC 350 Supplementary control panel

2904190

Fig. 8

46

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OPERATOR’S MANUAL EC 350 Supplementary control panel (Fig. 8) No. Element

Page 1 of 1

Function

45

Potentiometer

Engine speed control

knob turned counter-clockwise - idling knob turned clockwise - max. engine speed

46

Key-switch

Electrical system

activation and deactivation of the electrical system, starting of the engine, stopping of the engine

47

Rocker switch

Air conditioning system (Option)

symbol side down air conditioning system switched on. symbol side up air conditioning system switched off. (see: "Air conditioning system for excavators")

48

Key

Cold-starting aid

Cold weather starting using starting fluid (see: "Starting the engine with cold-starting aid")

49

Rocker switch

Scrap shears (Option)

switches between hammer - and scrap shears operation symbol side up - hammer operation symbol side down - scrap shears operation

50

Rocker switch with lock

Refuelling system (Option)

switching on the refuelling system set symbol face of rocker switch to middle position, unlock and depress symbol face briefly. (switch returns to middle position after releasing) switching off the refuelling system depress switch face with slide lock.

51

Rocker switch

Floodlight rear (Option)

symbol side down floodlight rear switched on. symbol side up floodlight rear switched off.

52

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Symbol

free for optional equipment.

47

OPERATOR’S MANUAL EC 350 Control elements (SAE-control) (Fig. 9) No. Element

Page 1 of 2

Function

60

Pedal (for optional equipment)

for example: - boom adjusting equipment: extension / retraction of adjusting cylinder - hydraulic hammers: activating the hammer

61

Pedal

Initiates the travelling movement of the left crawler chain: to the front - forwards to the rear - reverse

62

Control panel

63

Pedal

Travel

control and monitoring of machine functions Travel

64

Initiates the travelling movement of the right crawler chain: to the front - forwards to the rear - reverse free for optional equipment.

65

Push-button

Power Boost

Brief working at higher engine speed and higher pressure, (see: "Power Boost, function").

66

Push-button

Horn

acoustic warning signals

67

free for optional equipment.

68

free for optional equipment.

69

Momentarycontact rocker switch

Grab rotation (Option)

pressing down right-hand contact - grab rotation to the right pressing down left-hand contact - grab rotation to the left

70

Control lever

Boom

Press forwards - lower boom Pull back - raise boom

Bucket

Press to right - empty bucket Press to left - fill bucket

Grab

With grab (option): Press to right - open grab Press to left - close grab

71

Supplementary control panel

controlling and monitoring of machine functions

72

Lever

Locking of right-hand console

lever in vertical position - console locked in position lever forwards - console unlocked and free to slide

73

Knob

Heating

heating performance control: fully counter-clockwise - min. heating performance fully clockwise - max. heating performance

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49

OPERATOR’S MANUAL EC 350 Control elements (SAE-control) (Fig. 10) No. Element 74

Socket

75

Lever

Page 2 of 2

Function To connect cool-box (option) and other electrical consumers to 12V supply (see: "Socket outlet in cab").

Locking of left-hand console

76

lever in vertical position - console locked in position lever forwards - console unlocked and free to slide free for optional equipment.

77

Lever

Pilot control

Pull upwards hydraulic servo control OFF. Press downwards hydraulic servo control ON. (see: "Activating the servo control")

78

Control lever

Swing

Press to right superstructure swings clockwise.

Press to left superstructure swings counter-clockwise.

Stick

Press forward extend stick Press back retract stick

79

free for optional equipment

80

Momentarycontact rocker switch

free for optional equipment

81

Push-button

free for optional equipment

82

Push-button

83

Foot rest

see No. 84

84

Travel pedal extensions

permitting sensitive actuation of the travel pedals in combination with the foot rest (no. 83).

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Hydraulic hammer (Option)

activation of hydraulic hammer

51

OPERATOR’S MANUAL EC 350 STARTING UP THE MACHINE 2413786

Prior to starting up the machine each day, do jobs listed in the maintenance schedule T (cf.

Section 3 of these operating instructions "Inspection and Servicing").

Refuelling

2413658

Refuelling, safety instructions

Refuelling

2472072

Explosion hazard No smoking, no use of naked flames! Fuels and fuel gases are inflammable. Fire hazard.

Fuel may damage the skin, so wear protective gloves or use a barrier cream.

Lower the attachment to the ground.

Switch off the engine. Switch off fuel-operated ancillary heating systems and air conditioning systems.

Avoid spilling fuel and allowing it to seep into the ground: environmental hazard!

Soak up any overflowing fuel immediately with cloths or binding agents. Then dispose of these correctly to avoid pollution.

Fig. 1

• Unscrew cap of filler neck (Fig. 1).

• Fill in fuel through the filter screen in the filler neck. Do not remove screen.

Report any accidents involving fuels to the user or his authorized agent without delay.

52

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OPERATOR’S MANUAL EC 350 Switching the electrical system on and off

Fig. 2

2904022

Fig. 3

• Switch the battery main switch to position ON. (The battery main switch is installed in the battery compartment beside the batteries.)

The key-switch (46, Fig. 2) is used to switch the following functions: 0 = All electrical consumers except the interior light, socket outlet in cab and illuminating systems are without voltage, engine off.

I = Electrical system ON. If the immobilizer is active, the system now requests entering of the code (see: "Immobilizer, entering the code").

If the immobilizer is not active, the electronics will perform a self-test.

All monitoring and warning lamps will light up for a few seconds and the buzzer sounds briefly.

Then, warning lamps (9 and 40, Fig. 3) will light up and the buzzer will sound again.

All indicators will be shown on the display.

The following functions are now activated by the electronics: - The PCS is switched to the mode that was active during the preceding engine shut-off.

- Superstructure holding brake in AUTOMATIC mode.

II = Start the engine. All warning and pilot lamps must cease when the engine is running.

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53

OPERATOR’S MANUAL EC 350 Immobilizer, entering the code This machine is equipped with an electronic immobilizer system preventing the machine from being put into operation by unauthorized persons.

The immobilizer function is not enabled when the machine is delivered ex factory. On request of the customer, it can, however, be activated by the service mechanic when the machine is handed over.

When the electrical system is switched on by turning the key-operated switch, the electronic central unit requests entering of a code (Fig. 4).

The engine can be started up only after the code has been entered correctly.

During the work, the immobilizer can be deactivated (see also: "Immobilizer, deactivating / activating").

2904030

Fig. 4

Entering the code (f. ex. "5"): • Turn keyswitch to I. • Depress key (24, Fig. 5) five times: the display (A) moves on by one unit after each depression of the key.

• Depress key (25) five times: the display (A) moves back by one unit after each depression of the key.

The start inhibit function is now cancelled. The machine can be put into operation.

• After an incorrect entry, the procedure can be interrupted and restarted by setting the keyswitch to "0" and by repeating the procedure from the beginning. (cf. "Immobilizer, deactivating / activating").

Fig. 5

N.B.: The code preset at the factory can be changed.

This requires, however, a specially equipped tester.

Contact your NEW HOLLAND CONSTRUCTION dealer if you want to have the code changed.

The new code must be entered as described above.

Make sure the information on the new codes is not accessible to unauthorized persons.

You can thus be sure that your machine can only be put into operation by duly authorized persons.

54

73179391

OPERATOR’S MANUAL EC 350 Starting and stopping the engine

2904423

Starting the engine

Engine exhaust can endanger health.

Start the engine only outdoors or in premises equipped with an exhaust removal system.

Fig. 7

Fig. 6

• Turn engine speed potentiometer (45, Fig. 6) to the left. During starting, the amount of fuel injected is automatically increased.

• Turn the key in key-switch (46) to position I. Wait until the buzzer sounds a second time and all indicators are fully visible on the display. (The self-test of the central electronic unit is then terminated).

• Turn key in key-switch (46) to position II. The engine starts.

If the warning lights fail to go out when the engine is running, the engine may suffer substantial damage. Stop the engine immediately.

Locate cause of fault and rectify. Only then may the engine be started up again.

If the engine is cold, a warm-up phase now starts automatically. During this time, "WARMUP" is displayed alternately with the set PCS power stage. The engine speed corresponds to the programmed speed for the PCS power stage LIFT. After the WARMUP phase, the engine is brought to the speed set on the engine speed potentiometer (45, Fig. 6). If the potentiometer is at the right limit stop, the engine is brought to the speed programmed for the selected PCS power stage.

• Release key. Key goes back to position I. Warning lamps for engine oil pressure (9) and charge monitor (40) go out.

If the engine doesn’t easily starts at temperatures below 0˚C (32˚F) try to start it using the cold-starting aid (see: "Starting the engine with cold-starting aid").

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Do not allow the engine to operate for too long at idling speed.

Excessive idling periods (over 10 minutes) can cause damage to the engine.

If the coolant temperature is too low, the fuel flushes the lubricating oil from the cylinder walls and dilutes the engine oil in the crankcase. This leads to insufficient lubrication of moving parts of the engine.

55

OPERATOR’S MANUAL EC 350 Starting the engine with cold-starting aid

2904424

The engine is equipped with a cold-starting aid.

The starter fluid contains ether and is therefore harmful to health.

It is also extremely flammable.

Incorrect use can lead to explosions and uncontrolled combustion.

Therefore: - do not breathe in fumes - do not use additional starting devices, such as preheaters, glow plugs, flame devices or other electrical starting aids - avoid the vicinity of naked flames.

Fig. 8

The cold-starting aid is only active while starting the engine.

It is automatically switched off when the engine stands still and when the engine is running.

• Turn potentiometer (45, Fig. 8) as far as possible to the left (idling position).

• Turn key in key switch (46) to position I. Wait until the buzzer sounds a second time and the indicators on the display are fully visible. (The self-test of the central electronic unit is then terminated).

Fig. 9

• Turn the key to position II and depress "coldstarting aid" button (48, Fig. 9) two to three times. Each press of the button injects approx.

1,5 cm3 of starting liquid ito the air intake line of the engine.

• The engine starts.

• Release key, it returns to position I.

Excessive use of starter fluid leads to inadmissibly high pressure in the cylinders and can cause the engine to race.

Further information on starting at low outside temperatures or after engine malfunctions can be found in the "Engine operating and maintenance instructions".

56

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OPERATOR’S MANUAL EC 350 Engine does not start

2732246

If the engine does not start, return the key switch (46, Fig. 10) to position 0 (mechanical start-repeating lock). Only restart after completing this procedure.

Starting without interruption should not be performed for longer than 30 seconds. Allow a break of two minutes between starting procedures.

Use the fault table to determine and rectify (have rectified) the cause of the malfunction.

For more information see: "Engine operation and maintenance instructions".

Shutting off the engine

2732249

Never shut off the engine out of full load, but continue running for ca. three - five minutes at idling speed to cool down.

• Set working equipment down on the ground.

• Turn speed-change potentiometer (45, Fig. 10) clockwise to the limit stop.

The engine is brought to idling speed.

• Switch key-switch (46) to 0. The engine is shut off and is stationary.

• Withdraw the key from the key-switch (46).

Fig. 10

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57

OPERATOR’S MANUAL EC 350 Ventilation and heating

2716622

Ventilation (fresh air)

Heating

Fig. 11

Fig. 13

While the engine is running:

The heat exchanger of the heating system is heated by the cooling liquid of the engine flowing through it. Therefore, the heating power is also dependent on engine temperature. The full heating power can only be obtained when the engine has reached its operating temperature.

• Turn heating control knob (73, Fig. 11) to "min" (heating performance = 0).

(If the engine is not running, switch key in key-switch (46, Fig. 10) to position I. This is necessary to activate the fan).

• Select the desired fan speed with key (15, Fig. 12) (ranges 1 - 3).

2800853

Even if the heating is not used for prolonged times, it must be switched on once a week for abt. 5 minutes to mix the cooling liquid in the engine and in the heating system.

(When auxiliary heating system (option) is installed, cf.: "Activating the auxiliary heating system").

(When air condition system (option) is installed, cf.: "Air conditioning systems for excavators").

Adjusting the heating performance 2472788

Fig. 12

• Turn knob (73, Fig. 11) clockwise to increase the desired amount of heat.

• Depending on the amount of warm air desired, switch the fan with key (15, Fig. 12) into stages 1 to 3.

• The slats of the outlet nozzles (Fig. 13, 14 and 15) are variable. The air flow can be directed to the side and up and down.

58

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OPERATOR’S MANUAL EC 350 Defrosting the front and rear screens 2796936

Switching the windscreen wiper / washer on and off

2461482

To activate intermittent wiping Screens that are steamed or iced up obstruct the operator’s view of the hazard zone.

• depress key (33, Fig. 16) once. LED J lights up.

Never move the machine until the screens are defrosted and the hazard zone can be clearly seen.

To activate permanent wiping • depress key (33) twice. LED 1 lights up.

• Start up the engine. Full heating output is attained only when the engine is at operating temperature.

To de-activate the wiper

• Close the air-flow vents under the operator’s seat.

• depress key (33) until the LEDs are no longer lit up.

• Open the two air-flow vents for the front screens (Fig. 14) as wide as possible and direct onto the front screens.

To activate the wipe / wash function

• Open the air-flow vents to the right and left of the rear screen (Fig. 15) as wide as possible and direct onto the rear screen.

• Set heating output to max..

- depress key (31). LED I lights up.

The washer pump starts up and the wiper begins to move at the same time.

After releasing the key, the wiper continues for a short time to perform wiping movements.

• Switch blower to stage 3.

Fig. 14

Fig. 16

Fig. 15

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59

OPERATOR’S MANUAL EC 350 DRIVING Driving - Safety instructions

2800884

Before driving the machine

Contact with overhead power lines

Clean off any earth, mud, snow, ice, grease and oil ahering to your working footwear before operating the machine.

There is otherwise a risk of slipping off the pedals and steps and initiating inadvertent movements.

Raise the working equipment attached only so far as to permit the machine to be driven under overhead power lines without any risk.

Adjust the driver’s seat and the mirrors before driving.

Close the front window and the cab door.

If the machine is fitted with a safety belt for the operator, fasten the belt.

Warn persons in the immediate vicinity by sounding the horn before setting off.

If a power line has been contacted, drive the machine out of the hazard zone or lower the working equipment.

If this is not possible: - Do not leave the driver’s cab.

- Inform persons outside to keep away from the machine and to take the necessary steps to have the power line shut off.

Do not allow other persons to accompany you when you are driving.

Observing the position of the working equipment If you drive the excavator with the working equipment stretched out or with the superstructure swung in a direction other than the sense of driving, the stability of the machine may be at risk. This is the case especially when the bucket is filled or when a load is attached to the lifting hook.

It is therefore essential to keep the working equipment as close as possible to the machine and to swing the superstructure in the sense of driving before setting off.

Driving on slopes Never drive across slopes.

Reversing During reversing operations the driver’s view of the hazard zone is restricted. He should therefore have experienced marshallers to assist him. Agree with the marshaller on the signals to be used in order to make sure that you understand the signals perfectly well.

During reversing the acoustic Travel Alarm is automatically switched on.

Parking the machine Machines parked on sloping ground are subject to uncontrolled movements.

The machine must therefore be parked only on level and horizontal surfaces.

Do not turn on sloping terrain to prevent sliding or tilting of the machine.

Take the utmost care on slippery, greasy ground.

Ensure that the track chains have adequate grip; only then are the steering and braking properties of the machine assured.

60

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OPERATOR’S MANUAL EC 350 Fastening the retaining belt 2904035

Information on the engine At low temperatures, the engine starts up with the "WARMUP" phase.

Only when this phase is completed may the engine be fully loaded.

Select correct shoes Never use a wide shoe and marsh type shoe for rough ground (which involve rocks, sand and gravel, pebbles etc.), as they are designed for soft and weak ground.

Using theses shoes on rough ground will cause bending and loosening of the shoes, and may damage other undercarriage components (links and rollers).

Driving over longer distances Before driving the machine over longer distances: - lift working equipment, but only so far that obstacles on or above the ground are avoided.

- bring the machine to basic position and - set superstructure holding brake to AUTOMATIC. The machine is now operated in its basic position.

When travelling over longer distances, the machine should always be driven forwards. Travelling over longer distances by reversing leads to increased wear of track bushings and sprocket wheel.

Check the belt and its fasteners regularly.

If the belt or its fasteners are damaged or if parts are missing, have them repaired or replaced immediately.

Belts damaged or overstrained in an accident must be replaced.

The inlet opening of the belt lock must not be obstructed, for instance, by paper, since the locking tongue will otherwise not engage in the lock.

Do not run the belt over solid or fragile objects such as bunches of keys or spectacles to prevent injuries to the body in the event of an accident.

The driver’s seat is equipped with a lap belt (Fig. 1).

Always put on the retaining belt before setting off.

Attaching the retaining belt • Introduce the locking tongue (1, Fig. 1) into the belt lock (2). Check for proper locking by pulling the belt at the locking tongue.

• Adjust the length of the belt so that it runs flat and firm over the body. The belt must not be jamming or twisted.

Detaching the retaining belt • Lift the flap of the belt lock (2) and pull out the locking tongue (1).

Driving uphill and downhill When driving uphill or downhill the track drives must always be at the rear, seen in driving direction.

Always use max. engine speed when driving uphill.

When driving downhill the travel brake valves prevent the machine from reaching an excessive speed.

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Fig. 1

61

OPERATOR’S MANUAL EC 350 Bringing the machine to basic 2801583 position

Selecting direction of travel

2801584

The machine starts moving when the travel pedals (61, 63, Fig. 3) are operated.

Read and observe: "Travelling - Safety instructions".

Fig. 3

The drive pedals can be operated: - with the feet, or Fig. 1

The machine is in basic position when the cab (2, Fig. 1) is positioned above the lefthand front idler (1).

It is only in this basic position that selected and actual direction of travel are coordinated.

- by hand if the travel levers (arrows, Fig. 3) have been inserted.

Travelling movements can be initiated sensitively if: - the heels are placed on the foot-rests (83) and if the pedal extensions (84) are depressed with the toes - if the travelling pedals are actuated with travelling levers.

The information on direction of travel assumes that the machine is in basic position.

• Direction of travel forwards: Travel pedals in direction of front idler (1, Fig. 1) = movement in direction of front idler • Direction of travel reverse: Travel pedals in direction of travel gear unit (3) = movement in direction of travel gear unit.

Fig. 2

If the superstructure is swivelled more than 90˚ from basic position (Fig. 2), the machine travels counter to the selected direction.

If the position of the superstructure in relation to the undercarriage is not exactly known, tap the accelerator lightly to see in which direction the machine moves. Only then should the travelling movement be initiated.

62

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OPERATOR’S MANUAL EC 350 Braking and stopping

2472326

Braking travelling movement

Altering travelling speed

2904401

- Deflect travel pedals (61, 63, Fig. 4) or - Adjust engine speed using potentiometer (45).

The machine brakes the travelling movement and stops as soon as the travel pedals are released.

The travel pedals return to the middle position automatically.

Parking brake / travel The multi-disc brakes in the travel gear units operate as parking brakes.

They are actuated automatically when the machine is at a standstill. When the travelling movement starts they are released automatically.

High engine speed or increased deflection of drive pedals causes higher travelling speed.

Gear mode The travel motors can be switched into two different modes of operation.

AUTOMATIC-mode: Depress key (27, Fig. 5) on the control panel until the LED does not lit.

The gear automatically switches the stage (normal gear/fast gear) depending on the driving situation (uphill/downhill; driving a close curve).

The machine reaches a travelling speed of approx. 5 km/h (3.1 mph).

Normal gear: Depress key (27) once, LED I lights up.

The travel motors are running with normal speed.

Fig. 4

Fig. 5

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63

OPERATOR’S MANUAL EC 350 Drive - forward / reverse

2732898

Travel forwards straight ahead

Read and observe "Driving - Safety instructions".

While travelling the horn attached in the engine compartment sounds acoustic warnings (TravelAlarm).

In the following figures: Deflection of travel pedals in direction of arrows = travelling movement in direction of arrows.

Fig. 6

The information on direction of travel applies only if the machine is in basic position.

Operate travel pedals in direction of arrows = machine travels in direction of arrows.

Small pedal travel = low speed.

Large pedal travel = high speed.

Travel reverse straight ahead

Fig. 7

Operate travel pedals in direction of arrows = machine travels in direction of arrows.

Small pedal travel = low speed.

Large pedal travel = high speed.

64

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OPERATOR’S MANUAL EC 350 Travel forward to right

Travel forward to left

Fig. 8

Fig. 10

Operate travel pedal in direction of arrow = machine travels in direction of arrow.

Operate travel pedal in direction of arrow = machine travels in direction of arrow.

Small pedal travel = low speed.

Small pedal travel = low speed.

Large pedal travel = high speed.

Large pedal travel = high speed.

Travel reverse to right

Travel reverse to left

Fig. 9

Fig. 11

Operate travel pedal in direction of arrow = machine travels in direction of arrow.

Operate travel pedal in direction of arrow = machine travels in direction of arrow.

Small pedal travel = low speed.

Small pedal travel = low speed.

Large pedal travel = high speed.

Large pedal travel = high speed.

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65

OPERATOR’S MANUAL EC 350 Turning on the spot

Turn to left

Read and observe "Driving - Safety instructions".

Do not turn on an unstable surface.

Accumulated material between crawler chains and crawler unit members can cause the chains to jump off.

Do not turn on a rough rocky surface.

This would cause excessive wear to the chains.

While turning the horn attached in the engine compartment sounds acoustic warnings (TravelAlarm).

Fig. 12

Operate travel pedals in direction of arrows = machine turns in direction of arrows.

Small pedal travel = low speed.

Large pedal travel = high speed.

In the following figures: Deflection of travel pedals in direction of arrows = travelling movement in direction of arrows.

The information on direction of travel applies only if the machine is in basic position.

Turn to right

Fig. 13

Operate travel pedals in direction of arrows = machine turns in direction of arrows.

Small pedal travel = low speed.

Large pedal travel = high speed.

66

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OPERATOR’S MANUAL EC 350 Travel with loading on the hook

Travel after PCS failure

2904192

Read and observe "Driving - Safety instructions" and "Lifting-gear operation - safety instructions".

• Swing load in direction of travel.

• Keep load close to ground and close to the machine.

• Actuate superstructure holding brake.

• Travel slowly and carefully.

Move the working equipment with special caution when the machine is being driven as the travelling speed is nearly halved in these conditions.

Braking of the machine may cause the load to start swinging.

Move the working equipment preferably with the boom cylinders since the reduction of the travelling speed is smallest in this case.

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2732724

Read and observe "Driving - Safety instructions".

If the engine speed is reduced suddenly (choking) or the engine stalls, during working or travel operation, a malfunction may have occurred in the PCS electronics (module load limit regulator).

In case of PCS malfunctions, the display shows a fault code (see "Fault codes, table").

The measures to be taken in case of PCS failure (module load limit regulator) are described in the section "Working operation in case of PCS failure".

After travel operation

2486236

If machine operation is to be ended, proceed according to section "Shutting off the machine".

67

OPERATOR’S MANUAL EC 350 Transporting the machine

2801558

Transport - Safety instructions Before transport on public roads apply for transport authorization from responsible authorities.

Load and transport the machine only if all safety regulations are fulfilled.

Loading and transportation of the machine should be arranged with a firm experienced in the transportation of heavy goods.

The transportation company or its representative is responsible for the loading and transportation of the machine.

Before rail transport, loading and transport of the excavator must be coordinated with and authorized by the responsible railway authority.

The equipment must be partially or fully dismantled, according to the dimensions of the flat-bed trailer or waggon. For dimensions and information on weight for loading see "Technical data".

The access ramps and loading area of the transportation vehicle and the travelling mechanism of the machine should be cleared of oil, grease, earth, loam, snow, ice and other substances in order to minimize the risk of slipping.

Secure the transportation vehicle against inadvertent movements.

Use tie-down material of sufficient strength (for information on weight of machine see "Technical data").

68

Fig. 14

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OPERATOR’S MANUAL EC 350

Fig. 15

Fig. 16

Drive machine carefully onto transportation vehicle.

Use assistance from marshallers.

Secure the machine against unintentional movements (Fig. 15): - Set working equipment down on the loading area of the transportation vehicle.

- Switch off pilot control; to do so bring lever (77, Fig. 14) to position 0.

Left console swings upwards.

- Shut off engine.

The superstructure holding brake is activated automatically.

Fig. 17

- Remove key from the key switch.

- Switch battery main switch to position OFF and withdraw the switch lever.

- Lock doors and windows.

- Place chocks in front of crawler chains.

- Tie the machine down securely. Position tiedown chains or ropes over the crawler unit members. The correct positions are marked (Fig. 16) - Use the lugs at the cross member for tying down (Fig. 17).

Do not place tie-down chains or ropes over hydraulic lines.

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OPERATOR’S MANUAL EC 350 WORKING OPERATION Working operation - Safety instructions

Before starting work Read and observe the sections "Fundamental safety instructions" and "Operation - Safety instructions" Inspect the site for underground gas, power and water lines before starting work.

Any damage to such lines is a risk to life.

Clean off any earth, mud, snow, ice, grease and oil adhering to your working footwear before operating the machine.

There is otherwise a risk of slipping off the pedals and steps and initiating inadvertent movements.

2732893

Contact with overhead power lines Make sure the clearance between working equipment and overhead power lines and other structures is sufficient.

If a power line has been contacted, drive the machine out of the hazard zone or lower the working equipment. If this is not possible: - Do not leave the driver’s cab - Inform persons outside the hazard zone to keep away from the machine and to take the necessary steps to have the power line shut off.

Warn persons in the immediate vicinity by sounding the horn before starting work.

Work with the machine only in its basic position and when it is standing on level and - if possible - horizontal ground.

Notes on engine operation

Persons in the machine’s hazard range

At low temperatures, the engine starts with the warm-up cycle. After that activate all hydraulic functions for abt. 10 minutes (bring to service temperature). For further instructions, see section "Lubricants".

Lower the working equipment and shut off the engine as soon as the warning lamps for engine operation or filter monitoring light up with the hydraulic oil being at service temperature.

Stop work if anyone is in the hazard range of the machine.

Select correct shoes

There is otherwise a risk of affecting the machine’s working stability.

Bear the load capacity of the machine in mind (cf. "Technical data").

Make sure such persons have left the hazard range before resuming work.

Trenches and building pits Trenches and building pits may give way.

Keep well clear of them.

70

Never use a wide shoe and marsh type shoe for rough ground (which involve rocks, sand and gravel, pebbles etc.), as they are designed for soft and weak ground. Using theses shoes on rough ground will cause bending and loosening of the shoes, and may damage other undercarriage components (links and rollers).

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OPERATOR’S MANUAL EC 350 Extreme positioning of working equipment - Instructions

Before beginning work 2411342

Parts of the working equipment may damage the machine if moved into extreme positions (see illustration).

Work with due care and attention, avoiding such extreme positions.

Fig. 1

2472205

Read and observe the section "Working operation - Safety instructions".

Before daily operation carry out all works in accordance with servicing plan T (cf. "Inspection and servicing").

Fig. 2

• Sit down on the driver’s seat.

• Start the engine as described.

Set the speed of the warm engine with potentiometer (45, Fig. 2) to the maximum number of revolutions.

Depending on the type of work executed, the speed may also be reduced.

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OPERATOR’S MANUAL EC 350 Switching on floodlamps

2904191

Switching on the floodlamps The floodlamp on the boom is supplied with power via the plug and the external socket outlet (Fig. 3) at the righthand wall of the cab.

• Press button (30, Fig. 4) once; LED 1 lights up.

The headlight is switched on.

• Press button (30) twice; LEDs 1 and 2 light up.

The headlight, the floodlamps on the working equipment and the supplementary floodlamps (option) are switched on.

The function for LED 3 is not assigned in this machine.

Fig. 3

Switching off floodlamps • Press button (30) until LEDs are no longer lit up; the floodlamps are switched off.

Fig. 4

72

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OPERATOR’S MANUAL EC 350 Automatic speed reduction

2801398

The automatic speed reduction must not be activated for lifting operations and during driving.

The automatic speed reduction function might cause a sudden and unexpected drop of performance.

The automatic speed reduction function (Auto Idle) has two stages: First stage: Under no-load working conditions, the engine speed is reduced automatically (by ca. 100 - 200 rpm depending on the PCS range selected).

Fig. 5

Second stage: The engine is set to idling speed if no working movements are being performed with the working equipment for more than four seconds.

This reduces the fuel consumption and the noise and exhaust gases emitted.

(This period, which is set at the factory, can be changed. However, this requires a specially equipped test unit.

So consult your local NEW HOLLAND CONSTRUCTION dealer if the period is to be changed).

If the operator initiates a hydraulic function, the engine returns to the original speed.

The switch position of this function (ON / OFF) is stored when the engine is shut off.

Switching off the automatic speed reduction • Depress key (22, Fig. 5). The LED is extinguished.

Switching on the automatic speed reduction • Depress key (22). LED I is lit up.

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OPERATOR’S MANUAL EC 350 Selecting the PCS output stage

Activating the pilot control 2732725

• Select output stage with button (20, Fig. 6): LED above H (HEAVY) lights up = 100 % maximum motor speed and pump output.

LED above E (ECONOMIC) lights up = 90 % reduced motor speed and pump output for work in the economic range of the motor. Slightly lower working speed.

2796940

• Move lever (77, Fig. 7) to position I, while pressing the left control console down until it engages in the lower position.

The hydraulic pilot control is then activated; the control levers (70 and 78, Fig. 8) and pedals (60, 61 and 63) are fully functional.

LED above L (LIFT) lights up = 65 % further reduced motor speed and pump output for exceptionally sensitive operations, e.g. for operations with lifting gear.

The set power stage is shown in addition in the display.

The standard setting after machine start-up is power stage E (ECONOMIC).

(Exception: warming-up phase) The PCS controls the hydraulic pumps depending on the required output.

Fig. 7

Fig. 6

74

Fig. 8

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OPERATOR’S MANUAL EC 350 Switching off the pilot control

2796969

• Set lever (77, Fig. 9) to position 0. The lefthand control console swings upwards and the hydraulic pilot control is off.

Before leaving the driver’s seat set lever (77, Fig. 9) to position "0" to prevent working functions, such as swinging of the superstructure, from being inadvertently activated by touching one of the control levers or pedals.

Fig. 9

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75

OPERATOR’S MANUAL EC 350 Superstructure swinging and braking

2801350

Superstructure swinging

Superstructure braking

• Switch superstructure holding brake into automatic operation by depressing key (28, Fig. 10) until LED A is lit up (This mode is activated automatically when the engine is started; cf. also "Applying / releasing the superstructure holding brake").

The superstructure swing motion is braked when swing control lever (78, Fig. 11) returns to position 0.

The braking delay is determined by adjustable swing brake valves. The time between swing control lever release and superstructure standstill can thus be adapted to individual requirements.

Consult your local NEW HOLLAND CONSTRUCTION dealer.

The braking action is reinforced by countering (i.e. by pressing the slewing control lever in the opposite direction).

Superstructure holding brake - function 2800866 Fig. 10

• Activate pilot control with lever (77, Fig. 11).

Swing superstructure to right - Push control lever (78) to right.

Swing superstructure to left - Push control lever (78) to left The further the control lever is deflected to the right or left, the higher the swing speed.

A multi-disc brake is fitted in the swing gear. It is applied by spring pressure and released by hydraulic pilot control pressure.

The holding brake is not applied until the control lever "swing" is returned to its neutral position and the swing movement of the superstructure has been completed. Therefore it cannot be used to brake the swing movement.

With the keyswitch in the OFF position, the engine stationary or in case of machine voltage failure, the superstructure holding brake is applied. and the superstructure is braked.

Fig. 11

Fig. 12

76

73179391

OPERATOR’S MANUAL EC 350 Applying the superstructure holding 2732896 brake

Releasing the superstructure holding brake

The superstructure holding brake can be used in three modes of operation:

• Depress key (28, Fig. 13) until the LEDs above the key are extinguished. The holding brake is released and the superstructure is free to swing.

In the "Automatic" mode of operation with LED A lit up, the holding brake is released as soon as the swing control lever is deflected.

This mode is activated automatically when the engine is started.

Fig. 13

• Key (28, Fig. 13) not depressed, LEDs extinguished: holding brake released, superstructure free to swing.

• Key (28) depressed once, LED I lit up: holding brake applied, superstructure braked.

Indicator lamp (41, Fig. 14) lights up.

• Key (28, Fig. 13) depressed twice, LED A lit up: automatic mode, the holding brake is being applied automatically when the superstructure is stationary and released when a swing movement is initiated. This mode is activated automatically when the engine is started.

Indicator lamp (41, Fig. 14) lights up if the superstructure holding brake is applied for more than 10 seconds.

Fig. 14

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77

OPERATOR’S MANUAL EC 350 Swing; changing the mode of operation

2800880

The swing drive can be switched into two different modes of operation with key (26, Fig. 15).

Changing the mode of operation effects to the function "raising boom".

- LED I above key (26) lit up = Normal hydraulic power for swing movements.

At the same time, more hydraulic power is available for the function "raising boom".

This mode of operation should be chosen whenever the work performed requires only a limited number of swing movements.

- LED I off = Higher hydraulic power is available for swing movements.

The functions of the working equipment are not influenced.

78

Fig. 15

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OPERATOR’S MANUAL EC 350 Superstructure holding brake - emergency operation

2904409

The superstructure may be swung freely if the superstructure holding brake is released using emergency operation!

Then the superstructure is not braked automatically after a swing movement.

When working on a slope or if the machine is in a sloping position the superstructure can continue swing independently if the swing movement is not countered.

To avoid dangerous situations, emergency operation should only be used in exceptional circumstances.

Fig. 16

Rectify superstructure holding brake malfunctions immediately (or have them rectified).

The pilot control pressure to release the superstructure holding brake is controlled by a solenoid valve.

If a malfunction occurs at the solenoid valve the superstructure holding brake can be released using emergency operation.

The solenoid valve is attached in the frame behind the driver’s cab (Fig. 16).

• Turn grub screw (Fig. 16) fully down using an Allan key size SW 3. The superstructure holding brake is released, the superstructure swings freely.

• Rectify solenoid valve malfunctions immediately (or have them rectified).

• Turn grub screw completely back out when the fault has been rectified.

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79

OPERATOR’S MANUAL EC 350 Working with backhoe or grab equipment (SAE-control)

2732214

Fig. 17

80

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OPERATOR’S MANUAL EC 350 Swing superstructure • Swing superstructure to left

Before start working Read and observe: "Working operation Safety instructions".

- Push control lever (78) to the left.

• Swing superstructure to right - Push control lever (78) to the right.

Persons in the machine’s hazard range Stop work if anyone is in the hazard range of the machine.

Make sure such persons have left the hazard range before resuming work.

Filling and emptying backhoe • Fill backhoe - Push control lever (70) to left.

• Empty backhoe - Push control lever (70) to right.

Opening and closing grab When carrying out levelling work the equipment must be used in the digging direction only.

Never "sweep or hammer" with the excavating device (e.g. during demolition work).

The working equipment is not constructed to withstand strong lateral forces. It would be damaged.

(optional equipment) • Open grab - Push control lever (70) to right.

• Close grab - Push control lever (70) to left.

Rotating grab (optional equipment)

All control levers for working operation return automatically to 0 position on being released.

Activate pilot control with lever (77, Fig. 17).

• Rotate grab to the right - Press rocker switch (69) in control lever (70) to the right.

• Rotate grab to the left

Raising and lowering boom • Raise boom

- Press rocker switch (69) in control lever (78) to the left.

- Pull control lever (70, Fig. 17) to rear.

• Lower boom - Push control lever (70) forwards.

Activate the Power assist function • Depress key (21) in the control panel. (cf. "Power assist, function").

Extending and retracting stick • Extend stick - Push control lever (78) forwards.

• Retract stick - Pull control lever (78) to rear

Activate the Power Boost function • Depress key (65) in the control lever (70). (cf. "Power Boost, function").

Activate the horn • Depress key (66) in the control lever (70).

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81

OPERATOR’S MANUAL EC 350 Power assist, function

2800299

Activation of the power assist increases the hydraulic pressure for the working functions and the travel drive.

The engine runs at the speed programmed for the PCS power stage LIFT. This means increased - lifting force, - tearing force, - breaking force, - traction force and - more sensible control operation Fig. 18

at reduced working speed. (see: "Technical data").

Switching the power assist on • depress key (21, Fig. 18) once, LED I lit up.

Switching the power assist off • depress key (21) a second time, the LED is extinguished.

82

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OPERATOR’S MANUAL EC 350 Power Boost, function

2800298

Do not switch on the "Power Boost" function for lifting and driving operations.

Risk of unexpected and sudden losses of power.

Activation of the "Power Boost" function increases the engine speed and hydraulic pressure (PCS power stage HEAVY). This function can be used if maximum power and speed and required briefly for a working movement (e.g. increased breakaway force). The activation time is limited to ca. 8 seconds.

Fig. 19

This function is only active - if the ECO or HEAVY modes are selected and - if the ON time has not been exceeded.

Switching the Power Boost function on • Depress key (65, Fig. 19).

The increased hydraulic power is available for a period of approximately 8 seconds. Thereafter the PCS switches back to the economic range.

To use the function once again, release key (65) and press again.

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83

OPERATOR’S MANUAL EC 350 Operating methods

2732741

Read and observe the section: "Working operation - Safety instructions".

• Use arm pull action often. When digging, use the arm pulling force and operate the bucket using shallow teeth cuts.

Deep teeth cuts will decrease efficiency (Fig. 1).

• Point the bucket teeth in the direction of digging. This will decrease digging resistance and possible damage to the teeth (Fig. 3).

Fig. 1

Fig. 3

• Operate boom smoothly. When moving the boom up and down, begin and end the operation very slowly and smoothly. When the boom is stopped suddenly, strong shocks are exerted upon the machine body, causing excessive wear and possible damage (Fig. 2).

• Maximum digging force is obtained with 90˚ ~110˚ angles. When maximum digging force is needed, dig earth slowly having the boom and the arm at nearly 90˚ ~110˚ (Fig. 4).

Fig. 2

Fig. 4

84

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OPERATOR’S MANUAL EC 350 • How to shake off sand and soil on the bucket.

Push the arm to near level position and bring the bucket to a dumping position. If sand and soil do not fall out, move the bucket lever back and forth a few times. Avoid shaking out soil using shocks at the end of the bucket cylinder stroke (Fig. 5).

Fig. 7

• Land leveling work. For back filling and leveling work after digging, move the bucket back and forth horizontally (Fig. 7).

Fig. 5

• Stop swing motion early. To stop swing action, release the swing lever before you get to your final point of digging or dumping (Fig. 6).

Do not push and pull earth by the bucket like a bulldozer, while the machine is leveling earth, off.

In leveling ground toward yourself, pull the arm gently, lift the boom a little and when the arm has passed the vertical point, lower the boom gently and manipulate the machine so the bucket moves horizontally.

For leveling ground away from yourself, reverse the steps described above.

In the above operation, bucket motion may be used together. By controlling the action of the boom work lever, you can dig a slope like slope facing operation.

Never travel with attachment touching the ground. Severe structural damage could occur.

Fig. 6

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85

OPERATOR’S MANUAL EC 350 Working operation in case of PCS failure

2801515

If the engine speed drops abruptly during working or during driving (engine choking) or if the engine even stalls, a failure of the electronic system of the PCS (load limit regulator module) may be the cause. In the event of PCS malfunctions, the display shows a fault code (cf. "Fault code table") and the buzzer sounds.

Switching the proportional valve over to emergency operation

If it is not possible to rectify the fault on site, the proportional valve can be switched over to emergency operation.

• Carry out the following work on the proportional valve:

In such case, working or driving can be carried on at reduced speed.

The proportional valve (1, Fig. 1) is installed in the frame behind the driver’s cab.

• Unscrew the cover plate below the frame.

- Turn out the fixing screw of the electrical connector.

- Withdraw connector.

- Remove protective cap over adjusting screw.

- Slacken counter-nut (2).

- Retract stick cylinder to the limit stop and hold.

- Turn in adjusting screw (3) until swinging is possible without the engine being choked.

Have the PCS checked and re-adjusted by the NEW HOLLAND CONSTRUCTION dealer-service.

Fig. 1

86

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OPERATOR’S MANUAL EC 350 After daily operation

2801352

Shutting off the machine • Park machine on level and firm ground.

• Close cab windows.

• Stand working equipment on the ground.

• Switch the battery main switch to position OFF and withdraw the key lever.

Never shut off the engine out of full load, but continue running for ca. three - five minutes at idling speed to cool down.

• Lock cab door and all lockable trap doors and covers of the machine.

• Clean off gross dirt adhering to the machine.

• Fill up fuel tank.

• Shut off engine.

• Turn key switch to position I (Ignition ON).

• Inspect the machine visually for leaks in the hydraulic system, axles and gearboxes.

• Move both control levers to all directions to depressurize the hydraulic cylinders.

• Shut off pilot control.

Escaping oil constitutes a risk to the environment.

• Withdraw key from key switch of electrical system.

Repair leaks immediately (or have them repaired).

Report oil accidents to the user of the machine.

• Check superstructure, undercarriage and working equipment for damage and all steel components for cracks and fractures.

Report any damage detected immediately to the user of the machine.

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87

OPERATOR’S MANUAL EC 350 WORKING EQUIPMENT Assembling working equipment - safety instructions

2801353

Personnel

Securing working equipment

Assembly work may be carried out only by operating or maintenance personnel who have the necessary know-how at their disposal.

Stand working equipment on the ground in such a way that no movements can be made if mechanical or hydraulic connections become detached.

If such know-how is lacking, meticulous instruction must be given by experienced personnel, e.g. from NEW HOLLAND CONSTRUCTION.

When working in jointed areas, block off the joints. Remove the blocks on finishing work.

The operating manual, and in particular the section headed "Fundamental Safety Instructions", must have been read and understood.

Only such persons may start up the machine during assembly work in order to adjust the attachments.

Incorrect operation of the machine or the attachments may give rise to life-threatening situations.

Personal protective gear and working clothing Wear closely fitting working clothing when working on the machine. Loose, wide garments may catch on machine parts and result in injury.

Wear a safety helmet, safety footwear and gloves.

Tools and auxiliaries Tools, hoists, slings, chocks and other devices must be in a reliable, safe state.

Secure any equipment or component which is to be mounted or dismantled, or whose position is to be changed, with hoists or appropriate slinging/supporting devices to prevent them from moving, slipping or falling inadvertently.

Securing the machine Carry out work on the attachment only if the machine is secured as decribed in the section "Securing the Machine".

Selecting the attachments The machine can be equipped with various attachments. The components of the attachments are assembled with hydraulic cylinders and connectors. Components can be combined in various ways for optimum adaptation of the attachments to the specific application.

Operate the machine only with the equipment and component combinations expressly approved by NEW HOLLAND CONSTRUCTION.

Metal spinters may cause injury when accessory bolts are being driven in or out. A brass or copper mandrel should therefore be used for this purpose, and goggles must be worn.

Use steps and handrails when climbing onto or off the machine.

Always keep steps and platforms in a non-slip state. Remove any oil, grease, earth, clay, snow, ice and other foreign matter immediately.

88

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OPERATOR’S MANUAL EC 350 Protective roof against falling objects

Securing the machine

2796463

2801379

If the machine is used in areas where there is a risk of heavy objects falling, e.g. for - work on earth or rock faces, - demolition or forestry work, it must be equipped with a protective roof (FOPS) and with a NEW HOLLAND CONSTRUCTION approved front guard.

Risk of injury The machine must not be started by unauthorized persons.

Therefore, the machine must be secured.

The machine must be secured as described below: - before fitting or changing the working equipment, and - before carrying out any servicing or repair work on the machine.

• Park machine on level and firm ground.

• Stand working equipment on the ground.

• Shut off engine.

Never stop engine abruptly out of full load, but rather allow it to run for another 3 - 5 minutes at idling speed for reasons of temperature compensation.

• Turn key switch to position I (ignition ON).

• Depressurize the hydraulic system.

• Switch off pilot control.

• Withdraw key from key switch of the electrical system.

• Switch off the battery main switch and withdraw the switch lever.

• Before carrying out work on the electrical system or welding work on the machine, the batteries must be disconnected.

Insulate connecting clamps.

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OPERATOR’S MANUAL EC 350 Attaching and detaching the grab equipment (Option) Attaching and detaching the grab equipment - Safety instructions

Movements of working or grab equipment involve a risk of injury.

So never attempt to change position of grab or grab suspension by hand.

2732880

Attaching the grab

Read and observe: "Attaching and detaching the grab equipment, safety instructions".

Keep away from grab when working equipment is being moved.

• Detach backhoe bucket as described in section "Detaching and attaching the backhoe bucket".

This description applies to machines with cabinet terminal block control according to SAE (see section "Control elements").

• Retract bucket cylinder and mount locking pin for linking element and toggle lever (1, Fig. 1).

If the machine is equipped with a different control, activities "Depressurize hydraulic lines to grab" must be adapted to the control.

• Shut off engine.

• Turn key switch to position I. • Depressurize hydraulic lines to grab:

The linking element must not be used for lifting loads when in a secured state.

- push control lever (70, Fig. 2) to left and hold in place,

The locking pin might bend or break.

- depress "Rotate grab" rocker button (69) to the right and to the left,

Use the load hooks/lugs on the grab or remove the locking pin as long as loads have to be lifted.

Read and observe: "Fitting of working equipment, safety instructions".

- push control lever to right, - release rocker button and control lever.

• Turn key switch to position 0.

• Shut off pilot control with lever (77).

Before fitting, check that grab and machine are filled with identical or mixable hydraulic oil.

If this is not the case, drain oil out of hydraulic system of grab.

Conventional hydraulic oil and biodegradable hydraulic fluid should not be mixed, as this affects biodegradability.

Fig. 1

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OPERATOR’S MANUAL EC 350

Fig. 2

Fig. 4

• The marker grooves on the valves’ squares (arrows, Fig. 3) must be in vertical position.

• Grease all nipples on grab and gearing of grab rotating mechanism.

• Start up engine and lift grab clear of ground.

• Bleed grab hydraulic system by opening and closing grab repeatedly and turning clockwise and counter-clockwise.

Detaching the grab • Open grab shells completely and set grab down on level surface.

• Shut off engine.

• Turn key switch to position I. Fig. 3

• Clean and grease bearing pins and bushings.

• Drive machine towards grab.

• Insert stick into grab bearing, push bearing pin home and secure (2, Fig. 1).

• Shut off engine and depressurize hydraulic lines to grab as described.

• Depressurize hydraulic lines to grab: - push control lever (70, Fig. 2) to left and hold in place, - depress "Rotate grab" rocker button (69) to the right and to the left, - push control lever to right, - release rocker button and control lever.

• Turn key switch to position 0.

• Clean express couplings on grab and stick.

• Shut off pilot control with lever (77).

• Connect hydraulic hoses to grab cylinder (1, Fig. 4) and grab rotation motor (2).

Check that the express couplings are perfectly engaged.

• Disconnect hydraulic hoses (1 and 2, Fig. 4) from express couplings.

• Protect express couplings at grab and stick from soiling by fitting dust caps.

• Unscrew safety device of bearing pin (2, Fig. 1) and withdraw pin.

• Start up engine.

• Lift working equipment carefully to release grab.

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OPERATOR’S MANUAL EC 350 Selecting the backhoe / grab equipment (Option)

2796951

To switch the working equipment over from backhoe bucket to grab operation, two valves (Fig. 17) must be switched over at the stick cylinder.

Switch the valves only when the hydraulic system is depressurized to avoid damaging seals.

(See: "Depressurizing the hydraulic system").

Backhoe bucket operations • The marker grooves on the valves’ squares (arrows, Fig. 5) must be in horizontal position.

Grab operation

Fig. 5

• The marker grooves on the valves’ squares (arrows, Fig. 5) must be in vertical position.

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OPERATOR’S MANUAL EC 350 Detaching / attaching the backhoe bucket

2411343

Danger of injury.

Risk of crushing when working equipment or backhoe is moved.

Therfore, do not attempt to alter the position of the backhoe manually.

Stand back from the backhoe when the working equipment is moved.

Read and observe: "Fitting of working equipment - Safety instructions".

Fig. 1

• Stand working equipment on the ground.

• Place safety wedges under the backhoe bucket (arrow, Fig. 1).

The bucket may otherwise overturn as soon as the linkage pins have been driven out.

• Turn out screws (2 and 4).

• Drive out pins (1 and 3).

• Raise working equipment cautiously (Fig. 2).

The bucket stands now freely on the ground.

• Clean linkage pins and bearing bushes before refitting and protect them against corrosion as described in the section "Corrosion protection for pins and bearings (bushings and hubs)".

Fig. 2

• Attach another backhoe bucket by proceeding in reverse order.

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OPERATOR’S MANUAL EC 350 Corrosion protection for pins and bearings (bushings and hubs)

2801355

Application of Voler A.C. Use Voler A.C. anti-corrosive agent only.

Other agents are not approved by NEW HOLLAND CONSTRUCTION. All pins and bearings (bushings and hubs) of the working equipment or in equipment components must be treated with Voler A.C. anti-corrosive agent before fitting.

Voler A.C.: • permits easy fitting and dismantling • protects against rust, oxidation and similar wear • prevents seizing and fretting corrosion in nonmoving parts of bearings.

This is achieved by aluminium and copper particles forming a protective layer on the metal. This layer removes surface irregularities and does not sweat, seize or harden.

Part nos. for Voler A.C. P/N 73171461 - 0,5 l spray can (CFC-free)

• Clean off grease, oil, dirt and corrosion protection agents from pins and bearings using white spirit or diesel fuel.

Rust patches must be thoroughly removed, if any.

All parts must present a dry, bright metal surface.

• Apply a thin layer of Voler A.C. on pins and all bearings using a brush or a spray can. Pin shafts and bearings must be completely covered by the protective layer.

If the protective layer of a pin already treated with Voler A.C. is damaged, these areas must be touched up before fitting the part.

• Fitting and securing of pins If the pin is too heavy to be fitted manually, apply Voler A.C. at first only on abt. a quarter of the pin’s length Then position pin by means of a lifting gear ready for fitting.

Apply Voler A.C. on the remaining length of pin shaft, fit pin and secure.

P/N 73171462 - 0,5 kg tin P/N 73171463 - 4,5 kg bucket Available from the NEW HOLLAND CONSTRUCTION Spare-Parts Service

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OPERATOR’S MANUAL EC 350 HYDRAULIC HAMMER (Option) Working with the hydraulic hammer, safety instructions

2801519

Keep danger zone clear

Operation with various attachments

All persons must be kept away from the danger zone of the hammer: Risk of flying stone chippings.

If the machine is designed for optional operation with other hydraulically driven attachments (e.g. hydraulic hammer with scrap shears or concrete cruncher), the corresponding sections of these operating instructions must also be observed: "Working with scrap shears, safety instructions" or "Working with a concrete cruncher, safety instructions"

So stop work immediately if anyone enters the danger zone of the hammer or of the machine.

Never resume work until all persons have left the danger zone.

Always close the windscreen of the machine before operating the hammer.

Fit a safety screen for protection from chippings.

Always wear ear protectors.

Never operate the hammer except from the operator’s seat.

Read the operating instructions Also read and note the safety instructions and the instructions for designated use in the operating instructions issued by the manufacturer of the hammer.

Prior to fitting attachments, check that the hydraulic hammer and the machine are filled with the same or compatible hydraulic oil.

If this is not the case, drain the oil out of the hydraulic system of the hammer.

Mineral hydraulic oil and biodegradable hydraulic fluid should never be mixed, as the compound is not biodegradable.

In the event of damage Stop work immediately on detecting damage or loss of oil.

Soak up spilt oil and dispose of it in accordance with local environmental protection regulations.

Rating coordination The machine rating and the rating of the hydraulic hammer must be coordinated.

This prevents the hydraulic hammer from being overloaded.

If in doubt, consult your NEW HOLLAND CONSTRUCTION dealer-service.

Report any accidents involving oil immediately to the user of the machine or to his agent.

Ensure that any damage and leakages are repaired immediately.

Never adjust pressure relief valves yourself, never remove lead seals.

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OPERATOR’S MANUAL EC 350 Working with a hydraulic hammer

2801567

Switching on the hydraulic hammer Read and observe "Working with a hydraulic hammer, safety instructions".

Before starting work: • Check that the hydraulic hammer is securely locked with the operating equipment and that the hydraulic lines are correctly connected (see operating instructions issued by the manufacturer of the hammer).

If the machine is designed for optional operation with a hydraulic hammer and other hydraulically operated attachments (e.g. scrap shears or concrete cruncher):

• Select the "hydraulic hammer" function by pressing the pushbutton (19, Fig. 2), - the LED above the pushbutton lights up, - the PCS switches to the HEAVY mode, (The hydraulic hammer can also be operated in the ECO mode after corresponding reprogramming; consult the NEW HOLLAND CONSTRUCTION dealer-service), - the pedal (60, Fig. 3) is switched over to the "hydraulic hammer" function.

• Set the lever of the valve on the hydraulic oil tank (Fig. 1) to vertical position.

The return line of the hydraulic hammer is then connected direct with the hydraulic oil tank.

Having the valve (Fig. 1) in a position other than that indicated may result in damage to the seals of the hydraulic hammer.

Fig. 3

Hammer operation with set number of blows per minute: • Mount bit, then switch on hammer with pushbutton (82, Fig. 3).

The hammer remains switched on as long as the pushbutton is depressed.

Hammer operation with variable number of blows per minute: Fig. 1

• Mount bit, press pedal (60) forwards. The further the pedal is pressed down, the higher the number of blows per minute.

Switching off the hydraulic hammer • Release the pushbutton (82) or pedal (60).

• Press pushbutton (19, Fig. 2), the LED above the pushbutton is extinguished.

• The pedal (60) is switched over to the "adjusting cylinder" function.

Fig. 2

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OPERATOR’S MANUAL EC 350 SCRAP SHEARS (Option) Working with scrap shears, safety instructions

2801521

Keep danger zone clear

Operation with various attachments

All persons must be kept away from the danger zone of the scrap shears:

If the machine is designed for optional operation with other hydraulically operated attachments (e.g. scrap shears with a hydraulic hammer or concrete cruncher), the corresponding sections of these operating instructions must also be observed:

Risk of flying or falling scrap.

So stop work immediately if anyone enters the danger zone of the scrap shears or of the machine.

Never resume work until all persons have left the danger zone.

Always close the windscreen of the machine before operating the scrap shears.

Fit a safety screen.

Never operate the scrap shears except from the operator’s seat.

Read the operating instructions Also read and note the safety instructions and the instructions for designated use in the operating instructions for the scrap shears.

"Working with a hydraulic hammer, safety instructions" or "Working with a concrete cruncher, safety instructions" Prior to fitting attachments, check that the attachment and the machine are filled with the same or compatible hydraulic oil.

If this is not the case, drain the oil out of the attachment.

Mineral hydraulic oil and biodegradable hydraulic fluid should never be mixed, as the compound is not biodegradable.

In the event of damage Stop work immediately on detecting damage or loss of oil.

Rating coordination The machine rating and the rating of the scrap shears must be coordinated.

This prevents: - the machine from being overloaded or - the stability from being jeopardized.

Soak up spilt oil and dispose of it in accordance with local environmental protection regulations.

Report any accidents involving oil immediately to the user of the machine or to his agent.

Ensure that any damage and leakages are repaired immediately.

If in doubt, consult the NEW HOLLAND CONSTRUCTION dealer-service.

Never adjust pressure relief valves yourself, never remove lead seals.

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OPERATOR’S MANUAL EC 350 Working with scrap shears

2801568

Switching on the scrap shears Read and observe "Working with scrap shears, safety instructions".

Before starting work: • Check that the scrap shears are securely locked with the operating equipment and that the hydraulic lines are correctly connected (see operating instructions issued by the manufacturer of the scrap shears).

• Select "scrap shears" function with rocker switch (49, Fig. 2) (The switch area with the symbol must be depressed, the pilot lamp lights up).

The "hydraulic hammer" and "adjusting cylinder" functions are now disabled.

If the machine is designed for optional operation with scrape shears and other hydraulically operated attachments (e.g. hydraulic hammer or concrete cruncher): • Set the lever of the valve on the hydraulic oil tank (Fig. 1) to horizontal position.

Only then is it assured that the scrap shears will work properly.

Fig. 3

Work with the scrap shears can now begin (Fig. 3): - Close scrap shears = press pedal (60) forwards; - Open scrap shears = press pedal (60) to the rear.

Only for swivel-type scrap shears: - Swivel scrap shears clockwise = Press momentary contact rocker switch (69) to right; Fig. 1

- Swivel scrap shears counterclockwise = Press momentary contact rocker switch (69) to left.

Switching off the scrap shears • Release pedal (60, Fig. 3).

• Switch off rocker switch (49, Fig. 2) (The switch surface with the symbol is raised, the pilot lamp is extinguished).

Fig. 2

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OPERATOR’S MANUAL EC 350 LIFTING-GEAR OPERATION Lifting-gear operation - safety instructions

Never use the machine for lifting-gear operation unless it is equipped and approved for this purpose.

The machine must be equipped with an overload warning system and pipe-fracture safety devices.

Read the sections "Fundamental safety instructions" and "Operation, safety instructions" with care and observe the instructions contained in them.

Switch the overload safety device on before starting work.

Room for slingers Slingers must approach the working gear from the side when the load is slung.

2413662

Sling the load in such a way as to prevent it from slipping or falling while being lifted or transported.

Transporting the load Never move the load above persons. Keep the load as close as possible to the ground.

Prevent the load from swinging.

The machine must never be driven with a slung load unless the road surface is even and the roadway is clearly visible.

Roadway visibility can be improved by adjusting the boom and swinging the superstructure to the right.

Use only tested and efficient lifting gear with an adequate load capacity.

The built-in overload warning device cannot totally exclude accidents due to incorrect operation. This applies in particular to: - inadequate hooking of the load or the load-carrying device, - excessive deceleration or acceleration forces (hard braking or strong swinging with the load to be moved), - loads dropping into the cable, - oblique pull, - driving the excavator into an area with steeply sloping ground, - exposure to strong wind.

Hoist the load only from the hooks provided for that purpose.

Avoid these risks by handling the machine carefully and with discretion.

During the lifting and transporting of loads, slingers or other assistant personnel must stand in a safe position or go beside the machine to ensure that they are outside the hazard zone.

Ensure that slingers and other assistant personnel are always in sight.

Slinging loads

Never use the teeth of backhoe dippers, buckets or grippers.

Cable lugs, thimbles or U-bolts may slip from the teeth, putting the load out of control.

Register the weight of the load. Sling only those loads not exceeding the load capacity of the lifting gear and of the machine (cf. "Technical data").

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OPERATOR’S MANUAL EC 350 Loading hooks on backhoe buckets and couplers (Option)

2732886

Before attaching loads:

To enable hydraulic excavators to be used for lifting purposes too, backhoe buckets and couplers are available with welded loading hooks (Fig. 1 and 2) (Option).

Read and observe: "Lifting gear operation - Safety instructions".

Loading hook capacity

Switch on the overload warning system before starting work.

Attach the load only to the load hook provided for this purpose.

The maximum capacity of the loading hook is marked on the hook (Fig. 1 and 2).

Extra important for load hook on linking element:

Excavator load capacity

If a different working attachment (e.g. a grab) is mounted instead of the backhoe, the linking element and toggle lever must be joined with a locking pin.

The admissible load capacity depending on working equipment and working radius is given in the "Load capacities" table, cf. "Technical Data".

In this case the load hook must not be used for lifting loads.

The locking pin is not designed for such loads and may bend or suddenly break. In this case the linking element and attached load suddenly start to swing.

The swinging load may get out of control, resulting in injury or damage. In extreme cases, the stability of the machine may be at risk.

So: Never attach loads to the load hook of a locked linking element.

Always use the load hooks/lugs on the attachment (e.g. grab). If the attachment is not equipped with a load hook but a load has to be moved, the locking pin can be removed from the linking element and toggle lever as long as the load hook on the linking element has to be used.

Fig. 1

Fig. 2

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OPERATOR’S MANUAL EC 350 Overload warning system

2461493

(Option)

Function of overload warning system

Activating overload warning system 2472319

The overload warning system gives only warning signals; it does not prevent overturning.

The overload warning system must be activated before the excavator is used for lifting-gear operation:

When the warning signal sounds: - let down load immediately, - reduce working radius or weight of load.

Hydraulic excavators used as lifting devices or for the transport of loads must be equipped with an overload warning system and an pipe-fracture safety system for the lifting cylinders of the working hydraulics.

The overload warning system must be on when such works are carried out.

If the admissible load moment is exceeded, warning lamp (11, Fig. 3) lights up and the buzzer sounds.

Fig. 4

• Use the key (29, Fig. 4) to activate the overload warning system.

The LED I above the switch indicates.

Fig. 5 Fig. 3

The admissible load moment is exceeded when too heavy a load is being lifted at a great working radius of the working equipment (lifting capacity cf. section "Technical data").

• Remove the driver of the cam plate (3, fig. 5) from the holder at the boom support (4).

• Turn the cam plate so that the drivers of the cam plate (3) and the boom lower section (5) are beside each other.

• Screw the drivers together.

• Open stop valve (1) fully.

• Test the overload warning system.

The overload warning system is then operational.

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OPERATOR’S MANUAL EC 350 Testing the overload warning system

Deactivating overload warning system

2801357

2472320

Check correct function of the overload warning system:

If the machine is operated exclusively in excavator mode the overload warning system may be deactivated.

- daily before starting operation and - before each lifting-gear application.

• Set attachments down on the ground.

This reduces the oil pressure in the line between boom cylinder and switching unit (2, Fig. 5).

• Close stop valve (1).

• Detach drivers of cam plate (3) and boom (5) from each other.

• Attach driver of cam plate to holder at boom support (3).

• Depress key (29, Fig. 4) until the LED no longer lits up.

Fig. 6

The overload warning system is now inoperational.

• Activate overload warning system (cf. "Activating overload warning system".

• Raise boom to highest position limit stop.

• The warning light (11, Fig. 6) indicates and the buzzer sounds).

If an error occurs have the overload warning system tested and repaired immediately by NEW HOLLAND CONSTRUCTION. The adjustment or inspection is confirmed by a certificate.

Never carry out setting of or repairs to the overload warning system yourself.

Correct function of the overload warning system could be impaired or it could fail completely.

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OPERATOR’S MANUAL EC 350 Pipe-fracture safety system, function (Option) The pipe-fracture safety system prevents the working equipment from being lowered if a hydraulic line to the boom cylinder piston side fractures.

The hydraulic connection at the piston side of the boom cylinder is blocked. hydraulic oil can only flow out here when the "lower boom" function is operated.

2413657

Machines with multi-position boom With these machines, additionally to the boom cylinders, the adjusting cylinder of the boom upper section is also equipped with a pipe-fracture safety device at the rod side.

If a hydraulic line is fractured: • Operate the control lever for the "lower boom" function to 0 position.

• Warn people in the vicinity using the horn.

• Secure the range of the working equipment and suspended load, so that persons cannot remain under the working equipment and load or in the vicinity of the fractured hydraulic line.

When the working equipment and the load are lowered to the ground, oil flows out of the hydraulic line at the fracture.

• Carefully lower working equipment and load to the ground.

• Replace fractured hydraulic line (or have it replaced).

Only then resume operation.

• Collect escaped hydraulic oil. Dispose of oilsoaked rags, oil-binding agent, etc. in an environmentally responsible manner.

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OPERATOR’S MANUAL EC 350 OPTIONAL EQUIPMENT Rotary beacon

2732887

The rotary beacon is installed on a mounting post (Fig. 1) and secured with a clamping screw.

The electrical connection is integrated in the mounting post. Additional wiring is not necessary.

The rorary beacon can only switched on, when the key switch electrical system is switched to position I (ignition ON).

Switch rotary beacon ON • Switch rocker switch (52, Fig. 2) symbol side down. (The monitoring lamp inside the switch lits up).

Switch rotary beacon OFF

Fig. 1

• Switch rocker switch (52) symbol side up. (The monitoring lamp inside the switch goes out).

Fig. 2

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OPERATOR’S MANUAL EC 350 Switching on the floodlamps at the rear of the cab

2732888

The floodlamps (Fig. 3) can only be switched on when the electrical system key-switch is in position I (ignition ON).

Switching the floodlamps on • Switch on rocker switch (51, Fig. 4). (The symbol face is depressed and the indicator lamp inside the switch lights up.)

Switching the floodlamps off • Switch off rocker switch (51). (The symbol face is up and the indicator lamp inside the switch is off.)

Fig. 3

Fig. 4

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OPERATOR’S MANUAL EC 350 Radio

2796946

The radio is factory-installed at the right side behind the driver’s seat (Fig. 5).

The radio installed may be of different types.

Instructions on how to use the radio can be found in the manufacturer’s instructions.

The electrical system voltage of 24V is stepped down to the operating voltage of the radio (12V) by means of a voltage converter.

The radio remains connected to the power supply even if the key-switch is in the OFF position. Therefore, switch off the radio when leaving the machine.

Fig. 5

If the radio remains in operation for a longer period of time (e.g. during the weekend) without power supply from the machine’s engine, the batteries will be discharged.

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OPERATOR’S MANUAL EC 350 Refuelling system

2716604

Refuelling with the refuelling system, safety instructions

Explosion hazard

Securing the machine

No smoking. Keep away from open flames. Fuels and fuel gases are highly flammable; fire hazard.

While refuelling the machine, secure it against unauthorized starting: - Set working equipment down on the ground - Switch off the engine - Remove the key from the key-operated switch for the electrical system.

Switch off fuel-fired auxiliary heating and air-conditioning systems.

Personal and environmental protection Fuel may damage the skin, so wear protective gloves or apply a barrier cream.

Avoid spillage, ensure that no fuel soaks into the ground; it constitutes an environmental hazard.

Soak up spilt oil immediately with cotton waste or binding agent and dispose of it in accordance with local environmental protection regulations.

Report any accidents involving oil immediately to the user of the machine or to his agent.

108

Increased risk of contamination If the machine is often or regularly refuelled with fuel from cans or barrels, the refuelling system is exposed to an increased risk of contamination.

In this case the preliminary fuel filter must also be drained and cleaned more often than specified in the servicing schedule.

The fuel filter must be changed at shorter intervals.

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OPERATOR’S MANUAL EC 350 Refuelling with the refuelling system

2904428

• Connect the intake hose to the high-capacity tank.

Read and observe: "Refuelling with the refuelling system, safety instructions".

Fuel can be pumped from a high-capacity tank into the fuel tank of the machine by means of the refuelling system.

The refuelling system is installed in the frame under the pump compartment at the right-hand side of the machine (Fig. 1).

• Switch on the pump with rocker switch (50, Fig. 2) by - setting the symbol face of the switch to the middle position, - sliding the lock (arrow) rearwards and by depressing the symbol face of the switch briefly to start up the pump.

After releasing, the rocker returns to the middle position.

The refuelling system comprises the intake hose (3), the electrically driven fuel pump (2) and the fuelling hose to the fuel tank (1).

The intake hose is accessible after opening the flap in front of the pump compartment.

Fig. 2

The pump is switched off automatically when the fuel tank is filled.

• Set rocker switch (50) back to resting position.

(The symbol face of the switch is up).

Fig. 1

The pump may be slightly or even irreparably damaged if allowed to run dry during prolonged periods.

Never switch on the pump therefore unless it is needed for refuelling.

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OPERATOR’S MANUAL EC 350 Driver’s seat - adjusting the lumbar support

2796932

Adjusting the lumbar support

Never adjust the seat while driving, but concentrate on the road.

The lumbar region is supported by air chambers built into the backrest. These chambers can be filled with air or deflated independently of each other. An electrically operated compressor as well as valves are installed in the seat.

Always stop the machine before adjusting the seat.

The amount of air is controlled with switches (1 and 2, Fig. 1):

Risk of accidents

- Switch 1 = lower chamber, - Switch 2 = upper chamber.

The following applies to both switches: - Press switch in direction + = chamber is filled with air.

- Press switch in direction chamber is deflated.

-

=

Fig. 1

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OPERATOR’S MANUAL EC 350 Driver’s seat with pneumatic suspension and integrated heating

2800297

Adjusting the pneumatic suspension

Risk of accidents Never adjust the seat while driving, but concentrate on the road.

Always stop the machine before adjusting the seat.

The driver’s seat can be adjusted in inclination, height, and fore-and-aft position. It also has an electrical heating system.

The seat has a pneumatic suspension system.

The seat suspension can be adjusted to suit the driver’s weight.

The lumbar region is supported by air chambers integrated into the backrest. These air chambers and the seat suspension are supplied with compressed air by an electrically driven compressor.

The compressor and valves are integrated into the seat.

• The seat suspension can be adjusted with the rocker switch (3, Fig. 1) to suit the operator’s weight: - Press switch in + direction = suspension harder.

-

- Press switch in direction = suspension softer.

Fore-and-aft adjustment • Pull bar (8) upwards, slide seat into desired position and engage bar.

Adjusting the seat cushion • Height and inclination to front / back: Pull handles (9 or 10) upwards. Bring seat cushion into desired position and engage handles.

Adjusting the backrest • Pull lever (7) upwards. Bring backrest into desired position and engage lever (7).

Adjusting the armrests • The armrests can be raised and lowered as required.

The inclination can be adjusted with the knobs (11).

Fig. 1

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OPERATOR’S MANUAL EC 350 Adjusting the lumbar support

Switching on the seat heating

Two air chambers are integrated into the backrest. They can be filled with air or deflated independently of each other. An electrically operated compressor as well as valves are installed in the seat.

The driver’s seat has two integrated heating elements, one in the seat cushion and on in the backrest.

The amount of air is controlled with rocker switches (4 and 5, Fig. 2): - Switch 4 = lower chamber, - Switch 5 = upper chamber.

- Press switch in direction + = chamber is filled with air.

-

The seat heating can be switched on only when the key-switch for the electrical system is set to position 1 (ignition ON).

To switch on the seat heating:

The following applies to both switches:

- Press switch in direction chamber is deflated.

The maximum heating output is fixed; a thermostatic switch prevents the seat from being overheated.

=

• Switch on rocker switch (2, Fig. 2).

The pilot lamp (1) lights up.

To switch off the seat heating: • Switch off rocker switch (2).

The pilot lamp (1) goes out.

Fig. 2

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OPERATOR’S MANUAL EC 350 Air conditioning systems for excavators

2801524

Operating Instructions Location of controls The heating control button is located on the left behind the driver’s seat. The blower key (cf. fig. 1) is installed on the control panel in front on the right. The A/C switch (cf. fig. 2) is installed on the control panel beside the right armrest.

Two outlet nozzles are located below the driver’s seat and two on the right at the front screen. (In newer cabs and in the NEW HOLLAND CONSTRUCTION series, outlet nozzles are also provided for at the rear at head level) Blower operation: The blower is switched in by pressing the blower key. Pressing the key several times permits selection of the blower intensity: Key pressed ... times

Blower level

1 2 3 4 5 6

1 2 3 2 1 0

Fig. 1

Operation of the heating: The blower must be on at least at level 1.

Fig. 2

Turning the heating button clockwise, the outlet temperature can be increased.

For maximum performance turn the heating knob to the right limit stop.

At the left limit stop, the heating is off.

Operation of the air conditioner: For air conditioner operation start the engine and set the air conditioner switch to ON. Select the blower intensity level 2 and 3 via key (15, Fig. 1).

The blower intensity level 1 is automatically preselected.

Adjusting the outlet nozzles: The small louver nozzles permit adjustment of the air flow horizontally by 90˚ and vertically by 0 to 120˚. Both adjustments can be combined.

The maximum cooling performance is reached at maximum blower speed with the heating regulator being at the left limit stop.

If the temperature is not high enough, the heating can be used to supply additional heat.

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OPERATOR’S MANUAL EC 350 Troubleshooting table for air conditioning systems Before checking the heating/air conditioning system, switch the blower switch (Fig. 1) to stage 3.

Fault

Cause

Signs

Remedy

System not cooling

Electric Fuse defective

Electrical system components not working

Replace fuse

Line interruption

Check lines for loose contacts or breaks

Electrical system components not working

Interruption in solenoid of compressor

Compressor clutch or solenoid not working

Check power supply to clutch

Thermostat contacts charred or thermostat defective

Compressor clutch not responding

Replace thermostat

Blower operation interrupted

Blower not running

Check power supply, replace blower

Pressure switch defective

Electrical system components not working

Check pressure switch, replace if necessary

Visual inspection V-belt sheave slipping or not turning on V-belt although engaged

Adjust V-belt tension, replace V-belt Check compressor, repair or replace, consult Service Dept.

Expansion valve jammed in open position

High pressure low, intake pressure high, evaporator flooded1)

Replace expansion valve, consult Service Dept.

Thermostat sensor in wrong position

Evaporator iced up, so no air throughput

Move sensor to position specified by the manufacturer

Refrigeration system Refrigerant line interrupted

Loss of entire coolant filling

Check all lines for break due to external influence or chafing

No reading on intake-pressure or high-pressure gauge 1)

Evacuate, fill, carry out leakage test and repair, consult Service Dept.

Mechanic V-belt for compressor loose or torn Compressor run partially or completely interrupted

Leakage in system

1)

detectable only with high-pressure or low-pressure gauges connected to the service valves (refrigerant lines close to compressor).

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OPERATOR’S MANUAL EC 350 Fault

Cause

Signs

Remedy

Heat removal capacity inadequate

Mechanic Compressor clutch slipping

Visual inspection

Repair clutch or replace compressor, consult Service Dept.

Blower passage obstructed

High blower speed but low air throughput

Check air shafts and outlets for obstructions.

Remove obstruction

Air filter blocked

Insufficient air through-put by blower

Clean or replace air filter

Outside air/circulating air valve set to outside air position

Insufficient cooling performance at high outdoor temperatures

Set to circulating air, check actuator

Air throughput of condenser too low: filter and/or cooling fins contaminated

Poor cooling effect at air nozzles

Clean filter and/or cooling fins

Evaporator blocked

Cooling fins contaminated

Clean evaporator

Bowden cable for water valve incorrectly adjusted

Warm air emerging

Adjust Bowden cable

Heating cannot be turned off

Valve not correctly installed in flow or return direction

Check flow or return direction with respect to the direction of flow on the valve and correct, if necessary

Actuator or Bowden cable defective

Check actuator and/or Bowden cable, replace if necessary

Refrigeration system Refrigerant level too low

High-pressure reading too low1)

Moisture or no refrigerant in the system

Thermostat defective

1)

Top of refrigerant until pressure reading is normal, consult Service Dept.

Drain out air conditioning system, replace collector drier, evacuate and fill, consult Service Dept.

Intake-pressure reading high, clutch responding very often

Replace thermostat

detectable only with high-pressure or low-pressure gauges connected to the service valves (refrigerant lines close to compressor).

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115

OPERATOR’S MANUAL EC 350 Fault

System cooling intermitently

Cause

Signs

Remedy

Collector drier saturated

Intake pressure reading low, drier cold, icing possible

Drain air conditioning system, replace collector drier, evacuate and fill

Premature cutout of electromagnetic clutch

Check lines and repair or replace

Interrupted operation of electrical components

Replace defective component

Visual inspection; compressor runs until high pressure has built up, then clutch starts to slip. Possible noise, substantial wear

Repair or replace compressor, consult Service Dept.

System iced up at intervals

Replace expansion valve, thermostat or collector drier

Intake pressure may be low1)

Replace thermostat

V-belt slipping and making noises

Tension or replace V-belt

Clutch loud

Slipping possible: loud when connected

Repair clutch

Compressor loud

Mounting loose, internal components out of true

Repair mounting, replace compressor, consult Service Dept.

Fan loud, excessive wear of blower motor

Blower motor loud

Replace blower

Electric Power interruption, chassis ground defective or loose contacts in compressor solenoid Blower switch or motor defective Mechanic Compressor clutch slipping

Refrigeration system System icing up

Thermostat defective System very loud

1)

Mechanic V-belt loose or excessively worn

detectable only with high-pressure or low-pressure gauges connected to the service valves (refrigerant lines close to compressor).

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OPERATOR’S MANUAL EC 350 Fault

Cause Refrigeration system System overfiled

Insufficient refrigerant in the system

Signs

Remedy

Rumbling noise or vibration of high-pressure line, knocking noises in the compressor, high pressure and intake pressure too high

Drain off refrigerant until high-pressure reading is back to normal, consult Service Dept.

Hissing in evaporator housing at expansion valve, high pressure too low

Check for leakages, top up system, consult Service Dept.

Causes of strongly diverging pressure measurements1)

1)

Suction pressure indication too low

Temperature regulator defective

High-pressure indication normal

Obstruction between drier and expansion valve, moisture in the plant, expansion valve clogged up

Suction pressure indication high High-pressure indication normal

Malfunction of expansion valve Temperature sensor of expansion valve defective

Suction indication high High-pressure indication low

Refrigerating compressor defective Valve plates in refrigerating compressor defective

High-pressure indication very high

Too much refrigerant in the system Liquifier contaminated Obstruction in liquifier, drier, filter or a high-pressure line

detectable only with high-pressure or low-pressure gauges connected to the service valves (refrigerant lines close to compressor).

Nominal values for normal conditions: Evaporation pressure at engine idling speed P0 = 1.8 bars Liquifaction pressure at engine idling speed PC = 16.3 bars Note: Please observe that the values indicated are strongly dependent on the actually existing ambient parameters (temperature, humidity and moisture).

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117

OPERATOR’S MANUAL EC 350 Multi-position boom

2486260

Description of multi-position boom

Working with the multi-position boom

Fig. 1

Fig. 2

With this version there is an additional joint (2) between the boom lower section (3, Fig. 1) and the boom upper section (1). An additional hydraulic cylinder (4) (adjusting cylinder) makes it possible to adjust the boom upper section.

Lowering boom upper section

The multi-position boom has the following advantages for travelling and working: • Extended working area,

• Operate pedal (60, Fig. 2) forwards. The adjusting cylinder extends.

Raising boom upper section • Operate pedal (60) to rear. The adjusting cylinder retracts.

• Improved mobility of equipment, • Easier transport of machine on flat-bed trailers.

Transporting the machine with multi-position boom The optimal transport height for loading on a flat-bed trailer is achieved if the • Adjusting cylinder is fully retracted, • Stick cylinder is fully extended, • Backhoe cylinder is fully extended.

• Retract the boom cylinder so that the multiposition boom rests as flat as possible on the loading surface.

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OPERATOR’S MANUAL EC 350 KEYBOARD, FURTHER FUNCTIONS

2801358

Service (key 16), function The "Service" key (16, Fig. 1) can be used; - to set the time (cf. "Setting the time"); - to display the operating hours interval after which the next maintenance must be performed.

If servicing is due, "SERVICE" is automatically displayed when the key-switch is switched on.

After about five seconds, the number of hours run is again displayed.

Key (16) is active immediately after switching the keyswitch on and after the self-test of the central electronic unit is terminated.

To display the next maintenance interval: - Depress key (16) until "NEXT SERVICE" is displayed; LED I above the key is lit up.

Instead of the total number of hours run, the screen displays the operating hours interval after which the next maintenance must be performed.

The maintenance intervals displayed are those requiring the installation of new parts. (At 50 and thereafter every 500 operating hours).

Fig. 1

The following applies to the maintenance intervals: The NEW HOLLAND CONSTRUCTION technician confirms the servicing work carried out with a tester. The electronic unit then calculates the operating hours of the next maintenance interval.

The servicing work in acc. with plans T, W and A must moreover be carried out regularly.

The information is displayed until key (16) is depressed a second time. The screen will then display again the total number of operating hours.

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119

OPERATOR’S MANUAL EC 350 Display (key 18), function

2732727

The "Display" key (18, Fig. 2) can be used to display the following information: - time of day in hours:minutes (standard indication), - number of engine revolutions in rpm (rpm = min-1), Key (18) is active immediately after switching on the keyswitch and after the end of the self-test of the central electronic unit.

The information is shown on the display (3) until another information is called up with key (18).

To indicate the engine revolutions

Fig. 2

• depress key (18). LED I lit up.

Display (3) shows the number of revolutions of the engine by a four-digit number in rpm (rpm = min-1).

To indicate the time of day • depress key (18) until LED I is no longer lit up.

Display (3) shows once again the time of day in hours and minutes.

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OPERATOR’S MANUAL EC 350 Setting the time

2800864

For different reasons it may become necessary to set the time stored in the central electronic unit and displayed on the screen (e.g. summer/winter time change).

The "Setting the time" function is active when: - the keyswitch is turned to position I (the engine must not be started) and when - the self-test of the central electronic unit is terminated.

• Depress key (16, Fig. 5) until "SET" is displayed; LED I above the key is lit up.

• Depress key (18), LED I above the key is lit up.

Fig. 3

The screen displays the information as shown in Fig. 6. The hours can now be set.

To do so, depress key (24) or (25) until the desired hour is reached.

- Key (24) = after each depression of the key, the display is incremented by one hour.

- Key (25) = after each depression of the key, the display is decremented by one hour.

Setting the minutes: • Depress key (18).

The display changes from

Fig. 4

"SET HOUR" to "SET MIN".

Depress key (24) or (25) until the minutes have been set.

• Depress key (18) to store the changed setting.

The screen displays again the time in hours:minutes.

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OPERATOR’S MANUAL EC 350 Display, setting the contrast

2800863

Under unfavourable light conditions, in strong sunshine or in extremely cold weather it may be necessary to change the contrast setting of the display to ensure the readability of the characters displayed on the screen.

The actual contrast setting is displayed as a numerical value. The factory-set value is 127 (medium contrast). It can, however be varied between 0 (weak contrast) and 254 (very strong contrast).

The "contrast set" function is activated when: - the key-switch is set to position I (engine not yet started) and

Fig. 5

- the self-test cycle of the central electronic unit is terminated.

Setting the contrast: • Depress key (16, Fig. 3) until "SET" is indicated. LED I above the key is lit.

• Depress key (18) until "CONTRAST" is displayed. LED I above the key is lit.

The screen displays the information shown in Fig. 4.

The contrast can now be set.

To do so, depress key (24) or (25) until the desired contrast is reached:

Fig. 6

- Key (24) = each depression of the key increases the number by one and the characters on the display are darker.

- Key (25) = each depression of the key decreases the number one and the characters on the display are lighter.

• Depress key (18) to save the new setting.

The screen displays again the time in hours:minutes.

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OPERATOR’S MANUAL EC 350 Immobilizer, deactivate / activate

2904032

After enabling of the immobilizer function, the central electronic unit request the operator to enter the code whenever the machine is being put into operation. To avoid having to enter the code after each break of the work (engine shut off), the immobilizer can be deactivated.

• Set key-switch to I. Wait until the buzzer sounds a second time and the indicators on the display are fully visible (The self-test of the central electronic unit is then terminated).

• Depress key (16, Fig. 7) until the screen displays "SET" and "CODE Y/N" (Fig. 8).

- Then depress key (25) to deactivate the immobilizer.

The display (B) changes from I to 0.

Fig. 7

• Depress key (25) to activate the immobilizer.

The display (B) changes from 0 to I. • Depress key (18) three times to display again the operating hours and the time on the screen.

When the machine is immobilized or at the end of each working shift, the immobilizer should be reenabled.

Fig. 8

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OPERATOR’S MANUAL EC 350

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OPERATOR’S MANUAL EC 350 PART 3 - INSPECTION AND SERVICING

Operating manual

2261178

Target group Operating personnel + Inspection and servicing personnel

Part 1 INTRODUCTION FUNDAMENTAL + SAFETY INSTRUCTIONSRepair personnel

Operating personnel

Part 2 OPERATION

The operating personnel must have knowhow relevant to the operation and the application of this or comparable machines.

Inspection and servicing personnel

Part 3 INSPECTION AND SERVICING

The inspection and servicing personnel must have know-how relevant to the inspection and servicing of this or comparable machines.

Repair personnel

Part 4 REPAIR WORK

Part 5 ANNEX

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The repair personnel must have know-how and experience relevant to the repair of this or comparable machines.

Operating personnel + Inspection and servicing personnel + Repair personnel

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OPERATOR’S MANUAL EC 350

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OPERATOR’S MANUAL EC 350 Inspection and servicing - safety instructions

2801359

Operating manual

Securing working equipment

No inspection and servicing work may be carried out until the operating manual has been read and understood.

Pay special attention to the:

Stand working equipment on the ground in such a way that no movements can be made if mechanical or hydraulic connections become detached.

"Fundamental Safety Instructions" and all warnings and safety instructions attached to the machine.

When working in jointed areas, block off the joints. Remove the blocks on finishing work.

The operating manual lists all jobs to be done. The descriptions of job sequences, however, provide only experienced personnel with the necessary instructions.

Secure any equipment or component which is to be mounted or dismantled, or whose position is to be changed, with hoists or appropriate slinging/supporting devices to prevent them from moving, slipping or falling inadvertently.

The operating manual must be kept with the machine at all times.

Inspection and servicing personnel Inspection and servicing personnel must have the necessary know-how on the inspection and servicing of this or comparable machines.

Securing the machine Carry out servicing work only if the machine is secured as described in the section "Securing the Machine".

Climbing onto and off the machine Personal protective equipment and working clothing Wear closely fitting working clothing when working on the machine. Loose, wide garments may catch on machine parts and result in injury.

Wear a safety helmet, safety goggles, safety footwear, gloves and, in the event of high noise levels, ear protectors.

Use only the steps, platforms and handrails provided when climbing onto or off the machine.

Always keep steps, platforms, handles and handrails in a non-slip, safe state and remove any oil, grease, soil, clay, snow, ice and other foreign matter immediately.

Always face the machine when climbing on and off.

Check state of tools Use only fully functional, reliable tools.

Select the right tool for the job.

Wrenches of the wrong size, for example, may slip and cause injury.

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OPERATOR’S MANUAL EC 350

Cleaning jobs

Fastening and securing elements

Clean the units within the working range before starting work.

Select the cleaning agent according to the material constituting the parts to be cleaned.

Check fastening and securing elements, e.g. bolts, nuts, washers, before using them again.

Replace any damaged parts.

Example: Never clean rubber or electrical parts with solvents or steam jets.

Use lint-free cleaning rags when working on the hydraulic system or the engine.

Cleaning agents and solvents may give off harmful, readily flammable vapours.

Never work with such agents except on well ventilated premises; never inhale the vapours and never smoke.

Prevent solvents and cleaning agents from coming into contact with the skin.

Wear gloves.

Observe the instructions on the packaging.

Handling flammable liquids When handling flammable liquids: - never smoke, - keep away from unshielded light sources and naked flames.

Fuel and other consumables often have low flash points and are readily ignited.

Never attempt to extinguish burning liquids with water. Use - dry powder, - carbon dioxide or - foam extinguishers.

Handling oils and greases Hot lubricant or hydraulic oil emerging uncontrolled from the system may result in severe burns.

Never set foot within reach of the emerging oil jet.

Avoid contact with the skin. Wear gloves and firm protective clothing.

Used oil may be harmful to the skin.

Clean soiled skin thoroughly with warm soapy water and apply a barrier cream.

Never use fuels or solvents for cleaning the skin.

If you have swallowed any oil, avoid vomiting but consult a doctor immediately.

Visible loss of oil Have any visible leakage repaired immediately.

Escaping oil is an environmental hazard.

Soak up any oil that has escaped with a binding agent. Sweep up binding agent and dispose of it separately from other waste.

Water used for extinguishing purposes would vapourize instantaneously on contact with burning substances and spread burning oil, for example, over a wide area.

Water generates short circuits in the electrical system, possibly producing new hazards.

Notify the fire brigade.

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OPERATOR’S MANUAL EC 350

Relieving residual pressure in the hydraulic system

Environmentally compatible disposal

Only unpressurized hydraulic systems may be opened. Even when a machine is parked on a horizontal surface with its attachments supported on the ground and its driving motor switched off, there may still be substantial residual pressure in parts of the hydraulic system, e.g. primary pressure from the last hydraulic movements prior to stopping the machine.

Oils, greases, brake fluids, cleaning agents, solvents and oily components, e.g. filters, cleaning rags, replaced wear parts and unserviceable machine parts, must be disposed of separately in the interests of environmental protection.

Residual pressure is reduced only gradually. If an intervention into the hydraulic system is to be undertaken immediately after stopping, depressurize the system as described in the section "Depressurizing the Hydraulic Plant".

Screwed connections, piping, hydraulic hoses Repair any leakages in the piping and hose system immediately.

A fine, highly pressurized jet of hydraulic oil can penetrate the skin.

Never search for leakages with the fingers, but use a piece of cardboard and always wear goggles.

If oil has penetrated into the skin, consult a doctor immediately.

Never repair damaged piping; always replace it.

Replace hydraulic hoses immediately on detecting any damage or moist areas.

Tighten leaking screw plugs only when the system is depressurized.

Never dispose of such substances with standard household refuse.

Empty substances into the containers provided for this purpose.

Even biodegradable, "environmentally friendly" hydraulic oil has to be disposed of separately like any other oil.

Never allow oils and oily waste to get into the soil or into water: environmental hazard!

Sealing faces Individual spares may contain asbestos.

Such spares or their packaging are marked with: Never process spares containing asbestos mechanically. Inhaling asbestos dust is a health hazard.

Clean sealing faces prior to assembly.

Exhaust gases Exhaust gases are a health hazard: never inhale them.

When working on enclosed premises, draw off exhaust gases with a suction plant and ventilate the premises well.

Escaping oil is an environmental hazard.

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OPERATOR’S MANUAL EC 350

Handling batteries

Selecting oils and greases

Batteries give off explosive gases.

Use the recommended qualitities only, matching viscosities with the temperature level.

Never handle batteries close to naked flames and unshielded light sources, never smoke.

Battery acid is toxic and corrosive.

Avoid any contact with the skin, mouth, eyes and clothing. Avoid spilling battery acid or inhaling the vapours.

Wear gloves, firm protective clothing and goggles when handling batteries.

If the skin is splashed with acid, rinse thoroughly with water and consult a doctor.

If the eyes are splashed with acid, rinse thoroughly with running water and consult a doctor immediately.

Never set tools down on the battery. They may induce a short circuit, causing irreparable damage to the battery and injuring persons.

Never wear metal necklaces, bracelets or watch-straps when working on the battery. The metal parts may induce a short circuit, resulting in burns.

Dispose of used batteries separately from other waste in the interests of environmental protection.

Prior to work on the electrical system Prior to any work on the electrical system involving tools, spares etc. coming into contact with electric cables or contacts, disconnect the battery.

Filters Replace all filter elements or filter cartridges within the specified periods if cleaning is not explicity authorized.

All filters are coordinated carefully with the equipment. Original NEW HOLLAND CONSTRUCTION parts must be used to ensure smooth running and a long service life of the engine and the hydraulic units

Sealing elements When dismantling parts, watch for sealing elements.

Check sealing elements prior to installation and replace any that are even slightly damaged.

When assembling, ensure a perfect fit.

Oil-level check and oil change Position the machine horizontally.

Change the oil when the machine is at operating temperature.

Warm oil flows better and carries suspended particles (carbon or abraded matter) better.

Lubricating Clean the lubricating nipple, then lubricate as scheduled.

Disconnect first the negative pole, then the positive pole.

After work:

After servicing

Connect first the positive pole, then the negative pole.

To prevent corrosion, coat all bright metal parts with a grease film.

On completing work, reinstall all protective devices.

Never start up the drive motor while work is being done on the machine.

Carry out a performance test with the machine.

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OPERATOR’S MANUAL EC 350 Inspection and servicing plans - instructions

2732693

Intervals

Oil drain intervall

The inspection and servicing plans list all jobs which have to be done on the machine at regular intervals.

Do not extend lubricating oil and filter change intervals unless the engine is operating with very low fuel consumption and high oil consumption.

Extended oil and filter change intervals will decrease engine life due to factors such as: corrosion, deposits and wear (see:" Engine operation and maintenance manual", section V).

The individual inspection and servicing plans are marked with letters providing a link between the operating hours (Oh) recorded by the hours-run meter of the machine and the inspection and servicing plans.

Meanings: Plan

Do all jobs...

Oil / Greases The "Lubricants" section quotes the specifications of the oils and greases to be used.

V

... once prior to initial commissioning.

N

... after initial commissioning

T

... every 10 Oh or every working shift1)

I

Oils for combustion engines

W

... every 50 Oh or once a week1)

II

Oils for hydraulic systems

A

... every 250 Oh or 6 months1)

III

Oils for gearboxes and axles

B

... every 500 Oh

V

Greases for bearings and swivel connections

C

... every 1000 Oh

D

... every 3000 Oh

Meanings:

Additional engine maintenance intervalls are: 1500 hours; 6000 hours or 2 years (cf. "Engine operation and maintenance manual").

1)

whichever comes first.

Oh = Operating hour

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Cleaning jobs Cleaning jobs, especially on cooling systems, must be done at shorter intervals if the machine is exposed to severe dust build-up.

Servicing material The servicing material required for regular servicing work can be found in the spare parts list under assembly 92.020.

131

OPERATOR’S MANUAL EC 350 Plan V - Once before first commissioning Component designation

Servicing activity

Engine

Check oil level according to oil inspection plan

Cooling system

Check coolant level

Electrical system Battery Battery Lighting

Check acid level 1) Check charge condition Check operation

Monitoring, warning, and control elements

Check operation

Hydraulic system Oil reservoir Operating pressure

Check operation Check oil level according to oil inspection plan Check (NEW HOLLAND CONSTRUCTION dealer-service)

Travel gear unit

Check oil level according to oil inspection plan

Swing gear Expansion reservoir Superstructure holding brake

Check oil level according to oil inspection plan Check operation

Working equipment

Quantity/ Number

2 2

1

Lubricate according to lubricating chart grease

Crawler unit Tread roller Track carrier roller Chain tension Front idler

Check for leaks and free rotation Check for leaks and free rotation Check Visual inspection for leaks

Swing ring Bearing

Grease / check grease filling Grease according to lubricating chart - grease

Superstructure Tappet of pedal valve Tappet of control lever

Grease Grease

All lines, fittings and connections

Visual inspection for leaks

All articulated joints and hinges

Grease / oil according to lubricating chart grease

1)

2904613

16 4 2 2

2x2 2x4

Not required for maintenance-free batteries

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OPERATOR’S MANUAL EC 350 Plan N - After first commissioning Component designation

Servicing activity

Quantity / Number

After 30 - 50 OH (once) Cooling system

Check coolant level

Fuel system Filter Filter

Replace Drain water

2 1

Air intake system Main filterelement Dust collector Suction and clean-air line

Check / clean Clean Check for tightness and leaks

1 1

Replace Check (NEW HOLLAND CONSTRUCTION dealer-service)

3

Hydraulic system Return-flow filter Operating pressure Travel gear unit Fastening screws

Change oil according to oil inspection plan Check tightness (torque wrench)

Swing gear Fastening screws

Change oil according to oil inspection plan Check tightness (torque wrench)

Crawler unit Crawler shoe fastening screws

Check tightness (torque wrench)

Swing ring Fastening screws

Check tightness (torque wrench)

Superstructure Ballast fastening screws

Check tightness (torque wrench)

All lines, fittings and connections

Check for tightness and leaks

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OPERATOR’S MANUAL EC 350 Plan T - every 10 OH or every working shift (whichever occurs first) Plan W - every 50 OH or weekly (whichever occurs first) Component designation

Servicing activity

Machine

Check the machine and its assemblies visually for defects, leaks and losses of consumables

•

•

Engine

Daily / weekly maintenance procedures as described in the "Engine operation and maintenance manual"

•

•

Cooling system Combinated radiator Fuel system Filter

Quantity / Plan Plan Number T W

•

Check / clean Drain water as described in the "Engine operation and maintenance manual"

1

Air intake system Main filterelement Dust collector Suction and clean-air line

Check / clean Clean Check for tightness and leaks

1 1

Electrical system Battery Lighting

Check acid level 1) Check operation

2

Monitoring, warning, and Check operation control elements Hydraulic system Oil reservoir Oil cooler

Working equipment

Lubricate according to lubricating chart - grease

Swing ring - bearing

Lubricate according to lubricating chart - grease

Crawler unit Tread roller Track carrier roller Crawler chain Front idler

Clean Check for leaks and free rotation Check for leaks and free rotation Check tension Visual inspection for leaks

All lines, fittings and con- Visual inspection for leaks nections

1)

• •

• • •

• •

• • • • • •

Visual inspection for leaks Check oil level according to oil inspection plan Check / clean

Swing gear Expansion reservoir Check oil level according to oil inspection plan S u p e r s t r u c t u r e h o l d i n g Check operation brake

Excavator

•

Overall cleaning

• • 16 4 2 2

• • • • • •

• • • • • • • • • • •

Not required for maintenance-free batteries

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OPERATOR’S MANUAL EC 350 Plan A - after every 250 OH or 6 months

Plan C - after every 1000 OH

(at 250, 750, 1250 ... OH)

(at 1000, 2000, 4000 ... OH)

Plan B - after every 500 OH

Plan D - after every 3000 OH

(at 500, 1500, 2500 ... OH)

(at 3000, 6000, 9000 ... OH)

Component designation

Servicing activity

Page 1 of 2

Quantity/ Plan Plan Plan Plan Number A B C D

Maintenance in accordance with W or T

•

•

•

•

Engine

Carry out all maintenance procedures listed and described in the "Engine operation and maintenance manual" Engine maintenance intervals are: 250 hours or 6 months 1500 hours 6000 hours or 2 years

•

•

•

•

Cooling system Radiator Coolant liquid lines

Visual inspection for leaks Check / clean Check for tightness and leaks

• • •

• • •

• • •

• • •

Air intake system Main filter element Safety filter element

Replace1) Replace1)

• •

• •

Fuel system Fuel filter Primary fuel filter Tank

Change Change Clean

• •

• •

• • •

• •

• •

• •

3 1

• •

• • •

2

•

•

• • • • • •

Electrical system Battery and cable connections Battery terminals Hydraulic system Return-flow filter Oil reservoir breather valve Operating pressure Oil reservoir

Line filter

• •

Check tightness Clean and grease with terminal grease Replace Replace Check (NEW HOLLAND CONSTRUCTION dealer-service) Change oil2) according to oil inspection plan Clean reservoir Replace

1)

Change filter element after 1 year at the latest

2)

Change hydraulic oil after 3 years at the latest

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135

OPERATOR’S MANUAL EC 350 Plan A - after every 250 OH or 6 months (at 250, 750, 1250 ... OH)

Plan C - after every 1000 OH (at 1000, 2000, 4000 ... OH)

Plan D - after every 3000 OH

Plan B - after every 500 OH

(at 3000, 6000, 9000 ... OH)

Page 2 of 2

(at 500, 1500, 2500 ... OH) Component designation

Servicing activity

Travel gear unit

Check oil level according to oil inspection plan Change oil according to oil inspection plan Check tightness (torque wrench)

Fastening screws Swing gear Fastening screws Crawler unit Front idler

Quantity/ Plan Plan Plan Plan Number A B C D

•

•

•

• • • • •

•

Change oil according to oil inspection plan Check tightness (torque wrench) Check oil level according to oil inspection plan Check tightness (torque wrench)

•

•

• •

• •

Fastening screws Pinion gearing

Check grease filling according to lubricating chart - grease Check tightness (torque wrench) Check condition

• • •

• • •

• • •

• • •

Superstructure Ballast fastening screws Pedal valve tappet Control lever valve tappet

Check tightness (torque wrench) Grease Grease

• • •

Heating Filter mat

Visual inspection for leaks Check / clean

• • • • •

• • • • •

• • • • •

Driver’s cab Fastening screws

Check tightness

• •

• •

• •

Crawler shoe fastening screws Swing ring

All articulated joints and hinges

136

Grease / oil

2x2 2x4

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137

OPERATOR’S MANUAL EC 350 LUBRICATING CHART - GREASE

= Operating hours

2904425

Fig. 1

138

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OPERATOR’S MANUAL EC 350 Lubricating chart - Grease (Key to Fig. 1) Pos. Greasing point

Number

1

Stick cylinder bearing Backhoe cylinder bearing Stick bearing

1 1 2x1

2

Grease nipples - Stick cylinder bearing - Boom cylinder bearing - Bearing of monobloc boom / boom lower section2)

1 2x1 2x1

3

Boom cylinder bearing

2x1

4

Grease nipples2) - Boom-adjusting cylinder bearing - Stick cylinder bearing - Boom cylinder bearing - Boom cylinder bearing pin - Connecting pin - lower section of boom / upper section of boom

1 1 2x1 2x1 2x1

Lubricant properties

Greasing every .... operating hours 10 10 10 10

V

1)

5

Boom-adjusting cylinder bearing2)

6

7

10 10

1

10

Clamshell grab (optional equipment) - Joints - Gearing grab rotating device - Grab / stick bearing

10 1 2x1

10 10 10

Joints on toggle link and lever Backhoe cylinder bearing Backhoe / stick bearing

6 1 2x1

10 10 10

1) See section "LUBRICANTS" 2) Only for multi-position-boom (optional equipment) Working equipment from other manufacturers: Carry out inspection and servicing work according to manufacturer’s instructions.

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139

OPERATOR’S MANUAL EC 350 LUBRICATING CHART-GREASE

= Operating hours

2796944

Fig. 2

140

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OPERATOR’S MANUAL EC 350 Lubricating chart - Grease (Key to chart, Fig. 2) Pos.

1

2

Greasing point

Number

Swing ring - Grease filling of gearing

1

Swing ring - Bearing

2

Lubricant properties

Greasing every .... operating hours

V 1)

250

50

Filling quantities - grease Lubricating point, component

Inner gearing of swing ring (permanent grease filling)

Lubricant properties Refilling quantity in kg

V 1)

approx. 6.0

1) See section "LUBRICANTS"

Joints and hinges

2411970

Grease or oil all joints and hinges, e.g. on covers and flaps, in accordance with the inspection and servicing plan.

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141

OPERATOR’S MANUAL EC 350 INSPECTION PLAN - OIL

= Operating hours

2904610

Fig. 3

142

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OPERATOR’S MANUAL EC 350 Inspection plan - oil (Key to Fig. 3) Pos.

1) 2) 3) 4)

Component

Number

Lubricant properties1)

Check oil level every ... OH

Change oil every ... OH

II III I III

50

30004)

50

30002)

10

2503)

500

30002)

1

Hydraulic system

1

2

Swing gear

1

3

Engine

1

4

Travel gear unit

2

See section "LUBRICANTS" First after 30 - 50 OH Cf. "Engine operation and maintenance manual" Change hydraulic oil after 3 years at the latest

Filling quantities for oil change Component

Engine (incl. oil filter)

Filling quantity litres (gal)5) approx. 23 (6)

Hydraulic system Hydraulic tank

approx. 560 (148.4) approx. 370 (98)

Swing gear

approx. 4.5 (1.2)

Travel gear unit

2 x approx. 6 (2 x 1.59)

Front idler (repair only)

2 x approx. 0.4 (2 x 0.1)

Track carrier roller (repair only)

4 x approx. 0.2 (4 x 0.05)

Tread roller (repair only)

16 x approx. 0.35 (16 x 0.09)

Other filling quantities Component

Cooling system Fuel tank Windscreen washing system 5)

Filling quantity litres (gal)5) approx. 42 (11.1) approx. 600 (158.7) approx. 1.5 (0.4)

The listed quantities of consumables are approximate data designed to act as a guide. Each unit has appropriate control devices, e.g. dipstick, inspection glass or control plugs, with which the exact filling is checked.

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143

OPERATOR’S MANUAL EC 350 LUBRICANTS

I.

API:

Oils for internal combustion engines

2732720

American Petroleum Institute Engine pre-heating necessary. Cold-starting aid may be sufficient in upper range. Follow with a warming-up phase. When warming-up, increase engine speed and loading gradually.

When using single-range or other multi-range motor oils, and at temperatures lower than those stated, the oil recommendations of the engine manufacturer are to be observed. For directions, see engine instruction manual.

144

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OPERATOR’S MANUAL EC 350

II.

Oils for hydraulic system, mineral

2732721

Warming-up phase necessary before commencing operation.

Warm-up hydraulic system for approx. 10 minutes, running at half speed and with repeated.

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145

OPERATOR’S MANUAL EC 350

III.

Oils for gearboxes

2732722

API:

American Petroleum Institute

MIL:

US armed forces fuel specifications for engine and machine manufacturers

146

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OPERATOR’S MANUAL EC 350 SERVICING

2411336

Draining hose for oil changes

Collect escaping oil and evacuate it without polluting the environment.

Carry out oil changes when the engine is at operating temperature; warm oil drains away more easily.

The engine, hydraulic oil reservoir and gearboxes may be equipped with special oil drain valves (1, Fig. 1).

These plugs permit to perform oil changes in a clean and non-polluting way.

Fig. 1

Carry out oil changes as follows: - Place a recipient for waste oil under the drain opening (for the capacity see under "Filling quantities").

- Choose the proper drain hose from the tool kit.

- Unscrew protective cap from oil drain valve.

- Screw on drain hose (2); the valve opens and the oil drains away.

- After the oil has drained away unscrew drain hose; the valve closes automatically.

- Screw protective cap back in place.

148

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OPERATOR’S MANUAL EC 350 ENGINE 2411971 Engine, safety instructions for inspection and servicing

Risk of injury from rotating fan blades and running V-belts.

2732717

For more detailled informations about engine maintenance see also: "Engine operation and maintenance manual".

Switch off the engine before opening the engine compartment.

Risk of burning due to hot parts on engine, exhaust and radiator.

Never begin servicing and repair work until engine, exhaust and radiator have cooled down.

Wear working gloves.

Secure the machine as described in the section "Securing the machine".

Read and observe: "Inspection and Servicing, Safety Instructions" and the operating instructions for the engine.

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149

OPERATOR’S MANUAL EC 350 Checking the engine oil level / topping up with oil

2732733

• Park machine on a horizontal surface and secure against inadvertent movements.

• Withdraw dipstick (Fig. 1) and wipe clean with a clean, lint-free cloth and re-insert.

• Wait at least 5 minutes after shutting off the engine to check the lubricating oil. This allows time for the lubricating oil to drain to the oil pan.

• Draw out oil dipstick once again, check the oil level and top up oil through the filler tube (Fig. 2) up to the "max" mark (Fig. 1) (oil quality cf. "LUBRICANTS").

Fig. 1

Fig. 2

If the oil level is just above the "min" mark (Fig. 1), the oil level must be topped up.

The oil level must not drop below the "min" mark and must not raise above the "max" mark.

150

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OPERATOR’S MANUAL EC 350 Checking the drive belts

2732895

Risk of injury from rotating fan blades and running V-belts.

Switch off the engine before opening the engine compartment.

Checking the coolant level

2732736

Danger of scalding due to hot coolant Therefore only screw off the cap of the cooling system when the engine is cold and at a standstill.

Risk of burning due to hot parts on engine, exhaust and radiator.

Never begin servicing and repair work until engine, exhaust and radiator have cooled down.

• Open engine compartment.

Fig. 4

Fig. 3

• Visually inspect the belts.

• Check the belts for intersecting cracks.

Transverse cracks (1, Fig. 3) are acceptable.

Cracks in direction of belt length that intersect with traverse cracks are not acceptable (2).

• Replace belt if it is frayed or has pieces of material missing.

For more information about adjustment and replacement see: "Engine operation and maintenance manual".

An insufficient coolant reserve is indicated by warning lamp (37) on the control panel. In spite of this warning facility, the coolant level must be checked at least once every week to detect losses of coolant and to prevent any consequential damage.

• Open the cover of the engine compartment.

• Unscrew cap (Fig. 4) on filler tube cautiously by one half turn to allow overpressure to escape from the system.

Unscrew completely only after the system is fully depressurized.

The coolant must reach up to the lower edge of the filler tube. Top up system with coolant, if necessary.

(Type and mixing ratio see engine operating instructions).

• Screw cap back in place.

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151

OPERATOR’S MANUAL EC 350 AIR-INTAKE SYSTEM

2472228

Emptying the dust collector

2801571

The dust collector collects all dirt particles that may have penetrated into the air filter housing.

Risk of injury caused by hot or rotating parts of the engine.

Shut off engine before working on the air-intake system.

Read and observe the section "Engine Safety instructions".

Never start engine when parts of the airintake system have been detached.

Engine damage may occur if the engine is allowed to draw in unfiltered air.

Fig. 1

• To remove dirt, squeeze the mouthpiece together several times.

• Loose dirt falls down to the ground.

152

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OPERATOR’S MANUAL EC 350 Removing, checking, and cleaning the main filter element The warning lamp "Air intake system" (14, Fig. 2) lits up when the main filter element must be serviced.

2904611

• Unsnap clamps (Fig. 3) and remove cover.

• Draw filter element (Fig. 4) carefully out of the air filter housing.

If this is the case, the main filter element is so badly contaminated that it no longer allows an adequate volume of air through.

Fig. 4

Fig. 2

• The safety filter element (Fig. 5) remains installed.

• Screw out holding screws of the flap in front of the air filter.

Fig. 5

Fig. 3

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153

OPERATOR’S MANUAL EC 350 • Clean the filter element using compressed air at max. 6 bar (87 psi). Insert the ompressed air nozzle (Fig. 6) and hold it approx. 3 cm (1.18") from the paper.

Never clean filter element by beating against hard objects to avoid damage.

• The main filter element must replaced once it has been cleaned three times, and at the latest after one year operating time.

Fig. 6

• Carry out a visual inspection: - Put a lamp into the filter element.

Emission of light indicates damaged locations (Fig. 7).

- The filter element must not be deformed.

- The rubber seals of the filter element must not be damaged.

Fig. 7

If damage is present the filter element must not be reinstalled.

• Clean interior of air filter housing and cover.

• Install checked and cleaned filter element or new filter element.

• Install cover.

• Press reset button of vacuum meter (Fig. 2).

The indicator changes from red to green.

154

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OPERATOR’S MANUAL EC 350 Checking / replacing the safety filter element

Checking air intake lines 2800865

Never start engine when the safety filter element has been removed.

The engine may be damaged if it is allowed to draw in unfiltered air.

2472232

The engine must not be allowed to take in unfiltered air. Therefore: • Check all hoses and pipes for leaks.

• Check that all clamps are in position and secure.

Replace damaged parts immediately (or have them replaced).

• The main filter element must be removed before the safety filter element (Fig. 8) is accessible.

Fig. 8

• Check if safety filter element is clean.

Do not clean the safety element, but always replace when it is contaminated.

Change safety filter element after 3 cleanings of the main filer element or after 1 year of operation at the latest.

• Clean air-filter housing and lid thoroughly inside, using a vacuum cleaner.

• Install new safety filter element if necessary.

• Re-install main filer element.

• Re-install cover of filter housing.

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155

OPERATOR’S MANUAL EC 350 FUEL SYSTEM

2413740

Fuel system - Safety instructions

When working on the fuel system: - switch off engine and additional heating system, - secure machine, - no exposed flames, - no smoking.

The risk of contamination of the fuel system increases if the machine is often or regularly refuelled with fuel from canisters or barrels.

Collect any escaping fuel and dispose of it in an environmentally friendly manner.

The fuel filter must be changed at shorter intervals.

In this case the primary fuel filter must be drained and cleaned more often than indicated in the servicing plan.

Diesel fuel can cause damage to skin.

Therefore, wear protective gloves or use a protective cream.

Dispose of filter in an environmentally responsible manner and separate from other waste.

156

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OPERATOR’S MANUAL EC 350 Fuel filter - draining water

Fuel filter, change

2904612

2904404

• Unscrew fuel filter cartridge (Fig. 1).

• Clean sealing face at filter head.

Read and observe: "Fuel system - Safety instructions".

• Fill new filter cartridge with fresh fuel.

• Lightly oil seal of new fuel filter cartridge.

The filters are attached in the pump compartment (Fig. 1).

• Screw on new fuel filter cartridge until seal sits close. Then tighten fingertight.

• Remove the covering below the pump compartment.

• After an interval check for leaks at the connection between engine and fuel filter.

Primary fuel filter, change The primary fuel filter is installed in the fuel line.

This filter cannot be cleaned. The filter must therefore be replaced in acc. with the servicing plan.

Bleeding the fuel system • The fuel system is bled automatically during operation.

Fig. 1

• Hold a collecting vessel for the draining water under the filter housing.

• Screw out the draining valve, the water drains out.

• Screw in the draining valve when clear fuel is draining out.

Check that the filter housing is sealed.

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157

OPERATOR’S MANUAL EC 350 Cleaning the fuel tank

2796948

• Unscrew cap of filler opening (Fig. 4).

• Remove gauze inset.

Explosion hazard Never use white spirit, paraffin oil or other solvents to clean the tank.

Readily flammable, explosive gases are formed.

So use only diesel fuel or special cleaning oil to clean the tank.

Observe the instructions for use issued by the manufacturer of the cleaning oil.

• Clean tank with cleaning equipment and flush out.

• Screw drain plug back in place.

• Install covering plate.

• Fit gauze inset into filler opening.

• Fill in fuel through gauze inset in filler opening.

Fuel and cleaning oil must be prevented from penetrating into the soil.

Store for re-use or discard without polluting the environment.

• Use up as much fuel as possible.

• Check how much fuel is left in the tank and place a sufficiently large collecting vessel under the drain plug of the tank.

Fig. 3

• Remove covering plate below fuel tank.

• Unscrew drain plug on underside of fuel tank (Fig. 3) and drain off fuel.

• Place a collecting vessel under the drain plug to catch the cleaning fluid.

Fig. 2

158

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OPERATOR’S MANUAL EC 350 ELECTRICAL SYSTEM

2796464

Electrical system - Safety instructions

Risk of injury from battery acid and gases.

Wear goggles, protective gloves and sturdy working clothing.

Alternator - instructions

2801363

Never disconnect electrical connections on the alternator, regulator and battery when the engine is running.

This would damage the alternator and regulator.

Prior to working on the electrical system Shut off the engine.

Prior to working on the electrical system, where tools, spare parts etc. may come into contact with electric cables or contacts, switch off the battery main switch or disconnect the batteries.

Disconnect first the negative, then the positive pole.

After work: Connect first the positive, then the negative pole.

Read and observe "Inspection and Servicing - Safety instructions".

Always use a measuring instrument for voltage and continuity testing.

Never use a "test lamp".

Never "tap against ground".

This causes a short circuit with consequent damage to the generator or to the electronics of the PCS.

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When connecting the batteries, never interchange the cables (pay attention to polarity).

Always use measuring instrument for voltage and continuity testing.

Never use a "test lamp".

Never "tap against ground".

This causes a short circuit with consequent damage to the alternator and regulator.

When the engine is started, the alternator is pre-excited by an electronic circuit.

This circuit ensures that the alternator can supply power.

The circuit is part of the Central Electronic System in the control panel.

An LED in the control panel (charge control) indicates the correct functioning of the alternator. This LED must light up when the keyswitch is turned to the "ON" position. It goes out when the engine is running. If this is not the case, either the alternator circuit or the control panel are defective.

To prevent further damage, the cause of the fault must be located and rectified as fast as possible.

Contact your nearest NEW HOLLAND CONSTRUCTION dealer.

159

OPERATOR’S MANUAL EC 350 Battery main switch

2796460

The battery main switch is installed in the battery compartment beside the batteries (Fig. 1).

Battery, checking

2732234

Battery - checking the fluid level (Not applicable to maintenance-free batteries) • Unscrew the caps.

• If checking inserts are installed, the battery fluid must reach the bottom of the inserts.

• If no checking inserts are installed, insert a clean piece of wood into the battery down to the top of the plate. The wood must be wet over at least 10 mm (0.39").

• If the fluid level is too low, top up with distilled water only.

Battery - checking the charge Fig. 1

The acid temperature should be 20˚C (68˚F).

If the switch lever is set to OFF, the main switch disconnects the negative pole of the battery from the vehicle chassis so that the electrical system of the machine is without tension.

• Unscrew the battery caps (Fig. 2).

In the OFF position, the lever of the battery main switch can be withdrawn.

• Measure the acid density of the battery with a standard test instrument (Fig. 2).

The acid density is in direct correlation with the battery charge.

Setting the battery main switch to OFF when the diesel engine is running may cause voltage spikes which can cause irreparable damage to electrical and electronic components.

For this reason: shut off the diesel engine before setting the battery main switch to OFF.

Fig. 2

Acid density in kg / dm3

160

Charge

Normal

Tropics

1.28

1.23

charged

1.20

1.12

half-charged, recharge

1.12

1.08

discharged, recharge at once

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OPERATOR’S MANUAL EC 350 Removing and installing the battery

2904402

• Switch off the main battery switch and withdraw the switch lever.

Switch off the engine before removing the batteries, to prevent damage to the alternator and regulator or to electronic components.

• Unscrew the battery holder (Fig. 3).

• Detach the pole terminal at the negative pole of the battery.

Set key-operated switch for electrical system to 0 and remove key.

• Disconnect cable bridge between batteries.

Detach and mount the pole terminals in the specified sequence.

• Detach the pole terminal at the positive pole of the battery.

The incorrect sequence may result in short circuiting.

• Insulate the pole terminals.

• Lift the battery out of the battery box.

Prior to installing the new battery, make the contact surfaces of the battery poles and the pole terminals bright.

• Install the new battery.

• Connect the pole terminal to the positive pole of the battery.

• Connect cable bridge between batteries.

Tighten the clamping screws of the pole terminals. Never use force when tightening the clamping screws, however, as this might result in damage.

Fig. 3

• Connect the pole terminal to the negative pole of the battery.

• Then coat battery poles and pole terminals with pole grease or non-acidic Vaseline.

Loose or corroded pole terminals overload the alternator and the regulator.

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161

OPERATOR’S MANUAL EC 350 HYDRAULIC SYSTEM

2472236

Hydraulic system - safety instructions

Depressurizing the hydraulic system 2796546

Read and observe: "Inspection and servicing - Safety instructions".

Before beginning work, the hydraulic system must be depressurized: - set working equipment on the ground

Before working on the hydraulic system, make sure the system has been depressurized and that any residual pressure has also been released.

- shut off engine

Switch off engine.

- Switch on the pilot control.

Secure the machine as described in the section "Securing the machine".

- Move the righthand or lefthand control lever to and fro (abt. six times).

Avoid skin contact with hydraulic oils.

Skin contact with hydraulic oils can damage health.

- Set the keyswitch of the electrical system to "0" (ignition OFF).

Wear gloves and protective clothing.

- Turn the keyswitch of the electrical system into position I (ignition ON).

- Switch off the pilot control. The left control console swings up.

Eliminate precharge pressure in hydraulic oil reservoir.

To do this unscrew the breather plug (Fig. 1) by approx. 3 turns.

The breather bore is then free and the precharge pressure is released (audible hiss), retighten breather plug.

Fig. 1

The residual pressures in the working equipment and the hydraulic pilot control are now relieved.

162

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OPERATOR’S MANUAL EC 350 Checking the hydraulic oil level

2732697

• Bring hydraulic oil to operating temperature (abt. 50˚C / 122˚F).

• Park machine on a horizontal surface.

Topping up with hydraulic oil

2716602

The hydraulic oil reservoir is at a charging pressure of approximately 0.3 bars (4.36 psi). This pressure must be relieved before the reservoir is opened.

• Bring all hydraulic cylinders to their center position.

• Shut off engine.

Fig. 3

Fig. 2

• Relieve charging pressure of reservoir as described in the "Depressurizing the hydraulic system" section.

The oil level must lie between the "min" and "max" marks of the inspection glass (Fig. 2).

• Remove four nuts (1, Figs. 3 and 4). Cover (2) is spring-loaded.

If the oil level has dropped to the "min" mark, hydraulic oil must be added.

Fig. 4

• Remove cover (2).

Do not lose spring (6, Fig. 4) and sealing ring (7).

• The return-flow filter is now visible in the filter chamber.

• Fill in hydraulic oil through this filter until the oil level is between the "min" and "max" marks of the inspection glass (oil grade cf. "LUBRICANTS").

• Before fitting cover (2), check sealing ring (7) and replace, if damaged.

• Fit cover with sealing ring and spring.

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163

OPERATOR’S MANUAL EC 350 Changing the hydraulic oil return-flow filters

Replacing the breather valve 2716603

The return-flow filters must be replaced: - at the servicing intervals in acc. with the servicing plan - when the "Hydraulic oil filter" warning lamp lights up with the hydraulic oil at operating temperature. In this case, the filter is heavily contaminated

2732698

The breather valve (Fig. 6) ensures aeration and deaeration of the hydraulic reservoir in case of hydraulic oil level fluctuations.

The valve maintains a charging reservoir pressure of approximately 0.3 bars (4.36 psi).

- after repairs on the hydraulic system.

• Reduce reservoir charging pressure as described in the "Depressurizing the hydraulic system" section.

• Remove covers (2, Fig. 5) as described in the "Topping up with hydraulic oil" section.

Fig. 6

The breather valve contains a filter element. This element cannot be replaced or cleaned.

The breather valve must therefore be replaced completely in acc. with the servicing plan.

Fig. 5

• Withdraw return-flow filters (5) from the filter compartment. The filters must be disposed of separately and without polluting the environment.

• Insert new filters.

• Fit covers (2) with new sealing ring (7) and spring (6).

164

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OPERATOR’S MANUAL EC 350 Changing line filters

2472340

The machine is equipped with one line filter for the feed pump of the swing pump and one for the pilot control (servo) circuit.

Change filters according to servicing plan.

The filter for the feed pump of the swing pump is installed in the engine compartment (Fig. 7).

Fig. 9 Fig. 7

The filter for the pilot control (servo) circuit is fitted in the frame behind the driver’s cab (Fig. 8).

• Remove housing (5, Fig. 9). Do not spill hydraulic oil.

• Remove filter element (4) from connection piece (1) by turning and pulling at the same time.

• Clean filter housing and sealing surfaces on the filter head.

• Install new O-rings (2 and 3). Oil lightly before installing.

• Press the new filter element onto the neck (1) with a turn.

• Screw filter housing into filter head.

• After putting the hydraulic system into operation, check that the filter housing does not leak.

Fig. 8

• Release residual pressure from hydraulic system, see section "Depressurizing hydraulic system".

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• Dispose of used filters in an environmentally responsible manner and separate from other waste.

165

OPERATOR’S MANUAL EC 350 Changing the hydraulic oil

2472243

Draining hydraulic oil

2801528

• Operate hydraulic oil to operating temperature (approx. 50˚C / 122˚F).

Danger of scalding due to hot hydraulic oil!

Avoid skin contact with hydraulic oil.

Wear working gloves.

Collect draining oil and dispose of it in an environmentally friendly manner.

Secure the machine against unauthorized operation as described in the section "Securing the machine".

• Park the machine on a horizontal surface.

• Retract hydraulic cylinders as far as possible and set working equipment down on the ground.

• Switch off engine.

• Release tank charging pressure as described in section "Depressurizing the hydraulic system".

Read and observe: "Inspection and servicing - Safety instructions".

Do not start the drive engine when the hydraulic oil reservoir is empty!

Dry operation can damage the hydraulic pumps.

Fig. 10

• Remove covering plate below the hydraulic oil reservoir.

• Place a collecting vessel under the oil drain neck of the hydraulic oil reservoir (Fig. 10).

For required capacity see "Filling quantities for oil change".

• Drain the hydraulic oil using the oil drain hose.

Use of the oil drain hose is described in the section "Draining hose for oil change".

• Clean the hydraulic reservoir.

166

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OPERATOR’S MANUAL EC 350 Cleaning the hydraulic oil reservoir

2904403

Renew sealing cord Attach cover with new sealing cord as follows:

Danger of explosion Therefore do not use petroleum ether, paraffine oil or other solvents to clean the reservoir.

They form easily flammable explosive gases.

Therefore use only hydraulic oil or a special cleaning oil to clean and flush the reservoir.

Observe the instructions for application from the cleaning oil manufacturer.

- Clean sealing surfaces and place new sealing cord inside the ring of bolts (round each bolt) (Fig. 12).

- Cross the ends of the sealing cord and place close to one of the bolts.

- Position cover and tighten nuts alternately with a torque of MA = 49 Nm (36.1 lbft).

The sealing cord is made of PTFE material (e.g.

Teflon) with the designation PAM-O-PACK 4RD RD TYP 1. It is supplied by the NEW HOLLAND CONSTRUCTION Spare-Parts Service.

Do not allow hydraulic oil or cleaning oil to escape into the ground.

Store for reuse or dispose of in an environmentally responsible manner.

• Drain hydraulic oil as described in section "Draining hydraulic oil".

• Release all nuts (1, Fig. 11) and remove cover (2).

Fig. 12

Filling with hydraulic oil

2472343

• Remove cover of return-flow filter, as described in section "Topping up hydraulic oil".

• Fill hydraulic oil to "max" mark in inspection glass.

(Filling quantities and oil grade see: "Filling quantities for oil change" and "LUBRICANTS").

Fig. 11

• Bleed the hydraulic system.

• Place collecting vessel for flushing oil under the hydraulic oil reservoir.

• Check oil level in hydraulic oil reservoir. Top up with oil if necessary.

• Clean inside of reservoir with hydraulic oil or flushing oil. Remove completely all deposits and residual cleaning agent.

• Renew sealing cord under cover (2) and attach cover.

• Attach covering plate below the hydraulic tank.

• Fill in hydraulic oil.

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167

OPERATOR’S MANUAL EC 350 Venting the hydraulic system

2801532

Catch escaping oil and discard without polluting the environment.

Hydraulic pumps, motors and cylinders must be carefully vented after oil changes.

Their intake and operating characteristics are otherwise seriously affected.

• Unscrew venting plug on hydraulic pump (Fig. 13).

Hydraulic oil flows out of the tank into the pump, forcing out the air.

Fig. 13

Screw venting plug back in place when bubblefree hydraulic oil emerges from the hole.

• Start up engine and run at moderate speed for about two minutes.

• Extend and retract all hydraulic cylinders repeatedly until the movements are executed smoothly.

• Swing superstructure repeatedly in both directions.

Venting procedures after repair work on other components of the hydraulic system (e.g. on other pumps or on valve assemblies) are more complex and require know-how which cannot be imparted in full within the scope of these Operating Instructions.

In cases of doubt or if questions arise, consult your NEW HOLLAND CONSTRUCTION dealerservice.

168

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OPERATOR’S MANUAL EC 350 Cleaning the combinated cooler

Danger of injury due to rotating fan blades and circulating V-belts!

Switch the engine off before opening the engine compartment.

Danger of burns due to hot parts at engine, exhaust, and coolers.

Do not start cleaning work until engine, exhaust, and coolers have cooled. Wear working gloves.

Wear safety goggles when working with compressed air.

2732875

The combinated cooler (Fig. 14) contains cooling elements for hydraulic oil (right) and engine cooling liquid (left).

• Open covers at the left side of superstructure and under the engine compartment.

The combinated cooler is then accessible (Fig. 14).

• Wipe off all dirt from cooling gills.

Remove retaining dirt with compressed air or water, blowing from the fan side.

Clean cooler from top to bottom.

• Remove released dirt from cooler area.

If the machine is operated at locations with heavily contaminated ambient air the hydraulic oil cooler must be cleaned more often than indicated in the servicing plan.

Do not use abrasive or hard pointed tools for cleaning work such as wire brushes, scrapers or screwdrivers.

They could damage the cooling gills.

Fig. 14

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169

OPERATOR’S MANUAL EC 350 SWING GEAR

2732711

Swing gear - checking oil level

Read and observe: "Inspection and servicing - Safety instructions".

• Switch machine off as described in section "Securing the machine".

• Open engine compartment.

• Unscrew cap (red) of expansion reservoir (Fig. 1).

Swing gear - changing oil

2904166

Danger of scalding due to hot gear oil!

Wear working gloves.

Collect draining oil and dispose of it in an environmentally friendly manner.

• Provide a collecting vessel for the waste oil.

For required capacity see: "Filling quantities for oil change".

• Unscrew caps of expansion reservoirs (Fig. 1).

• Twist off cap of drain neck (2, Fig. 2).

Fig. 1

• There must be 1 - 2 cm (0.39" - 0.79") of oil in the reservoir. Top up oil if necessary.

(Oil grade see: "LUBRICANTS").

Fig. 2

• Drain gear oil using an oil drain hose (1) of approx. 1 m (39") length.

Use of the oil drain hose is described in the section "Draining hose for oil change".

• Raise oil drain hose at swing gear.

• Fill new oil through oil drain hose until oil level in expansion reservoirs is 1 - 2 cm (0.39" 0.79").

(Filling quantity and oil grade see: "Filling quantities for oil change and LUBRICANTS").

• Remove oil drain hose.

• Screw on caps of expansion reservoirs.

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OPERATOR’S MANUAL EC 350 Superstructure holding brake - Function checking

2801365

• Start engine.

Read and observe: "Inspection and servicing - Safety instructions".

The superstructure holding brake is switched into the AUTOMATIC mode by the central electronic unit.

LED A above the key (28, Fig. 4) lights up.

The supertructure is braked when the swing control lever (78, Fig. 3) is not operated and the swing movement is completed.

• Activate pilot control using lever (77).

• If the swing motion control lever (78) is deflected, the superstructure holding brake is released and the superstructure is free to turn.

• Depress key (28, Fig. 4) until all LEDs are extinguished.

Fig. 3

The superstructure holding brake is released.

The superstructure swings freely even if the swing control lever (78, Fig. 3) is not operated.

• Depress key (28, Fig. 4) once. LED I lit up.

The superstructure holding brake is actuated.

The superstructure is braked. It must not be possible to slew it.

• Depress key (28) once again. LED A lit up.

The superstructure holding brake is switched to AUTOMATIC mode.

Inform NEW HOLLAND CONSTRUCTION Service if malfunctions occur in this system.

Fig. 4

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171

OPERATOR’S MANUAL EC 350 PIVOT CONNECTION

2411955

Pivot connection - Instructions

Gearing and bearings of the pivot connection must be inspected and re-greased at shorter intervals than specified in the servicing plan in the event of: - great heat, - high moisture levels, - exposure to dust and dirt, - marked temperature fluctuations, - continuous pivoting.

The grease packing of the gearing must be replaced when repairs have been carried out to the: - pivot connection, - sealing system or - housing of the pivot connection.

Fig. 1

• Unscrew cover (2).

Remove the used grease completely before replacing.

If major grease losses are noted, find the cause immediately to prevent damage to the pivot connection.

Grease the pivot connection additionally before and after extended down-times.

Dispose of grease and greasy cloths separately from other waste in the interests of environmental protection.

Fig. 2

• Check gearing and pinion for damage.

Swing ring - checking grease filling 2796962

Danger of injury Only swing superstructure when no one is in the swinging area.

• Check grease filling: All tooth faces must be covered with a thin grease film (Fig. 2).

If the grease film is o.k., add one cartridge full of grease (cf. "Swing ring - filling with grease").

The lubricating film is thus renewed and used grease is displaced into the housing.

If the grease film is not o.k., several cartridges of grease must be added.

Check the cause of grease loss and rectify.

• Screw cover (2, Fig. 1) back in place.

The gearing of the swing ring and the swing drive pinion are enclosed in a grease-filled housing (1, Fig. 1).

172

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OPERATOR’S MANUAL EC 350 Swing ring - filling grease

2796503

Swing ring - lubricating bearing

2472348

Danger of injury

Danger of injury

Only swing superstructure when no-one is in the swinging area.

Only swing superstructure when no-one is in the swinging area.

The gearing of the swing ring is filled with grease via the lubricating nipple (Fig. 3).

Lubricating nipples are fitted at the circumference of the swing ring (Fig. 4)

Fig. 3

Fig. 4

• Press the adapter of the grease gun on the lubricating nipple (Fig. 3).

Lubricate the bearing via the lubricating nipples:

- To regrease gearing, apply approx. a quarter of a grease cartridge.

Swing superstructure by 90˚. Now apply another quarter of the cartridge. Continue as described until the cartridge is empty.

- If the gearing requires a new grease filling, please see the "Filling quantities - grease" table for required grease quantity.

• Press filler element of grease gun on each lubricating nipple (Fig. 4) in turn.

• Inject grease a number of times in each lubricating nipple.

• Swing superstructure round slowly, a number of times. The grease is distributed evenly.

• Now swing the superstructure round slowly, a number of times. This ensures even distribution of the grease.

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173

OPERATOR’S MANUAL EC 350 Swing ring - checking tightness of screws

Lubricating the greasing nipples 2472349

2411349

Danger of injury

Read and observe section "Inspection and Servicing, Safety Instructions".

Only swing superstructure when no-one is in the swinging area.

Before starting lubrication: - Set extended working equipment down onto ground.

- Secure machine as described in section "Securing the machine".

The swing ring fastening screws at the superstructure and the undercarriage (Fig. 5) are tightened with a particular torque (see: "Tightening torques - Table").

Never discard greasy cleaning cloths but arrange for separate disposal.

Grease nipples on working equipment and chassis with a grease gun.

• Remove cap from greasing nipple.

• Clean greasing nipple.

• Press grease-gun filler onto greasing nipple.

• Now force in grease until the fresh grease forces the used grease out of the joints of the bearing.

Fig. 5

• Wipe off used grease with cleaning cloths.

Slacken loosened screws tightening them with a torque wrench at the prescribed torque (cf: "Tightening torques - Table").

• After greasing, fit the cap on the greasing nipple again.

174

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OPERATOR’S MANUAL EC 350 TRAVEL GEAR UNIT

2413744

Travel gear unit - checking oil level

Travel gear unit - changing oil

2486220

Read and observe: "Inspection and servicing - Safety instructions".

Read and observe: "Inspection and servicing - Safety instructions".

Danger of scalding due to hot gear oil!

Danger of scalding due to hot gear oil!

The gear unit housing may also be hot after travelling longer distances.

The gear unit housing may also be hot after travelling longer distances.

Wear working gloves and allow the gear unit to cool.

Wear working gloves and allow the gear unit to cool.

Collect draining oil and dispose of it in an environmentally friendly manner.

Collect draining oil and dispose of it in an environmentally friendly manner.

• Operate machine so that the travel gear unit is in the position indicated (Fig. 1).

• Operate machine so that the travel gear unit is in the position indicated (Fig. 1).

• Park the machine as described in the section "Securing the machine".

• Park the machine as described in the section "Securing the machine".

• Screw out inspection plug (Fig. 1). The oil level must reach the bore. If necessary, top up with gear oil through the bore. (Oil grade see: "Filling quantities for oil change".

• Provide a collecting vessel for waste oil under the travel gear unit. For required capacity see: "Filling quantities for oil change".

• Screw in inspection plug with new sealing ring.

• Screw out oil drain screw (2). The oil flows out.

• Screw in oil drain screw with a new sealing ring.

• Fill new gear oil through the inspection plug bore (1). The oil level must reach the bore.

(Filling quantities and oil grade see: "Filling quantities for oil change" and "LUBRICANTS").

• Screw in inspection plug with new sealing ring.

• Change the oil in travel gear unit of other crawler unit using the same procedure.

Fig. 1

• Check oil level in travel gear unit of other crawler unit using the same procedure.

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OPERATOR’S MANUAL EC 350 CRAWLER UNIT

2486221

Read and observe "Inspection and servicing - Safety instructions" before starting work on the crawler unit.

Cleaning the crawler unit

Checking tread rollers and track carrier 2486223 rollers

Read and observe "Inspection and servicing - Safety instructions" before starting work on the tread rollers and track carrier rollers.

Tread rollers and track carrier rollers require almost no servicing. But the following items must be checked in accordance with the servicing plan:

2486222

• Check free rotation Clean the crawler unit carefully. This prevents: - leakages at front idlers, tread rollers, and track carrier rollers, - excessive wear, - jumping off and breakage of crawler chain.

During travelling movements the tread rollers and track carrier rollers must rotate freely and easily.

If the roller operates with difficulty or is blocked it must be repaired immediately.

• Park the machine on a dry level surface.

• Swing superstructure 90˚ to undercarriage.

• Set working equipment down on the ground and raise the excavator at one side until the crawler unit is raised from the ground.

• Allow the crawler chain of the raised crawler unit to operate to remove coarse dirt.

Fig. 1

• Switch off engine and secure machine against unintentional starting.

• Check for leaks • Remove dirt from all crawler unit components using a strong water jet.

Clean particularly carefully: - spaces between crawler shoes, - tread and track carrier rollers, - space between front idler and crawler member, - space between driven wheel and crawler member, If dirt accumulates at these locations it can cause leakages, oil loss and thus damage to crawler unit components.

• Clean the other crawler unit using the same procedure.

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Leakages and associated oil losses are usually caused by dirt at the seals.

In this case the dirt must be removed carefully.

If the roller leaks: - Screw out screw plug (1) at indicated position. If required fill oil to bore (for oil grade and filling quantity see: "Filling quantities for oil change" and "LUBRICANTS").

- Screw the screw plug back in, with a new sealing ring. If the roller is still not sealed after careful cleaning it must be repaired.

• Tightness of fastening screws Use a torque wrench to tighten loosened fastening screws (2) (for tightening torque see "Tightening torques - Table".

177

OPERATOR’S MANUAL EC 350 Checking the front idler 2904427

Crawler shoes - checking tightness of 2486225 screws

Read and observe "Inspection and servicing - safety instructions" before starting work on the front idlers.

Read and observe "Inspection and servicing - safety instructions" before starting work on the crawler chain.

The front idlers require almost no servicing. But the following items must be checked in accordance with the servicing plan:

Check crawler shoe screws (Fig. 3) for tightness according to servicing plan.

• Check free rotation During travelling movements the front idlers must rotate freely and easily.

If the front idler operates with difficulty or is blocked it must be repaired immediately.

Loose crawler shoes wear quickly and can cause damage to the crawler unit.

Tighten loosened bolts using a torque wrench.

For tightening torques see "Tightening torques Table").

• Check for leaks Leakages and associated oil losses are usually caused by accumulated dirt between front idler and guide elements (arrow, Fig. 2). Dirt must therefore be removed carefully. If the front idler is still not sealed after careful cleaning it must be repaired.

Fig. 3

Fig. 2

• Check the oil level.

- Screw out screw plug (1, Fig. 2). The oil level must reach the bore.

If necessary, top up with oil to bore.

(For oil grade and filling quantity see: "Filling quantities for oil change" and "LUBRICANTS").

- Screw in screw plug with new sealing ring.

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OPERATOR’S MANUAL EC 350 Crawler chain - Checking tension

2732710

Read and observe "Inspection and servicing - Safety instructions" before starting work on the crawler chain and the chain tensioning device.

Tensioning the crawler chain

2904195

Read and observe "Inspection and servicing - Safety instructions" before starting work on the crawler chain and the chain tensioning device.

• Clean the crawler unit.

• Check the tension of the crawler chain.

• Drive the machine a distance of approx. twice the length of the crawler unit. The chain tensioning device can tension the crawler chain evenly.

• Clean filler valve of chain tensioning device (Fig. 5).

• Park the machine on a dry level surface.

• Place a flat board on the crawler chain between the track carrier rollers (Fig. 4).

Fig. 5

• Place filler element of grease gun on filler valve.

Inject grease until the crawler chain is correctly tensioned.

Fig. 4

• Measure the greatest distance between board and ridge of crawler shoe.

The measured value should be between 3 cm and 4 cm (1.18" and 1.57") (Fig. 4).

• Remove grease gun filler element. The filler valve closes automatically.

If the value is higher the crawler chain must be tensioned.

If the value is smaller the crawler chain tension must be released.

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179

OPERATOR’S MANUAL EC 350 Releasing crawler chain tension

2904027

Read and observe "Inspection and servicing - Safety instructions" before starting work on the crawler chain and the chain tensioning device.

Wear protective glasses.

The chain tension grease is under high pressure. Therefore, release the filler valve carefully.

The grease flows out into the crawler member. This prevents grease being ejected uncontrolledly.

Fig. 6

• Clean the crawler unit as described in section "Cleaning the crawler unit".

• Park the machine on a dry level surface.

• Place a ring spanner on the filler valve (Fig. 6).

• Screw out filler valve, maximum two rotations.

Grease from the chain tensioning device flows out at the thread of the filler valve.

The crawler chain tension has been released when grease no longer flows out of the filler valve and maximum crawler chain sag is present between the track carrier rollers, and between track carrier roller and driven wheel/front idler.

• Remove grease from crawler member and dispose of it in an environmentally responsible manner.

• Close filler valve securely.

• Tension crawler chain as described in section "Tensioning the crawler chain".

• Tension crawler chain of other crawler unit using the same procedure.

The sag of both crawler chains should be identical.

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OPERATOR’S MANUAL EC 350 WINDSCREEN WASHER

2904039

Machine shutdown

2732731

Topping up the wash fluid

Take the following measures if the machine is to be shut down for an extended period:

The reservoir must be filled with clean and clear water only to prevent clogging up of the screen washer nozzles.

• Park machine on firm, level ground.

For better cleaning of the windscreen, a commercial detergent can be added to the water.

During the cold season, a special antifreeze compound should also be mixed into the water. The mixing proportion should be chosen in compliance with the manufacturer’s recommendations.

• Set working equipment down on ground, retracting piston rods as far as possible.

• Bring all control elements to 0-position.

• Clean machine.

• Carry out visual inspection for leakages and damage and have repairs carried out.

• Protect all bright parts (such as piston rods) from rust and dirt with a grease coating.

• Engine preservation: Carry out all procedures according to the recommendations of the engine manufacturer.

• Remove battery/batteries; see section "Battery storage".

• Secure machine against unauthorized starting: - Remove key from key-operated switch.

- Lock securable windows.

- Lock cab door.

Fig. 1

• Depress lock button (1, Fig. 1) to swing the reservoir out of the seat pedestal.

- Secure all lockable flaps.

- Cover openings.

• Remove cap (2) and top up with wash fluid.

The reservoir contains ca. 1,5 l (0.34 gal) of fluid.

• Snap on cap and check that it fits tightly.

• Swing reservoir back into compartment and engage.

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181

OPERATOR’S MANUAL EC 350 Battery storage

Recommissioning

2732732

2801329

For extended outage periods (for longer than two weeks), remove battery / batteries and store on dry, well ventilated premises at ca. 20˚C (68˚F).

Observe following maintenance points: • Clean battery/batteries.

• Check acid density and battery fluid level once a fortnight.

• Charge batteries when acid density has fallen to 1.23 kg/dm3 or earlier.

• Keep battery / batteries clean and dry externally.

Prior to recommissioning after an extended outage period, observe the following points: • Engine recommissioning: Carry out all procedures according to the recommendations of the engine manufacturer.

• Check oil level in hydraulic tank.

• Check acid density and level of battery fluid.

• Install and connect battery/batteries.

• De-grease piston rods of hydraulic cylinders.

• For machines with main battery switch: Switch on main battery switch.

• Start up engine.

• Bring machine to travelling position and apply parking brake.

• Bleed hydraulic system.

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OPERATOR’S MANUAL EC 350 PART 4 - REPAIR WORK

Operating manual

2261179

Target group Operating personnel + Inspection and servicing personnel

Part 1 INTRODUCTION FUNDAMENTAL + SAFETY INSTRUCTIONSRepair personnel

Operating personnel

Part 2 OPERATION

The operating personnel must have knowhow relevant to the operation and the application of this or comparable machines.

Inspection and servicing personnel

Part 3 INSPECTION AND SERVICING

The inspection and servicing personnel must have know-how relevant to the inspection and servicing of this or comparable machines.

Repair personnel

Part 4 REPAIR WORK

Part 5 ANNEX

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The repair personnel must have know-how and experience relevant to the repair of this or comparable machines.

Operating personnel + Inspection and servicing personnel + Repair personnel

183

OPERATOR’S MANUAL EC 350

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OPERATOR’S MANUAL EC 350 Repair work - safety instructions

2801366

Operating instructions

Pressurized or spring loaded units

Never carry out repair work without having read and understood the operating instructions.

Never open defective pressurized or spring loaded units but replace them as an entirety.

Pay special attention to:

In exceptional cases, open only when the system and the operating sequence are precisely known and any special tools required are available.

"Fundamental Safety Instructions", "Inspection and servicing - safety instructions" and all warnings and safety instructions attached to the machine.

The descriptions of job sequences provide only experienced personnel with the necessary instructions.

The operating manual contains no information on this point.

The operating manual must be kept with the machine at all times.

Dismantling components

Repair personnel

Oils, greases, brake fluid or coolants may have a high temperature and result in burning or scalding.

Repair personnel must have know-how and experience relevant to repairing this or comparable machines.

Working at greater heights Always wear safety harnesses when working at greater heights.

Wear an approved safety harness; it must be equipped with stabilizers and safety cables.

Never dismantle while the machine is at operating temperature.

Leave time for the machine to cool down.

Before starting work, depressurize piping and hoses, cylinders, radiator, hydraulic tank, air-brake reservoir and other systems or units.

Replace defective components in good time to prevent major damage.

Clean the defective component carefully before dismantling it.

Mark the dismantled parts in the correct sequence to facilitate assembly.

When dismantling the component, close off exposed hose and piping connections, exposed drill holes and housing carefully to prevent any dust from penetrating.

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185

OPERATOR’S MANUAL EC 350 Accumulators, safety instructions 2801367

Never remove lead seals Never change rated pressure of pressure relief valves without the explicit authorization of NEW HOLLAND CONSTRUCTION. Never remove lead seals from pressure relief valves and accumulators.

After the repair work To prevent corrosion, coat all bright metal machine parts with a grease film.

On completing the work, reassemble all protective devices, covers, and soundand vibration-insulation material.

Never start up the driving motor while work is being done on the machine.

Check the repaired components and all machine functions with a trial run.

Never release the machine for recommissioning until it is fully functioning.

186

Accumulators are installed in the hydraulic system. These accumulators contain nitrogen under high initial pressure.

Wear safety goggles.

Even when the hydraulic pressure in the system is reduced, the nitrogen remains in the accumulator.

The accumulators are completely safe in operation. If incorrectly handled, however, there is a risk of explosion!

The accumulators installed in this machine should not be repaired. Defective accumulators have to be changed.

Never handle accumulator mechanically, never weld or solder it.

Prior to change the accumulator, always wear goggles and working gloves, depressurize the hydraulic part of the system.

Use only genuine NEW HOLLAND CONSTRUCTION-spare parts. In case of questions ask your NEW HOLLAND CONSTRUCTION-dealer.

Never remove or paint over warning and information plates, rating plates or type identification markings. Replace illegible or damaged plates immediately.

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OPERATOR’S MANUAL EC 350 ENGINE

2732231

Engine, repair instructions

Read and observe: "Repair, safety instructions" and operating instructions for engine before working on engine.

Risk of injury from rotating or hot engine parts!

Switch off engine and leave to cool down.

Do repair work only if machine is secured as described in section "Securing the machine" of these operating instructions.

Assisted starting (with jump-leads) - safety instructions

2472291

Explosion hazard Keep any potential ignition sources such as unshielded lights or burning cigarettes away from the batteries. The battery vapours are highly flammable.

Wear safety goggles.

Do not lean over the batteries when starting the machine from another vehicle.

Check and change V-belts only when engine is stationary.

Risk of injury from acid splashes and battery gases.

Repair work on the engine demands extensive know-how and special tools.

Never use assisted starting when the batteries are defective or frozen.

Never connect batteries (battery assemblies) unless they have the same voltage.

Use only tested jump-leads with insulated terminal clips and an adequate lead diameter.

Ensure that the bodies of the supplying and receiving machines are not in contact. Otherwise a current flow could result from connecting the positive poles. Risk of short-circuiting.

Never use welding generators or welding transformers as a source of current.

Position the jump-leads in such a way that they cannot be caught by rotating engine components.

Read and observe: "Inspection and servicing, safety instructions", paying particular attention to the section "Handling batteries".

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187

OPERATOR’S MANUAL EC 350 Assisted starting (with jumper cables)

2904015

Prior to assisted starting

Read and observe the section: "Assisted starting, safety instructions".

• Switch off all consumers at the receiving machine (empty batteries) and switch the keyoperated switch to 0.

• Switch off all consumers at the supplying machine (charged batteries) and switch off the engine.

Explosion hazard When the negative terminal is connected to ground, a strong current flows through the jumper cable. The sparks produced in the contact area can ignite the gases emanating from the discharged battery.

The negative terminal must therefore be connected to ground at a place as far away from the discharged batteries as possible.

Connecting the jumper cables Starting up the engines • Start up the engine of the supplying machine and run it at high speed.

• Start up the engine of the receiving machine. If the engine fails to start up after 15 seconds, wait for one minute and then start up again.

• When the engine has started up, disconnect the jumper cables.

Disconnecting the jumper cables Fig. 1

• Negative pole at receiving machine (4)

• Connect the red jumper cable to the positive pole of the empty battery (1), then to the positive pole of the charged battery (2).

• Negative pole at supplying machine (3)

• Connect the black jumper cable first to the negative terminal of the booster battery (3) and then to a bare-metal part of the machine (4).

• Positive pole at receiving machine (1)

188

• Positive pole at supplying machine (2)

Have the electrical system of the machine checked to determine why the batteries were discharged.

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OPERATOR’S MANUAL EC 350 FUSES Checking / replacing the fuses

Shut off engine and set key-switch to 0 before removing the fuses.

Defective fuses must be replaced only by fuses of the same rating.

The fuses are located on a special board in the lower part of the control panel.

2904162

If an electric function is interrupted, check first the fuse concerned: • Withdraw fuse from holder and check.

A tool is located in the fuse box (Fig. 2).

• In most cases a blown fuse wire can be found out by visual inspection (Fig. 3). In case of doubt check fuse with an ohmmetre or replace right away by a new one.

• If the fuse is defective, insert a new one with the same rating.

• If the fuse is o.k check electrical components connectors and cables (or have them checked).

Fig. 1

• Unscrew cover plate (Fig. 1)

Fig. 3

• Unsnap cover above fuse box. Remove transparent cap of fuse box by opening the two lateral clips.

The fuses are then accessible. (Fig. 2). The circuits protected and the fuse currents are set out in the "Table of fuses".

Fig. 2

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189

OPERATOR’S MANUAL EC 350 Table of fuses

2904196

F1

10 A

Driver’s cab - interior lamp; diagnosis outlet PCS; 24V - 12V transformer (for radio and cool box)

F2

5A

Cooling agent level switch; multiple disk brake swing initiator; pressure sensor 0 - 400 bar; fuel tank sensor

F3

5A

Load-limit regulator (PCS)

F4

10 A

Screen-wiper motor; compressor for special driver’s seat (optional equipment)

F5

15 A

Central electronic unit

F6

5A

Free for optional equipment

F7

5A

Free for optional equipment

F8

5A

Free for optional equipment

F9

5A

Pilot control solenoid; pump governing solenoid

F 10

5A

Solenoids grab rotation mechanism (optional equipment)

F 11

5A

Free for optional equipment

F 12

5A

Free for optional equipment

F 13

15 A

Refuelling system (optional equipment)

F 15

10 A

Pressure switch and solenoids for special hydraulic circuit "Lowering boom"; optional equipments: working floodlamps, rotary beacon

F 16

5A

Pressure switch and horn travel alarm; solenoid coupling air conditioning system (optional equipment)

F 20

10 A

Solenoid cold starting aid

F 33

7,5 A

In fead line to 24V - 12V transformer (for radio and cool box)

F 1.7

25 A

Solenoid engine stop

F M2

10 A

Fan

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OPERATOR’S MANUAL EC 350 BULBS

2732217

Replacing the bulbs - Notes

Replacing the bulb in the cab interior 2472270 lamp

Replace defective bulbs only by bulbs with the same rating.

Before installing a new bulb: Remove all traces of corrosion from the lamp holder and the electrical contacts.

This helps to avoid contact problems and high contact resistance.

Do not touch the new bulb with bare fingers. Sweat and dirt will evaporate and burn in when the lamp heats up and may reduce the service life of the lamp and the reflector. Therfore, put a clean rag or a piece of packing around the lamp before inserting it into the holder.

Fig. 1

• Snap off lamp cover (Fig. 1) and withdraw.

• The bulbs in the lamp are now accessible and can be replaced.

• Snap on cover.

Bulbs - Table Headlamp Floodlamps Cab inerior lamp

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2486248

55/50W/24V 70W/24V 10W/24V

191

OPERATOR’S MANUAL EC 350 Replacing the bulb of the boom floodlamp

2472273

Replacing the bulb of the floodlamp on 2472272 driver’s cab (optional equipment)

Fig. 2

Fig. 4

• Unscrew fastening screw of lamp cover (Fig. 2).

Remove lamp cover.

• Remove floodlamp on driver’s cab roof (Fig. 4).

Fig. 3

• Snap back spring clip of bulb (Fig. 3).

- Replace bulb.

• Refit lamp cover by tightening the screw.

Fig. 5

• Snap back spring clip of bulb (Fig. 5).

- Replace bulb.

• Refit floodlamp.

192

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OPERATOR’S MANUAL EC 350 Working equipment - replacing a tooth

2413674

Read and observe the section on "Fitting of working equipment - Safety instructions".

Secure the machine (cf. "Securing the machine").

Nobody must stand in the direction of the ejected safety latch and tooth.

The safety latch or the tooth can suddenly be ejected when driven out and hit persons.

Metal splinters may cause injury.

Fig. 2

Wear your personal protective equipment and goggles.

• Clean inside of housing and remove dirt and corrosion.

• Drive out tooth safety latch (1, Fig. 1) using a piece of smooth metal or of hard wood.

• Insert new tooth (3, Fig. 3) into housing (4).

The tooth must be in contact with the housing (arrow, Fig. 4).

Fig. 1

Fig. 3

• Drive tooth (3, Fig. 2) out of housing (4) using a piece of smooth metal or of hard wood.

• Drive in new safety latch (1, Fig. 4).

The latch can be driven into the housing from either side.

Fig. 4

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193

OPERATOR’S MANUAL EC 350 Clamshell, Wear Limits

2732229

To enable the wear status to be checked, new clamshells are marked at the factory (Fig. 5): Wearing parts of the clamshell are made of high-grade alloyed steels.

When repairs are done by welding on new parts, special procedures must be observed.

- with prick-punching on the guide rail (1), - and with a chisel mark on the cylinder guide (2).

Repairs should therefore be carried out only by trained personnel with appropriate equipment.

If the natural wear on clamshell cutters and stops exceeds an admissible limit, the clamshell cylinder may be damaged. The admissible stroke of the clamshell cylinder is then exceeded, and there is an impact between piston and cylinder tube in the limit positions.

Fig. 5

The clamshell must be repaired before the marking on the cylinder guide (2) is at the same level as one of the markings on the guide rail (1).

The lower marking (1) indicates the wear on the clamshell cutters, and the top marking the wear on the clamshell stops.

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OPERATOR’S MANUAL EC 350 PART 5 - ANNEX

Operating manual

2261969

Target group Operating personnel + Inspection and servicing personnel

Part 1 INTRODUCTION FUNDAMENTAL + SAFETY INSTRUCTIONSRepair personnel

Operating personnel

Part 2 OPERATION

The operating personnel must have knowhow relevant to the operation and the application of this or comparable machines.

Inspection and servicing personnel

Part 3 INSPECTION AND SERVICING

The inspection and servicing personnel must have know-how relevant to the inspection and servicing of this or comparable machines.

Repair personnel

Part 4 REPAIR WORK

Part 5 ANNEX

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The repair personnel must have know-how and experience relevant to the repair of this or comparable machines.

Operating personnel + Inspection and servicing personnel + Repair personnel

195

OPERATOR’S MANUAL EC 350

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OPERATOR’S MANUAL EC 350 TROUBLESHOOTING Instructions on troubleshooting Faults are often due to the machine not being correctly operated or serviced.

For this reason, it is vital to read through the relevant section of the operating manual once again before rectifying any faults.

If you are unable to detect the cause of the fault or rectify it, apply to the NEW HOLLAND CONSTRUCTION dealer after-sales service.

Describe the fault and all accompanying circumstances as precisely as possible. Exact data allow for fast troubleshooting.

Never do any jobs for which you are not qualified.

This fault table lists all faults which have been reported to date and outlines their possible causes and rectifying measures. In exceptional cases, a described fault may also have a different cause.

2801369

Layout of the fault table Fault The fault is described here as the outcome of an observation or a previous activity.

Therefore make careful observations.

Study the problem carefully, First think, then act.

Ask yourself the following questions: - Which warning signals preceded the fault?

- What repair and servicing work was carried out previously?

- Has this defect already occurred?

- Is it one or several simultaneously occurring faults?

Possible causes The possible causes of the observed fault are outlined in this group. They are arranged in order of probability, i.e. the possible cause occurring in most cases heads the list.

Measure This describes the troubleshooting procedure.

Section This specifies where information on troubleshooting is given in the operating manual. If there is no entry, the NEW HOLLAND CONSTRUCTION after-sales service should be consulted.

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197

OPERATOR’S MANUAL EC 350 FAULT TABLES

2801540

Combustion engine fault table Fault Engine fails to start or starts only with difficulty Engine cannot be turned Engine starts, but runs unevenly or intermittently Engine gets too hot, temperature warning is activated

Remedial action Check Adjust Replace Top up Reduce Clean

P E W A S R

Engine power insufficient Engine not working on full cylinder capacity Engine without oil pressure or oil pressure too low

Engine oil consumption too high

NHC = contact the NEW HOLLAND CONSTRUCTION dealer Service

Engine emits blue smoke Engine emits white smoke Engine emits black smoke Engine cannot be shut off, pilot lamps extinguished Engine is choked heavily

• •

•

• • •• •• ••• • • • • • • • • • • • •• • • • • • • • • • • •••• • • • •• • •••• •• • •

198

Cause

Chapter reference

Temperature below limit starting temperature

Starting engine P

Oil level too low

Engine oil level A

Oil level too high

Engine oil level S

Inclination of engine too great

Engine OI

P

Wrong SAE class of engine oil

Lubricants

W

Fuel quality does not correspond to operating manual specification

Engine OI

W

Air filter contaminated/Turbo-charger defective

Air-intake sys.

P

Fuel filter contaminated

Fuel filter

P/W

Charge-air line leaks

P

Oil cooler/cooling fins dirty

Clean cooler

R

Cooler fan defective, belt broken or loose

Engine OI

P/W

Cooling-air heating/Heat build-up Battery defective or not charged

P Battery

Loose or corroded cable connectors in starter circuit

P

Starter defective or pinion not in engagement

P

Shut-off solenoid jamming Incorrect valve clearance setting

NH Engine OI

Leaks in injection line Injection valve defective

•

P

E P

Engine OI

P/W

Engine internally blocked

NHC

Combustion engine blocked at power output side

NH

PCS malfunction

NH

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OPERATOR’S MANUAL EC 350 Working hydraulics (incl. boom-adjusting and grab cylinder) fault table Fault Working and swing movements not operational Boom not operational Backhoe not operational Stick not operational

2801543

Remedial action Check Adjust Replace Top up Reduce Clean

P E W A S R

Boom-adjusting cylinder not operational Working movements too slow Power losses in working hydraulics Uncontrolled working movements

NHC = contact the NEW HOLLAND CONSTRUCTION dealer Service

Grab opens inadvertently Backhoe cylinder extends inadvertently during grab operation Grab opens and closes too slowly

• • ••••• • • • • •••• • • • • • • • • • • •

• • • • •

•

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• •

Cause

Chapter reference

Pilot control lever not in working position / defective

Working operation

P

Hydraulic oil level too low

Hydraulic oil

P/A

Malfunction in pressure limiting valve

NHC

Pilot control pump defective

NHC

Main pump drive coupling defective

NHC

Malfunction in primary/secondary pressure limiting valve

NHC

Engine speed too low

Working operation

P

PCS switch in position LIFT

Working operation

P

Fuel filter contaminated

Fuel filter

P/W

Engine lacks power

Engine malfunction

NHC

Hydraulic oil temperature too high (warning lamp lit, PCS fault code), oil cooler Clean hydraulic contaminated oil cooler

P/R

Engine cooling-agent temperature too high, warning lamp lit and PCS fault code

NHC

Malfunction of pilot control valve

NHC

Malfunction of control spool

NHC

Express coupling not completely open

P

Switch-over valve backhoe/grab operation not completely closed, internal leaks

Grab operation

P

199

OPERATOR’S MANUAL EC 350 Transmission fault table

2801372

Fault No forward travel, no reverse travel Left chain not operational Right chain not operational Max. travel speed not achieved Insufficient traction power Off-centre travel

Cause

Measure Check Adjust Replace Top up Reduce Clean

P E W A S R

NHC= contact NEW HOLLAND CONSTRUCTION dealer Service

Section

•

Pilot control lever not in working position / defective

Working operation

P

• • • • • • • •

Hydraulic oil level too low

Hydraulic oil

P/A

• • • •

• • • • • • • • • • • • • • • • •

NHC

Pilot control pump defective

NHC

Main pump drive coupling defective

NHC

Malfunction of primary pressure reducing valve pump 1/2

NHC

Malfunction of secondary pressure reducing valve (travel brake valve)

NHC

Malfunction of travel valves (pedal)

NHC

Crawler unit brake blocked, malfunction of travel brake valve

NHC

Malfunction of travel motor regulator

NHC

Malfunction of control spool

NHC

Insufficient engine power

Engine malfunction

NHC

•

Hydraulic oil temperature too high (warning lamp indicates, PCS fault codes indicates), fan drive defective, oil cooler contaminated

Clean hydraulic oil cooler

P

• •

Excessive oil leakage from travel motor

FA

Differing performance of pumps

FA

• • •

200

Malfunction of pilot control pressure limiting valve (linkage)

Differing chain tension

Crawler chain Checking tension

P/E

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OPERATOR’S MANUAL EC 350 Swing system fault table

2801373

Fault Swinging not operational Swinging left or right not operational Swinging power insufficient Inadvertent swinging movements Superstructure holding brake not operational

Cause

Measure Check Adjust Replace Top up Reduce Clean

P E W A S R

NHC= contact NEW HOLLAND CONSTRUCTION dealer Service Section

•

Pilot control lever not in working position / defective

Working operation

P

• •

Hydraulic oil level too low

Hydraulic oil

P/A

• • •

•

• • • • • • • •

•

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NHC

Pilot control pump defective

NHC

Main pump drive coupling defective

NHC

Malfunction of swing pump feeding circuit

NHC

Malfunction of swing system high pressure circuit

NHC

Malfunction of moment control valve

NHC

Malfunction of swing pump displacement variation (swing cylinder)

NHC

Excessive leakage in swing motor

NHC

Air in system after pump or hydraulic oil replacement, hose replacement

P

Superstructure holding brake blocked

• • • •

Pilot control pressure limiting valve (linkage) set too low / defective

Brake linings worn Fuse F2 defective

•

Superstructure holding brake

P P/W

Fuses

P/W

Solenoid valve defective

NHC

Speed sensor defective

NHC

201

OPERATOR’S MANUAL EC 350 Hammer operation (optional equipment) fault table Fault Hammer equipment not operational Hammer performance insufficient

2801374

Remedial action Check Adjust Replace Top up Reduce Clean

P E W A S R

NHC= contact the NEW HOLLAND CONSTRUCTION dealer Service Cause

•

•

202

Chapter reference

• •

Malfunction of hammer equipment pressure limiting valve

•

Hydraulic oil temperature too high (warning lamp lit, PCS fault code), oil Hydraulic oil P/R cooler contaminated cooler

•

Engine cooling-agent temperature too high, warning lamp lit and PCS fault code

•

Pilot control lever not in working position / defective

Working operation

• • • •

Hydraulic oil level too low

Hydraulic oil P/A

Engine speed too low

NH Hydraulic hammer

P

NHC

P

Malfunction of pilot control pressure limiting valve

NHC

Malfunction of primary control spool pressure limiting valve

NHC

Pump delivery rate insufficient or POWER-system not programmed for attached type of hammer

NHC

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OPERATOR’S MANUAL EC 350 Grab rotation circuit (optional equipment) fault table Fault Grab rotation circuit not operational Grab rotates too slowly Grab does not rotate at cylinder limit stops

2801375

Remedial action Check Adjust Replace Top up Reduce Clean

P E W A S R

NHC= contact the NEW HOLLAND CONSTRUCTION dealer Service Fault

• • • • • • • • • • • • • • • •

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Chapter reference

Grab rotating pump defective Hydraulic oil level too low

NHC Hydraulic oil P

Malfunction of grab-rotation pressure limiting valve Fuse F 10 defective

NHC Fuses

P

Pushbutton in control lever defective

NHC

Loose or corroded cable connections

P

Grab-rotation solenoid valve defective

NHC

Express couplings not completely open

P

Express couplings not opened

P

Grab rotating motor defective

NHC

Grab blades or limit stops show excessive wear

P

Pinion or swing ring defective

P

203

OPERATOR’S MANUAL EC 350 Table of fault codes The part of the electrical system used for controlling and monitoring the engine and the hydraulic system is permanently monitored by the central electronic control unit.

If a fault occurs, the working hours display (5, Fig. 1) shows a fault code and the word ERROR. The fault code is displayed alternately with the total number of hours run.

In individual cases, several faults may occur at the same time.

The corresponding fault codes are then displayed alternately with the total number of hours run (e.g: WORKING HOUR 2345 ERROR 02 WORKING HOUR 2345 ERROR 100 WORKING HOUR 2345 ...).

2801376

The following fault codes can be indicated: 02

100

8000

04

200

10000

08

400

20000

10

800

40000

20

1000

80000

40

2000

80

4000

You cannot rectify these faults yourself, as they require special testing equipment and expert knowledge.

Therefore, note the fault code and inform your nearest NEW HOLLAND CONSTRUCTION dealer.

Besides the fault code, the following information must be given to the NEW HOLLAND CONSTRUCTION specialist: - in which working situation did the fault occur?

- did the machine show a different behaviour?

- which indicator and warning lamps have lit up?

- was there any other information shown on the display?

- which were the external influences acting on the machine (such as great heat/cold, dust, permanent load over a longer period)?

Fig. 1

204

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OPERATOR’S MANUAL EC 350 Tightening torques

2732866

The screws and nuts used in this machine have an ISO metric thread.

If new screws or nuts are needed, they must have the same dimensions and be of the same grade as those replaced.

For tightening of screws and nuts please use tools with metric size indication of the width over flats only. The width-over-flats dimensions of the screws to be checked in compliance with the servicing schedules are set out in the following table.

The grade is indicated on the screw head or on the nut (e.g. 8.8, 10.9 or 12.9).

A table with all other width-over-flats dimensions can be found in the Technical Handbook.

Screw Thread size

Screw size Material grade Wrench size (mm)

MA Nm

Torque lbft

Tread roller

M 161)

12.9

24

360

265

Track carrier roller

M 161)

10.9

24

295

218

Crawler shoes

3/4" x 16 UNF1)

Grade 5

28

365

270

Travel gear unit

M 20 x 1.51)

10.9

30

750

553

Slewing ring - undercarriage - superstructure

M 201) M 201)

10.9 10.9

30 30

490 490

361 361

Counterweight

M 361)

10.9

55

3000

2213

Swing gear

M 161)

10.9

24

320

236

M 101) M 161) M 16 x 1.51) 3/4"-10

10.9 10.9 10.9 Grade 5

17 24 24 1 1/4"

60 250 270 325

44 184 199 240

Engine bearing

1)

lightly oiled

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OPERATOR’S MANUAL EC 350 ABBREVIATIONS A A A2 A4 abt. acc.

Ad. 1 Ah

Ampere (SI base unit of electric current) Four-wheel drive 2-point bracing (claws) 4-point bracing (claws) about according to with reference to 1 Ampere hours (SI base unit of quantity of electricity) API American Petroleum Institute approx. approximately bar Bh

unit of pressure measurement (1 bar = 14.5 psi) = OH = Operating hour

Communaute Européenne = European Community CECE Committee for European Construction Equipment (Defines a measure for bucket, grab, or scoop filling) CEN European Standardization Committee cf. refer to cm centimeter (= 1/100 m) 3 cm /rev Cubic centimeters per revolution cw clockwise ccw counterclockwise

2732218

i i.e.

IFN incl.

ISO kg kg/dm3 km/h kNm kW l lbft

CE

dB(A) dia.

DIN

Decibel (Sound intensity according to measuring method A) Diameter German Standardisation Organization

EDCV EDS eff. e.g. etc.

Electronic drive control (grader only) Electronic diagnostic system effective for example etcetera

fig.

FOPS

Figure, serial number of illustration Falling objects protective structures

gal GLR

gallon (1 gal = 3.78 litres) Full-load controller (electronic module for PCS)

HD HDS hp Hydr.

Heavy duty Heavy duty small Horsepower (1 hp = 0.7457 kW) Hydraulic, Hydraulics

206

Lb/in2 LC LDA LED l/min LpA LS LwA

m MA mA max. min. min-1 mm

Transmission ratio id est = that is ISO service rating, blocked including, inclusive of International Standardisation Organisation Kilogram (unit of weight) Kilograms per cubic decimeter ( = unit of specific density) Kilometers per hour KiloNewtons per meter (1 kNm = 1000 Nm) = unit of torque Kilowatt (1 kW = 1.36 hp) Liter pound foot (1 lbft = 1.356 Nm) (unit of torque) Pounds per square inch (= psi) Long crawler Charge pressure-dependent full-load limiter Light-emitting diode Liters per minute Sound pressure at workplace Limited slip Sound power level of the machine in stationary operation Meters Tightening torque Milliampere (= 1/1000 A) maximal, maximum minimal, minimum Revolutions per minute Millimeter (= 1/1000 m)

N NHC N, kN NLGI

Normal, standard version NEW HOLLAND CONSTRUCTION Newton, kiloNewton (unit of force) National Lubricating Grease Institute (USA) NLGI- Consistency - lubricant classification Klasse acc. to DIN 51 818 Nm Newtonmeter (unit of torque) No./Nos. number/numbers OH Operating hour OI Operating Instructions (op.inst.) Operating Instructions

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OPERATOR’S MANUAL EC 350 ABBREVIATIONS PCS

P/No. PS

Power Control System (Electronic unit for engine and hydraulic pumps management) Part number Metric horsepower (1 PS = 0.74 kW)

Qty.

Quantity

R, r resp.

ROPS rpm SAE sec.

SW t tm typ.

U/min

Radius Respectively Roll-over protective structures Revolutions per minute (= min-1) Society of Automotive Engineers (USA) Second Width across flats (hex head screws) Metric ton (= 1000 kg) Tons by meters (obsolescent unit of swing torque) Typical Revolutions per minute (= rpm)

V

Volt (unit of electric voltage)

W

Watt (unit of electric power)

o

o

Degrees Celsius (temperature) Degrees Fahrenheit (temperature) Degrees crank angle

> <

greater than less than

C F o kW

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OPERATOR’S MANUAL EC 350

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208

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OPERATOR’S MANUAL EC 350 INDEX

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OPERATOR’S MANUAL EC 350

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210

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A

Attaching and detaching the grab equipment Safety instructions .............................................. 90 Attaching the grab .............................................. 90

ABBREVIATIONS .................................... 206, 207 Automatic speed reduction ................................ 73 Accumulators, safety instructions .................... 186 Activate the horn ................................................ 81

B

Activate the Power assist function ...................... 81

Battery - checking the charge .......................... 160

Activate the Power Boost function ...................... 81

Battery - checking the fluid level ...................... 160

Activating overload warning system ................ 102

Battery main switch .......................................... 160

Activating the pilot control .................................. 74

Battery storage ................................................ 182

Adjusting the armrests ...................................... 111

Battery, checking .............................................. 160

Adjusting the backrest ...................................... 111

Before beginning work ........................................ 71

Adjusting the control console position ................ 31

Before Operation ................................................ 12

Adjusting the heating performance .................... 58

Bleeding the fuel system .................................. 157

Adjusting the lumbar support .................... 110, 112

Braking and stopping .......................................... 63

Adjusting the Mirrors .......................................... 32

Braking travelling movement .............................. 63

Adjusting the pneumatic suspension ................ 111

Bringing the machine to basic position .............. 62

Adjusting the seat cushion ................................ 111

BULBS .............................................................. 191

Adjustment of armrests ...................................... 30

Bulbs - Table .................................................... 191

Adjustment of backrest inclination ...................... 30 Adjustment of driver’s seat ................................ 30

C

Adjustment of seat position ................................ 30

Cab interior lamp - switching on and off ............ 35

Adjustment of seat suspension. .......................... 30

California, Proposition 65 Warning ...................... 9

After daily operation............................................ 87

Causes of strongly diverging pressure measurements ........................................................ 117

After travel operation .......................................... 67 Changing line filters .......................................... 165 Air conditioning systems for excavators .......... 113 Changing the hydraulic oil ................................ 166 AIR-INTAKE SYSTEM...................................... 152 Changing the hydraulic oil return-flow filters .... 164 Altering travelling speed .................................... 63 Checking / replacing the fuses ........................ 189 Alternator - instructions .................................... 159 Checking / replacing the safety filter element .. 155 Application of Voler A.C. .................................... 94 Checking air intake lines .................................. 155 Applying the superstructure holding brake ........ 77 Checking the coolant level ................................ 151 Assembling working equipment - safety instructions ........................................................ 88

Checking the drive belts .................................. 151

Assisted starting (with jumper cables) .............. 188

Checking the engine oil level / topping up with oil ...................................................................... 150

Assisted starting (with jump-leads) - safety instructions ...................................................... 187

Checking the front idler .................................... 178

Attaching and detaching the grab equipment .... 90

Checking the hydraulic oil level ........................ 163 Checking tread rollers and track carrier rollers 177

Clamshell, Wear Limits .................................... 194 Cleaning the combinated cooler ...................... 169 Cleaning the crawler unit .................................. 177 Cleaning the fuel tank ...................................... 158 Cleaning the hydraulic oil reservoir .................. 167 Climbing Up and Down ...................................... 28 Combustion engine fault table .......................... 198 Component numbers .......................................... 27 Connecting the jumper cables .......................... 188 Control elements (SAE-control) .......................... 48 Control panel ...................................................... 38 Control panel operating instructions .................. 37 Corrosion protection for pins and bearings (bushings and hubs) .......................................... 94 Crawler chain - Checking tension .................... 179 Crawler shoes - checking tightness of screws .. 178 CRAWLER UNIT .............................................. 177 Crawler unit brake .............................................. 25

D Deactivating overload warning system ............ 103 Defrosting the front and rear screens ................ 59

Driver’s seat with pneumatic suspension and integrated heating ............................................ 111 DRIVERS’S CAB ................................................ 28 DRIVING ............................................................ 60 Driving - Safety instructions ................................ 60

E Electric energy ...................................................... 8 Electrical system ................................................ 25 ELECTRICAL SYSTEM.................................... 159 Electrical system - Safety instructions .............. 159 Emergency exit .................................................. 33 Emptying the dust collector .............................. 152 ENGINE .................................................... 149, 187 Engine does not start.......................................... 57 Engine number .................................................. 27 Engine, repair instructions ................................ 187 Engine, safety instructions for inspection and servicing .......................................................... 149 Excavator load capacity.................................... 101 Extending and retracting stick ............................ 81 Extreme positioning of working equipment Instructions ........................................................ 71

Depressurizing the hydraulic system ................ 162 Description of control panel ................................ 36

F

Description of multi-position boom.................... 118

Fastening the retaining belt ................................ 61

DESCRIPTION OF THE MACHINE .................. 24

Fault.................................................................. 197

DESIGNATED USE .............................................. 4

FAULT TABLES .............................................. 198

Detaching / attaching the backhoe bucket .......... 93

Filling and emptying backhoe ............................ 81

Detaching the grab ............................................ 91

Filling quantities - grease .................................. 141

Disconnecting the jumper cables ...................... 188

Filling quantities for oil change ........................ 143

Display (key 18), function ................................ 120

Filling with hydraulic oil .................................... 167

Display, setting the contrast ............................ 122

Fore and aft adjustment of seat .......................... 30

Draining hose for oil changes .......................... 148

Fore-and-aft adjustment .................................. 111

Draining hydraulic oil ........................................ 166

Front window - Removing the lower part ............ 33

Drive - forward / reverse .................................... 64

Fuel filter - draining water ................................ 157

Driver’s seat - adjusting the lumbar support .... 110

Fuel filter, change ............................................ 157 FUEL SYSTEM ................................................ 156

Fuel system - Safety instructions ...................... 156

K

Function of overload warning system .............. 102

KEYBOARD, FURTHER FUNCTIONS ............ 119

FUSES.............................................................. 189

L G

Layout of the fault table .................................... 197

Gas, dust, steam and smoke ................................ 8

LIFTING-GEAR OPERATION .......................... 100

Gear mode.......................................................... 63

Lifting-gear operation - safety instructions ........ 100

General .............................................................. 10

Loading hook capacity ...................................... 101

Grab rotation circuit (optional equipment) fault table .................................................................. 203

Loading hooks on backhoe buckets and couplers .................................................................. 101

Greases for bearing points and swing rings .... 147

Location of controls .......................................... 113

Greasing the control valve tappets .................. 175

Lowering boom upper section .......................... 118

Greasing the pedal valve tappets .................... 175

LUBRICANTS .................................................. 144 LUBRICATING CHART - GREASE .................. 138

H

Lubricating chart - Grease ........................ 139, 141

Hammer operation (optional equipment) fault table .................................................................. 202

LUBRICATING CHART-GREASE .................... 140

Heating .............................................................. 58

Lubricating the greasing nipples ...................... 174

Hydraulic and pneumatic equipment .................... 9

M

HYDRAULIC HAMMER ...................................... 96 Machine layout .................................................. 25 Hydraulic system ................................................ 25 Machine number ................................................ 27 HYDRAULIC SYSTEM .................................... 162 Machine shutdown............................................ 181 Hydraulic system - safety instructions .............. 162 Measure............................................................ 197

I Immobilizer, deactivate / activate...................... 123

MONITORING-, WARNING- AND CONTROL ELEMENTS ........................................................ 36 Multi-position boom .......................................... 118

Immobilizer, entering the code............................ 54 INDEX .............................................................. 209

N

Inspection and servicing - safety instructions .. 127

Noise .................................................................... 9

Inspection and servicing plans - instructions .... 131 INSPECTION PLAN - OIL ................................ 142

O

Inspection plan - oil .......................................... 143

Oil, grease and other chemical substances .......... 9

Instructions on troubleshooting ........................ 197

Oils for gearboxes ............................................ 146 Oils for hydraulic system, mineral .................... 145

J

Oils for internal combustion engines ................ 144

Joints and hinges.............................................. 141

Opening / closing side window .......................... 33 Opening / Closing the Driver’s Cab Door............ 29 Opening and closing grab .................................. 81

Opening and Closing the Windscreen ................ 32

R

Operating Instructions ...................................... 113

Radio ................................................................ 107

Operating methods ............................................ 84

Raising and lowering boom ................................ 81

Operation - safety instructions ............................ 21

Raising boom upper section ............................ 118

OPTIONAL EQUIPMENT ................................ 105

Recommissioning ............................................ 182

Organizational measures...................................... 5

Refuelling............................................................ 52

Other filling quantities ...................................... 143

Refuelling system ............................................ 108

Overload warning system ................................ 102

Refuelling with the refuelling system ................ 109

P

Refuelling with the refuelling system, safety instructions ...................................................... 108

Parking brake / travel.......................................... 63

Refuelling, safety instructions ............................ 52

PART 1 - INTRODUCTION .................................. 1

Releasing crawler chain tension ...................... 180

PART 2 - OPERATION ...................................... 19

Releasing the superstructure holding brake ...... 77

PART 3 - INSPECTION AND SERVICING ...... 125

Removing and installing the battery.................. 161

PART 4 - REPAIR WORK ................................ 183

Removing, checking, and cleaning the main filter element .................................................... 153

PART 5 - ANNEX ............................................ 195 Part nos. for Voler A.C. ...................................... 94 Pipe-fracture safety system, function................ 104 PIVOT CONNECTION...................................... 172 Pivot connection - Instructions .......................... 172 Plan A - after every 250 OH or 6 months.......... 135

Renew sealing cord .......................................... 167 Repair work - safety instructions ...................... 185 Replacing the breather valve ............................ 164 Replacing the bulb in the cab interior lamp ...... 191 Replacing the bulb of the boom floodlamp ...... 192

Plan B - after every 500 OH.............................. 135

Replacing the bulb of the floodlamp on driver’s cab .................................................................... 192

Plan C - after every 1000 OH .......................... 135

Replacing the bulbs - Notes ............................ 191

Plan D - after every 3000 OH .......................... 135

Rolling out the Sunshade .................................. 34

Plan N - After first commissioning .................... 133

Rolling up the Sunshade .................................... 34

Plan T - every 10 OH or every working shift .... 134

Rotary beacon .................................................. 105

Plan V - Once before first commissioning ........ 132

Rotating grab ...................................................... 81

Plan W - every 50 OH or weekly ...................... 134 Possible causes................................................ 197

S

Power assist, function ........................................ 82

Safety instructions governing specific operational phases ...................................................... 6

Power Boost, function ........................................ 83 SAFETY PRECAUTIONS FOR OPERATION .... 10 PREFACE ............................................................ 3 SCRAP SHEARS .............................................. 98 Primary fuel filter, change ................................ 157 Section.............................................................. 197 Prior to assisted starting .................................. 188 Securing the machine ........................................ 89 Protective roof against falling objects ................ 89 Selecting direction of travel ................................ 62 Selecting the backhoe / grab equipment ............ 92

Selecting the PCS output stage .......................... 74

Swing superstructure to left ................................ 76

Selection and qualification of personnel - basic responsibilities ...................................................... 6

Swing superstructure to right .............................. 76

Service (key 16), function ................................ 119 SERVICING ...................................................... 148 Setting the time ................................................ 121 Shutting off the engine ........................................ 57 Shutting off the machine .................................... 87 SIGNS ................................................................ 27 Socket outlet in cab ............................................ 35

Swing system fault table .................................. 201 Swing; changing the mode of operation ............ 78 Switch rotary beacon OFF ................................ 105 Switch rotary beacon ON .................................. 105 Switching off floodlamps .................................... 72 Switching off the automatic speed reduction ...... 73 Switching off the hydraulic hammer .................... 97 Switching off the pilot control .............................. 75

Special work in conjunction with utilization of the machine - maintenance and repairs during operation - disposal of parts and consumables .... 7

Switching off the scrap shears ............................ 99

Standard operation .............................................. 6

Switching on the automatic speed reduction ...... 73

Starting and stopping the engine ........................ 55

Switching on the floodlamps .............................. 72

Starting the engine ............................................ 55 Starting the engine with cold-starting aid ............ 56

Switching on the floodlamps at the rear of the cab .................................................................... 106

Starting up the engines .................................... 188

Switching on the hydraulic hammer .................... 97

STARTING UP THE MACHINE .......................... 52

Switching on the scrap shears ............................ 99

Steering .............................................................. 25

Switching on the seat heating .......................... 112

Superstructure .................................................... 25

Switching the electrical system on and off .......... 53

Superstructure braking ...................................... 76

Switching the power assist off ............................ 82

Superstructure holding brake - emergency operation ................................................................ 79

Switching the power assist on ............................ 82

Superstructure holding brake - function .............. 76

Switching the proportional valve over to emergency operation .................................................. 86

Superstructure holding brake - Function checking .......................................................... 171 Superstructure swinging .................................... 76 Superstructure swinging and braking ................ 76

Switching on floodlamps .................................... 72

Switching the Power Boost function on .............. 83

Switching the windscreen wiper / washer on and off ................................................................ 59

T

Supplementary control panel .............................. 46 Table of fault codes .......................................... 204 SWING GEAR .................................................. 170 Table of fuses .................................................. 190 Swing gear - changing oil ................................ 170 Tensioning the crawler chain ............................ 179 Swing gear - checking oil level ........................ 170 Testing the overload warning system .............. 103 Swing ring - checking grease filling .................. 172 Tightening torques ............................................ 205 Swing ring - checking tightness of screws ........ 174 To activate intermittent wiping ............................ 59 Swing ring - filling grease ................................ 173 To activate permanent wiping ............................ 59 Swing ring - lubricating bearing ........................ 173 To activate the wipe / wash function .................. 59 Swing superstructure .......................................... 81

PAGE LEFT INTENTIONALLY BLANK

MODEL S/N DATE:

DEALER PRE-DELIVERY SERVICE REPORT

HOUR METER READING.

DEALER CODE DEALER NAME

LOCATION

CUSTOMER NAME (IF KNOWN)

LOCATION

GENERAL CONDITION

EC/EW_____ __________ __________

GOOD

FAIR

POOR

CORRECTIVE ACTION TAKEN

LOW

FULL

HIGH

CORRECTIVE ACTION TAKEN

YES

NO

PAINT & DECALS CHASSIS (CHECK FOR RUST,DENTS,LEAKS) ATTACHMENTS CAB / CANOPY PLATED HARDWARE TIRES OR TRACKS CYLINDERS (CHECK FOR RUST,DENTS,LEAKS) SHIPPED LOOSE MATERIAL (CHECK FOR PAINT CONDITION,CRATE CONDITION IF APPLICABLE,SHORTAGES) FLUID CHECKS

TRAVEL GEAR (TWO) SWING GEAR ENGINE OIL FUEL (CHECK FILL CAP FILTER VENT) HYDRAULIC EC600 PUMP GEAR BOX COOLANT LEVEL COOLANT PROTECTION -______F. TESTED -______F. SPECIFICATION -______F. NEW VALUE BATTERY ELECTROLYTE WASHER FLUID LUBRICATE MACHINES AS DESCRIBED IN THE OPERATORS MANUAL____________ LEAKS AIR FILTERS IN PLACE TRAVEL GEAR SWING GEAR ENGINE OIL PAN ENGINE HEAD GASKET FUEL SYSTEM HYDRAULIC EC600 PUMP COOLANT

NHC 86978259

DEALER-WHITE WARRANTY-YELLOW CSS-PINK

CORRECTIVE ACTION TAKEN

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DEALER PRE-DELIVERY SERVICE REPORT

OPERATION

YES

NO

CORRECTIVE ACTION TAKEN

ELECTRICAL & STARTING SYSTEM MACHINE STARTED WITHOUT ASSISTANCE ALTERNATOR GAUGE / LIGHT IS WORKING ALTERNATOR BELT TENSION CHECKED TRAVEL ALARM WORKING CAB GAUGES / LIGHTS WORKING HEATER / AC WORKING HORN WORKING WARNING LIGHTS STAY ON AFTER START WARNING ALARMS STAY ON AFTER START WINDSHIELD WIPER / WASHER WORKING LIGHTS WORKING SIGNALS WORKING (TURN & HAZARD) ENGINE START MACHINE STARTED EASILY EXHAUST CLEAR ENGINE IDLED SMOOTHLY UNUSUAL NOISE SPEC.

CHECK ENGINE SPECIFICATION’S

VALUE

HIGH IDLE

rpm

rpm

LOW IDLE

rpm

rpm

HYDRAULIC STALL

rpm

rpm

CORRECTIVE ACTION TAKEN

(MACHINE IN HIGHEST GEAR WITH PARKING BRAKE APPLIED) PRESSURE CHECKS----(ENGINE AT HIGH IDLE AND TRANSMISSION IN NEUTRAL) SPEC.

CORRECTIVE ACTION TAKEN

VALUE

EW STEERING PRESSURE

psi

psi

PILOT PRESSURE

psi

psi

HYDRAULIC PRESSURE

psi

psi

HYDRAULIC SYSTEMS

YES

CORRECTIVE ACTION TAKEN

NO

CONTROL LEVER OPERATED PROPERLY UNUSUAL NOISE SPEC.

VALUE

BOOM RAISE TIME

SEC

SEC

BOOM DOWN TIME ARM OUT TIME

SEC SEC

SEC SEC

ARM IN TIME

SEC

SEC

BUCKET CURL IN TIME

SEC

SEC

BUCKET CURL OUT TIME

SEC

SEC

NHC 86978259

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CORRECTIVE ACTION TAKEN

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DEALER PRE-DELIVERY SERVICE REPORT

MISCELLANEOUS CHECKS

YES

NO

CORRECTIVE ACTION TAKEN

YES

NO

CORRECTIVE ACTION TAKEN

YES

NO

COMMENT

EW STEERING WORKS PROPERLY ENGINE MOUNTING BOLTS TORQUED TO SPEC SPROCKET BOLTS TORQUED TO SPEC TRACK TENSION ADJUSTED CORRECTLY TRACK SHOE BOLTS TORQUED TO SPEC TRACK ROLLER BOLTS TO SPEC EW WHEEL LUG NUTS TORQUED TO SPEC EW TIRE PRESSURE TO SPEC WIPER ARM BOLT TORQUED TO SPEC SWING BEARING BOLTS TORQUED TO SPEC

TRANSMISSION 2 SPEED TRAVEL SHIFTS AND WORKS PROPERLY

DOCUMENTATION & SHORTAGES OPERATING MANUAL OR INSTRUCTIONS WITH MACHINE OPTIONS AND ATTACHMENTS PER ORDER PARTS MANUAL AND ORDERING EXPLAINED

OTHER INFORMATION

LIST OF NON-OEM EQUIPMENT INSTALLED AT DEALERSHIP OR BY CUSTOMER AT DELIVERY.

HAS DIGITAL PHOTO BEEN TAKEN ( IF YES-ATTACH FILE )

NHC 86978259

YES

NO (NAME OF REPORTER/DATE)

DEALER-WHITE WARRANTY-YELLOW CSS-PINK

MODEL ____________ EC/EW CHASSIS S/N ____________ ENGINE S/N ____________ HOUR METER _________HRS DATE ____________

DEALER DELIVERY SERVICE REPORT

DEALER CODE DEALER NAME

LOCATION

CUSTOMER NAME (IF KNOWN)

LOCATION

AT DELIVERY THE FOLLOWING SERVICES ARE TO BE PERFORMED ( ) ( ) ( )

PROVIDE OWNER WITH OPERATOR’S MANUAL DISCUSS PROPER OPERATION AND SAFETY RULES REVIEW FLUID CHECK POINTS AND PROVIDE PROPER FLUID SPECIFICATION ( ) ( ) ENGINE OIL COOLANT ( ) HYDRAULIC OIL BRAKE FLUID ( ) DIFFERENTIAL TRANSMISSION OIL

( ) ( ) ( ) ( ) ( )

REVIEW AIR CLEANER MAINTENANCE INSTRUCT CUSTOMER ON PROPER FILTER SERVING ( ) ( ) ( )

( )

WINDSHIELD WASHER FLUID

AIR CLEANER ENGINE OIL FUEL

( ) ( ) ( )

HYDRAULIC OIL TRANSMISSION OIL COOLANT

INSTRUCT CUSTOMER ON PROPER BREATHER SERVICING ( ) ( )

CRANKCASE DIFFERENTIALS

( ) ( ) ( )

HYDRAULIC SYSTEM TRANSMISSION FUEL TANK

( )

REVIEW THE CONTENTS OF THE OPERATOR’S MANUAL

( )

REVIEW THE CONTENTS OF THE PARTS MANUAL

( )

INSTRUCT THE OPERATOR ON PROPER ( ) ( )

STARTING OF ENGINE

( )

OPERATION OF ENGINE SHUT DOWN

( )

PROPER PARKING AND SECURITY

OPERATION OF MACHINE

( )

REVIEW WARRANTY DOCUMENT AND DISCUSS ITEMS COVERED AND NOT COVERED BY THE NEW HOLLAND WARRANTY.

( )

CUSTOMER HAS SIGNED THE WARRANTY AND LIMITS OF LIABILITY DOCUMENT.

(DEALER SIGNATURE / DATE )

NHC 86978269

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Part No. English Printed in USA

73179391 12/99