Cat Bucyrus RH 70 Hydraulic Excavator OPERATING INSTRUCTIONS MANUAL

OPERATING INSTRUCTIONS RH 70

Hydraulic Excavator

RH 70 Bucyrus HEX GmbH

BA RH70(3 720 820.01)-EN

No.

OPERATING INSTRUCTIONS RH 70

Published by:

Bucyrus HEX GmbH Dept. 2470 – Documentation D-44149 Dortmund, Karl-Funke-Straße 36 Tel. +49 (0) 231 922-4340 Fax +49 (0) 231 922-5340 www.bucyrus-hex.com

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OPERATING INSTRUCTIONS RH 70

The Terex|O&K operating manual is in 6 sections; the sections are designed for different target groups: Operating instructions

Part 1 INTRODUCTION FUNDAMENTAL SAFETY INSTRUCTIONS Part 2 OPERATION

Target group

Operating personnel + Inspection and servicing personnel + Repair personnel Operating personnel The operating personnel must have knowhow relevant to the operation and the application of this or comparable machines.

Part 3 INSPECTION AND SERVICING Part 4 REPAIR WORK

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

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

Part 5 ANNEX

Part 6 INDEX

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Operating personnel + Inspection and servicing personnel + Repair personnel Operating personnel + Inspection and servicing personnel + Repair personnel

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OPERATING INSTRUCTIONS RH 70

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OPERATING INSTRUCTIONS RH 70 Table of contents TABLE OF CONTENTS 1 INTRODUCTION ___________________________________________________________________ 1-1 PREFACE ________________________________________________________________________ 1-3 WARRANTY ______________________________________________________________________ 1-4 FUNDAMENTAL SAFETY INSTRUCTIONS______________________________________________ 1-5 Warnings and symbols _____________________________________________________________ 1-5 DESIGNATED USE _________________________________________________________________ 1-6 ORGANIZATIONAL MEASURES ______________________________________________________ 1-7 Selection and qualification of personnel; basic responsibilities ______________________________ 1-8 Safety instructions governing specific operational phases __________________________________ 1-8 Special work in conjunction with utilization of the machine and maintenance and repairs as well as troubleshooting during work; disposal of parts and consumables ____________________________ 1-9 Warning of special dangers ________________________________________________________ 1-10 Gas, dust, steam and smoke _______________________________________________________ 1-11 Hydraulic equipment ______________________________________________________________ 1-11 Noise__________________________________________________________________________ 1-11 Oil, grease and other chemical substances ____________________________________________ 1-11 Transporting and recommissioning __________________________________________________ 1-11 FIRE AND EXPLOSION HAZARD ____________________________________________________ 1-12 NOTES _________________________________________________________________________ 1-13 2 OPERATION ______________________________________________________________________ 2-1 OPERATION - SAFETY INSTRUCTIONS _______________________________________________ 2-3 FIRE AND EXPLOSION HAZARD _____________________________________________________ 2-5 DESCRIPTION OF THE EXCAVATOR__________________________________________________ 2-6 Excavator layout __________________________________________________________________ 2-7 Undercarriage ____________________________________________________________________ 2-8 Superstructure ___________________________________________________________________ 2-8 Drive ___________________________________________________________________________ 2-8 Hydraulic system__________________________________________________________________ 2-8 Pump Managing System (PMS) ______________________________________________________ 2-8 Stored Program Control (SPC) _______________________________________________________ 2-8 Board-Control-System (BCS) (optional) ________________________________________________ 2-8 Demand control / Zero-flow regulation _________________________________________________ 2-9 Automatic engine speed reduction ____________________________________________________ 2-9 Electrical system __________________________________________________________________ 2-9 Sign___________________________________________________________________________ 2-11 DRIVER'S CAB__________________________________________________________________ 2-12 Entering and leaving the machine - Safety instructions ___________________________________ 2-12 EMERGENCY STOP pushbutton ____________________________________________________ 2-13 EMERGENCY STOP, reset the function ______________________________________________ 2-14 Operating hours meter ____________________________________________________________ 2-14 Windscreen washer ______________________________________________________________ 2-15 Driver's seat ____________________________________________________________________ 2-16 Adjusting the control consoles ______________________________________________________ 2-17 Driver's seat (optional) ____________________________________________________________ 2-18 Fire-extinguisher _________________________________________________________________ 2-19

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OPERATING INSTRUCTIONS RH 70 Table of contents MONITORING, WARNING AND CONTROL ELEMENTS __________________________________ 2-20 PUTTING THE MACHINE INTO OPERATION ___________________________________________ 2-47 Refuelling ______________________________________________________________________ 2-47 Switching the electrical system on and off _____________________________________________ 2-49 STARTING AND STOPPING THE ENGINES____________________________________________ 2-50 Heating (optional) ________________________________________________________________ 2-52 Heating (optional) ________________________________________________________________ 2-53 Heating (optional) ________________________________________________________________ 2-54 DRIVING ________________________________________________________________________ 2-55 SAFETY INSTRUCTIONS _________________________________________________________ 2-55 TRAVELLING ___________________________________________________________________ 2-56 Locking the superstructure __________________________________________________________ 2-4 Track parking brake _______________________________________________________________ 2-4 TRANSPORTING THE MACHINE _____________________________________________________ 2-5 Transport - Safety instructions _______________________________________________________ 2-5 WORKING OPERATION_____________________________________________________________ 2-6 SAFETY INSTRUCTIONS __________________________________________________________ 2-6 Before starting work _______________________________________________________________ 2-8 Swinging and braking the superstructure _______________________________________________ 2-8 Working _______________________________________________________________________ 2-10 Emergency lowering of working equipment ____________________________________________ 2-11 After daily operation ______________________________________________________________ 2-11 ASSEMBLING WORKING EQUIPMENT - SAFETY INSTRUCTIONS _______________________ 2-12 Securing the machine _____________________________________________________________ 2-14 CORROSION PROTECTION FOR PINS AND BEARINGS (BUSHINGS AND HUBS) ____________ 2-15 LIFTING OPERATIONS ____________________________________________________________ 2-16 Safety instructions________________________________________________________________ 2-16 Load-hooks on backhoe buckets.____________________________________________________ 2-17 NOTES _________________________________________________________________________ 2-21 3 INSPECTION AND SERVICING _______________________________________________________ 3-1 INSPECTION AND SERVICING - SAFETY INSTRUCTIONS ________________________________ 3-3 FIRE AND EXPLOSION HAZARD _____________________________________________________ 3-9 ENVIRONMENTALLY COMPATIBLE HYDRAULIC FLUID _________________________________ 3-10 Environmentally compatible hydraulic fluid - operating instructions __________________________ 3-10 Environmentally compatible hydraulic fluid, conversion ___________________________________ 3-10 Environmentally compatible hydraulic fluid - Sampling____________________________________ 3-11 ENVIRONMENT-FRIENDLY LUBRICANTS AND GEARBOX OILS___________________________ 3-12 Lubricants for bearings ____________________________________________________________ 3-12 Gearbox oils ____________________________________________________________________ 3-12 INSPECTION AND SERVICING PLANS - INSTRUCTIONS ________________________________ 3-13 Intervals _______________________________________________________________________ 3-13 Change of engine oil l _____________________________________________________________ 3-13 Oils / Greases ___________________________________________________________________ 3-13 Cleaning jobs ___________________________________________________________________ 3-13 Components ____________________________________________________________________ 3-13 Plan V _________________________________________________________________________ 3-14 Plan N _________________________________________________________________________ 3-16 Plan T and W ___________________________________________________________________ 3-17

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OPERATING INSTRUCTIONS RH 70 Table of contents Plan A – E ______________________________________________________________________ 3-19 LUBRICATING CHART – GREASE (LOADING BUCKET)__________________________________ 3-24 Lubricating chart – Grease / Loading bucket (legend) ____________________________________ 3-25 Filling quantities - Grease __________________________________________________________ 3-25 LUBRICATING CHART – GREASE / BACKHOE BUCKET (LEGEND) ________________________ 3-26 Lubricating chart – Grease / Backhoe bucket (legend) ___________________________________ 3-27 Filling quantities - Grease __________________________________________________________ 3-27 INSPECTION PLAN - OIL ___________________________________________________________ 3-28 Inspection plan – Oil (legend) ) ______________________________________________________ 3-29 Filling quantities - oil ______________________________________________________________ 3-30 Filling quantities - other____________________________________________________________ 3-30 LUBRICANTS ____________________________________________________________________ 3-31 I. Oils for combustion engine______________________________________________________ 3-31 II. Oils for hydraulic system (selection)_______________________________________________ 3-32 III.a Oils for pump gearbox _______________________________________________________ 3-33 III.b Oils for swing gearbox _______________________________________________________ 3-34 III.c Oils for travel gearbox________________________________________________________ 3-35 V. Greases for bearings and swing rings _____________________________________________ 3-36 SERVICING WORK________________________________________________________________ 3-37 Hose line for oil and cooling liquid changes ____________________________________________ 3-37 ENGINE _________________________________________________________________________ 3-38 Engine - Safety instructions ________________________________________________________ 3-38 Checking the engine oil level / Topping up _____________________________________________ 3-38 Changing the engine oil ___________________________________________________________ 3-39 Replacing the engine oil filter _______________________________________________________ 3-40 COOLING SYSTEM _______________________________________________________________ 3-41 Temperature ____________________________________________________________________ 3-41 Radiators and cooling liquid ________________________________________________________ 3-41 Topping up cooling liquid __________________________________________________________ 3-42 Change cooling liquid _____________________________________________________________ 3-42 AIR-INTAKE SYSTEM______________________________________________________________ 3-44 Main filter elements_______________________________________________________________ 3-44 Safety filter element ______________________________________________________________ 3-46 Air-intake lines __________________________________________________________________ 3-46 Dust collection___________________________________________________________________ 3-46 FUEL SYSTEM ___________________________________________________________________ 3-47 Fuel system - Safety instructions ____________________________________________________ 3-47 Primary fuel filter, drain off water ____________________________________________________ 3-47 Primary fuel filter, replace __________________________________________________________ 3-48 Secondary fuel filter, replace _______________________________________________________ 3-49 Venting the fuel tank ______________________________________________________________ 3-50 Cleaning the fuel tanks ____________________________________________________________ 3-50 Refuelling station (optional) ________________________________________________________ 3-51 Water trap (option) _______________________________________________________________ 3-52 ELECTRICAL SYSTEM_____________________________________________________________ 3-54 Electrical system - Safety instructions ________________________________________________ 3-54 Alternator - Instructions____________________________________________________________ 3-54 Battery_________________________________________________________________________ 3-55 Switchgear cabinet _______________________________________________________________ 3-57 HYDRAULIC SYSTEM _____________________________________________________________ 3-59 Hydraulic system - Safety instructions ________________________________________________ 3-59

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OPERATING INSTRUCTIONS RH 70 Table of contents Depressurizing the hydraulic system _________________________________________________ 3-59 Checking the hydraulic oil level______________________________________________________ 3-60 Topping up with hydraulic oil________________________________________________________ 3-60 Changing the hydraulic oil return-flow (hydraulic oil reservoir) ______________________________ 3-61 Bypass valves (working circuit)______________________________________________________ 3-62 Bypass valves (cooling circuit) ______________________________________________________ 3-63 Breather filter ___________________________________________________________________ 3-64 High-pressure filter for working hydraulics _____________________________________________ 3-65 High-pressure filters for the servo circuit and the feeding circuit of the swing pump _____________ 3-66 Changing the hydraulic oil__________________________________________________________ 3-67 Electronic excavator control ________________________________________________________ 3-69 Venting the hydraulic system _______________________________________________________ 3-70 Cleaning the hydraulic oil cooler _____________________________________________________ 3-71 Pressure accumulator_____________________________________________________________ 3-72 PUMP TRANSFER GEARBOX _______________________________________________________ 3-73 Checking the gearbox oil level / Topping up with oil ______________________________________ 3-73 Changing the gearbox oil __________________________________________________________ 3-74 SWING GEARBOX ________________________________________________________________ 3-76 Gearbox - Checking the oil level / Topping up with oil ____________________________________ 3-76 Changing the gearbox oil __________________________________________________________ 3-76 Gearbox venting _________________________________________________________________ 3-77 Output pinion____________________________________________________________________ 3-77 TRAVEL GAERBOX _______________________________________________________________ 3-78 Gearbox - Checking the oil level / Topping up with oil ____________________________________ 3-78 Travel gearbox - Changing the oil____________________________________________________ 3-78 CRAWLER TRACKS _______________________________________________________________ 3-79 Track rollers, support rollers, track pads ______________________________________________ 3-79 Track tensioner __________________________________________________________________ 3-81 Pressure-accumulator inspection regulations___________________________________________ 3-82 Checking the gas charging pressure in the pressure accumulator___________________________ 3-82 .SWING RING ____________________________________________________________________ 3-83 Swing ring - Instructions ___________________________________________________________ 3-83 Bearing races ___________________________________________________________________ 3-83 CENTRAL LUBRICATING___________________________________________________________ 3-85 Design and function ______________________________________________________________ 3-85 OTHER MAINTENANCE____________________________________________________________ 3-86 Heating and air conditioning ________________________________________________________ 3-86 PUTTING THE EXCAVATOR OUT OF OPERATION AND RECOMMISSIONING _______________ 3-87 Putting the excavator out of operation ________________________________________________ 3-87 Battery storage __________________________________________________________________ 3-87 Recommissioning ________________________________________________________________ 3-87 NOTES _________________________________________________________________________ 3-89 4 REPAIR WORK____________________________________________________________________ 4-1 REPAIR WORK - SAFETY INSTRUCTIONS _____________________________________________ 4-3 FIRE AND EXPLOSION HAZARD _____________________________________________________ 4-5 ENGINE __________________________________________________________________________ 4-6 ELECTRICAL SYSTEM______________________________________________________________ 4-7 Assisted starting (with jumper cables) – Safety instructions_________________________________ 4-7

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OPERATING INSTRUCTIONS RH 70 Table of contents Assisted starting (with jumper cables) _________________________________________________ 4-7 Starting the engine with jumper cables (external batteries __________________________________ 4-7 HYDRAULIC SYSTEM ______________________________________________________________ 4-9 Repair __________________________________________________________________________ 4-9 PRESSURE ACCUMULATORS - SAFETY INSTRUCTIONS _______________________________ 4-10 WELDING OPERATIONS - SAFETY INSTRUCTIONS ____________________________________ 4-11 NOTES _________________________________________________________________________ 4-13 5 ANNEX __________________________________________________________________________ 5-1 TROUBLESHOOTING ______________________________________________________________ 5-3 Instructions on troubleshooting_______________________________________________________ 5-3 Layout of the fault table_____________________________________________________________ 5-3 Possible causes __________________________________________________________________ 5-3 Measures _______________________________________________________________________ 5-3 Section _________________________________________________________________________ 5-3 FAULT TABLES____________________________________________________________________ 5-4 Combustion engine - Fault table______________________________________________________ 5-4 , _______________________________________________________________________________ 5-4 Working hydraulics – Fault table______________________________________________________ 5-5 Track drive – Fault table ____________________________________________________________ 5-6 Swing mechnism – Fault table _______________________________________________________ 5-7 Central lubricating system – Fault table ________________________________________________ 5-8 HYDRAULIC CIRCUIT DIAGRAM______________________________________________________ 5-9 ABBREVIATIONS _________________________________________________________________ 5-11 TECHNICAL DATA ________________________________________________________________ 5-13 6 INDEX ___________________________________________________________________________ 6-1

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OPERATING INSTRUCTIONS RH 70 Table of contents

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OPERATING INSTRUCTIONS RH 70 Introduction 1 INTRODUCTION Operating instructions

Part 1 INTRODUCTION FUNDAMENTAL SAFETY INSTRUCTIONS Part 2 OPERATION

Target group

Operating personnel + Inspection and servicing personnel + Repair personnel Operating personnel The operating personnel must have knowhow relevant to the operation and the application of this or comparable machines.

Part 3 INSPECTION AND SERVICING Part 4 REPAIR WORK

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

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

Part 5 ANNEX

Part 6 INDEX

BA RH70(3 720 820.01)-EN

Operating personnel + Inspection and servicing personnel + Repair personnel Operating personnel + Inspection and servicing personnel + Repair personnel

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OPERATING INSTRUCTIONS RH 70 Introduction

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OPERATING INSTRUCTIONS RH 70 Introduction PREFACE These operating instructions are designed to familiarize the operator with the machine and its designated use.

The operating instructions contain 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 operating instructions 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 driver's cab of the machine.

All Terex|O&K operating manuals are issued in German and then translated. Even a good translation may give rise to questions which Terex|O&K 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 Terex|O&K aftersales 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.

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 the place where the machine is to be used, the generally recognized technical rules 1 for safe and proper working must be observed 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 Terex|O&K mechanic or by attending an Terex|O&K training course for operators or maintenance personnel.

The Terex|O&K after-sales service will be pleased to deal with any queries you may have after reading through the operating instructions.

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Complies with VDMA recommendation "Operating instructions"

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OPERATING INSTRUCTIONS RH 70 Introduction WARRANTY The warranty of Terex|O&K presupposes among other things that the servicing works as described in the operating instructions have been performed:

by the Terex|O&K Service

or

in a workshop authorized in writing by Terex|O&K,

and

by using the original spare parts of Terex|O&K.

The proper execution of the servicing works must be documented on the Terex|O&K Service checklists.

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OPERATING INSTRUCTIONS RH 70 Introduction FUNDAMENTAL SAFETY INSTRUCTIONS Complies with VDMA recommendation "Operating Instructions"

Warnings and symbols The following signs are used in the operating instructions to designate instructions of particular importance: 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.

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OPERATING INSTRUCTIONS RH 70 Introduction DESIGNATED USE The machine has been built in accordance with state-of-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 (acceptable risk) An acceptable risk is present, e.g.: loose material or material to be loaded may drop out of the bucket or backhoe while the working equipment is being swivelled.

The machine must be used only in technically perfect condition in accordance with its designated use and the instructions set out in the operating instructions, 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 backhoe or loading bucket attachment is designed solely for excavating and loading:

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

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 driving in posts, sheetpiles supports, etc. without the equipment being approved for this purpose,

is considered contrary to the designated use.

excavated soils,

Lifting eyes on the lower carriage

sand,

-

gravel,

are settled for transporting with a crane only.

blasted rock,

-

must not be used for towing a machine.

ore,

coal,

and other raw materials.

Fitted with other attachments, the excavator can also be used as a special-purpose machine, e.g. with a hydraulic hammer. Further detailed information can be found in the Technical Specifications.

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 with the user.

Noise emission specifications 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 the 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) fulfill the requirements of protecting the driver against wholebody vibration.

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OPERATING INSTRUCTIONS RH 70 Introduction

fall arresters

protective suit

helmet

goggles - e. g. for cleaning work - or for welding work

protective gloves - e.g. for work on hot units - for grinding and welding work

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

protective working gloves - e.g. for fitting work - for grinding and welding work

ear protectors

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.

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

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 place 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.

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 operating 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.

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

Personal protective equipment and the working clothing Depending on the cleaning, servicing and/or repair activities to be performed, the personal protective equipment and the working clothing may consist of the following items:

Observe all safety instructions and warnings attached to the machine.

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.

Use only the original sparts parts of Terex|O&K. They are the only ones to fulfill the technical specifications of the machine.

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.

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OPERATING INSTRUCTIONS RH 70 Introduction 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 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 and brake systems must be performed by skilled personnel only, which has been specially trained for such work.

Work on hydraulic systems 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 area and the bearing capacity of the soil.

Take the necessary precautions to ensure that the machine is 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 malfunction, 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 braking, signalling and lighting systems are fully functional.

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

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

Persons accopanying the driver must be seated on the passenger seat provided for this purpose.

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

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OPERATING INSTRUCTIONS RH 70 Introduction Always keep a distance from the working face and from 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.

Before leaving the driver's seat always secure the machine against inadvertent movement and unauthorized use. Shut off the engines.

Special work in conjunction with utilization of the machine and maintenance and repairs as well as troubleshooting during work; 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 safetyoriented 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 movements.

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.

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

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OPERATING INSTRUCTIONS RH 70 Introduction Wear a safety harness when carrying out maintenance work at heights above 1 m.

Caution, danger! Check out the prescribed safety distances.

Wear an approved harness equipped with fall arresters and safety lines.

If your machine comes into contact with a live wire

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 lint-free 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 switch-gear 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 firefighting system.

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

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

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

 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 or contacted 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.

High-voltage system Floodlamps equipped with gaz discharge lamps require a high-voltage supply (ca. 25 kV).

The high voltage is generated by a ballast unit.

Switch off the electrical system of the excavator before touching the lamp or the ballast unit.

Battery Warning! Battery Posts, terminals and related accessories contain lead and lead compounds, chemicals known to cause cancer and reproductive harm. Wash hands after handling

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

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OPERATING INSTRUCTIONS RH 70 Introduction Gas, dust, steam and smoke

Noise

Always start and operate the engine in a wellvented area;

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

If in an enclosed area, vent the exhaust to the outside;

Always wear the prescribed ear protectors.

Do not modify or tamper with the exhaust system Diesel engine exhaust and some of its constituents are known to cause cancer, birth defects, and other reproductive harm Operate fuel-operated 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).

Oil, grease and other chemical substances When handling oil, grease or other chemical substances, observe the product-related safety regulations (see safety specifications).

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

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

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

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

CALIFORNIA Proposition 65 Warning Diesel engine exhaust and some of its con-

stituents are known to the State of California to cause cancer, birth defects, and other reproductive harm.

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

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

Hydraulic 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.

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OPERATING INSTRUCTIONS RH 70 Introduction FIRE AND EXPLOSION HAZARD

Place suitable fire guardings (fire barriers) if open fire or flying sparks cannot be avoided during repair work.

Prior to commencing work, obtain informationon the national and corporate rules for the prevention of accidents.

Apply special protection to cables, cable ducts as well as to hose and pipe lines.

Pay particular attention to hazards caused by combustible and easily flammable substances.on the safe handling of the fire extinguishers to be used.

If necessary, also cover the ground with fireprotective blankets.

Ensure sufficient ventilation.

Clean the excavator before starting a job.

Do not keep any fire extinguishers that are not suitable or have not been tested.

Avoid smoking and open fire on, next to and below the excavator.

Do not extinguish flammable liquids with water.

Use:

Combustible and easily flammable substances or liquids increase the fire and explosion hazard.

dry-powder,

carbon-dioxide or foam extinguishing compounds.

Do not store or handle any flammable substances during operation.

Clean the excavator thoroughly, if possible, with a steam jet (rubber parts and electric components with compressed air - refer to information label), when, for example, oil, grease, fuel or cleaner was spilled.

Such substances may spontaneously ignite if they get into the vicinity of hot units or objects such as turbo superchargers.

When getting into contact with burning substances, the fire-fighting water would abruptly evapor55ate and distribute the substance such as oil over a wide area. Water causes short-circuits in the electrical system thus possibly entailing new hazards. Call the fire brigade.

Have all your welding, flame cutting and grinding work approved.

Even battery gases can ignite in open flames or fire.

Avoid parking the excavator in places where

combustible substances such as coal dust or tar are present.

open or smouldering fire may occur.

Remove the excavator from such an area where combustible or easily flammable liquids have spilled from the excavator onto the ground.

Flying sparks (caused by welding, flame cutting, grinding, electrical short-circuit) may cause fire on the ground that can spread to the excavator.

1-12

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Introduction NOTES .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. ..............................................................................................................................................................................

BA RH70(3 720 820.01)-EN

1-13

OPERATING INSTRUCTIONS RH 70 Introduction

1-14

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation 2 OPERATION Operating instructions

Part 1 INTRODUCTION FUNDAMENTAL SAFETY INSTRUCTIONS Part 2 OPERATION

Target group

Operating personnel + Inspection and servicing personnel + Repair personnel Operating personnel The operating personnel must have knowhow relevant to the operation and the application of this or comparable machines.

Part 3 INSPECTION AND SERVICING Part 4 REPAIR WORK

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

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

Part 5 ANNEX

Part 6 INDEX

BA RH70(3 720 820.01)-EN

Operating personnel + Inspection and servicing personnel + Repair personnel Operating personnel + Inspection and servicing personnel + Repair personnel

2-1

OPERATING INSTRUCTIONS RH 70 Operation

2-2

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation OPERATION - SAFETY INSTRUCTIONS Operating instructions Never operate the machine before having read and understood the operating instructions.

Pay special attention to: the "Fundamental Safety Instructions" and to all warning and instruction signs attached to the machine.

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

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

Keep the operating instructions with the machine at all times.

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

The necessary know-how can be acquired in several days' instruction, e.g. by an Terex|O&K mechanic or by attending an Terex|O&K operator's training course.

Personal protective gear and working clothing 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 control levers being inadvertently activated

BA RH70(3 720 820.01)-EN

Safety belt For machines with a safety belt for operating personnel: Check the safety belt attached to the driver's seat. In the event of damage or after an accident, have it replaced immediately.

Apply the 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.

Always have inspection and maintenance work carried out on schedule.

Operate the machine only with the equipment and component combinations approved by Terex|O&K. Clear-cut data are given in the technical specification.

Never install and commission other equipment and component combinations without Terex|O&K having first inspected and approved the project.

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

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

Check that all warning and instruction signs attached to the machine are present and legible.

Entering and leaving the machine Always face the machine when entering or leaving it.

Use only the ladders, steps, platforms and grab handles provided when entering and leaving the machine.

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

2-3

OPERATING INSTRUCTIONS RH 70 Operation Hazard range The hazard range is that zone around the machine in which persons are within reach of loads or attachments falling as a result of operational movements by the machine, of its equipment and attachments or of swinging loads.

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.

Marshallers The marshaller must keep outside the hazard zone.

Have a marshaller to assist you:

when you have no clear overview over the hazard zone of the machine,

when reversing,

when shunting.

Use only those communication signals which you and the marshaller 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.

Securing the machine Secure the machine as described under "Securing the machine" before:

2-4

mounting or dismantling the attachment,

parking the machine after daily operation,

carrying out any servicing or repair work.

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation FIRE AND EXPLOSION HAZARD Safety instructions Avoid smoking and open fire on, next to and below the machine.

Combustible and easily flammable substances or liquids increase the fire and explosion hazard.

Do not store such substances on the excavator.

Clean the excavator thoroughly, if possible, with a steam jet (rubber parts and electric components with compressed air - refer to information label), when, for example, oil, grease, fuel or cleaner was spilled.

Such substances may spontaneously ignite if they get into the vicinity of hot units or objects such as turbo superchargers.

Even battery gases can ignite in open flames or fire.

Avoid parking the excavator in places where – combustible substances such as coal dust or tar are present, – open or smouldering fire may occur.

Remove the excavator from such an area where combustible or easily flammable liquids have spilled from the excavator onto the ground.

Flying sparks may cause fire on the ground that can spread to the excavator.

BA RH70(3 720 820.01)-EN

2-5

OPERATING INSTRUCTIONS RH 70 Operation DESCRIPTION OF THE EXCAVATOR

Fig. 2-1:

2-6

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OPERATING INSTRUCTIONS RH 70 Operation Excavator layout Fig. 2-1:

30 – Grease container 31 – Counterweight 32 – Air conditioner

Undercarriage

33 – Switch cabinet with PMS and SPC

1 - Track drive

34 – Ladder

2 – Idler

35 – Ladder

3 - Track roller 4 - support roller

Loading bucket

5 - Crawler track

41 – Boom

6 - Track tensioner

42 - TriPower linkage

7 - Swing ring

43 – Stick

8 - Ladder

44 - Bottom-dump bucket

Superstructure 11 – Engine 12 - Fuel tank 13 – Reservoir (cooling liquid) 14 – Radiator (engine cooling liquid) 15 – Air-intake system with vacuum-meter 16 – Exhaust system

45 - Boom cylinder 46 - Stick cylinder 47 - Tipping cylinder 48 - Bottom-dump cylinder 54 - Control valves 55 - Bottom-dump control valve 56 - Quick-action valve

17 – Pump transfer gearbox

Backhoe bucket

18 – Hydraulic pumps (main pumps)

43 - Stick

19 – Hydraulic pump (fan drive)

45 - Boom cylinder

20 – Swing pump

46 - Stick cylinder

21 – Pilot control pump

49 - Monoblock boom

22 – Cooling oil pump

50 - Backhoe bucket

23 – Hydraulic oil cooler

51 - Backhoe cylinder

24 – Hydraulic oil reservoir

52 - Toggle link

25 – Swing gear

53 - Toggle lever

26 – Batteries

54 - Control valves

27 – Driver`s cab 28 – Control panel 29 – Travel control block and rotor

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2-7

OPERATING INSTRUCTIONS RH 70 Operation Undercarriage

Pump Managing System (PMS)

The undercarriage of the hydraulic excavator serves as a stable base and for travelling. The crawler tracks are driven hydraulically with oil motors and travel gearboxes. Undercarriage and superstructure are connected by means of a swing ring.

The Pump Managing System (PMS) with overlimit regulation ensures optimum utilization of the installed or preset engine power. The electronic pump demand control prevents the machine from demanding more hydraulic power than the diesel engines can furnish. A microprocessor ensures that the hydraulic output power of the pump is optimally suited to the actual operation conditions.

Superstructure The superstructure accommodates the drive and part of the hydraulic and electrical equipment.

Drive The drive unit comprises diesel engines, pump transfer gearboxes, hydraulic pumps, hydraulic cylinders and hydraulic motors.

Hydraulic system All working and travelling movements are performed hydraulically. The movements are controlled by servovalves. The working commands are initiated by hand and transmitted to the valves via control circuits. The oil supply from the superstructure to the undercarriage is ensured by the rotor. The hydraulic system is overload-protected by pressure-relief valves. The hydraulic pumps are supplied with oil from a hydraulic reservoir.

Stored Program Control (SPC) The SPC controls the functions

Engine Start

Engine Stop

Engine Idle

Central lubricating system

Further auxiliary functions

Further information is given in the technical manual: “Stored-program control”.

Board-Control-System (BCS) (optional) The BCS is a data-evaluating and data-processing system whose function is to collect, evaluate and store data about the excavator's operating status and to display these to the operator.

The BCS is based on a micro-processor. The measured values (actual values) supplied by sensors and transducers installed in the excavator are compared to preset nominal values. Out-of-limit conditions are displayed in the form of error messages in the cab.

Critical operating conditions are additionally indicated by optical and acoustic warning signals.

Further dedails are set out in the Board-ControlSystem operating instructions.

2-8

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation Demand control / Zero-flow regulation

Electrical system The electrical system operates on 24 volts.

In the fine-control range, swivelling of the hydraulic pumps, and thus the variation of oil flow, are proportional to control lever and pedal valve travel.

This means that during the work, the pumps supply only as much hydraulic oil as required to perform the working movement. In the neutral position of the control levers, the pumps are automatically swivelled to zeroflow.

These special features offer the following advantages:

reduced fuel consumption,

minimum power losses,

reduced temperature of the hydraulic oil,

greater service life of hydraulic pumps and diesel engines.

Automatic engine speed reduction If the control pedals and control levers and thus the Servovalves are not actuated for a period of 10 seconds or more (programable), the speed of the engines is automatically reduced to idling.

Thisfunction is a further contribution to fuel economy.

BA RH70(3 720 820.01)-EN

2-9

OPERATING INSTRUCTIONS RH 70 Operation

Fig. 2-2:

2-10

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation Sign Warning and instruction signs Observe the warning and instruction signs attached to the machine.

Keep the signs legible and clean.

Replace signs immediately if they have become illegible.

New warning and instruction signs can be ordered from the Terex|O&K Spare Parts Service. The ordering part numbers are set out in the spareparts list of the machine.

Fig. 2-4:

Fig. 2-2: shows the location of warning and instruction signs on the machine.

Machine number The identification plate with the machine number (Fig. 2-4:) is attached to the front side of the Aframe (arrow, Fig. 2-3:).

Engine number The serial number plate (Fig. 2-5:) for the diesel engine is located on the diesel engine.

Fig. 2-5: Fig. 2-3:

Component numbers Other larger units also have identification plates indicating, among other things, their serial number.

On steel components, the Terex|O&K part number or the serial number may be stamped into the metal at a clearly visible place.

BA RH70(3 720 820.01)-EN

2-11

OPERATING INSTRUCTIONS RH 70 Operation DRIVER'S CAB Entering and leaving the machine - Safety instructions Clean off oil, grease, soil, mud, snow, ice and other substances from shoes, grab handles and steps.

Keep steps, platforms and grab handles in a non-slippery condition.

Risk of injury due to slipping.

For entering and leaving use only the steps, platforms and grab handles provided (see Fig. 2-6:) and Fig. 2-7:.

Fig. 2-6:

Always face the machine when entering or leaving it.

Fig. 2-7:

2-12

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation Ladder (optional) Raising resp. lowering the ladder

Fig. 2-8:

Raising the ladder  Start engine.

Fig. 2-9:

 Pull lever (1, Fig. 2-8:) on control valve (2, Fig. 2-8: and Fig. 2-9:) upwards to position “ I “.

The ladder is raised (Fig. 2-9:).

The upper carriage can only be swung when the ladder is raised completely (Fig. 2-9:).

Lowering the ladder  Start engine.  Push lever (1, Fig. 2-8:) on control valve (2, Fig. 2-8: and Fig. 2-10:) downwards to position “ II “.

The ladder is lowered (Fig. 2-10:).

The ladder can also be lowered when the engine is stopped.

Fig. 2-10:

BA RH70(3 720 820.01)-EN

2-13

OPERATING INSTRUCTIONS RH 70 Operation EMERGENCY STOP pushbutton

Operating hours meter

The entire electrical system is switched off with the EMERGENCY STOP pushbutton.

 Open hatch (2, Fig. 2-12:), the operating hours meter (3, Fig. 2-13:is located in the switch cabinets door (1).

In an emergency, press in the EMERGENCY STOP pushbutton.

The EMERGENCY STOP pushbutton is located in the control column in the driver's cab (31, Fig. 2-11:).

Fig. 2-12:

Fig. 2-11:

EMERGENCY STOP, reset the function To switch on the electrical system: Â turn EMERGENCY STOP pushbutton (31, Fig. 2-11:) counterclockwise. It comes out automatically.

2-14

Fig. 2-13:

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation Cab interior lamp

Windscreen washer

The interior lamp is switched on and off with switch (1, Fig. 2-14:).

The reservoir of the windscreen washing system (1, Fig. 2-15:) is located in the behind the cover (1, Fig. 2-16:). Â Remove cover (1) For the reservoir (1, Fig. 2-15:) capacity refer to the "Refilling quantities - Other" table.

Fig. 2-14:

Switch position

0 - lamp off 1 – lamp on.

Fig. 2-15:

The interior lamp can be used even if the electrical system is switched off.

Therefore, switch off the interior lamp when leaving the machine. The batteries may be discharged if the interior lamp is left on for prolonged periods.

Fig. 2-16:

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2-15

OPERATING INSTRUCTIONS RH 70 Operation Driver's seat

Adjusting the lumbar support

The driver's seat (Fig. 2-17:) can be adjusted in inclination, height and fore-and-aft position. The seat suspension can be adapted to the driver's weight.

The backrest is equipped with an upper and a lower air chamber.

Never adjust the seat while driving.

Concentrate on the road to avoid accidents.

Before carrying out any seat adjustments: - stop the machine - set the control lever to "0"

Pull knob (7) upwards - the lower chamber is inflated with air Pull knob (3) upwards - the upper chamber is inflated with air Push knobs (3 and 7) downwards - the air chambers are deflated

Adjusting the seat cushion Adjust the inclination of the seat cushion with buttons (1 and 2).

Button (1) – lower frontside of cushion Button (2) – lower backside of cushion Bring the seat cushion into the desired position by moving the body forwards or backwards. Release button (1 or 2).

Adjusting the armrests The armrests can be raised or lowered as required.

To adjust the armrest inclination, turn knobs (6) to the right or left.

Fore-and-aft position The fore-and-aft position of the seat can be adjusted with lever (9).

Fig. 2-17:

Adjusting the backrest Adjust the inclination of the backrest with button (5) verstellen. Lean against the backrest or move your body forwards to bring the backrest into the desired position. Release button (5).

Pull lever (9) upwards, slide seat to the desired position and allow lever (9) to engage.

Fore-and-aft adjustment of the seat plate The fore-and-aft position is adjusted with lever (8).

Pull lever (8) upwards, slide seat plate to the desired position and allow lever (8) to engage.

2-16

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation

Do not adjust the control consoles during travelling.

The control consoles on the right and left of the driver's seat can be shifted parallel to the seat by abt. 16 cm (6.3 in) forwards and backwards so that the driver can select the the position best suited to him for fatigue-free working.

Concentrate on the road to avoid accidents.

Adjusting the right control console:

Do not adjust the control consoles when the hydraulic pilot control is activated.

 Push lever (124) outwards against the pressure of the spring and maintain while shifting the console into the desired position.

Adjusting the control consoles

Risk of moving the control levers inadvertently and of triggering uncontrolled movements of the working equipment.

Before adjusting the consoles: Â stop the machine by releasing the travelling pedals (112 and 113, Fig. 2-18:); they will return to 0.

 Release the lever and check that the console locking mechanism has engaged.

Adjusting the left control console: Â Push lever (123) outwards against the pressure of the spring and maintain while shifting the console into the desired position. Â Release the lever and check that the console locking mechanism has engaged.

 stand working equipment on the ground.  stop the engine.

Fig. 2-18:

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2-17

OPERATING INSTRUCTIONS RH 70 Operation Driver's seat (optional) The driver's seat (Fig. 2-19:) can be adjusted in inclination, height and fore-and-aft position. The seat suspension can be adjusted to suit the driver's weight.

Never adjust the seat while driving.

Concentrate on the road to avoid accidents.

Before carrying out any seat adjustments: – stop the machine

Pos.

Function

1

Height adjustment

2

Backrest adjustment

3

Armrest adjustment

4

Seat heating ON / OFF

5

Lumbar support, inflate / deflate the air chambers

6

Fore-and-aft position adjustment of the seat

7

Cushioning effect adjustment

8

Fore-and-aft position adjustment of the complete drivers seat

9

Longitudinal / horizontal cushioning adjustment

10

Inclination adjustment of the seat

11

Headrest height and inclination adjustment

– set the control lever to "0"

Fig. 2-19:

2-18

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation Fire-extinguisher

Handling

(optional equipment)

 Pull out safety pin (2, Fig. 2-21:).

The excavator cmay be equipped with a fireextinguisher (arrow, Fig. 2-20: and Fig. 2-21:).

 Press down button (3) firmly and release.  Operate the extinguishing gun.

After fire-fighting, the extinguisher must be refilled Immediately and prepared ready for use.

Inspection Have fire-extinguishers inspected regulary by an expert. This is required by the authorities and the insurance companies, but also for your own safety.

Have the fire-extinguisher checked at the prescribed intervals by authorized testing institutes.

Fig. 2-20:

The excavator driver and the maintenance personnel must inform themselves about how to handle the fire-extinguisher in order to be able to act fast and efficiently in case of beginning fires. Such instruction should be given by a qualified instructor.

Extinguishing agent Each filre-extinguisher is filled with 12 kg (26.4 lb) of Glutex. This extinguishing agent is used for fighting fires of classes A, B and C. Fires are extinguished fast, perfectly and without residues.

Fire extinguishing system (optional) The automatic fire extinguishing system prevents fire from spreading. It is, however, assumed that that the machine be thoroughly cleaned of combustible and easily flammable substances.

Inspection Have the extinguishing system inspected regularly by an expert. This is required by authorities and insurance companies and is in the interests of your own safety.

Have the extinguishing system check at the prescribed intervals by authorized testing institutes.

Fig. 2-21:

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2-19

OPERATING INSTRUCTIONS RH 70 Operation MONITORING, WARNING AND CONTROL ELEMENTS

Fig. 2-22:

2-20

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OPERATING INSTRUCTIONS RH 70 Operation (Fig. 2-22:) BCS (optional)

No.

Element

Function

1

BCS

Electronic measuring-data collection and processing system

Collection of essential operating data of the excavator

2

Monitor

BCS

Displays the data collected.

Gives warnings and provides help, if desired.

3

UP button

Selects the BCS program Positions the Cursor

4

DOWN button

Selects the BCS program Positions the Cursor

5

ENTER button

Confirms a program Activates a desired program

6

BACK button

Recalls the Service Menu

7

HOLD button

Freezes actual service data

8

Print button

Recalls the Print Menu

9

SERV. button

Recalls the Service Menu

10

HELP button

Recalls the Help Menu

11

BL + button

Adjusts BCS monitor background lighting

12

BL - button

Adjusts BCS monitor background lighting

BA RH70(3 720 820.01)-EN

Symbol

2-21

OPERATING INSTRUCTIONS RH 70 Operation

Fig. 2-23:

2-22

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation (Fig. 2-23:)

No.

Element

Function

31

Button

32

Key-switch

Switches the electrical system on and off

33

Buzzer

Gives an acoustic warning signal if a fault is reported

Emergency OFF

Symbol

Shuts off the whole electrical system

Coolant level (engine) too low

Hydraulic reservoir shut off valves closed

Hydraulic oil level too low

Swing pump temperature too high

Working pump (1 and / or 2) contaminated

Swing pump contaminated Lower the equipment to the ground and shut off engin immediately if the buzzer (33) sounds.

The buzzer (33) continues to sound until the fault has been retified.

BA RH70(3 720 820.01)-EN

2-23

OPERATING INSTRUCTIONS RH 70 Operation

Fig. 2-24

2-24

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation Fig. 2-24

No.

Element

41

Warning lamp

Warning

Diagnostic lamp, indicates engine faults when flashing (see Engine-OperatingManual).

Contact Terex|O&K after-sales service or engine manufacturer.

42

Warning lamp

STOP

Warning lamp is lit up in the event of an general engine fault. Flashing (see EngineOperating-Manual).

Contact Terex|O&K after-sales service or engine manufacturer.

43

Warning lamp

ENGINE PROTECTION

49

BA RH70(3 720 820.01)-EN

Function

Symbol

Maintenance-Indicating-Lamp; is lit up when engine maintenance work is to carry out. (see Engine-Operating-Manual).

Switch off with switch Position 65 after finishing maintenance work.

Not connected

2-25

OPERATING INSTRUCTIONS RH 70 Operation

Fig. 2-25:

2-26

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation Fig. 2-25: Symbol

No.

Element

61

Button

Start

Starts the engine

62

Button

Stop

Shuts off the engine

63

Switch

Idling

Shuts off the engine with 5 minutes`after run.

64

Switch

Preheating, fuel (optional)

Lit when the preheating system is switched on.

65

Button

Reset

Resets warning lamp position 43

66

Speed adjustment

Potentiometer

Adjusts the engine speed

67

Function

Turn CCW to limit stop:

idling speed

Turn CW to limit stop: speed

full-load

Button

BA RH70(3 720 820.01)-EN

2-27

OPERATING INSTRUCTIONS RH 70 Operation

Fig. 2-26:

2-28

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation Fig. 2-26: No.

Element

71

Switch

Symbol

Function Superstructure hol- Blocks the superstructure ding brake Actuate switch only when the excavator is stationary.

Do not use as service brake.

72

Switch

Windscreen wiper Activates permanent / intermittent wiping (front window)

73

Switch

Screen washer

Activates the wipe / wash function

74

Switch

Undercarriage holding brake

CCW: brake permanently applied The excavator can not be driven CW:

Every time the excavator stops, the undercarriage brake is automatically applied after approx. 8 sec.

The undercarriage brake is automatically released when the travel function is activated.

Actuate switch only when the excavator is stationary. Do not use as service brake.

75

Switch

76

Cigarette lighter

77

Switch

BA RH70(3 720 820.01)-EN

ECO trol)

(Power

Engine speed duction

Con- Adjusts the hydraulic power (flow rate) CCW – 80 % of hydraulic power CW – 100 % of hydraulic power

re- CCW:

normal operation with automatic diesel engine speed reduction; active during operation pauses.

CW:

automatic speed reduction off

2-29

OPERATING INSTRUCTIONS RH 70 Operation

Fig. 2-27:

2-30

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation Fig. 2-27: No.

Element

Function

81

Switch

Not connected

82

Switch

Lighting

83

Switch

Windscreen wiper Activates permanent wiping rear window (optional)

84

Switch

Beacon (optional)

Switches the beacon on and off.

85

Switch

Floodlamps

Switches on the floodlamps on the driver´s cab

86

Switch

Floodlamps

Switches on the floodlamps on the platform

87

Switch

Floodlamps

Switches on the floodlamps on the counterweight

88

Switch

Floodlamps

Switches on the floodlamps on the boom

BA RH70(3 720 820.01)-EN

Symbol

Switches the cab lighting on and off.

2-31

OPERATING INSTRUCTIONS RH 70 Operation

Fig. 2-28:

2-32

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation Fig. 2-28: No.

Element

Function

91

Switch

Not connected

92

Switch

Not connected

93

Switch

Not connected

94

Switch

Not connected

95

Key

RESET

96

Key

Emergency lowering Emergency lowering of working equipment after engine break down.

97

Switch

Not connected

98

Switch

Not connected

BA RH70(3 720 820.01)-EN

Symbol

Activate after a fault in the central lubricating system

2-33

OPERATING INSTRUCTIONS RH 70 Operation

Fig. 2-29:

2-34

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation Fig. 2-29: No.

Element

Function

101 Key

Not connected

102 Key

Not connected

103 Key

Boom floating posi- If actuated: boom cylinders are pressurized when retion tracted

Symbol

Actuate key (103) only when control lever (116) is in “0“ position.

104 Key

Warning signal

Activates the horn

105 Key

Servo control

Switches the servo control on and off.

111 Pedal

Opens / closes the bottom-dump bucket.

Bottom-dump bucket (only for loading shovel equipment)

112 Pedal

Travelling, left track

forwards / reverse

113 Pedal

Travelling, right track

forwards / reverse

115 Control lever

Lifts and lowers the bucket / backhoe bucket stick; Slews and brakes the superstructure.

116 Control lever

Raises and lowers the boom; Tipping and rearward tilting of bucket resp. backhoe bucket.

BA RH70(3 720 820.01)-EN

2-35

OPERATING INSTRUCTIONS RH 70 Operation

Fig. 2-30:

2-36

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation Fig. 2-30: No.

Element

Function

121 Radio

(optional)

123 Lever

Locking console

the

left Lever vertical – console locked.

Pushed forward – locking released.

Console can be displaced.

124 Lever

Locking console

the

right Lever vertical – console locked.

Pushed forward – locking released.

Console can be displaced.

127 Antenna

(optional)

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Symbol

2-37

OPERATING INSTRUCTIONS RH 70 Operation

Fig. 2-31:

2-38

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation Fig. 2-31: No.

Element

Function

131 Monitoring device

Engine monitoring

Indicates different parameters on the display (E) Use push buttons (C and D) to scroll through parameter list.

Indicator lamps (A and B) lit when an active fault occurs.

132 Thermometer

Engine temperature

Indicates the cooling-water temperature

133 Pressure gauge

Engine oil pressure

Indicates the oil pressure in the diesel engine lubricating system

134 Warning device

Engine monitoring

Gives an acoustic warning signal if a fault is reported

Engine oil pressure too low

Engine temperature too high

Symbol

Lower the equipment to the ground and shut off engin immediately if the warning device (134) sounds. The warning device (134) continues to sound until the fault has been retified.

135 Warning lamp

Not connected

136 Warning lamp

Not connected

137 Warning lamp

Not connected

138 Warning lamp

Not connected

139 Warning lamp

Cooling water level

Lits up when the cooling-water level is too low

140 Warning lamp

Cooling water temperature

Lits up when the cooling-water temperature is too high

141 Warning lamp

Engine oil pressure

Lits up when the engine oil pressure is too low

142 Warning lamp

Alternator

Lits up when the batteries are not recharged

145 Thermometer

Distributor gearbox

Lits up when the temperature in the distributor gearbox is too high.

BA RH70(3 720 820.01)-EN

2-39

OPERATING INSTRUCTIONS RH 70 Operation

Fig. 2-32:

2-40

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation Fig. 2-32: No.

Element

Function Lits up when the swing pump is contaminated with metal particles.

151 Warning lamp

Swing pump contaminated

152 Warning lamp

Swing pump tempe- Lits up when the temperature in the swing pump is too high rature

153

Hydraulic reservoir

Warning lamp

Symbol

Lits up when the shut-off valves in the hydraulic reservoir are closed.

The engine cannot be started when one of the shut-off valves is closed.

Closing one of the valves while the engine is running stops the engine.

154 Warning lamp

Idle-Auto

Lits up when the automatic speed reduction function is activated (speed reduced to idling when the pilot control valves remain inactivated for abt. 10 seconds).

155 Warning lamp

Hydraulic oil level

Lits up when the the hydraulic oil lecel is too low

156 Warning lamp

Min. fuel

Lits up when the fuel has been used up, so that there is only the fuel reserve (abt. 115 l / 30.8 gal) left

157

Track parking brake

Lits up when the parking brake is applied.

The parking brake is automatically applied when the machine is stationary.

Indicator lamp

BA RH70(3 720 820.01)-EN

The parking brake is automatically released when the "Travel" function is active.

2-41

OPERATING INSTRUCTIONS RH 70 Operation

Fig. 2-33:

2-42

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation Fig. 2-33: No.

Element

Function

158 Warning lamp

Main pump 1 con- Lits up when the main pump is contaminated with metal particles. taminated

159 Warning lamp

Main pump 2 con- Lits up when the main pump is contaminated with metal particles. taminated

160 Warning lamp

Servo control ON

161 Warning lamp

ECO trol)

162 Warning lamp

Hydraulic oil filter Lits up when the flow resistance in the filter is too high. contaminated

163 Indicator lamp

Preheating, fuel (optional)

Lit when the preheating system is switched on.

164 Warning lamp

Superstructure holding brake

Lit when the holding brake is applied.

(Power

Lits up when the servo control is switched on.

See key position (105)

Con- Lits up when the hydraulic power rate is adjusted to 80 % See switch (75)

The holding brake is automatically applied when the superstructure is stationary.

The holding brake is automatically released when the "Swing" function is active.

165 Indicator lamp

Lubrication ON

Lit when the lubricating system is on (see "Central lubricating system")

166 Warning lamp

Lubricating system, malfunction

Lits up when a fault in the lubricating system occurs

167 Warning lamp

Grease container

Lits up when the grease container is empty

168

Not connected

169

Not connected

170

Not connected

171

Not connected

172 Thermometer

BA RH70(3 720 820.01)-EN

Hydraulic oil

Symbol

Indicates hydraulic oil temperature in hydraulic tank

2-43

OPERATING INSTRUCTIONS RH 70 Operation

Fig. 2-34:

2-44

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation Fig. 2-34: No.

Element

Function

182 Control unit

Heating (optional)

191 Rotary switch

Venting

Switches the fan (3 stages)

192 Rotary switch

Mode

Switches the Heat, Vent, Cool, Defrost mode

193 Adjusting knob

Thermostat

Adjusts from cool to warm

BA RH70(3 720 820.01)-EN

Symbol

2-45

OPERATING INSTRUCTIONS RH 70 Operation

2-46

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation PUTTING THE MACHINE INTO OPERATION

Fuel level in fuel tank The fuel level is visible in the inspection glas (6, Fig. 2-35:).

Prior to your dailiy start-up, make sure the machine has been cleaned of combustible and easily flammable substances.

Otherwise, increased fire and explosion hazard will exist.

Refuelling Refuelling - Safety instructions Explosion hazard Avoid open flames and stop smoking.

Fuels and fuel gases are inflammable. Risk of fire.

Fig. 2-35:

Fuel may cause skin injury. Wear protective gloves or use a barrier cream.

Stand working equipment on the ground.

Filling in fuel

Shut off the engine.

Do not spill fuel and do not allow fuel to penetrate into the soil. Fuel pollutes the environment.

Wipe off spilt fuel immediately with cleaning rags or soak up with binding agents.

Fuel and cleaning material must be disposed of without polluting the environment.

Report fuel accidents immediately to the user or his representative.

Grounding straps can remove voltages and prevent fire during refuelling only when properly fastened.

Fig. 2-36:

 Unscrew cap of filler tube (2, Fig. 2-36:).  Fill in fuel through the filter sieve in the filler tube.

Do not remove the sieve.

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2-47

OPERATING INSTRUCTIONS RH 70 Operation Quick refuelling The express coupling (1, Fig. 2-37:) for quick refulling is located behind the step-ladder.

Refuelling with the refuelling system (optional) The refuelling system (1, Fig. 2-38:) is installed besides the step-ladder.

Fig. 2-37:

 For filling in fuel, unscrew the cap of the express coupling.  Attach express coupling of filling hose from the service vehicle to the express coupling.  Fill in fuel.

Fig. 2-38:

The refuelling system consists of an electrical pump,filling hose, switch box (2, Fig. 2-39:) and key-switch (3).

 When the fuel tank is filled, take off filling hose and refit cap on the express coupling.

Fig. 2-39:

Check before refuelling that the earthing strap (4, Fig. 2-39:) is attached to the chassis. Sparking caused by static or electric charges may set fuel on fire.

2-48

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation Using the refuelling system  Unscrew cap (16, Fig. 2-40:) from express coupling (17).  Attach filling hose (18) to express coupling (17) and introduce into the fuel barrel. The electrical pump of the refuelling system is switched on with key-switch (14).

Switching the electrical system on and off The electrical system is switched on with keyswitch (32, Fig. 2-41:). Insert key into key-switch and turn to the right.

Switch on electrical pump only after the filling hose with the micro-filter has been immersed into the fuel barrel.

Fig. 2-41:

Fig. 2-40:

It is recommended to use a micro-filter in the filling line.Fuel should always be filled in through a screen.

Prior to initial commissioning or after repairs on the refuelling system carry out the following works: Â Loosen elbow union (12, Fig. 2-40:) and fill pump (11) with fuel. Â Retighten elbow union (12).

BA RH70(3 720 820.01)-EN

2-49

OPERATING INSTRUCTIONS RH 70 Operation STARTING AND STOPPING THE ENGINES Starting the engine

 Press button (61).

Release button (61) as soon as the engine has fired.

Allow engine to run at idling for at least 5 minutes before running it at full load

Start and operate combustion engines only on well-ventilated premises;

In closed rooms, exhaust gases must be evacuated to the outside.

Do not work on the exhaust system an do not make any modifications to it; Exhaust gases from diesel engines and some of their constituents may cause cancer, birth defects and other reproductive harm.

Repeat the starting procedure if the engine does not fire. Repeat starting procedure not more often than 3 to 4 times. Do not operate the starter for more than 10 seconds.

Shut off engine immediately :

if the monitoring device (131, Fig. 2-43:) shows a malfunction of the engine after starting,

if an acoustic warning sounds from the warning device (134)

and / or if the warning lamp

hydraulic system (135)

alternator (142)

lits up.

Locate cause of the fault and rectify before restarting the engine.

Fig. 2-42:

 Turn speed control knob (66, Fig. 2-42:) counter-clockwise to the limit stop (idling).  Insert key into key-switch (32) and turn right.

Fig. 2-43:

2-50

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation Shutting off the engine

Emergency - stop

During interruptions of the work and after the work, stand working equipment on the ground.

In case of emergency, e.g. if buzzer (33, Fig. 2-45:) and / or warning device (134), sounds, the engine can be shut off from full load.

Do not shut off engine before the working equipment rests on the ground.

 Turn speed control knob (66, Fig. 2-42:) counter-clockwise to the limit stop (idling).

To do so: Â Depress stop-button (31) (the whole electrical system is switched off). Â Turn key in key-switch (32) counter-clockwise and withdraw.

Do not shut off the engine out of full load. The engine should be run at no more than one-half of the rated rpm for another 5 minutes to allow the lubricating oil and the cooling liquid to dissipate the combustion heat from the combustion chamber and from bearings and shafts.

 Depress key (62).  Turn key in key-switch (32) to position "0" (electrical system without current).

Fig. 2-45:

Fig. 2-44:

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2-51

OPERATING INSTRUCTIONS RH 70 Operation Heating (optional) Control unit The control unit is located in satellite (182, and )

1

Indicator lamp

heating ON

2

Indicator lamp

blower ON

3

Indicator lamp

heating

4

Indicator lamp

cooling

5

Indicator lamp

Automatic ON

6

Switch

Automatic ON / OFF

7

Switch

Function “Cooling” ON-OFF

8

Switch

Function “Heating” ON-OFF

9

Switch

Heating ON-OFF

Fig. 2-46:

Fig. 2-47:

2-52

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation Heating (optional) Control panel (Greentop)

Fig. 2-48:

BA RH70(3 720 820.01)-EN

1

Indicator lamp

Lights up when the heating is switched on

2

Indicator lamp

Lights up when the blower is running

3

Indicator lamp

Lights up when the heating works

4

Indicator lamp

Lights up when the blower is switched on

6

Switch

Switches heating on / off

7

Switch

Selects the intensity level of the blower (3 levels)

11 Indicator lamp

Lights up when the first blower level is selected

12 Switch

Lights up when the second blower level is selected.

13 Switch

Lights up when the third blower level is selected

21 Display

Shows selected function of the heating

2-53

OPERATING INSTRUCTIONS RH 70 Operation Heating (optional) Control panel (Greentop) (Fig. 2-49:)

Fig. 2-50:

Fig. 2-49:

1

Indicator lamp

lights up when the heating is on

2

Indicator lamp

lights up when the blower is running

3

Indicator lamp

lights up when the heating heats

4

Indicator lamp

lights up when the blower is running

6

Switch

switches the heating on and off

7

Switch

selects the intensity level of the blower (3 levels)

11 Indicator lamp

lights up when the first blower level is selected

12 Indicator lamp

lights up when the second blower level is selected.

13 Indicator lamp

lights up when the third blower level is selected

21 Display

Shows the selected function of the heating

The ball valves (1, Fig. 2-50:) in the feeding- and the return pipeline to the air conditioner unit must be opened (levers are in longitudinal direction).

The ball valves (1) are accessible from the bottom.

2-54

Control panel (Sigma)

Fig. 2-51:

1

Rotary switch

selects the intensity level of the blower (3 levels)

2

Rotary switch

selects the desired control function (heating, cooling, ventilation, defrosting)

3

Thermostat

sets the desired temperature inside the cab

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation DRIVING SAFETY INSTRUCTIONS Have the attachment raised only so far as to permit the machine to be driven under overhead power lines without any risk.

Close the cab door.

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

If the superstructure is turned by more than 90° from the BASIC POSITION, the excavator travels in the opposite direction to that selected.

If the position of the superstructure in relation to the undercarriage is not exactly known, touch the accelerator

Fig. 2-53:

Running-in specifications for components of the crawler tracks: Prior to initial commissioning and/or after repair work, run in the idlers, track rollers and support rollers as follow:

Lightly to see which direction the machine takes, before initiating the full travelling movement.

 Raise the equipment (Fig. 2-52:and Fig. 2-53:)

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

 Drive the excavator in revers approx. 50 m (164ft).

Never drive across slopes.

 Drive the excavator in forwards approx. 50 m (164ft).

Take the utmost care on slippery, greasy ground.

 Stop the excavator.  Measure the temperature at each dler, track roller and support roller with an infrared thermometer. (at a temperature of approx. 100° C / 212 °F) wait for idlers, track rollers and support rollers to cool down).  Repeat this running-in procedure up to 10x.  Check all idlers, track rollers and support rollers for leaks.

The engines must be at operating temperature before being subjected to full load.

Fig. 2-52:

BA RH70(3 720 820.01)-EN

If the machine is to be driven a longer distance, the superstructure must be secured against turning by means of the superstructure holding brake.

2-55

OPERATING INSTRUCTIONS RH 70 Operation TRAVELLING

Travelling forwards/backwards

Superstructure basic position

Travelling forwards:

Travel direction and sense of actuation of pedals (112 and 113, Fig. 2-55:) are identical only when the excavator is in its BASIC POSITION (Fig. 2-54:).

 depress pedals (112 and 113) forwards.

The excavator travels in the direction of the idler (2, Fig. 2-54:).

Travelling backwards: Â depress pedals (112 and 113, Fig. 2-55:) backwards.

The excavator travels in the direction of the drive sprocket (4, Fig. 2-54:).

During travelling an acoustic warning appears (Travel-Alarm).

Fig. 2-54:

If the superstructure is slewed out of its basic position by more than 90° (Fig. 2-56:), the excavator moves in a direction opposite to that expected when pedals (112 and 113, Fig. 2-55:) are depressed.

Fig. 2-56:

The pedals return automatically to their "0" positions when released.

Reverse the excavator only over short distances and with the assistance of marshallers because of restricted rear-view conditions.

Do not travel across slopes.

Fig. 2-55:

If the operator is not completely sure of the position of the superstructure with regard to the undercarriage, pedals (112 and 113) should be depressed slightly in order to find out which way the excavator moves before initiating the full travelling movement.

2-56

When travelling uphill or downhill, the travel drive must always be at the rear. Travel only in the basic position of the excavator and only forwards.

Be extremely careful on slippery and greasy ground.

All instructions with regard to travelling speed regulation and travel direction control are applicable only as long as the crawler tracks have sufficient grip and do not slip.

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation Regulating the travelling speed Travelling on level ground.

Regulate the travelling speed with

Travelling uphill and downhill Read and observe the "Travelling Safety instructions" chapter.

 pedals (112 and 113, Fig. 2-57:) and  the engine speed control.

 Depress padals (113 and 113,) fully to the limit stop.  Regulate the travel speed only with the engines speed control.

When travelling downhill, the travel retarder valve acts as a speed limiter.

The travel retarder valve works correctly if pedals (112 and 113) are fully depressed down to the limit stop.

Should the travelling speed become too high when travelling downhill release pedals (112 and 113) to stop the excavator.

Fig. 2-57:

Cornering To take a right-hand corner forwards  depress only pedal (112,) forwards.

To take a lefthand corner forwards  depress only pedal (113) forwards.

Turning To turn to the right  depress pedal (112) forwards and pedal (113) backwards To turn to the left  depress pedal (113) forwards and pedal (112) backwards.

BA RH70(3 720 820.01)-EN

2-1

OPERATING INSTRUCTIONS RH 70 Operation Note Change the position of the undercarriage - parallel or perpendicular to the working face - only by cornering forwards/backwards (Fig. 2-58:).

The same procedure should be adopted if the excavator is to be driven out of depressions (Fig. 2-59:): Cornering to the left

from pos. 1 to pos. 2

Cornering to the right

from pos. 2 to pos. 3

Never use the working equipment to raise one side of the undercarriage and then turn the undercarriage by initiating the swing and/or the travelling function.

This way of working is contrary to the excavator'sdesignated use.

There is a risk of accident. Moreover, the tracks, swing gear, roller bearing swing ring, backhoe or bucket back-wall and the front part of the bucket are subjected to inadmissibly high stresses.

Fig. 2-58:

Cornering to the left: forwards

from pos. 1 to pos. 2

backwards

from pos. 2 to pos. 3

forwards

from pos. 3 to pos. 4

Fig. 2-59:

2-2

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation Travelling over long distances Read and observe the "Travelling – Safety instructions" chapter.

Backhoe bucket equipment (Fig. 2-61:) Â Fully extend boom cylinder 1. Â Retract backhoe cylinder 2. Â Retract stick cylinder 3.

Travel only forwards with the excavator in its basic position.

 Extend backhoe cylinder 2 and stick cylinder (3) to such an extent as to reach the position of the equipment shown in Fig. 2-61:

When travelling, pay attention to sufficient headroom, e. g. under

cable bridges

high-tension cables.

Keep the loading or the backhoe bucket close to the ground (Fig. 2-60: / Fig. 2-61:). For a more uniform loading of the tracks, the equipment must, howe-ver, be kept at a steep angle.

Fig. 2-61:

Lower the equipment when travelling underneath obstacles.

If the equipment position must be changed:  stop the excavator  change the position  continue to travel.

Fig. 2-60:

Loading bucket equipment (Fig. 2-60:) Â Fully extend boom cylinder (1).

After travelling for 15 minutes without interruption, stop the excavator and check the temperatureof the track rollers.

 Extend bucket cylinder 2.

If the temperature does not exceed ca. 100°C / 212°F:

 Extend stick cylinder 3.

 continue travelling.

 Retract bucket cylinder 2 and stick cylinder (3) to such an extent as to reach the position of the equipment (Fig. 2-60:).

In case of higher temperatures:

BA RH70(3 720 820.01)-EN

 Stop travelling. Resume travelling only after the track rollers have cooled down to ca. 40°C / 104°F.

2-3

OPERATING INSTRUCTIONS RH 70 Operation Locking the superstructure

Track parking brake The excavator is equipped with two track brakes integrated in the track drives.

The superstructure can only be locked in the BASIC POSITION.

The track brakes are parking brakes which relieve the hydro-static travel drives during working operation and which protect the excavator against rolling forwards and backwards.

Lock the superstructure and the undercarriage

when travelling over longer distances (more than 1 km)

during transport. Locking the superstructure (Fig. 2-62:)

To do so: Â Take locking bar (18) out of the tool box. Â Slew superstructure slowly until the hole in superstructure is in alignment with with lugs (16). Â Push locking pin (18) and recure with screws.

Fig. 2-63:

The brakes are controlled by means of the travel pedals (112 and 113, Fig. 2-63:). In neutral position of the pedals, the brakes are applied and the excavator is braked. During travelling, the brakes are released.

Fig. 2-62:

After travelling or after transport, Â remove locking pin and place back into the tool box.

Fig. 2-64:

When the excavator is stationary, the brakes can be applied with switch (74, Fig. 2-64:).

2-4

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation TRANSPORTING THE MACHINE Transport

Transport - Safety instructions The machine must be loaded and transported only after all safety regulations have been observed and complied with.

Entrust loading and transporting of the machine to a company experienced in the transport of heavy equipment.

The responsability for loading and transporting lies with the transport company or their representative.

Remove oil, grease, soil, mud, snow, ice and other materials from the excavator's crawler tracks and from ramps and loading platforms of the transport vehicle to minimize slipping.

Secure the transport vehicle against rolling away.

Use only tying equipment of sufficient strength (the weights and dimensions of the excavator are set out in the "Technical specifications").

The dimensions and the service weight of the fully assembled excavator do not allow the excavator to be transported in an undismantled state on a low-bed trailer over public roads.

Therefore, the following components and modules must be dismantled beforehand:

counterweight,

driver's cab,

excavating tool (loading bucket, backhoe bucket),

stick,

boom.

The partly dismantled excavator can now be transported on a semi low-bed trailer (low-bed trailer with front platform).

With the driver's cab dismantled, the excavator can only be moved when using the cable remote control. See brochure: "Operating Instructions Cable Remote Control RH70".

The dismantled components and modules must be transported on vehicles or low-bed trailers of sufficient size and carrying capacity. Â Lock the superstructure (Fig. 2-65:).

Fig. 2-65:

Unlock the superstructure before swinging it for the first time.

BA RH70(3 720 820.01)-EN

2-5

OPERATING INSTRUCTIONS RH 70 Operation WORKING OPERATION SAFETY INSTRUCTIONS Read the sections "Fundamental safety instructions" and "Operation, safety instructions" carefully and observe the instructions given in them.

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 initiating inadvertent movements.

Running-in instructions for hydraulic cylinders Compression of an oil/air compound in a hydraulic cylinder may result in detonations which might damage pistons and sealing rings.

Prior to initial commissioning and/or after repairs, run in the hydraulic cylinders as follows:

Start up the engines and run at low speed.

The pressure-limiting valve in the hydraulic system must not respond

In the first two working cycles, retract and extend the pistons of the hydraulic cylinders to max. ½ to ¾ (not to the limit stop).

Never change direction suddenly. The waiting time between changes of direction must be at least 4 seconds.

In the next eight working cycles, retract and extend the pistons of the hydraulic cylinders to the limit stop. The waiting time between changes of direction must be at least 4 seconds.

When all hydraulic cylinders have been run in, the excavator can operate at a higher engine speed.

Sound the horn to warn persons in the immediate vicinity before starting work.

Stop work if anyone is in the hazard range of the machine. Make sure they have left the hazard range before resuming work.

Never operate the machine unless it is standing on a reasonably horizontal, flat surface. The stability of the machine is otherwise at risk.

Ensure that the attachment has adequate clearance below overhead power lines and structures.

Trenches and working faces may give way. Keep well clear of them.

2-6

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation

At low temperatures, bring the engines down to moderate speed, then activate all hydraulic functions for about 10 minutes (bring to service temperature). For further instructions, see section "Lubricants".

If the warning lamps for engine temperature, engine oilpressure, coolant level, alternator or hydraulic oil filter control (with hydraulic oil at service temperature) light up: Lower the working equipment and shut off engine.

Parts of the attachment may damage the machine if they are moved into extreme positions (see illustration Fig. 2-66- Fig. 2-70)

Fig. 2-68

Work carefully, avoiding extreme positions of this kind.

Fig. 2-69 Fig. 2-66

Fig. 2-70 Fig. 2-67

BA RH70(3 720 820.01)-EN

2-7

OPERATING INSTRUCTIONS RH 70 Operation Before starting work

Prior to initial commissioning and after repairs on the central lubricating system or the hydraulic cylinders, move the unloaded equipment for abt. 5 minutes.

This is required to ensure an adequate supply of grease to the cylinder bearings when the work starts.

Warming up At low outside temperatures it is necessary to run the hydraulic system up to operating temperature.

The temperatures at which warming up is necessary depend on the type of hydraulic oil used; see: also "Oils for hydraulic systems". Â Run the diesel engine at ca. 2/3 full speed and start to perform no-load working movements for abt. 10 minutes with the excavator.

Swinging and braking the superstructure Swinging the superstructure Swinging is possible only when the superstructure swing brake is released. Â To slew the superstructure to the right shift control lever (115, Fig. 2-71:) to the right. Â To slew the superstructure to shift control lever (115) to the left.

the

left

After releasing, the control lever returns automatically to position "0".

Braking the superstructure The superstructure is braked when control Lever (115, Fig. 2-70) is shifted into the opposite direction (countering).

 To brake a swinging movement to the right shift control lever (115) to the left.  To brake a swinging movement to the left shift control lever (115) to the right.

Fig. 2-71:

Switching on the servo control The servo control is switched on and off with switch inside the drivers seat (105, Fig. 2-71:).

Servo control activated: operator is sitting on his seat.

Servo control deactivated: driver's seat is empty.

2-8

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation Superstructure holding brake

Fig. 2-72:

Switch on the "hold" function of the superstructure holding brake with push button (71, Fig. 2-72:).

Depress button (71) only when the superstructure is stationary.

The superstructure holding brake must not be used to brake the superstructure movement.

The superstructure holding brake is released automatically when the "superstructure swing" function is activated.

BA RH70(3 720 820.01)-EN

2-9

OPERATING INSTRUCTIONS RH 70 Operation Working

Raising and lowering the boom

When released, all control levers for working operation return automatically to position "0".

To raise the boom:

Level a surface only in the bucket's digging direction. Never "beat" or "sweep" with the bucket.

Close bucket completely before beginning to dig. Do not level off a surface with the front shell of the bucket open.

 pull control lever (116, Fig. 2-73:) backwards.

To lower the boom: Â push control lever (116) forwards.

To lower the boom with pressure: Â depress button (103) and push control lever (116) forwards.

Extending and retracting the bucket or backhoe bucket stick To extend the stick: Â push control lever (115) forwards.

To retract the stick: Â pull control lever (115) backwards.

Fig. 2-73:

Filling and emptying the bucket or the backhoe To fill/tip back the bucket: Â shift control lever (116) to the left.

To empty the bucket by dumping/tipping: Â shift control lever (116) to the right.

Opening and closing the bottom-dump bucket To open the bucket: Â press pedal (111) forwards.

To close the bucket: Â press pedal (111) backwards.

2-10

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation Emergency lowering of working equipment In case of engine break down during working procedures the working eqipment can be lowered to ground hydraulically.

The operator must sit on his seat, the push button (105) inside the seat for engaging the servo control is then activated. Â Depress and hold button (96, Fig. 2-74:), Â lower working equipment to ground by using the control levers, Â release button (96), Â Repair faults immediately or have them repaired.

After daily operation Parking the machine  Park the machine on level and stable ground. This is particularly important in winter to avoid freezing of the tracks.  Stand the working equipment on the ground.  Shut off the engine.  Shift both control levers into all directions todepressurize the hydraulic cylinders.  Withdraw the key from the electrical system key-switch.  Close the cab window.  Lock the cab door and all lockable hatches and covers on the machine.  Clean the machine of coarse dirt as well as of combustible and easily flammable substances, if possible with a stream jet (rubber parts and electric components with compressed air - refer to information label) Otherwise, the fire and explosion hazard will exist.  Fill up the fuel tank.  Inspect the engine, the hydraulic system, the track rollers, support rollers, idlers and gearboxes visually for leaks.

Escaping oil pollutes the environment.

Fig. 2-74:

Repair leaks immediately (or have them repaired). Report oil accidents to the user of the machine. Â Check the superstructure, undercarriage and the working equipment for damage and all steel components for cracks or fractures. Â Report detected damage immediately to the user. Â Clean off gross dirt, ice and snow from the fins and the fan wheel of the hydraulic oil cooler.

BA RH70(3 720 820.01)-EN

2-11

OPERATING INSTRUCTIONS RH 70 Operation ASSEMBLING WORKING EQUIPMENT - SAFETY INSTRUCTIONS

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

If such know-how is lacking, meticulous instruction must be given by experienced personnel, e.g. from Terex|O&K. 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.

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

Metal splinters 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 only the steps, platforms 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.

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

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.

Personal protective gear and working clothes 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.

2-12

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation Securing the machine

Protective roof against falling objects

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

The machine is equipped with an integrated cabprotection roof (FOPS).

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 Terex|O&K for this type of machine.

Never install and commission other equipment and component combinations without Terex|O&K first having inspected and approved the project in writing.

BA RH70(3 720 820.01)-EN

2-13

OPERATING INSTRUCTIONS RH 70 Operation Securing the machine

Secure the machine as described below:

before carrying out any fitting and modification work on the working equipment,

The machine must not be started by unauthorized persons.

before carrying out any servicing and repair work on the machine.

Therefore, secure the machine.

To do so:

Observe the accident prevention regulations.

 Park the machine on level and stable ground.

Depressurize pipeline systems, on which work is to be carried out, by appropriate measures.

 Lock the superstructure.

Risk of injury.

Protective shrouds of moving machine parts may only be opened or removed when the drive unit is stationary and protected against inadvertent starting.

Before carrying out fitting works, the machine and the equipment must be protected against inadvertent starting by placing chocks under the tracks and by standing the working equipment on the ground.

Hydraulic and lubricating systems: Close all open bores, pipe and hose connections with pressure-resistant plugs.

 Stand the working equipment on the ground.  Shut off the engines.  Depressurize the hydraulic system.  Withdraw the key from the key-switch.  Before carrying out works on the electrical system or before performing welding work on the machine, set battery main switch to position "OFF".  Insulate the connecting terminals and plugs properly.

Refill collected hydraulic oil back into the hydraulic system only through the return-flow filters. Dispose of non re-usable oils without polluting the environment.

All components of Terex|O&K machines have been carefully purpose-coordinated. Trouble-free operation and a long service life can only be achieved with original Terex|O&K spare parts.

Respect the sequence of working operations when fitting or replacing the attachments. The sequence has been determined and tested by qualified experts.

2-14

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation CORROSION PROTECTION FOR PINS AND BEARINGS (BUSHINGS AND HUBS)

Use Voler A.C. anti-corrosive agent only.

Other agents are not approved by Terex|O&K

All pins and bearings (bushings and hubs) of the working equipment or in equipment componenents must be treated 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.

Application of Voler A.C. Â 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. Â 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. Â 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 gearready for fitting.

Apply Voler A.C. on the remaining length of pin shaft, fit pin and secure.

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. SN 0 271 554 - 0,5 l (16.9oz) spray can (CSC free) SN 1 438 473 - 0,5 kg (1.1lb) tin SN 1 438 219 - 4,5 kg (9.9lb) bucket Available from Terex|O&K Spare-Parts Service

BA RH70(3 720 820.01)-EN

2-15

OPERATING INSTRUCTIONS RH 70 Operation LIFTING OPERATIONS

Register the weight of the load. Sling only those loads not exceeding the load capacity of the lifting gear and of the machine

Safety instructions

Sling the load in such a way as to prevent it from slipping or falling while being lifted or transported.

Never use the machine for lifting-gear operation unless it is equipped and approved for this purpose, i.e. the machine must be equipped with an overload warning system and a pipe break protection.

Transporting the load Never move the load above persons. Keep the load as close as possible to the ground. Prevent the load from swinging

Read the sections "Fundamental safety instructions" and "Operation - safety instructions" with care and observe the instructions contained in them.

The machine must never be driven with a slung load unless the road surface is even and the roadway is clearly visible.

Switch the overload (see: "Technical data").

Roadway visibility can be improved by adjusting the boom and swinging the superstructure to the right.

warning

system

on.

Room for slingers Slingers must approach the working gear from the side when the load is slung.

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

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 loadcarrying device,

excessive deceleration or acceleration forces (hard braking or strong swinging with the load to be moved),

loads dropping into the cable,

oblique pull,

Use only tested and efficient lifting gear with an adequate load capacity.

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.

Never use the the teeth of backhoe buckets, shovels or grabs.

Cable lugs, thimbles or U-bolts may slip from the teeth, putting the load out of control.

2-16

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation Load-hooks on backhoe buckets.

Lifting capacity of the load hook

In order to be able to use the excavator with backhoe attachment also for short lifting operations, the backhoe buckets are available with welded load-hooks (Fig. 2-75: and Fig. 2-76:) (optional equipment).

The maximum lifting capacity of the load-hook is indicated besides the hook (Fig. 2-75: and Fig. 2-76:).

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

Switch on your overload warning system.

Lifting capacity of the excavator The admissible lifting capacity as a function of the working range is set out in the load table, see "Technical Data".

Fig. 2-76:

Fig. 2-75:

BA RH70(3 720 820.01)-EN

2-17

OPERATING INSTRUCTIONS RH 70 Operation Overload warning system

Checking the overload warning system

Hydraulic excavators that are used as lifting gear or for the transport of loads must be equipped with an overload warning system.

Check the overload warning system for safe operation before beginning to work with the loadhook.

The overload warning system consists mainly of an electro-hydraulic switching unit which gives an optical and an acoustic warning signal before the maximum admissible load moment is reached.

In case of malfunctions have the overload warning system immediately checked and repaired by Terex|O&K.

Do not switch off the overload warning system when the warning signal sounds.

The overload warning system must be on during lifting-gear operation.

Do not make re-adjustments or repairs of the overload warning system.

Re-adjustments or repairs might lead to incorrect operation or failure of the system.

The overload warning system only gives warning signals.

Putting the overload warning system out of operation

It cannot avert the danger of overturning.

When the warning signal sounds:

Shut off the overload warning system if the machine is to be used exclusively for digging.

let the load down immediately

reduce the working radius or the load.

In spite of the overload warning system, the operator must assure himself beforehand that the load to be lifted does not exceed the excavator's lifting capacity.

The admissible load moment is exceeded if too big a load is being lifted with a large working radius of the equipment (lifting capacity see: the "Lifting capacity of the excavator" section).

2-18

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation Pipe burst protection

Speed reduction function

The pipe burst protection prevents uncontrolled lowering of the working equipment if a hydraulic line to the boom cylinder bursts.

Do not activate the speed reduction function when the machine is used for lifting operations and during travelling.

The hydraulic port on the rod-side of the boom cylinder is blocked off so that the hydraulic oil in the cylinder can flow out only if the "boom lowering" function is activated.

The speed reduction function can cause the hydraulic output to drop off suddenly.

When a hydraulic line has broken: Â Warn persons in the vicinity of the machine by sounding the signal horn. Â Stop working.

The speed reduction sets the drive engine back to idling speed if the working equipment remains inactivated during more than 10 seconds.

 Secure the area within reach of the working equipment and the attached load.

Persons must be prevented from entering the hazard zone under the working equipment or the suspended load. Â Replace the broken hydraulic line or have it replaced before continuing the work. Â Absorb spilt hydraulic oil and dispose of oilsoaked cleaning rags, binding agents, etc. without polluting the environment.

Fig. 2-77:

Switching on the speed reduction: Â Set toggle switch to the left (77, Fig. 2-77:) Switching off the speed reduction: Â Set toggle switch (77) to the right.

BA RH70(3 720 820.01)-EN

2-19

OPERATING INSTRUCTIONS RH 70 Operation Hydraulic hammer Working with the hydraulic hammer - Safety instructions Nobody must stand in the hazard range of the hammer.

Risk of injury by splintering stones.

Stop the work immediately if persons enter the hazard range of the hammer or the machine.

Close the front window of the machine before putting the hammer into operation.

Mount a protective grid as a splinter protection.

Wear ear protectors.

Operate the hammer only when sitting in the driver's seat.

2-20

The power of the machine and that of the hydraulic hammer must be adapted to each other. In case of doubt, contact the Terex|O&K Service.

Do not change the setting of the pressure-relief valves without approval and do not remove lead seals.

Observe the operating instructions of the hammer manufacturer.

Stop the work immediately when oil losse are detected. Collect escaping oil and discard without polluting the environment.

Report oil accidents immediately to the user or his representative.

Repair leaks and damage immediately or have them repaired.

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Operation NOTES .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. ..............................................................................................................................................................................

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2-21

OPERATING INSTRUCTIONS RH 70 Operation

2-22

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing 3 INSPECTION AND SERVICING

Operating instructions

Part 1 INTRODUCTION FUNDAMENTAL SAFETY INSTRUCTIONS Part 2 OPERATION

Target group

Operating personnel + Inspection and servicing personnel + Repair personnel Operating personnel The operating personnel must have knowhow relevant to the operation and the application of this or comparable machines.

Part 3 INSPECTION AND SERVICING

Part 4 REPAIR WORK

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

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

Part 5 ANNEX

Part 6 INDEX

BA RH70(3 720 820.01)-EN

Operating personnel + Inspection and servicing personnel + Repair personnel Operating personnel + Inspection and servicing personnel + Repair personnel

3-1

OPERATING INSTRUCTIONS RH 70 Inspection and servicing

3-2

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing INSPECTION AND SERVICING SAFETY INSTRUCTIONS Operating manual No inspection and servicing work must be carried out until the operating manual has been read and understood.

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

The operating manual lists all jobs to be done. The descriptions of job sequences, however, provide only Experienced personnel with the necessary instructions.

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.

The necessary know-how can be acquired in a several day's instruction, e.g. by an Terex|O&K mechanic or by attending an Terex|O&K training course.

Personal protective equipment and working clothing

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

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 servicing work only if the machine is secured as described in the section "Securing the machine".

Climbing onto and off the machine Use only the ladders, steps, platforms and handrails provided when climbing onto or off the machine.

Always keep ladders, steps, platforms 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.

Checking the 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.

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, gloves and, in the event of high noise levels, ear protectors.

BA RH70(3 720 820.01)-EN

3-3

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Cleaning jobs

Fastening and securing elements

Prior to commencing work, clean your working area, if necessary and possible, with a stream jet (rubber parts and electric components with compressed air - refer to information label).

Check fastening and securing elements, e.g. bolts, nuts, washers, before using them again.

Use only lint-free cleaning rags when working on the hydraulic system or the engine.

Spare parts

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.

Replace any damaged parts.

Use only the original sparts parts of Terex|O&K. They are the only ones to fulfill the technical specifications of the machine.

Handling oils and greases

Prevent solvents and cleaning agents from coming into contact with your skin.

Hot lubricant or hydraulic oil emerging uncontrolled from the system may result in severe burns.

Wear gloves.

Never set foot withing reach of the emerging oil jet.

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.

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.

Use: Visisble oil losses

dry powder,

carbon dioxide or

Have any visible leakage repaired immediately.

foam extinguishers.

Escaping oil is an environmental hazard.

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 hazards.

Soak up any oil that has escaped with a binding agent.

Sweep up binding agent and dispose of it separately from other waste.

Notify the fire brigade.

3-4

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Relieving residual pressure in the hydraulic system Only unpressurized hydraulic systems may be opened. Even when a machine is parked on a horizontal surface with ist 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.

Residual pressure is reduced only gradually. If an intervention into the hydraulic system is to be undertaken immediately after stopping, the system must be depressurzized: (do not leave the driver's seat) Â Stand ground

working

equipment

on

the

 Shut off the engine

Screwed connections, piping, hydraulic hoses Repair any leakage 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 them.

Replace hydraulic hoses immediately on detecting any damage or moist areas.

Tighten leaking screw plugs only when the system is depressurized.

Escaping oil is an environmental hazard.

 Move all control levers and pedals repeatedly into all ndirections.

BA RH70(3 720 820.01)-EN

3-5

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Non-polluting disposal Dispose of oils, greases, cooling liquids, detergents, solvents and oil-containing components, such as filters, cleaning rags, replaced wearing parts and unusable machine parts, without polluting the environment and separately from other waste.

Do not dispose of these substances together with household wastes.

Fill these substances into the containers provided for such purposes.

Seals 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.

Engine exhaust gases Start and operate combustion engines only on well-ventilated premises;

Like any other oil, also bio-degradable, "environmental-friendly" hydraulic oil must be disposed of separately.

In closed rooms, exhaust gases must be evacuated to the outside;

Do not allow oils and oily wastes to penetrate into the soil or into water. They are an environmental hazard

Do not work on the exhaust system an do not make any modifications to it;.

Exhaust gases from diesel engines and some of their constituents may cause cancer, birth defects and other reproductive harm.

3-6

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Handling batteries

Before working on the electrical system

Battery Posts, terminals and related accessories contain lead and lead compounds, chemicals known to cause cancer and reproductive harm.

Wash hands after handling

Before performing work on the electrical system where tools, spare parts, etc. can come into contact with electrical conductors or contacts, the battery must be disconnected.

Batteries give off explosive gases.

Disconnect first the negative and then the positive terminal.

Never handle batteries close to naked flames and unshielded light sources, never smoke.

Battery acid is toxic and corrosive.

After the work: Reconnect first the positive and then the negative terminal.

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 running 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 watchstraps 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.

BA RH70(3 720 820.01)-EN

3-7

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Selecting oils and greases Use the recommended qualities only, matching viscosities with the temperature level.

After servicing To prevent corrosion, coat all bright metal parts with a grease film.

Filters

On completing work, re-install all protective devices.

Replace / clean all filter elements or filter cartridges within the specified periods.

Never start up the drive motors while work is being done on the machine.

All filters are coordinated carefully with the equipment. Original Terex|O&K parts must be used to ensure smooth running and a long service life of the engine and the hydraulic units.

Carry out performance tests with the machine.

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.

3-8

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing FIRE AND EXPLOSION HAZARD Safety Instructions Avoid smoking and open fire on, next to and below the machine.

Combustible and easily flammable substances or liquids increase the fire and explosion hazard.

Do not store such substances on the excavator.

Clean the excavator thoroughly, if possible, with a steam jet (rubber parts and electric components with compressed air - refer to information label), when, for example, oil, grease, fuel or cleaner was spilled.

Such substances may spontaneously ignite if they get into the vicinity of hot units or objects such as turbo superchargers.

Even battery gases can ignite in open flames or fire.

Avoid parking the excavator in places where

combustible substances such as coal dust or tar are present.

open or smouldering fire may occur.

Remove the excavator from such an area where combustible or easily flammable liquids have spilled from the excavator onto the ground.

Flying sparks may cause fire on the ground that can spread to the excavator.

BA RH70(3 720 820.01)-EN

3-9

OPERATING INSTRUCTIONS RH 70 Inspection and servicing ENVIRONMENTALLY COMPATIBLE HYDRAULIC FLUID Environmentally compatible hydraulic fluid - operating instructions The hydraulic system of this machine can be filled ex works with environmentally compatible, synthetic hydraulic fluid as an option. In this case, the machine is supplied with stickers containing the corresponding instructions.

For the initial filling, Terex|O&K uses only: PANOLIN HLP SYNTH 68 Terex|O&K (P/N: 2115005).

This synthetic hydraulic fluid has been tested by Terex|O&K and approved for application in Terex|O&K machines.

A change from mineral hydraulic oil to this synthetic hydraulic fluid can, however, be made also at a later date.

Environmentally compatible hydraulic fluid, too, must not be simply poured away but disposed of in the same way as used oil.

Operating equipment and attachments driven with mineral hydraulic oil must not be mounted until thoroughly emptied, cleaned and flushed.

Analysis will show whether the hydraulic fluid can be used beyond the standard changing intervals.

See section: "Environmentally compatible hydraulic fluid, sampling"

Environmentally compatible hydraulic fluid, conversion

Read and observe: "Inspection and Servicing - Safety Instructions".

 Bring hydraulic system to operating temperature.  Retract all hydraulic cylinders.  Drain off hydraulic oil (see operating instructions, section 3 "Inspection and Servicing").  Fill hydraulic oil tank with HLP SYNTH 68 up to halfway mark.

If hydraulic fluid seeps into the ground, the machine owner and the competent authorities must be informed. HLP SYNTH 68 is suitable only for hydraulic systems.

 Activate all hydraulic functions including travelling for about 30 minutes. The hydraulic system is being flushed during this time.

As HLP SYNTH 68 is not soluble in water This means that condensate may be deposited in the hydraulic oil tank.

It must therefore be drained off at regular intervals and after lengthy downtimes, then disposed of in the same way as used oil.

Then drain off the hydraulic fluid.

The fluid can be used repeatedly for flushing. Otherwise it must be properly disposed of. In this case, a disposal expert must be consulted as this is a mixture of synthetic hydraulic fluid and mineral hydraulic oil.

Use only HLP SYNTH 68 for changing or topping up the hydraulic fluid.

The hydraulic fluid must not be mixed with hydraulic oils or hydraulic fluids by other manufacturers, as this affects its biodegradability.

 Change all filters in the hydraulic system.

3-10

Fill the hydraulic oil tanks with new HLP SYNTH 68.

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Fix an instruction sticker (Fig. 3-1:):

in the cab,

on the hydraulic oil tank and

on hydraulically-operated attachment.

Environmentally compatible hydraulic fluid - Sampling Complete sets are compiled for hydraulic fluid analysis. They contain all necessary parts.

Sets are available from the Terex|O&K SpareParts Service: Part-No. 1 465 077.

Hydraulic fluid analyses are performed by: WEARCHECK GmbH Bahnhofstraße 75 D-83098 Brannenburg

 After 30 - 50 operating hours with environmentally compatible hydraulic fluid, take a sample of the hydraulic fluid.

Fig. 3-1:

 Start up the machine. Check level in hydraulic tank according to servicing plan.

 Send this sample in to the above address for analysis.

The company will then notify you of the result of the analysis.

 The hydraulic fluid may dissolve deposits in the hydraulic system.

So change all filters 30 - 50 operating hours after making the change.

Make further filter changes according to servicing plan.

After this, Terex|O&K recommends sending in a sample for analysis every 1000 operating hours or once a year.

It is essential that the hydraulic fluid should be analysed not later than after 3000 operating hours.

 Sample the hydraulic fluid after 30 - 50 operating hours and send in for analysis. (See section: "Environmentally compatible hydraulic fluid, sampling").

The results of the analysis show whether the hydraulic fluid is still serviceable and the changing interval can be extended.

In case of questions contact the Terex|O&K Service.

BA RH70(3 720 820.01)-EN

3-11

OPERATING INSTRUCTIONS RH 70 Inspection and servicing ENVIRONMENT-FRIENDLY LUBRICANTS AND GEARBOX OILS Lubricants for bearings The machine can be lubricated with an environment-friendly grease.

Gearbox oils

Environment-friendly gearbox oils are not approved by O&K-Mining for use in the travelling, swing and pump transfers gearboxes.

Environment-friendly grease can be used in the central lubricating system, in all other bearings and in the roller-bearing swing ring.

BP Biogrease E2 is approved by Terex|O&K as an environmentfriendly grease.

3-12

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing INSPECTION AND SERVICING PLANS - INSTRUCTIONS

Air-intake system The air filter must be serviced only if the vacuummeter so indicates. Replace the filter elements after one year at the latest.

Intervals The inspection and Servicing plan lists all jobs which have to be done on the machine at regular intervals.

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 sServicing plans.

Plan V

Do all jobs .... once prior to initial commissioning.

N

after initial commissioning and during the running-in period.

T

every 10 OH or every working shift

W

every 60 OH or weekly

A

after every 250 OH.

B

after every 500 OH.

C

after every 1000 OH.

D

after every 5000 OH.

E

after every 10000 OH.

Oils / Greases For the specification of oils and greases to be used refer to the "Lubricants" section.

The numerals mentioned in the "Oil / Grease" column in the inspection and sServicing plans have the following meaning: I

Oils for combustion engines and compressors

II

Oils for hydraulic systems

III

Oils for gearboxes

V

Greases for bearings and swing rings

2

2

OH = Bh = Operating hours

Change of engine oil l The intervals stated for changing the engine oil apply to fuels with a sulphur content of ≤ 0.5% and a permanent ambient temperature down to –10°C / 14°F.

Cleaning jobs Cleaning jobs, especially on cooling systems, must be done at shorter intervals if the machine is exposed to severe dust build-up..

Components The maintenance intervals for components, e.g. engine and gearbox, are listed in the following Terex|O&K maintenance schedules.

It is possible that the manufacturer's documentation for these components states intervals deviating from the above-mentioned intervals.

In such case, only the maintenance intervals specified by Terex|O&K shall apply.

In case of higher sulphur content and/or a permanent ambient temperature of below –10°C / 14°F, shorter intervals are required.

If the engine oil change intervals are not reached within 6 months, the oil must be changed at least after 6 months.

2

Whichever comes first.

BA RH70(3 720 820.01)-EN

3-13

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Plan V Plan V - Once prior to initial commissioning Page 1 von 2 Location

Servicing work

Quantity/ No.

Check oil level

1

Check

1

Battery

Check liquid level

2

Lighting

Check operation

Monitoring, warning and control elements

Check function of monitoring, warning and control elements Check function

1

- Earthing strap (equipotential bonding)

Check tightness

1

Hydraulic system

Check function of working and travelling movement

Engine Cooling system Cooling liquid Electrical system

Button EMERGENCY OFF Fuel system Refuelling station (option)

Check pressure (see: Technical handbook) Hydraulic oil reservoir

Check oil level

1

Hydraulic cylinders

Vent (see: chapter “venting hydraulic system“)

Pump tranfer gearbox

Check oil level

1

Check oil level

1

Swing gearbox

Check oil level

1

Travel gearbox

Check oil level

2

Check grease filling

1

- Pre-chamber - Expansion reservoir

Swing ring Internal gearing Undercarriage Track roller

Check for leaks and free movement

2x9

Support roller

Check for leaks and free movement

2x3

Track

Check pressure

2x1

Idler

Check for leaks and free movement

2x1

3-14

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Plan – V Once prior to initial commissioning Page 2 von 2 Location

Servicing work

Quantity/ No.

Central lubricating system Grease container

Check filling level

1

Compressor

Check oil level

1

All lines, fittings and connections

Inspect visually for leaks, wearing marks

All articutated joints and hinges

Grease

Air conditioner (optional)

BA RH70(3 720 820.01)-EN

3-15

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Plan N Plan N – After initial commissioning and during the running-in period Page 1 von 1 Location

Servicing work

Quantity/ No.

After 100 Bh Engine - Bearing - Fastening screws

Check for tightness

Cooling system Radiator - Bearing - Fastening screws

Check for tightness

Cooling liquid

Carry out analysis of cooling liquid after 500 OH (see: Operation and Maintenance Manual of the engine)

Hydraulic system Oil cooler - Bearing - Fastening screws

Check for tightness

Return-flow filter

Replace

4

Magnetic rod

Clean

3

Pressure accumulator – emergency lowering

Check function

1

Pump transfer gearbox

Change oil

1

3

- Pre-chamber

Change oil

3

3

Swing gearbox

Change oil

1

3

Fastening screws

Check for tightness

Travel gearbox

Change oil

2

3

Fastening screws

Check for tightness

Swing ring Fastening screws (swing ring, undercarriage and superstructure)

Check for tightness (see: Technical handbook)

Superstructure Fastening screws, especially at superstructure / pedestal / driver´s cab

Check for tightness

Undercarriage Fastening screws, track pads

Check for tightness (see: Technical handbook)

All lines, fittings and connections

Inspect visually for leaks, wearing marks

3

see: “Refilling quantities – Oil“ table

3-16

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Plan T and W Plan T - (Every 10 OH or every working shift (whichever comes first) Plan W - Every 60 OH or every working shift (whichever comes first) Page 1 von 2 Location

Quantity/

Plan

Plan

No.

T

W

Check oil level

1

z

z

Cooling fluid level

Check

1

z

z

Radiator

Check / clean

1

z

z

Fuel system Fuel filter

Drain off water

1

z

z

Water trap (optional)

Drain off water

1

z

z

Vacuum-meter

Check indication

2

z

z

Intake and clean-air lines

Check for tightness and leaks

Engine

Servicing work

Cooling system

Air-intake system z

Electrical system Lighting

z

Check operation

z

Switchgear cabinet - Breather filter - Dust trap

Check / clean

Monitoring, warning and control elements

Check function of monitoring, warning and control elements

Button EMERGENCY OFF

Check function

Hydraulic system

Check function of working and travelling movement

z

1 z

z z

2 z

z z

Inspect visually for leaks z

z

Hydraulic oil reservoir

Check oil level

1

Oil cooler

Check / clean

1

Fan wheel

Check condition

1

Pump transfer gearbox - Pre-chamber

Check oil level

1

- Expansion reservoir

Check oil level

1

z

z

Swing gearbox

Check oil level

1

z

z

Travel gearbox

Check for leaks

2

z

z

BA RH70(3 720 820.01)-EN

z z

z z

3-17

OPERATING INSTRUCTIONS RH 70 Inspection and servicing

Plan T - (Every 10 OH or every working shift (whichever comes first) Plan W - Every 60 OH or every working shift (whichever comes first) Page 2 von 2 Location

Servicing work

Quantity/

Plan

Plan

No.

T

W

z

z

Undercarriage Tracks

Inspect track tension visually

2x1

Track roller

Check for leaks and free movement

2x9

z

Support roller

Check for leaks and free movement

2x3

z

Idler

Check for leaks and free movement

2x1

z

Central lubricating system Grease container

Check grease level

Lubricating points

Check visually

Ladder (optional)

Grease hinges

4

z

Air conditioner

(see: “Air Conditioning manual“)

1

z

Fire extinguisher (optional)

Check condition

1

z

z

Automatic fire-extinguishing system (optional)

Check control module

1

z

z

All lines, fittings and connections

Inspect visually for leaks, wearing marks

z

z

Excavator

Overall cleaning

3-18

1

z

z

z

z

z

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Plan A – E Plan A - after every 250 OH (at 250, 750, 1250 ... OH)

Plan B - after every 500 OH (at 500, 1500, 2500 ... OH)

Plan C - after every 1000 OH (at 1000, 2000, 3000, 4000 ... OH)

Plan D - after every 5000 OH (at 5000, 15000, 25000 ... OH)

Plan E - after every 10000 OH (at 10000, 20000, 30000, ... OH)

Page 1 of 5 Location

Servicing work

Menge / No.

Servicing in acc. with W or T

Plan Plan Plan Plan Plan A

B

C

D

E

z

z

z

z

z

Monitoring, warning and control elements - Joystick oil lightly

2x4

4

z

z

z

- Control spool (machine with loading shovel)

oil lightly

3x2

4

z

z

z

- Control spool (machine with backhoe bucket)

oil lightly

2x2

4

z

z

z

- Control spool - Pedal

4

apply a thin layer of hydraulic oil

BA RH70(3 720 820.01)-EN

3-19

OPERATING INSTRUCTIONS RH 70 Inspection and servicing

Plan A - after every 250 OH (at 250, 750, 1250 ... OH)

Plan B - after every 500 OH (at 500, 1500, 2500 ... OH)

Plan C - after every 1000 OH (at 1000, 2000, 3000, 4000 ... OH)

Plan D - after every 5000 OH (at 5000, 15000, 25000 ... OH)

Plan E - after every 10000 OH (at 10000, 20000, 30000, ... OH)

Page 2 of 5 Location

Servicing work

Menge / No.

A

B

C

D

E

z

z

z

z

z

1 5 1

z z

z z

2

z z z

z z z

z z z z z z

z z z z z z

z z z z z z

z z

z z z z

z z z z

z z z z

z

z

z

z

z

z

z

z

Servicing acc. with W or T Engine Inspection and servicing

See: Operation and Maintenance Manual of the engine Carry out oil analysis Change oil Clean Replace Check tension Check condition

Oil filter V-belt V-belt - Bearing - Fastening screws - Rubber bearing Crank case breather Groundscrew engine electronics Starter Water pump Turbo charger

Check tightness Check condition Clean Check, clean, fasten

After 3000 OH:

See: Operation and Mainte-

Crankshaft Electronic Unit Injector Engine speed sensors Engine timing sensors Engine Valve Lash Engine Valve Rotators

nance Manual of the engine Inspect Vibration damper Inspect/Adjust Check/Clean/Adjust Check/Clean/Adjust Inspect/Adjust Inspect

5

Check Check Check

Plan Plan Plan Plan Plan

1 1

z z

see: “Refilling quantities – Oil“ table

3-20

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Plan A - after every 250 OH (at 250, 750, 1250 ... OH)

Plan B - after every 500 OH (at 500, 1500, 2500 ... OH)

Plan C - after every 1000 OH (at 1000, 2000, 3000, 4000 ... OH)

Plan D - after every 5000 OH (at 5000, 15000, 25000 ... OH)

Plan E - after every 10000 OH (at 10000, 20000, 30000, ... OH) Page 3 of 5 Location

Servicing work

Menge / No.

Cooling system Radiator - Check tightness - Fastening screws - Rubber bearing Cooling liquid

Anti-freeze Lines Hose clamps Fuel system Fuel filter Primary fuel filter Tank breather valve Water trap (optional) Air-intake system Main filter element

Inspect visually for leaks

Check tightness Check condition Check SCA-concentration (see: Operation and Maintenance Manual of the engine) Change Check Check for leaks Check tightness

1

Plan Plan Plan Plan Plan A

B

C

D

E

z

z

z

z

z

z

z z z

z z z

z z z

z z z

z z z z z z z z

6

z

z

z z z

z z

z z

z z

z

z

z

z z z z

Replace Replace Clean Clean

1 1 1 1

Check / replace

2

7

z

z

z

2

8

z

z

z

z

z

z

z

z

Safety filter element

Replace

Air-intake line and clean-air line Hoses

Check for tightness and leaks Replace

Electrical system Battery cable connections

Check for tightness

Battery

Check fluid level

z 2

z z

z z

z z

z z

Clean

1

z

z

z

z

Replace

1

z

z

z

Switchgear cabinet - Breather filter - Filter element

6

Cooling-liquid replacement after 6000 OH at the latest

7

Replacement of main filter element after one year resp. after 3 cleanings at the latest

8

Replacement of safety filter element after one year resp. after 3 cleaning cycles of the main filter element at the latest

BA RH70(3 720 820.01)-EN

3-21

OPERATING INSTRUCTIONS RH 70 Inspection and servicing

Plan A - after every 250 OH (at 250, 750, 1250 ... OH)

Plan B - after every 500 OH (at 500, 1500, 2500 ... OH)

Plan C - after every 1000 OH (at 1000, 2000, 3000, 4000 ... OH)

Plan D - after every 5000 OH (at 5000, 15000, 25000 ... OH)

Plan E - after every 10000 OH (at 10000, 20000, 30000, ... OH) Page 4 of 5 Location

Servicing work

Menge / No.

Plan Plan Plan Plan Plan C

D

E

Check pressure (see: Technical handbook)

z

z

z

- Fastening screw

Check for tightness

z

z

z

- Rubber bearing

Check condition

z

z

z

Return-flow filter

Replace

4

z

z

z

z

z

z

z

z

Hydraulic system

A

B

Oil cooler - Bearing

High-pressure filter

Check / clean

2

Replace

2

Check / clean

3

z

z

z

Bypass valve (working circuit) Clean valve

2

z

z

z

Bypass valve (cooling circuit)

1

z

z

z

z

z

z

z

z

z

z

z

z

z

z

z

z

z

z

z

z

Magnetic rod

Filter (pilot control circuit)

Filter (swing mechanism pump feeding-circuit)

Check / clean filter sieve Change valve

1

Check for contamination and damage

1

Replace

1

Check for contamination and damage

1

z

Replace

1

Breather filter

Replace

1

Hydraulic oil reservoir

Carry out oil analysis

1

Change oil

9 10

z

1

z

Pressure accumulator

Check pressure (see: Technical handbook)

Cylinder (seals and guide rings)

Replace

9

1

z

z

see: “Refilling quantities – Oil“ table

10

Unless it is regulary analyzed, the hydraulic oil must be changed every 5000 OH or after 3 years at the latest

3-22

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing

Plan A - after every 250 OH (at 250, 750, 1250 ... OH)

Plan B - after every 500 OH (at 500, 1500, 2500 ... OH)

Plan C - after every 1000 OH (at 1000, 2000, 3000, 4000 ... OH) Plan E - after every 10000 OH (at 10000, 20000, 30000, ... OH)

Plan D - after every 5000 OH (at 5000, 15000, 25000 ... OH) Page 5 of 5

Location

Servicing work

Menge /

Plan

Plan

Plan

Plan

Plan

No.

A

B

C

D

E

z

Carry out oil analysis

1

z

z

z

Change oil

11 12

z

z

z

Clean

1

z

z

z

- Pre-chamber

Change oil

3

11

z

z

z

- Breather filter

Clean

1

z

z

z

Swing gearbox

Carry out oil analysis

1

z

z

z

Change oil

11

z

z

z

Pump transfer gearbox Breather filter

1

1

z

Fastening screws

Check for tightness

z

z

z

Breather filter

Clean

1

z

z

z

z

Output-pinion bearing

Grease

1

z

z

z

Carry out oil analysis

2

z

z

z

z

Check oil level

2

z

z

z

z

Change oil

2

11

z

z

Breather filter

Replace

2

z

z

Swing ring

Check grease filling

1

Travel gearbox

Gearing / pinion

Check condition

Fastening screws (swing ring, undercarriage, superstructure)

Check for tightness (see: Technical Handbook)

Undercarriage

Check wear (see: Technical Handbook)

Diaphragm accumulator

Check pressure (see: Technical handbook) Check for tightness (see: Technical Handbook)

Track pad fastening bolts

z

z

z

z

z

z

z

z z

z

z

z z

2 z

z

z

z

z

z

z

z

z

z

z

z

Central lubricating system

Check function

Grease screen

Check / clean

1

Air conditioner resp. heating

(see. Air Conditioner Manual)

1

z

z

z

- Filter mat air suction (Backside driver`s seat)

Change

3

z

z

z

Steel components

Carry oput visual inspection

z

z

z

Check for tightness Grease

z

z

z

z

z

z

Modules - Fastening screws All articulated joints and hinges

11

see: “Refilling quantities – Oil“ table

12

In case of using TM Gear oil CLP 220 LT Terex|O&K P/N 6 002 885: Oil analysis after 1000 OH; oil change after 2000 OH

BA RH70(3 720 820.01)-EN

3-23

OPERATING INSTRUCTIONS RH 70 Inspection and servicing LUBRICATING CHART – GREASE (LOADING BUCKET)

Fig. 3-2:

3-24

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing

Lubricating chart – Grease / Loading bucket (legend) No. Greasing point 1

Central lubricating system – grease container

2

Monitoring-, warning- and control elements -

7

joystick pedal

Number

Lubricant properties

Grease every .... operating hours

1

V 13

10

14

2x4 3x2

1000

II 13

14

1000

Swing gearbox output pinion

1

V 13

1000

Ladder (optional)

4

V 13

60

All other greasing points are supplied with grease by the central lubricating system.

Filling quantities - Grease Greasing point Central lubricating system – grease container Internal gearing – Roller-bearing swing ring Idler (permanent grease filling)

Lubricant properties

V 13

Tribol

Filling quant. in kg

lb

8

17.6

20

44

2 x 1.1

2 x 2.4

3

1.7 oz

Terex|O&K P/No. 2764564 Swing gearbox output pinion

13

see: "LUBRICANTS" section

14

apply a thin layer of hydraulic oil

BA RH70(3 720 820.01)-EN

V 13

50 cm

3-25

OPERATING INSTRUCTIONS RH 70 Inspection and servicing LUBRICATING CHART – GREASE / BACKHOE BUCKET (LEGEND)

Fig. 3-3:

3-26

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Lubricating chart – Grease / Backhoe bucket (legend) No. Greasing point 1

Central lubricating system – grease container

2

Monitoring-, warning- and control elements

7

Number

Lubricant properties

Grease every .... operating hours

1

V 15

10

16

-

joystick

2x4

-

pedal

3x2

1000

II 15

16

Swing gearbox output pinion

1

V 15

Ladder (optional)

4

V 15

1000 1000

All other greasing points are supplied with grease by the central lubricating system.

Filling quantities - Grease Greasing point Central lubricating system – grease container Internal gearing – Roller-bearing swing ring Idler (permanent grease filling)

Lubricant properties

V 15

Tribol

Filling quant. in kg

lb

8

17.6

20

44

2 x 1.1

2 x 2.4

3

1.7 oz

Terex|O&K P/No. 2764564 Swing gearbox output pinion

15

see: "LUBRICANTS" section

16

apply a thin layer of hydraulic oil

BA RH70(3 720 820.01)-EN

V 15

50 cm

3-27

OPERATING INSTRUCTIONS RH 70 Inspection and servicing INSPECTION PLAN - OIL

Fig. 3-4:

3-28

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Inspection plan – Oil (legend) )

No. Location

17

Number

Lubricant 17 properties

Check oil level

Change oil

every ... OH

every ... OH

1

Engine

1

I

10

250

2

Hydraulic system

1

10

10000

3

Pump transfer gearbox

1

60

1000

3

- pre-chamber

3

II III.a III.a

10

1000

4

Swing gearbox

1

III.b

10

1000

5

Travel gearbox

2

III.c

500

5000

18

see: "LUBRICANTS" section

18

Change hydraulic oil every 5000 OH unless the oil is analyzed at regular intervals, but not later than every 3 years.

BA RH70(3 720 820.01)-EN

3-29

OPERATING INSTRUCTIONS RH 70 Inspection and servicing

Filling quantities - oil Location

Filling quantity in litres

Oil

gal

Drive engine

I I I

- without filter change

60

15.85

- with filter change

66

17.45

Hydraulic oil system at oil change

Approx. 1900

Approx. 502

- oil reservoir

Approx. 1500

Approx. 396.3

Pump transfer gearbox

Approx. 16

Approx. 4.2

pre-chamber (working pumps)

2 x Approx. 1.4

2 x approx.

0.37

pre-chamber (hydraulic pumps)

1 x Approx. 0.2

1 x approx.

0.05

Swing gearbox

Approx. 14

Approx. 3.7

III.b

Travel gearbox

2 x Approx.

22,5

2 x Approx. 5.9

III.c

Track rollers (permanent oil filling)

18 x 1.5

18 x 0.4

Support rollers (permanent oil filling)

6 x 1.5

6 x 0.4

III.c III.c

II II

III.a

Filling quantities - other Location

Filling quantity in litres

gal

Cooling system - engine

115

30.9

Fuel tank

1650

435.9

Screen washer

13

3.4

3-30

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing LUBRICANTS I.

Oils for combustion engine

Fig. 3-5:

BA RH70(3 720 820.01)-EN

3-31

OPERATING INSTRUCTIONS RH 70 Inspection and servicing

II.

Oils for hydraulic system (selection)

Fig. 3-6:

3-32

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing III.a Oils for pump gearbox

Fig. 3-7:

BA RH70(3 720 820.01)-EN

3-33

OPERATING INSTRUCTIONS RH 70 Inspection and servicing III.b Oils for swing gearbox

Fig. 3-8:

3-34

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing III.c Oils for travel gearbox

Fig. 3-9:

BA RH70(3 720 820.01)-EN

3-35

OPERATING INSTRUCTIONS RH 70 Inspection and servicing V.

Greases for bearings and swing rings

Fig. 3-10:

3-36

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing SERVICING WORK Hose line for oil and cooling liquid changes

Collect escaping oil and cooling liquid and discard without polluting the environment.

Carry out oil changes when the machine is at operating temperature; warm oil drains away more easily.

Change oil or cooling liquid as follows: Â Place a collecting recipient for used oil or cooling liquid under the corresponding automatic drain valve. For the recipient capacity refer to the "Filling quantities - Oil" table or to the "Filling quantities - Other" table. Â Unscrew protective cap from automatic drain valve. Â Screw on hose line (2) to open the valve, so that the oil or the cooling liquid can flow out. Â When the oil or the cooling liquid has drained away, unscrew hose line to allow the valve to close automatically. Â Screw protective cap back in place.

The engine, the hydraulic oil reservoir, the pump transfer gearbox, the swing gearbox and the radiator (engine cooling liquid) are moreover equipped with automatic drain valves (1, Fig. 3-11:).

These automatic drain valves permit oil- and cooling-liquid changes without polluting the environment.

Fig. 3-11:

BA RH70(3 720 820.01)-EN

3-37

OPERATING INSTRUCTIONS RH 70 Inspection and servicing ENGINE

Checking the engine oil level / Topping up

Engine - Safety instructions

Start and operate combustion engines only on well-ventilated premises.

In closed rooms, exhaust gases must be evacuated to the outside; Do not work on the exhaust system an do not make any modifications to it.

Exhaust gases from diesel engines and some of their constituents may cause cancer, birth defects and other reproductive harm.

Read and observe: "Inspection and Servicing – Safety Instructions" and the engine operating instructions.

Risk of injury from hot or rotating parts of the engine.

Shut off engines and allow to cool down.

Secure the machine as described in the "Securing the machine" section.

Protect the skin from potentially harmful contact with engine oil.

Wear protective gloves and firm working clothing.

Fig. 3-12:

 Park the machine on a horizontal surface and protect it against rolling away.  Shut off the engine.  Withdraw dipstick (arrow, Fig. 3-12:).  Wipe dipstick clean with a clean and lintfree cloth and re-insert.  Withdraw oil dipstick once again. The oil level should now lie between the marks (arrows, Fig. 3-13:). If the oil level is at the "min" mark or below, top up with engine oil through the fillertube (arrow, Fig. 3-14:).

Checking the V-belt tension These and other servicing works are described in the engine manufacturer's operating instructions.

Fig. 3-13:

3-38

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Changing the engine oil

After draining of the oil: Â Replace the engine oil filter.

Read and observe: "Inspection and servicing – Safety instructions".

 Remove the hose line.

The automatic drain coupling closes automatically. Â Screw on protective cap.

Risk of scalding from hot engine oil.

The engine may also be hot.

Wear protective gloves and firm working clothing.

Protect the skin from contact with engine oil.

Skin contact with engine oil is a potential health hazard.

 Fill in engine oil through the filler tube (arrow, Fig. 3-15:) until the oil level reaches the "max" mark (Fig. 3-16:).  Start the engine and allow to run for abt. 2 minutes at idling.  Check oil level and top up with oil up to the "max" mark, if required.

Collect escaping oil and discard without polluting the environment.

Draining engine oil  Bring engine oil to operating temperature.  Park the machine on a horizontal surface and secure.  Shut off the engine.

Fig. 3-15:

Fig. 3-14: Fig. 3-16:

 Drain off engine oil using the oil draining coupling (Fig. 3-14:) and the oil draining hose.

The use of the oil draining hose is described in the " Hose line for oil and cooling liquid changes " chapter.

BA RH70(3 720 820.01)-EN

3-39

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Replacing the engine oil filter Read and observe: "Inspection and servicing – Safety instructions".

Risk of scalding from hot engine oil.

The filter housing may also be hot.

Wear protective gloves and firm working clothing.

Protect the skin from contact with engine oil.

Skin contact with engine oil is a potential health hazard.

Collect escaping oil and discard with-out polluting the environment.

Change engine oil filter

Fig. 3-18:

 Unscrew filters.  Install new filters with slightly oiled sealing ring and tighten by hand.

After replacing the oil filters, the oil of the engine must be changed in accordance with the engine operating instructions (when not done).

 Allow engine to run at idling for a short time and check filters for leaks, shut off engine;  Check oil level after abt. 10 minutes and top up with oil, if required.

Fig. 3-17:

 Shut down engine. Wait until engine is cooled down.

Risk of injury when falling down Put on your fall protection equipment before entering the catwalk at the right side of the superstructure (1, Fig. 3-17:). Fix the safety rope at the handles (3).

 Open door of engine compartment at the right side of the superstructure (2, Fig. 3-17:).

The oil filters (1, Fig. 3-18:) are now accessible.

3-40

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing COOLING SYSTEM

Radiators and cooling liquid Risk of injury when falling down

Read and observe: "Inspection and servicing - Safety instructions".

Put on your fall protection equipment before entering the superstructure. Fix the safety rope at the eyelets or handrails (arrows, ).

Secure the machine as described in the "Securing the machine" section.

Shut off the engine and allow to cool down.

Risk of scalding from hot cooling liquid.

Collect escaping cooling liquid and discard without polluting the environment.

Protect the skin from contact with cooling liquid.

Skin contact with cooling liquid is a potential health hazard.

Wear protective gloves and firm working clothing.

The radiator (1, Fig. 3-19:) is located on the superstructure. Â After each working shift: examine radiator fins for dirt and clean, if required. Â Check cooling-liquid level at the monitoring device (3, ). The cooling liquig level must reach the markings at the monitoring device. If the cooling-liquid level is too low, a warning lamp on a satellite in the control column lights up too. Â If required top up cooling liquid.

Temperature The cooling-liquid circuit is controlled by a thermostat. The maximum admissible temperature is ca.

100° C / 212° F. In case of higher temperatures warning lamp on satellite illuminated - locate cause and rectify.

Fig. 3-19:

Fig. 3-20:

BA RH70(3 720 820.01)-EN

3-41

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Topping up cooling liquid

Change cooling liquid Read and observe: Inspection and servicing – Safety instructions.

Risk of scalding from hot cooling liquid.The radiators may also be hot.

Wear protective gloves and firm working clothing.

Collect escaping cooling liquid and discard without polluting the environment.

The cooling liquid must be changed regularly and after 6000 OH at the latest.

Fig. 3-21:

Risk of scalding from hot cooling liquid under pressure. Open radiator cap cautiously. Â Turn radiator cap (2, Fig. 3-21:) back to the first notch, the pressure releases. Â When the pressure has been released turn cap into the "open" position and remove. Â Fill cooling liquid into the cooling system through the filler tube (2).

Do not fill in cold cooling liquid when the engine is at operating temperature.

Fig. 3-22:

Before topping up, allow engine to cool down to below 50° C / 122° F

 Prepare a collecting recipient for used cooling liquid. Choose the required recipient capacity in accordance with the "Refilling quantities Other" table.

 Screw on protective cap.

For topping up of the cooling system use specially prepared cooling liquid CAT ELC, Terex|O&K Part No. 2482777 only. This gives an anti-freeze protection down to -37 °C / -34.6°F. After filling in cooling liquid allow the engines to run for short period to eliminate air voids before topping up with cooling liquid to markings at the monitoring device (3).

In case of significant cooling-liquid losses, the whole cooling system must be checked for leaks.

To do so:

 Shut off the engine, allow to cool down.

Risk of scalding from hot cooling liquid under pressure. Open radiator cap cautiously. Â Turn radiator cap (2, Fig. 3-21:) back to the first notch, the pressure releases. Â When the pressure has been released turn cap into the "open" position and remove.

Check regularlyall lines for leaks and all hose clamps for tightness.

3-42

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing

The drain plug for cooling liquid is assessibleunder the engine compartment (Fig. 3-23:). Â Drain cooling liquid using the draining coupling (Fig. 3-23:) and the cooling liquid draining hose.

The use of the cooling liquid draining hose is described in the " Hose line for oil and cooling liquid changes " chapter.

Testing the cooling liquid composition The „Engine operating instructions“ contain a detailed description of how to prepare and test the cooling liquid composition. In case of imminent frost check that the factory-adjusted anti-freeze concentration is sufficient for the expected temperatures.

 After cooling liquid has drained off completely, remove the hose line. The automatic drain coupling closes automatically.

Check the cooling liquid in the cooling system regularly to ensure that the SCA mixture is sufficiently concentrated to prevent corrosion under the corresponding operating conditions.

 Fill in special prepared cooling liquid CAT ELC, Terex|O&K Part No. 2482777 (see: "Refilling quantities - Other" table.).

Checking the SCA concentration

 Check cooling liquid level at the monitoring device (3).  After filling in cooling liquid allow the engine to run for short period to eliminate air voids before topping up with cooling liquid to markings at the monitoring device (3).

Observe the instructions of the engine manufacturer with regard to the SCA concentration (see engine manufacturer's operating instructions).

For more information see "Engine, Operation and Maintenance Manual".

Fig. 3-23:

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3-43

OPERATING INSTRUCTIONS RH 70 Inspection and servicing AIR-INTAKE SYSTEM Main filter elements Read and observe the „Inspection and maintenance, Safety instructions“ and

An insufficient air-intake performance, caused by a contaminated main filter element, is indicated by the vacuum-meters (8, Fig. 3-24:).

"Engine - Safety instructions" chapters.

Clean or renew main filter element only if the vacuum-meter nindication changes to "RED" with the engine running at high speed.

Wear a fall arresters Risk of injury caused by rotating or hot parts of the engine.

Removal and installation

Shut off the engine before working on the airintake system.

 Unscrew nut (1, Fig. 3-24:) and remove cover (2).

Secure the machine as described in the "Securing the machine" section.

 Unscrew nut (3, Fig. 3-25:) and withdraw main filter element (4). Do not loose the washer under nut (3).

Do not start the engine when parts of the air-intake system have been detached.

Engine damage may occur if the engine is allowed to draw in unfiltered air.

The air-intake system is equipped with two dry-air filter (Fig. 3-24:) consisting of main and safety filter element.

 Clean or renew main filter element only if the vacuummeter (8, Fig. 3-24:) indication changes to "RED" with the engine running at high speed.

New or cleaned main filter elements should always be at hand to shorten excavator downtimes.

Fig. 3-25:

Fig. 3-24:

3-44

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing  Before installing the filter element, clean contact faces at cover (2, Fig. 3-26:) and at filter housing.  Put on cover (2) and tighten nut (1).

Check element seal. When the seal is damaged, the filter element must be replaced, too.

Cleaning with compressed air is suitable if the filter element is to be re-used immediately.

During the removal of the main filter element, the safety element (5, Fig. 3-27:) must remain in the filter housing.

Fig. 3-28:

Fig. 3-26:

Blow filter element (Fig. 3-29:) clean with dry compressed air from the inside by moving the compressed-air gun up and down.

Checking and cleaning the main filter element

The pressure at the nozzle must not exceed 6 bars / 87psi.

Examine the filter paper of the element with a lamp which is introduced into the element (Fig. 3-28:). Any damage is then clearly visible.

Cleaning is terminated when all visible dust has been blown out of the filter element.

Fig. 3-29: Fig. 3-27:

Replace damaged or deformed elements immediately.

Never clean filter element by beating against hard objects.

Replace the main filter element after 1000 operating hours or 3 cleaning cycles; and, after one year of operation at the latest.

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3-45

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Safety filter element Replacement

 Remove main filter element (4, Fig. 3-31:) as described above.

Replace the safety filter elements (5, Fig. 3-30:) after 1000 operating hours or 3 cleaning cycles; after one year of operation at the latest.

 Unscrew nut (6, Fig. 3-30:) and withdraw safety filter element (5).

Never clean the safety filter element, but always renew.

 Install the new safety filter element and a cleaned or a new main filter element.

Air-intake lines At regular intervals: Â check intake lines for leaks and hose clamps for tightness; Â replace hoses between filter housing and engine.

During all works on the air-intake system ensure proper sealing to prevent unfiltered air from reaching the engines.

Dust collection Fig. 3-30:

Dust accumulating on the filter-housing bottom is constantly sucked away by the exhaust system during operation.

The non-return valves (7, Fig. 3-32:) in the suction lines prevent engine exhaust gases from being sucked in.

At regular intervals: Â check suction lines for leaks and hose clamps for tightness.

Fig. 3-31:

Fig. 3-32:

3-46

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OPERATING INSTRUCTIONS RH 70 Inspection and servicing FUEL SYSTEM

Primary fuel filter, drain off water Read and observe the "Inspection and servicing – Safety instructions" chapter.

Fuel system - Safety instructions

Read and observe the "Fuel system – Safety instructions" chapter.

Read and observe the "Inspection and servicing – Safety instructions" chapter.

Secure the machine as described in the "Securing the machine" section.

Before working on the fuel system, shut off the engine, keep away naked flames, do not smoke.

Collect escaping fuel and discard without polluting the environment.

Discard used fuel filters without polluting the environment.

Fig. 3-33:

Avoid skin contact with diesel fuel.

Diesel fuel may cause skin injury.

Wear firm working clothing.

Wear protective gloves or use a barrier cream.

Do not allow dirt to enter the fuel system. Thoroughly clean the area around a fuel component before disconnect it.

It may be necessary to relieve residual fuel pressure from the fuel system before the fuel filter is removed. Wait for one to five minutes until the fuel pressure has lowered.

Fig. 3-34:

 Open hatch (1, Fig. 3-33:) to gain access to the fuel filters.

The primary fuel filter (1, Fig. 3-34:) serve at the same time as a water separator: Â Open valve (2) and drain off water until fuel emerges. Â Close valve (2).

For more information see "Engine, Operation and Maintenance Manual".

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3-47

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Primary fuel filter, replace Read and observe the "Inspection and servicing – Safety instructions" chapter.

Read and observe the "Fuel system – Safety instructions" chapter.

 Unscrew primary fuel filter (1, Fig. 3-35:) completely.  Pour out fuel and dispose.  Unsrew collecting bowl (2) from filterelement and clean.  Clean sealing surface at the filter mounting base.

Fig. 3-35:

 Clean and check O-Ring of the bowl. Replace if damaged. Apply clean diesel fuel.  Screw bowl together with the O-ring to the new primary fuel filter (1) , tighten by hand.

Tightening the bowl with a tool may damage or deform the bowl.

 The new primary filter may be prefilled with clean fuel to avoid rough running/stalling of the engine due to air. Do not fill the secondary filter with fuel before installation. The fuel would not be filtered and could be contaminated. Contaminated fuel will cause accelerated wear to fuel system parts.  Lubricate the sealing of the primary fuel filter lightly with clean fuel and screw it onto the filter base by hand. Continue to tighten filter by a further 1/2 to 3/4 turn.

Tightening the filter element with a tool may damage or deform the filter head. Â Start engine and allow to run for about one minute. Check for leaks.

For more information see "Engine, Operation and Maintenance Manual".

3-48

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OPERATING INSTRUCTIONS RH 70 Inspection and servicing Secondary fuel filter, replace Read and observe the "Inspection and servicing – Safety instructions" chapter.

Read and observe the "Fuel system – Safety instructions" chapter.

 Open hatch (1, Fig. 3-36:) to gain access to the fuel filters.  Unsrew fuel filter (3, Fig. 3-37:).  Clean sealing surface at the filter mounting base.

Fig. 3-36:

 Do not fill the new secondary fuel filter with fuel The fuel would not be filtered and could be contaminated. Contaminated fuel will cause accelerated wear to fuel system parts.  Lubricate the sealing of the fuel filter lightly with clean fuel.  Screw the fuel filter onto the filter base by hand. Use the rotation index marks on the filter as a guide for proper tightening. Tighten the filter according to the instructions that are on the filter.

Tightening the filter element with a tool may damage or deform the filter head.

Fig. 3-37:

 Vent the fuel system, see "Engine, Operation and Maintenance Manual".

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3-49

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Venting the fuel tank

Cleaning the fuel tanks

The fuel tanks are vented with breather valves (4, Fig. 3-38:).

Clean breather valves regularly. Â Remove breather valve, flush with paraffin oil and blow clean with compressed air.

Explosion hazard.

Read and observe the "Inspection and servicing.

Safety instructions" chapter.

Do not use white spirit, paraffin oil or other solvents.

For flushing and cleaning use diesel fuel.

Avoid skin contact.

Skin contact with diesel fuel may cause skin injury.

Wear firm working clothing.

Wear protective gloves or use a barrier ccream.

Fig. 3-38:

3-50

Fuel must be prevented from penetrating into the soil. Keep fuel for re-use or discard without polluting the environment.

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing

 Use up as much fuel as possible.

Refuelling station (optional)

 Check how much fuel remains in the tank and place a collecting recipient of sufficient size under the drain plugs of the tanks.  Loosen drain plug (5, Fig. 3-39:) at fuel the tank and drain off fuel.  Flush tank with diesel fuel.  Screw drain plug (5) back in place.  Fill in fuel through the filter sieve in the filler tube (2).

Sparking caused by static or electric charges may set fuel on fire.

Check earthing strap (equipotential bonding) (4, Fig. 3-40:) regularly for tightness.

Only a perfectly connected earthing strap can remove static or electric charges and thus avoid the risk of fire during refuelling.

Fig. 3-40:

Fig. 3-39:

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3-51

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Water trap (option)

Servicing

Water contained in the fuel is removed by the water trap (Fig. 3-41:).

Draining off water Carry out the following works in accordance with the servicing schedule and at regular intervals: Â Loosen venting plug (9, Fig. 3-42:) and leave drain valve (3) open until there is no more water in the diesel fuel flowing out of the valve.

Fig. 3-41:

Fig. 3-42:

Collect escaping liquid in a recipient suitable for diesel fuel and discard without polluting the environment.

The liquid flowing out of the valve flushes and cleans the filter element(6) von from top to bottom. Â Close drain valve (3) and tighten venting plug (9).

3-52

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OPERATING INSTRUCTIONS RH 70 Inspection and servicing Checking / cleaning the filter element

 Clean recipient (1) and filter housing (4).  Loosen flange (2).

Replace filter element (6, Fig. 3-43:) only when the suction resistance is too high.

 Take off recipient (1) and clean with diesel fuel  Check cover sealing and replace, if necessary.  Attach recipient (1) with flange (2) at filter housing (4).

Check for proper sealing.

Fig. 3-43:

 Loosen venting plug (9) and leave drain valve (3) open until the reservoir is completely empty.

Collect escaping liquid in a recipient suitable for diesel fuel and discard without polluting the environment. Â Â Remove cover (5). Â Remove spring holder (7) and filter element (6) from filter housing (4). Â Check / replace filter element (6) Â Clean filter housing (4) using diesel fuel. Â Check cover sealing and replace,if necessary. Â Insert filter element (6) and spring housing (7) into filter housing (4). Â Fasten cover (5) on filter housing (4).

Check for proper sealing.

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3-53

OPERATING INSTRUCTIONS RH 70 Inspection and servicing ELECTRICAL SYSTEM Electrical system - Safety instructions

Read and observe the "Inspection and servicing – Safety instructions" chapter.

Risk of injury caused by battery acid and gases.

Wear goggles, working gloves and firm working clothing.

The electrical circuit diagrams are annexed to thespare-parts list. Further information can be found in the Terex|O&K booklet "Working with circuit diagrams".

The electrical system switch-cabinet is located behind the hydraulic reservoir. The cabinet is described in the spare-parts list together with the designation of the electrical components.

Cables and cable lugs must not get in contact with other metal parts. Replace broken or damaged cables and the respective cable lugs.

If a bulb does not work after replacement, the pertaining fuses, connection cables and contacts must be checked.

Gas-discharge lamps (optional) are operated with high voltage.

Carry out voltage and continuity checks only by means of a test lamp or a measuring instrument.

Do not check by "touching ground" with a bare wire. The short-circuit thus produced damages the alternator and the electronic modules of the PMS.

Alternator - Instructions Never disconnect cables from the alternator, regulator and the battery when the engine is running to avoid damage to the alternator and regulator.

Do not interchange the cables when connecting the battery (observe polarity).

Carry out voltage and continuity checks only by means of a test lamp or a measuring instrument.

Do not check by "touching ground" with a bare wire. The short-circuit thus produced damages the alternator and the regulator.

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OPERATING INSTRUCTIONS RH 70 Inspection and servicing Battery

Removing and installing the battery The acid temperature must be 20 ° C / 68° F.

Warning! Battery Posts, terminals and related accessories contain lead and lead compounds, chemicals known to cause cancer and reproductive harm. Wash hands after handling

 Unscrew caps of the battery  Measure the acid density of the battery using a commercial acid tester The acid density measured is in direct correlation with the battery charge.

Acid density

Checking the battery fluid level

kg / dm3

Charge

Normal condition

Tropical conditions

 Unscrew caps (Fig. 3-44:).

1,28

1,23

fully charged

 If checking inserts are provided, the battery acid must reach up to their bottom.

1,20

1,12

half charged, recharge

1,12

1,08

discharged, recharge immediately

(Not applicable in case of maintenance-free batteries)

 If no checking inserts are provided, insert a clean wooden rod into the battery until it contacts the upper edge of the cell plates. The rod must be moistened over at least 10 mm / 0.4 in.  If the fluid level is too low, top up with distilled water only

Fig. 3-44:

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3-55

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Removing and installing the battery

 Open hatch (8)  Unscrew battery holder (3, Fig. 3-46:).

Read and observe the "Inspection and servicing – Safety instructions" chapter.

 Disconnect the cable lug from the negative terminal of the battery.  Disconnect the cable lug from the positive terminal of the battery.

Wear protective gloves and firm working clothing.

 Insulate the cable lugs.

Shut off the engines before removing the batteries to avoid damaging the alternator and the regulator.

Take out the batteries

Turn key in key-switch to position "0" and withdraw.

Before installing the new battery, the contact faces of the battery terminal posts and the cable lugs must be cleaned down to the bright metal.

Disconnect and reconnect the terminal clamping lugs in the prescribed order.

Install the new batteries.

Disconnecting and connecting in the wrong order may cause short-circuits.

 Connect the cable lug to the positive terminal of the battery.

The batteries (1, Fig. 3-45:) are located under the hatch.

 Tighten the clamping screw of the cable lug.

Do not use too much force to avoid deformations.

The 12-volt batteries are connected in series and in parallel, so that the system voltage is 24 volts.

 Connect the cable lug to the negative terminal of the battery.  Apply special terminal grease or acid-free vaseline on the battery terminal posts and clamping lugs.

Loose or corroded clamping lugs will lead to alternator or regulator overloading. Â Fix battery holder (3).

Fig. 3-45:

Fig. 3-46:

3-56

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OPERATING INSTRUCTIONS RH 70 Inspection and servicing Switchgear cabinet

Breather filter

In the switchgear cabinet is located under the driver´s cab behind the hatch 2 (Fig. 3-47:).

In the switchgear cabinet, the air is drawn in by a ventilator via the filter (Fig. 3-48:).

Fig. 3-47:

Fig. 3-48:

Emptying dust trap  Press dust trap (14, Fig. 3-48:) and hold until the dust trap is empty.

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3-57

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Empty dust collector  Loosen clips (11, Fig. 3-48:).  Remove dust collector (12) and empty.

Fig. 3-50:

Check element seal. If damaged, replace filter element too.

Cleaning with compressed air allows the filter element to be re-used immediately.

Fig. 3-49:

Filter element  Remove dust collector (12, Fig. 3-48:).  Withdraw filter element (13, Fig. 3-49:).  Replace or clean filter element (13).  Refit dust collector (12, Fig. 3-48:). Â

Checking and cleaning the filter element Check the filter paper of the element by inserting a lamp into the element (Fig. 3-50:). Any damage can then be seen.

Replace damaged or distorted element immediately.

Fig. 3-51:

Blow filter element (Fig. 3-51:) dry with compressed air by moving the compressed-air piston up and down inside it.

The pressure at the nozzle must not exceed 6 bars / 87 psi.

Cleaning is completed when no more dust is seen to leave the filter element.

Never clean filter element by beating it against hard objects.

Replace main filter element after 1000 operating hours or 3 cleaning cycles, but not later than after one year of operation.

3-58

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OPERATING INSTRUCTIONS RH 70 Inspection and servicing HYDRAULIC SYSTEM Hydraulic system - Safety instructions

Residual pressures disappear only gradually. If work is to be carried out on the hydraulic system immediately after the immobilization, the system must be freed from pressure, i.e. depressurized:

Read and observe the "Inspection and servicing – Safety instructions" chapter.

Before working on the hydraulic system, make sure that the system is without pressure and that the residual pressures have also been eliminated.

Shut off the engine.

Fig. 3-52:

Risk of burning caused by hot hydraulic components (e.g. hydraulic oil reservoir, cylinder, valves).

Secure the machine as described in the "Securing the mmachine section.

Avoid skin contact with hydraulic oil.

Contact with hydraulic oil can cause skin injury.

Wear protective gloves and firm working clothing.

Depressurizing the hydraulic system Hydraulic systems may only be opened if they are completely depressurized. Even when an excavator is parked on a horizontal surface with the working equipment resting on the ground (Fig. 3-52:and Fig. 3-53:) and with its drive engines stationary, there may still be a considerable amount of residual pressure in parts of the hydraulic system, as e.g. the primary pressure resulting from the last hydraulic movements before the immobilization.

BA RH70(3 720 820.01)-EN

Fig. 3-53:

 Locate the system section to be opened.  Depressurize the section to be opened. If required, the necessary measures described must be combined  Open the depressurized system section with caution.

Examples of system sections: 1) working hydraulics 2) servo control circuit 3) precharged return-flow line

3-59

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Depressurizing  Park the excavator on a horizontal surface.  Set the working equipment on the ground.  Shut off the drive engine.

Sections 1 and 2: servo control and working hydraulics - Shift both control levers repeatedly into all dIrections (Fig. 3-54:).

Fig. 3-55:

Topping up with hydraulic oil  Remove cover (20, Fig. 3-56:) and retaining disk (23).  One of the return-flow filters is now visible in the filter chamber.  Fill in hydraulic oil through this return-flow filter until the oil level lies between the ½ and ¾ marks of the inspection glass (oil grade see: "Refilling quantities - Oil").

Fig. 3-54:

Section 3: return-flow line After shutting down the engine, the precharging pressure decreases rapidly through the precharging valve. No measures are required before opening the return-flow line.

 Before fitting retaining disk (23) and cover (20), check sealing ring (26) and replace if damaged.  Fit cover together with sealing ring.

Checking the hydraulic oil level  Bring hydraulic oil to operating temperature (abt. 50 °C / 122° F).  Park the machine on a horizontal surface.  Move all hydraulic cylinders to their central positions.

The oil level must lie between the ½ and ¾ marks of the inspection glass (1, Fig. 3-55:).

Two sensors are monitoring the hydraulic oil level in the hydraulic oil reservoir. If the warning lamp comes on, shut off the engine. Trace out the fault and eliminate.

Fig. 3-56:

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BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing

when the "Hydraulic oil filter" warning lamp lights up when the hydraulic oil is at operating temperature. The filter elements (25, Fig. 3-57:) are then heavily contaminated.

(The warning can be disregarded if the lamp lights up only shortly during starting of the engine);

after repairs on the hydraulic system;

Shut off the engine.

in case of damage.

Risk of scalding caused by hot hydraulic oil.

 Remove cover (20) and retaining disk (23) as described under "Topping up with hydraulic oil".

Changing the hydraulic oil return-flow (hydraulic oil reservoir)

Read and observe the "Inspection and servicing – Safety instructions" chapter.

The hydraulic oil reservoir itself may also be hot.

Avoid skin contact.

Skin contact with hydraulic oil may cause skin injury.

Wear protective gloves and firm working clothing.

Wear fall arresters before working on the hydraulic tank.

Collect escaping hydraulic oil and discard without polluting the environment.

The return-flow filters must be replaced:

when servicing works in accordance with the servicing plan are carried out;

 Clean the magnetic rod (24).

If abraded metal and metal filings adhere to the magnetic rod, locate the cause or contact the O&KMining Service.

 Withdraw filter element (25) together with sealing ring (22).

If the filter elements are damaged, remove basket (28) and clean down with spirits or petroleum. Â Lower basket (28) into tank. Â Insert new filter element (25) together with sealing ring (22). Â Fit retaining disk (23) with sealing ring (27). Â Refit cover (20) with sealing ring (26).

Proceed in the same way to replace the other filter elements (25).

Fig. 3-57:

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3-61

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Bypass valves (working circuit)

Read and observe the "Inspection and servicing – Safety instructions" chapter.

Cleaning the filter screens  Remove cover (10, Fig. 3-58:). Remove screws (12) and take out the bypass valve.

Withdraw sieve (13) and clean in white spirit or paraffin oil. Replace, if required. Â Check sealing ring (16) for damage and replace, if required.

Shut off the engine.

 Re-assemble the bypass valve.

Risk of scalding caused by hot hydraulic oil.

 Check sealing rings (14 and 15) for damage and replace, if required.

The hydraulic oil reservoir itself may also be hot.

Avoid skin contact.

 Insert the bypass valve. Make sure the valve fits properly.

Skin contact with hydraulic oil may cause skin injury.

 Refit cover (10) with sealing ring (15).

Wear protective gloves and firm working clothing.

Wear fall arresters before working on the hydraulic tank.

Collect escaping hydraulic oil and discard without polluting the environment.

Fig. 3-58:

Replacing the bypass valves and the sealing rings  Remove the bypass valve as described under "Cleaning the sieve".  Re-assemble new bypass valve with sieve (13) and new sealing ring (16).  Insert bypass valve with new sealing ring (14).  Refit cover (10) with new sealing ring (15).

3-62

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OPERATING INSTRUCTIONS RH 70 Inspection and servicing Bypass valves (cooling circuit)

Cleaning the valve  Remove cover (7, Fig. 3-59:).

Read and observe the "Inspection and servicing – Safety instructions" chapter.

 Unscrew screws (33, Fig. 3-60:) and withdraw valve carrier (31) together with valve (32).  Clean valve (32) in white spirit or paraffin oil and replace, if required.

Shut off the engine.

 Insert valve (32) into valve carrier (31).

Risk of scalding caused by hot hydraulic oil.

 Fasten valve carrier (31) with screws (33) in the hydraulic oil reservoir. Refit cover (7, Fig. 8) with a new sealing ring.

The hydraulic oil reservoir itself may also be hot.

Avoid skin contact.

Skin contact with hydraulic oil may cause skin injury.

Wear protective gloves and firm working clothing.

Wear fall arresters before working on the hydraulic tank.

Collect escaping hydraulic oil and discard without polluting the environment.

Fig. 3-60:

Changing the valve Fig. 3-59:

 Remove bypass valve as described under "Cleaning the valve".  Remove valve (32, Fig. 3-60:) and replace by a new one.  Fasten bypass valve (31) on the hydraulic oil reservoir.  Refit cover (7, Fig. 3-59:).

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3-63

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Breather filter

Read and observe the "Inspection and servicing - Safety instructions" chapter.

Replacing the filter elements The breather filters (20, Fig. 3-61:) ensure venting of the hydraulic oil reservoir at varying hydraulic oil levels.

Shut off the engine.

Risk of scalding caused by hot hydraulic oil.

The hydraulic oil reservoir itself may also be hot.

Avoid skin contact.

Skin contact with hydraulic oil may cause skin injury.

Wear protective gloves and firm working clothing.

Wear fall arresters before working on the hydraulic tank.

Fig. 3-61:

 Unscrew butterfly nut (50, Fig. 3-62:). Withdraw hood (51) and withdraw filter element (52) from the holding rod.  Insert new sealing ring (53) and new filter element and secure hood (51) with nut (50).

Fig. 3-62:

3-64

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OPERATING INSTRUCTIONS RH 70 Inspection and servicing High-pressure filter for working hydraulics To filter the hydraulic oil on the high-pressure side of the working hydraulic system, the machine is equipped with two high-pressure filters (30, Fig. 3-63:).

Checking/cleaning the filter elements  Unscrew filter housing (31, Fig. 3-63:) and pour out the oil.  Withdraw filter element (32) from housing (31).

Fig. 3-63:

Read and observe the "Inspection and servicing – Safety instructions" chapter.

Fig. 3-64:

Checking/changing the filter elements Shut off the engine.

Risk of scalding caused by hot hydraulic oil.

The filter housings themselves may also be hot.

Avoid skin contact.

Skin contact with hydraulic oil may cause skin injury.

Wear protective gloves and firm working clothing.

Wear fall arresters before working on the hydraulic tank.

Collect escaping hydraulic oil and discard without polluting the environment.

 Clean filter housing and contact faces at the filter head (35, Fig. 3-64:) with white spirit or paraffin oil and replace, if required.  Insert filter element into housing (31, Fig. 11) and attach to the filter head (35) with new, slightly oiled sealing rings (33 and 34) and a new retaining ring (36).

Check high-pressure filter for leaks after the system has been put into operation.

Replacing the filter elements  Detach the filter element as described under "Checking the filter elements".  Clean filter housing (9, Fig. 3-64:) and the sealing faces at the filter head with white spirit or paraffin oil.  Insert new filter element into filter housing (9) and refit to the filter head with new, lightly oiled sealing rings (10 and 14) and a new retaining ring (13).

Check high-pressure filter for leaks after putting it into operation.

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3-65

OPERATING INSTRUCTIONS RH 70 Inspection and servicing High-pressure filters for the servo circuit and the feeding circuit of the swing pump

Checking/cleaning the filter elements

The excavator is equipped with a high-pressure filter (40, Fig. 3-65:) for the servo circuit and another filter (41) for the feeding circuit of the swing pump.

 Withdraw filter element (43) from housing (42).

Check filter tell-tales (1, Fig. 3-65:) regulary - at operating temperature - for indication of contamination. If the red sector is visible through transparent cap (2), the filter element must be cleaned or changed.

 Unscrew filter housing (42, Fig. 3-66:) and pour out the oil.

 Clean filter housing and contact faces at the filter head with white spirit or paraffin oil.  Insert filter element into housing (42) and attach to the filter head with a new, slightly oiled sealing ring (46).  Check the high-pressure filter for leaks after thesystem has been put into operation.

Fig. 3-65:

Read and observe: "Inspection and servicing - Safety instructions".

Fig. 3-66:

Replacing the filter elements Shut off the engine.

Risk of scalding from hot hydraulic oil.

The filter housings may also be hot.

Avoid skin contact.

 Detach the filter elements as described under "Checking the filter elements".  Insert new assemble.

filter

element

(43)

and

re-

 Check the high-pressure filter for leaks after putting it into operation.

Skin contact with hydraulic oil may cause skin injury.

Wear protective gloves and firm protective clothing.

Collect escaping hydraulic oil and discard without polluting the environment.

3-66

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Changing the hydraulic oil

Drawing off hydaulic oil  Bring the hydraulic oil to operating temperature (abt. 50 ° C / 122° F).

Read and observe the "Inspection and servicing - Safety instructions" chapter.

Shut off the engine.

Risk of scalding caused by hot hydraulic oil.

 Position the machine with a slight inclination towards the drain valve (5, Fig. 3-67:).

The drain valve is located at the back of the hydraulic oil reservoir and accessible from the bottom.

The hydraulic oil reservoir itself may also be hot.

 Retract the hydraulic cylinders as far as possible and stand the working equipment on the ground.

Avoid skin contact.

 Shut off the engine.

Skin contact with hydraulic oil may cause skin injury.

 Place suitable recipients under the drain valve (5) of the hydraulic oil reservoir. For the required capacity refer to the "Refilling quantities - Oil" table.

Wear protective gloves and firm working clothing.

Wear fall arresters before working on the hydraulic tank.

Collect escaping oil and discard without polluting the environment.

Do not start up the drive engine when the hydraulic oil reservoir is empty. The hydraulic pumps may be destroyed if they are allowed to run dry.

 Connect hose (15) to drain valve (5) and drain off used oil completely. Draining is facilitated if the breather filter (6, Fig. 3-68:) is removed during the process.

The use of the oil draining hose is described in the "Draining hose for oil changes" section. Â Remove hose. The drain valve closes automatically.

Fig. 3-68: Fig. 3-67:

BA RH70(3 720 820.01)-EN

3-67

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Cleaning the hydraulic oil reservoir

Explosion hazard.

Read and observe the "Inspection and servicing - Safety instructions" chapter.

 Place a collecting recipient for the flushing oil under the hydraulic oil reservoir.  Clean the inside of the hydraulic oil reservoir with diesel fuel or flushing oil.

Remove all sediments and also the residues of the cleaning agent thoroughly  Refit cap (7).

Shut off the engine.

 Fill in hydraulic oil as described under "Topping up with hydraulic oil".

Use diesel fuel or a special flushing oil.

 Vent the hydraulic system.

Do not use white spirit, paraffin oil or other solvents for cleaning.

 Check the oil level in the hydraulic oil reservoir and top up with oil, if required.

Avoid skin contact.

Skin contact with hydraulic oil may cause skin injury.

Wear protective gloves and firm working clothing.

Wear fall arresters before working on the hydraulic tank.

Dispose of contaminated hydraulic oil without polluting the environment and separately from other waste. Â Drain off hydraulic oil as described under "Draining off the hydraulic oil". Â Remove cap (7, Fig. 3-69:).

Fig. 3-69:

3-68

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Electronic excavator control Joystick Apply a thin layer of hydraulic oil regularly on the control spools of the joysticks (arrows, Fig. 3-70:) to prevent jamming of the joysticks.

Pedal Apply a thin layer of hydraulic oil regularly on the control spools of the pedals (arrows, Fig. 3-71:) to prevent jamming of the control spools.

Fig. 3-70: Fig. 3-71:

Make sure the hydraulic oil does not flow down along the control spools into the electronic control circuits where it might cause damage.

BA RH70(3 720 820.01)-EN

Make sure the hydraulic oil does not flow down along the control spools into the electronic control circuits where it might cause damage.

3-69

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Venting the hydraulic system Hydraulic pumps, hydraulic motors, hydraulic cylinders, travel brake valves, suction lines of hydraulic pumps, oil cooler manifolds and the servo control system must be vented

after assembly on site and prior to initial commissioning,

before each recommissioning of the excavator, e.g. after extensive repair work to the hydraulic system or after prolonged downtimes,

after each hydraulic oil change,

after replacement of hoses or lines.

Venting the hydraulic components

Fig. 3-73:

Hydraulic pumps and hydraulic motors (with engine shut off).

Always admit oil first to that side of the cylinder where the piston (2) is. This is

 Open the highest leakage oil port and fill in clean hydraulic oil up to the lower edge of the opening.

the piston-side port (3) when the piston rod is retracted (1, Fig. 3-72:),

 Check the hydraulic system under load.

the rod-side port (4) when the piston rod is extended (1, Fig. 3-73:).

 Pay attention to noises produced by the hydraulic pump or the hydraulic motors. Abrupt movements of the working equipment are a sign of entrapped air in the system. Remaining air pockets can be eliminated by actuating all hydraulic functions.

Hydraulic cylinder Before the initial admission of the cylinder with oil, the piston must be in either of the two extreme piston positions. In other words, the piston rod (1, Fig. 3-72: and Fig. 3-73:) must be either completely retracted or completely extended.

If, for assembly reasons, the piston rod is inmiddle position, admit oil first to the piston-side port (4).

When oil is admitted for the first time to the cylinder, the oil flow must be reduced. Therefore extend or retract the piston rod as slowly as possible.

The screws/nozzles of the following components must be opened until oil emerges bubble-free from the opening: Always vent only the system section that has been opened.

the travel brake valve at the venting screw,

the oil cooler manifold at the mini-measuring ports,

the servo system at the venting screws of the control blocks (under the servo caps),

the intake line at the venting screw (with drive motors stationary).

Fig. 3-72:

3-70

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Cleaning the hydraulic oil cooler

Cleaning  Remove the grid (7, Fig. 3-75:) above the cooler.

Risk of injury from rotating cooler fan blades.

Shut off the engine.

Never start cleaning work until the cooler fan blades have stopped turning.

The hydraulic oil coolers reach the same temperature as the hydraulic oil. Risk of burning.

Allow the hydraulic oil cooler to cool down.

Wear protective gloves and firm protective clothing.

 Blow the cooling fins clean with compressed air proceeding from top to bottom.

Loose dirt drops through the cooler down to the ground.

If the machine is used in places with heavily contaminated ambient air, the hydraulic oil coolers must be cleaned more often than specified in the servicing plan.

The speeds of the fan motors are thermostatcontrolled. The fan motors run at maximum speed when the hydraulic oil temperature reaches ca.

60°C / 140° F.

BA RH70(3 720 820.01)-EN

Fig. 3-74:

3-71

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Pressure accumulator To permit lowering of the working equipment in case of emergency, the machine is equipped with a pressure accumulator (1, Fig. 3-75:).

The pressure accumulator (1) is located under the superstructure baseplate.

The following regulations are applicable only in the Federal Republic of Germany. Please observe the corresponding regulations in your own country.

Extract from the German acceptance regulations Hydraulic accumulators are pressure vessels and are therefore subject to the "Druckbehälterverordnung (DruckbehV)" [Pressure Vessel Regulations]. Their installation, equipment and operation are governed by the "Technische Regeln Druckbehälter (TRB)" [Technical Rules for Pressure Vessels]. The pressure vessels of hydraulic accumulators are classified by the admissible operating pressure p in bars, the capacity l in liters and the product of pressure and capacity p x l. Depending on the class to which the accumulator belongs, the following inspections are mandatory: Checking the gas charging pressure in the pressure accumulator After commissioning (new installation or repair), the gas charging pressure in the pressure vessel must be checked at least once during the first week. If no pressure loss is detected, the second pressure test must be performed after ca. 3 months. If no pressure loss is detected in this test either, the testing interval can be fixed at once pressure test each year.

Fig. 3-75:

Extract from the German regulations The accumulator vessel must not be subjected to welding, soldering or any other mechanical work.

Work on systems containing accumulators (repairs, connection of pressure gauges or similar work) may be carried out only when the fluid pressure has been released

Group

Inspections prior to commissioning

Regular

at the factory

at the place of use

inspections

II

Pressure testing

Inspection certificate

p ≥ l bar

Prototype and pressure test certified by the manufacturer

(Check of correctness and correct installation)

Inspection schedule to be drawn up by end user, based on experience with type of operation and fluid.

and p·x l ≤ 200

3-72

issued by an expert

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing PUMP TRANSFER GEARBOX Read and observe: "Inspection and servicing - Safety instructions.

Pre-chamber Checking oil level

Read and observe: "Inspection and servicing Safety instructions.

Shut off the engine The gearbox housings may be hot, too.

Secure the machine as described in the "Securing the machine" section.

Protect the skin from contact with gearbox oil.

Skin contact with cooling liquid is a potential health hazard.

Wear protective gloves and firm working clothing.

The oil level in the pre-chambers is visually at the inspection glas (3, Fig. 3-77) in expansion reservoir (1).

The oil level should reach up at least to the middle of the inspection glas (3). Top up with gearbox oil, if required.

Checking the gearbox oil level / Topping up with oil Park the machine as described in the "Securing the machine" section. Â Screw out dipstick (1, Fig. 3-76:) and wipe clean. Â Insert dipstick (1) fully again and withdraw a second time.

The oil level must reach up at least to the lower mark on dipstick (1). Top up with gearbox oil, if required.

Fig. 3-77

 Screw dipstick (1) back in place.

Fig. 3-76:

BA RH70(3 720 820.01)-EN

3-73

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Changing the gearbox oil

Pre-chamber

Draining off oil

Draining off oil

 Prepare a collecting recipient for used oil.

 Prepare a collecting recipient for used oil.

Choose the required capacity in accordance with the "Refilling quantities - Oil" table.

Choose the required capacity in accordance with the "Refilling quantities - Oil" table.

 Unscrew plug (3, Fig. 3-78:) and drain off oil.

 Unscrew plug (7, Fig. 3-78:) and drain off oil.

Screwing out breather filter (2) facilitates draining off the used oil. Plug (3) is accessible from the bottom.

Plug (7) is accessible from the bottom.

 Screw plug (3) back in place.

 Screw plug (7) back in place.

Filling in oil  Unscrew breather filter (2, Fig. 3-79).  Fill in new oil through opening of breather filter (2).

The oil level should reach up at least to the middle of the inspection glas (3).

Fig. 3-78:

Filling in oil  Unscrew breather filter (2, Fig. 3-78:).  Fill in new oil through opening of breather filter (2). After oil changes, plug (3) must be tightened beforehand.

Fig. 3-79

 Check oil level with dipstick (1).

Oil can also be filled in through the opening of the breather filter (2, Fig. 3-79).

3-74

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Gearbox venting

Pre-chamber

The gearbox is vented through breather filter (2, Fig. 3-80:).

The pre-chambers are vented through breather filter (2, Fig. 3-81:).

Clean breather filter in accordance with the servicing plan.

Clean breather filter in accordance with the servicing plan.

 Unscrew breather filter, clean in white spirit or paraffin oil and blow dry with compressed air.

 Unscrew breather filter, clean in white spirit or paraffin oil and blow dry with compressed air.

 Screw breather filter back in place.

 Screw breather filter back in place.

Fig. 3-80:

BA RH70(3 720 820.01)-EN

Fig. 3-81:

3-75

OPERATING INSTRUCTIONS RH 70 Inspection and servicing SWING GEARBOX Read and observe: "Inspection and servicing - Safety instructions.

Shut off the engine

Changing the gearbox oil  Prepare a collecting recipient for used oil.

Choose the required capacity in accordance with the "Refilling quantities - Oil" table.

The gearbox housings may be hot, too.

Secure the machine as described in the "Securing the machine" section.

Protect the skin from contact with gearbox oil.

Skin contact with cooling liquid is a potential health hazard.

Wear protective gloves and firm working clothing.

Fig. 3-83:

Draining off oil  Attach hose (8, Fig. 3-83:) to drain valve (7) and drain off oil completely.

The use of the oil draining hose is described in the "Draining hose for oil changes" chapter.

Fig. 3-82:

Gearbox - Checking the oil level / Topping up with oil

The drain valve (7, Fig. 3-83:) is accessible from the undercarriage. Â Remove hose. The oil drain valve closes automatically.for oil and cooling liquid change" section.

 Park the machine as described under "Securing the machine".  Screw out dipstick (1, Fig. 3-76:) and wipe clean.  Insert dipstick (1) fully again (do not screw in) and withdraw a second time.

The oil level must reach up at least to the lower mark on dipstick (1). Top up with gearbox oil, if required. Â Screw dipstick (1) back in place.

3-76

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Filling in new oil / Topping up Â

Unscrew plug (4, Fig. 3-84:) and fill in new oil.

 Check oil level with dipstick (1, Fig. 3-84:).  Screw in plug (4) again.

Gearbox venting The gearbox is vented through breather filter (2, Fig. 3-84:).

Clean breather filter in accordance with the servicing plan. Â Unscrew breather filter (2), clean in white spirit or paraffin oil and blow dry with compressed air. Â Screw breather filter (2) back in place.

Output pinion Grease bearing regulary.

3

 Fill in approximate 50 cm / 1,7 oz grease through grease nipple (5, Fig. 3-85:) by means of a hand grease pump.

Fig. 3-84:

Fig. 3-85:

BA RH70(3 720 820.01)-EN

3-77

OPERATING INSTRUCTIONS RH 70 Inspection and servicing TRAVEL GAERBOX Read and observe: "Inspection and servicing - Safety instructions.

Shut off the engine The gearbox housings may be hot, too.

Secure the machine as described in the "Securing the machine" section.

Protect the skin from contact with gearbox oil.

Skin contact with cooling liquid is a potential health hazard.

Wear protective gloves and firm working clothing.

Travel gearbox - Changing the oil  Park the machine as described under "Securing the machine".  Place a collecting recipient for used oil under the travel gearbox. Choose the required capacity in accordance with the "Refilling quantities - Oil" table.  Unscrew lower plug (2, Fig. 3-86:) and drain off oil completely. Screwing out the upper plug (1) facilitates draining off the used oil.  Before filling in new oil, screw lower plug (2) back in place.

Filling in new oil / Topping up  Unscrew upper plug (1) and fill in new oil through the borehole until the oil level reaches up to the lower edge of the opening.

Gearbox - Checking the oil level / Topping up with oil  Park the machine as described under "Securing the machine".  Move the excavator until plug (2, Fig. 3-86:) is in the position shown and screw out the upper plug (1).

The oil level should reach up to the lower edge of the opening. Top up with oil, if required.

Fig. 3-86:

3-78

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing CRAWLER TRACKS Cleaning Clean tracks, track and support rollers, sprockets and idlers regularly and whenever required.

Cleaning is especially important in winter to prevent

the tracks from being thrown off

oil from leaking out of track and support rollers, sprockets and idlers

excessive wear

the track from breaking.

Track roller fastening Check fastening screws (3, Fig. 3-88:) regularly for tightness: Â Tighten screws with a torque wrench to the prescribed tightening torque (see: "Technical Handbook").

Fig. 3-88:

Support roller fastening Fig. 3-87:

To clean the tracks: Â raise one side of the excavator with the working equipment and allow track to turn;

Check fastening screws (4, Fig. 3-89) regularly for tightness: Â Tighten screws with a torque wrench to the prescribed tightening torque (see: "Technical Handbook").

 clean the side member supporting the track;  clean track and support rollers (1 and 2 , Fig. 3-87:) thoroughly, especially at those places indicated by arrows;  clean the sliding planes on the idler guides.

Track rollers, support rollers, track pads The track rollers (1, Fig. 3-87:) and the support rollers (2) have a permanent oil filling.

Inspect all track and support rollers visually for leaks and free movement at regular intervals.

BA RH70(3 720 820.01)-EN

Fig. 3-89

3-79

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Track pads Check fastening screws (5, Fig. 3-90:) regularly for tightness: Â Tighten screws with a torque wrench to the prescribed tightening torque (see: "Technical Handbook").

Fig. 3-90:

3-80

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Track tensioner

Function

Design

The tensioning system is under permanent pressure of ca. 110 bar / 1595 psi which keeps both tracks permanently tensioned. Pressure losses are compensated as soon as the engines have been started. Retensioning is not required.

The tracks are tensioned with the help of the hydraulic pressure created during travelling. Fig. 3-91:and Fig. 3-92: show parts of the tracks and the tensioner:

For cleaning and servicing work, the tracks can be slackened.

To do so:  stop the engine  open both pressure limiting valves (6, Fig. 3-92:) to slacken the tracks.  After the work, screw down the pressure limiting valves (6) to the limit stop.

Fig. 3-91:

4

Pressure accumulator

5

Pressure cylinder

6

Pressure limiting valve

9

Mini- measuring port

10

Support roller

11

Drive sprocket

12

Track roller

13

Crawler track

Fig. 3-92:

14

Idler

The pressure-limiting valves (6) are preset to a pressure of 330 bar / 4786 psi and sealed in this position. The lead seal must not be removed and the pressure setting of 330 bar / 4786 psi must not be changed.

Techncal data

The track tensioners are maintenance-free.

Track tensioning pressure

Approx. 110 bar / 1595 psi

Pressure limiting valve

330 bar / 4786 psi

Gas pressure in pressure accumulator (nitrogen filling pressure)

80 bar / 1160 psi

BA RH70(3 720 820.01)-EN

3-81

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Pressure-accumulator inspection regulations

Checking the gas charging pressure in the pressure accumulator After commissioning (new installation or repair), the gas charging pressure in the pressure vessel must be checked at least once during the first week. If no pressure loss is detected, the second pressure test must be performed after ca. 3 months. If no pressure loss is detected in this test either, the testing interval can be fixed at once pressure test each year.

The following regulations are applicable only in Germany. Please observe the relevant regulations in force in your own country.

Extract from the German regulations The accumulator vessel must not be subjected to welding, soldering or any other mechanical work.

Work on systems containing accumulators (repairs, connection of pressure gauges or similar work) may be carried out only when the fluid pressure has been relieved.

Extract from the German acceptance regulations

The above-mentioned pressure tests are required to ensure the functioning of the track tensioner.

They are no substitute for the inspections as required by the "Pressure Vessel Regulations".

Before checking the gas charging pressure (nitrogen filling pressure) in the pressure accumulator, the track must first be slackened, i.e. the hydraulic part of the tensioning system must be depressurized. See: under "Function".

Hydraulic accumulators are pressure vessels and are therefore subject to the "Druckbehälterverordnung (DruckbehV)" [Pressure Vessel Regulations]. Their installation, equipment and operation are governed by the "Technische Regeln Druckbehälter (TRB)" [Technical Rules for Pressure Vessels]. The pressure vessels of hydraulic accumulators are classified by the admissible operating pressure p in bars, the capacity l in liters and the product of pressure and capacity p x l. Depending on the class to which the accumulator belongs, the following inspections are mandatory:

Group III p ≥ l bar p·x l ≥ 200 and

Inspections prior to commissioning

Regular

at the factory

at the place of use

inspections

Preliminary inspection by an expert

Acceptance inspection by an expert

Test programme to be drawn up by end user based upon experience with the type of operation and fluid.

Prototype and pressure test certified by the manufacturer (type approval) or the expert

p x l ≤ 1000

3-82

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing .SWING RING Read and observe: "Inspection and servicing - Safety instructions.

Internal gearing The internal gearing and the pinion are enclosed in a housing (5, Fig. 3-94:). The housing forms a grease-filled trough in which the pinion of the swing mechanism moves.

Shut off the engine.

Wear protective gloves and firm protective clothing.

Swing ring - Instructions The grease filling must be replaced: when repairs have been carried out on the swing ring, the swing ring seals or the swing ring housing.

Remove old grease completely before filling in new grease.

If greater losses are detected, locate cause immediately to prevent damage to the swing ring.

Greases and greasy cleaning rags must not be allowed to pollute the environment. Discard grease and greasy cleaning rags separately from other waste without polluting the environment.

Bearing races

Fig. 3-94:

The grease is pumped to the greasing port of the grease trough by the distributor (Fig. 3-93:). The amount of grease used up during operation is replenished by the central lubricating system.

The housings have a check opening which is closed with a cover (6, Fig. 3-95:For checking, the cover must be removed.

The central lubricating system supplies grease continuously to the two roller bearing races and the internal gearing .

The grease is pumped to the greasing points of the bearing races by a distributor (Fig. 3-93:).

Fig. 3-95:

Fig. 3-93:

BA RH70(3 720 820.01)-EN

3-83

OPERATING INSTRUCTIONS RH 70 Inspection and servicing Swing ring - Checking the grease filling

Read and observe: "Inspection and servicing - Safety instructions.

Shut off the engines Wear protective gloves and firm protective clothing.

At regular intervals

Swing ring - Filling in grease Prior to initial commissioning, the grease trough of the internal gearing must be filled with grease.

Add grease when

the housing has been replaced

old grease has been removed in the course of other work.

Always fill in fresh grease by hand.

Risk of accidents. Never slew the superstructure when refilling grease.

 check internal gearing and teeth of swing mechanism pinion for condition  check that the grease filling is sufficient.

The housing must always contain enough grease for the gearing - measured from its lower edge - to run in at least 20 mm / 0.8 in of grease over its whole circumference (Fig. 3-96:).

In the event of greater grease losses, eliminate cause immediately and add grease to prevent the internal gearing and the pinion from being damaged by continued swing movements.

Swing ring - Checking the screws for tightness The fastening screws of the swing ring in the superstructure and the undercarriage are tightened with their respective check torque (see: "Technical Handbook“).

When these values are reached, the fastening screws are perfectly tight.

Loosen slack screws before tightening them with a torque wrench to the prescribed torque (see: „Technical Handbook“).

Fig. 3-96:

3-84

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing CENTRAL LUBRICATING Design and function The excavator is equipped with an automatic central lubricating system ensuring regular the regular supply of grease to all greasing points except those mentioned in the "Lubricating chart Grease" .

In the event of trouble, shut off engine and rectify.

Check during every working shift

that no grease escapes from the pressurerelief valvesand

that the grease container contains a sufficient amount of grease.

When the electrical system is switched on with the key-switch, the lubricating system is activated.

The level of grease in the container is visible from outside.

All lubricating points connected to the system are greased at regular intervals.

If the amount of grease left in the container is insufficient, refill container through greasing nipple with a manual grease gun or with a mobile service station.

Greasing and pause intervals are controled by the SPC (Stored Program Control).

A grease pump with attached grease container pumps the grease through lines to the main distributors.

BA RH70(3 720 820.01)-EN

Always refill the grease container in time to avoid malfunctions caused by air penetrating into the lubricatingsystem.

3-85

OPERATION MANUAL RH 70 Inspection and servicing The function of the central lubrication system is monitored by a proximity switch (7, fig. 3-96) which is installed at the main distributor (4).

LUBRICATION SYSTEM Design and function

8

The excavator is equipped with an automatic central lubrication system. It serves for a regular lubrication of all lub points except the one lub point listed in the lubrication scheme.

200 100 300 0 bar

400

4 The lubrication is effected by a central lubrication pump (1, fig. 3-95) with attached lubricant reservoir (2).

The pump delivers the lubricant via the main line (3) to the main distributor (4, fig.

3-95).

7 Fig. 3-96

2

The pressure in the main line can be read at the manometer (8), also installed at the main distributor (4).

This also serves for monitoring the system.

200 100 300

5

1

0 bar

400

5 13 6 3

4

6

Fig. 3-95

The main distributor distributes the lubricant in the right proportion through the lines (5, fig. 3-95) to the secondary distributors (6). Those secondary distributors deliver the lubricant to the lub points.

BA RH70 (3 720 820.01)-EN

OPERATION MANUAL RH 70 Inspection and servicing

Check for each operation: - Grease outflow at pressure relief valve - Grease level in the pump reservoir In the case of a malfunction, stop the motor and correct it.

When there is a malfunction in the central lubrication system, the proximity switch (7, fig. 3-97) reports this to the control unit (see malfunctions).

The grease then comes out of the pressure relief valve (9, fig. 3-98).

Correct the malfunction as described under “blockade of a lubrication point”.

8 200 100 300 0 bar

400

The grease level in the pump reservoir (2, fig. 3-98) can be seen from the outside.

The pump is equipped with an electronic grease level control. For this purpose, a capacitive proximity switch (10, fig. 3-98) has been installed into the pump reservoir (2).

When the grease level in the reservoir of the pump (2) drops below a minimum, the proximity switch (10) gives a signal to the control unit (see malfunctions).

Always refill the reservoir of the pump in time, as otherwise air can get into the system and cause trouble.

Fill the pump reservoir with the help of the delivered filling press (11, fig. 3-98).

To do this, unscrew the red cap (12, fig. 398).

The pump can also be filled at the filling nipple (13, fig. 3-98) with the help of a customary hand lever grease press.

4 Please take care of utmost cleanness when filling the pump reservoir.

7 2

Fig. 3-97

11

10

9

12 13

1

Fig. 3-98

BA RH70 (3 720 820.01)-EN

OPERATION MANUAL RH 70 Inspection and servicing

Malfunctions 2 - Blockade of one or several lubrication points - Blockade of a distributor - Interruption of the line to the main distributor - Air in the pump element of the pump - Reservoir empty All these malfunctions are reported to the control unit by the proximity switch at the main distributor (3, fig. 3-99) and by the capacitive proximity switch (10, fig. 3100) in the pump reservoir.

In the case of a malfunction, stop the motor and eliminate it.

8

11

10

9

12 14

1

Fig. 3-100

When the line to the main distributor is interrupted or air is in the pump element (14, fig. 3-100) of the pump, the proximity switch (7, fig. 3-99) receives no longer signals and reports trouble to the control unit.

- Renew main line - Ventilate the pump

200 100

When the reservoir is empty

300 0 bar

400

15

- Fill the reservoir 4

16 17 18

19

20

7 Fig. 3-99

When a lub point or a distributor blocks, the grease will come out of the pressure relief valve.

- Repair the lubrication point - Clean the distributor

BA RH70 (3 720 820.01)-EN

Only start to operate the excavator again, when the lubrication system operates faultless and the concerned lub points have been lubricated in unloaded condition of the of the equipment with a hand lever grease press until grease flows out visibly of the lubrication points.

Use for lubricating the concerned lubrication points the respective lubrication nipple (15-20, fig. 3-99) at the main distributor (see “manual lubrication”)

OPERATION MANUAL RH 70 Inspection and servicing comes out of the lubrication points

Blockade of a lub point - Switch off the ignition, take out the key - Search the secondary distributor with the blocked lubrication point with the help of the lubrication nipples (15-20, fig. 3-102) at the main distributor (4, fig. 3-101 and fig. 3-102). To this purpose, lubricate each lubrication nipple with a hand lever grease press.

At the lubrication nipple for the distributor with the blocked lubrication point will be an almost invincible resistance.

- lubrication nipple (15, Fig. 3-102) for the distributor of the turntable and the lift cylinder below - lubrication nipple (16, Fig. 3-102) for the distributor of the boom foot - lubrication nipple (17, Fig. 3-102) for the distributor of the stick - lubrication nipple (18, Fig. 3-102) for the distributor of the boom - lubrication nipple (19, Fig. 3-102) for the distributor of the stick front - lubrication nipple (20, Fig. 3-102) for the distributor of the connecting link (see distributor designations on the lubrication scheme) - Screw out the fitting (21, fig. 3-103) for the inlet line (5, fig. 3-101 and fig. 3103) at the concerned secondary distributor and replace it by a lubrication nipple.

- Screw off the lines to the lubrication points (22, fig. 3-103) one by one and lubricate them with the hand lever grease press. The line, at which the distributor does not block leads to the blocked lubrication point.

- Repair the lubrication point - Screw on the lines at the secondary distributor again - Lubricate the concerned lubrication circle via the lubrication nipple at the main distributor until grease visibly

2

200 100 300

5

1

0 bar

400

5 14 6 3

4

6

Fig. 3-101

8 200 100 300 0 bar

400

15 4

16 17 18

19

20

7 Fig. 3-102

5

22

21 22

22 22 Fig. 3-103 BA RH70 (3 720 820.01)-EN

OPERATION MANUAL RH 70 Inspection and servicing

Ventilation of the lubricating pump - Refill pump reservoir - Screw off the main line (3, fig. 3-104) of the pump element (14, fig. 3-104) - Operate the lubricating pump until the lubricant comes out of the pump outlet (14) free of air inclusions - Switch off the lubricating pump and close the main line again.

23

2

200 100 300

5

1

0 bar

400

5 14 6 3 6

4

Cleaning the grease sieve Check the grease sieve (23, fig. 3-104) regularly for pollution and clean it, if necessary. Clean the sieve also after the blockade of a lubrication point.

- Loosen the lubrication line with the fitting (24, fig. 3-105) - Loosen the housing for the filter element (25, fig. 3-105) from the fitting for the filter element (26, fig. 3-105) (keep back the fitting (26) with a spanner) - Take out the filter element (27, fig. 3105) and clean it in benzine or petroleum - Put the filter element (27) in again - Take care that the USIT-ring (28, fig. 3105) and the O-ring at the filter element (29, fig. 3-105) don’t get lost - Screw the filter element housing (25) and the filter element fitting (26) with 60 Nm drawing torque together again.

- Screw on the lubrication line with fitting (24) again.

Fig. 3-104

24 25 29 28 26

Fig. 3-105

BA RH70 (3 720 820.01)-EN

27

OPERATION MANUAL RH 70 Inspection and servicing

Manual lubrication Should the central lubrication system fail, there is the possibility to lubricate manually.

This also should be done in the case of extreme use.

The lubrication nipple at the pump element (30, fig. 3-106) can be used for lubricating the whole system when the central lubrication has failed:

30 14

The lubrication nipples at the main distributor can be used for lubricating individual circles.

- Remove lubrication nipple cap - Clean the lubrication nipple - Pump with a hand lever grease press grease into the central lubrication system until grease visibly comes out of all lubrication points connected to this secondary distributor - lubrication nipple (15, fig. 3-107) for the distributor of the turntable and the lift cylinder below - lubrication nipple (16, Fig. 3-107) for the distributor of the boom foot - lubrication nipple (17, Fig. 3-107) for the distributor of the stick - lubrication nipple (18, Fig. 3-107) for the distributor of the boom - lubrication nipple (19, Fig. 3-107) for the distributor of the stick front - lubrication nipple (20, Fig. 3-107) for the distributor of the connecting link (see distributor designation on the lubrication scheme) 8 200

Fig. 3-106

100 300 0

- Take off the lubrication nipple cap - Clean the lubrication nipple - Pump with a hand lever grease press grease into the central lubrication system until grease visibly comes out of all lubrication points - Take care that the used grease is pushed out at all lubrication points.

Only then the connected lubrication points have been supplied with grease - After lubricating the cap of the lubrication nipple on the lubrication nipple again.

bar

400

15 4

16 17 18

19

20

7 Fig. 3-107 - After lubricating, put the lubrication nipple on the lubrication nipple again.

BA RH70 (3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing OTHER MAINTENANCE Heating and air conditioning Change the filter mats in the air suction regulary.

Before starting servicing works on the air conditioner system close ball valves (1, Fig. 3-98:) in the feeding- and the return pipeline to the air conditioner unit (levers are in transvers direction) The ball valves (1) are accessible from the bottom.

The filter mats are located under the driver`seat.

Fig. 3-98: Fig. 3-97:

 Remove cover (1, Fig. 3-97:) Change filter mats (2)  Fasten cover (1) again.

Fig. 3-99:

Open ball valves (1, Fig. 3-99:) after finishing service works on the air conditioner system (levers are in longitudinal direction)

3-86

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Inspection and servicing PUTTING THE EXCAVATOR OUT OF OPERATION AND RECOMMISSIONING Putting the excavator out of operation  Park the excavator on firm and level ground.  Set the working equipment down on the ground, retracting the piston rods of the hydraulic cylinders as far as possible.  Set all control element to "0".  Clean the machine.

Battery storage During prolonged machine downtimes, remove the batteries and store in a dry room at an ambient temperature of ca. 20°C / 68° F. Observe the following points with regard to maintenance: Â Clean the batteries. Â Check the acid density and the electrolyte level of the battery every two weeks. Â Recharge the batteries at the latest, when the acid density has dropped to 1.23 kg/dm³. Â Keep the batteries clean and dry on the outside.

 Lock the superstructure

Recommissioning

 Carry out a visual inspection of the excavator.

 Remove the covers.

 Remove coarse dirt, snow and ice from the fins and fan wheel of the hydraulic oil cooler.

 Degrease / clean all protected components.

 Carry out engine preservation  Protect all bright metal parts (e.g. piston rods) from rust and dirt.

 Remove engine preservation in acc. with the engine operationg anstructions  Unlock the superstructure  Check the fuel level in tank

 Check anti-freeze concentration of the cooling liquid to avoid freezing during the cold season.

 Check track tension (visual inspection)

 Fill up the fuel tank.

 Check level and condition of the cooling liquid in the cooling system.

 Remove the batteries; see: "Battery storage".  Secure the machine against unauthorized starting by: - withdrawing the key from the key-switch - locking the cab door - securing all lockable hatches.  Cover up all openings

 Check grease filling in grease container.  Oil level

- drive engine - swing gearbox - pump transfer gearbox - travel gearboxes

 Check oil level in hydraulic oil reservoir.  Check battery acid density and level.  Install batteries and reconnect.Function checks: - superstructure holding brake - track brake - lighting system - signalling equipmentCheck vacuummeter.  Vent the hydraulic system.

BA RH70(3 720 820.01)-EN

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OPERATING INSTRUCTIONS RH 70 Inspection and servicing

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OPERATING INSTRUCTIONS RH 70 Inspection and servicing NOTES .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. ..............................................................................................................................................................................

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OPERATING INSTRUCTIONS RH 70 Inspection and servicing

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OPERATING INSTRUCTIONS RH 70 Repair work 4 REPAIR WORK Operating instructions

Part 1 INTRODUCTION FUNDAMENTAL SAFETY INSTRUCTIONS Part 2 OPERATION

Target group

Operating personnel + Inspection and servicing personnel + Repair personnel Operating personnel The operating personnel must have knowhow relevant to the operation and the application of this or comparable machines.

Part 3 INSPECTION AND SERVICING

Part 4 REPAIR WORK

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

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

Part 5 ANNEX

Part 6 INDEX

BA RH70(3 720 820.01)-EN

Operating personnel + Inspection and servicing personnel + Repair personnel Operating personnel + Inspection and servicing personnel + Repair personnel

4-1

OPERATING INSTRUCTIONS RH 70 Repair work

4-2

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Repair work REPAIR WORK - SAFETY INSTRUCTIONS Operating instructions Never carry out repair work without having read and understood the operating instructions.

Pay special attention to: "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 must be kept with the machine at all times.

Repair personnel Repair personnel must have know-how and experience relevant to repairing this or comparable machines.

In the absence of such know-how, meticulous training must be given by experienced repair personnel, e.g. from Terex|O&K. Working in greater heights Always wear safety harnesses when working at greater heights.

Prestressed units Never open defective prestressed units but replace them as an entirety.

In exceptional cases, open only when the system and the operating sequence are precisely known and any special tools required are available.

The operating manual contains no information on this point.

Dismantling components Never do dismantling while the machine is at operating temperature.

Oils, greases, or coolants may have a high temperature and result in burning or scalding.

Leave time for the machine to cool down.

Before starting work, depressurize piping and hoses, cylinders, radiator, hydraulic tank 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 faciliate re-assembly.

When dismantling the component, close off exposed hose and piping connections, exposed drill holes and housings carefully to prevent any dirt from penetrating.

Wear an approved safety harness; it must be equipped with fall arresters and safety cables.

BA RH70(3 720 820.01)-EN

4-3

OPERATING INSTRUCTIONS RH 70 Repair work Never remove lead seals Never change rated pressure of pressure relief valves without the explicit authorization of Terex|O&K. 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, re-assemble all protective devices, covers and noise- and vibrationinsulation material.

Never start up the drive engines while work is being done on the machine.

Check the repaired components and all machine functions in a trial run.

Never release the machine for recommissioning until it is fully functioning.

4-4

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Repair work FIRE AND EXPLOSION HAZARD Safety Instructions Prior to commencing work, inform on the national and corporate rules for prevention of accidents. Pay particular attention to hazards caused by combustible and easily flammable substances.

on the safe handling of the fire extinguishers to be used.

Flying sparks (caused by welding, flame cutting, grinding, electrical short-circuit) may cause fire on the ground that can spread to the excavator.

Place suitable fire guardings (fire barriers) if open fire or flying sparks cannot be avoided during repair work. Apply special protection to cables, cable ducts as well as to hose and pipe lines.

If necessary, also cover the ground with fireprotective blankets.

Ensure sufficient ventilation.

Clean the excavator before starting a job.

Avoid smoking and open fire on, next to and below the excavator.

Combustible and easily flammable substances or liquids increase the fire and explosion hazard.

Do not store or handle any flammable substances during operation.

Clean the excavator thoroughly, if possible, with a steam jet (rubber parts and electric components with compressed air - refer to information label), when, for example, oil, grease, fuel or cleaner was spilled.

Such substances may spontaneously ignite if they get into the vicinity of hot units or objects such as turbo superchargers.

Even battery gases can ignite in open flames or fire.

Avoid parking the excavator in places where

combustible substances such as coal dust or tar are present.

open or smouldering fire may occur.

Do not keep any fire extinguishers that are not suitable or have not been tested.

Do not extinguish flammable liquids with water.

Use:

dry-powder,

carbon-dioxide or

foam extinguishing compounds.

When getting into contact with burning substances, the fire-fighting water would abruptly evaporate and distribute the substance such as oil over a wide area. Water causes short-circuits in the electrical system thus possibly entailing new hazards.

Call the fire brigade.

Have all your welding, flame cutting and grinding work approved.

Remove the excavator from such an area where combustible or easily flammable liquids have spilled from the excavator onto the ground.

BA RH70(3 720 820.01)-EN

4-5

OPERATING INSTRUCTIONS RH 70 Repair work ENGINE Read and observe the "Repair Safety instructions" chapter and the engine operating instructions before working on the engine.

Risk of injury caused by rotating or hot parts of the engine.

Shut off the engine and allow to cool down.

Carry out repair work only if the machine has been secured as described in the "Securing the machine" section of these operating instructions.

Check and replace V-belts only when the engine is stationary.

4-6

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Repair work ELECTRICAL SYSTEM

Assisted starting (with jumper cables)

Assisted starting (with jumper cables) – Safety instructions

Prior to assisted starting

Keep any potential ignition sources, such as unshielded lights or burning cigarettes, away from the batteries. Battery gases are highly flammable. Explosion hazard.

Do not lean over the batteries when starting the machine from another vehicle.

Risk of injury from acid splashes and battery gases.

Never use assisted starting when the batteries are defective or frozen.

Read and observe the section: "Assisted starting – Safety instructions".

Starting the engine with jumper cables (external batteries Before connecting the jumper cables (external bateries) check the own batteries for proper operation. Checking is done by switching on the excavator's electrical system.

Do not switch on electrical consumers (e.g. floodlamps) when checking the batteries. In case of doubt, remove the batteries and have them tested.

Assisted starting with batteries installed

Never connect batteries (battery assemblies) unless they have the same voltage.

Use only tested jumper cables with insulated terminal clips and an adequate lead diameter.

 Connect first the positive terminal of the jumper cable to the batteries and then to the supplying unit.  Connect the negative terminals in the same order.

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.

 After starting, disconnect the jumper cable in reverse order, i.e. first the negative terminal and then the positive terminal.

Never use welding generators or welding transformers as a source of current.

Do not disconnect the starting aid when the engine is running.

Position the jumper cables 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".

BA RH70(3 720 820.01)-EN

Assisted starting without batteries installed (only for engine trial run)

After disconnecting, the alternator runs without batteries. Â Connect the jumper cable in the above- described order and disconnect after starting. Â Switch off all consumers at the receiving machine and turn the key-operated switch to "0" Â Switch off all consumers at the supplying machine (charged batteries) and shut off the engine.

4-7

OPERATING INSTRUCTIONS RH 70 Repair work Connecting the jumper cables  Connect the red jumper cable to the positive pole of the empty battery (1,Fig. 4-1:), then to the positive pole of the charged battery (2).  Connect the black jumper cable first to the negative pole of the charged battery (3), then to the negative pole of the empty battery (4).

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 discarged batteríes as possible.

Starting up the engine  Start up the engines of the supplying machine and run 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 thenstart again. Â When the engine has started up, continue running both machines in no-load operation for about two or three minutes with the jumper cables still connected.

Disconnecting the jumper cables  Negative pole at the receiving machine (4)  Negative pole at the supplying machine (3)  Positive pole at the supplying machine (2)  Positive pole at the receiving machine (1)  For machines with electronic modules: - Run engine for about half an jour at low speed. The batteries are partially charged.

- Shut off engine - Make all electrical connections to the modules.

- Start up engine without jumper cables.

Fig. 4-1:

4-8

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Repair work HYDRAULIC SYSTEM Repair Always depressurize the hydraulic system before disconnecting any hydraulic hoses.

Replace damaged or leaking hydraulic hoses by new ones. Use original Terex|O&K spare parts.

These parts are specially suitable for the respective function. Do not re-use used hoses.

Dispose of spilt oil and oily wastes without polluting the environment. These wastes must not be allowed to penetrate into the soil.

Hydraulic hoses should be replaced after a service life of 6 years.

Read and observe also the "Inspection and servicing - Safety instructions" chapter.

BA RH70(3 720 820.01)-EN

4-9

OPERATING INSTRUCTIONS RH 70 Repair work PRESSURE ACCUMULATORS SAFETY INSTRUCTIONS The hydraulic system is equipped with pressure accumulators containing nitrogen under high initial pressure.

Even when the hydraulic pressure in the system is reduced, the nitrogen in the accumulator will remain under pressure.

The accumulators are completely safe in operation. If incorrectly handled, however, there is a risk of explosion.

So: Â Never handle accumulators mechanically, never weld or solder. Â Testing and servicing work must be carried out by experts only. Â Prior to any testing and servicing work, depressurize the hydraulic part of the system. Â To dismantle the accumulator, always wear goggles and working gloves. Â Fill accumulator with nitrogen only, never with compressed air or oxygen. Â Report any defects or damage to the machine owner without delay. Â Prior to recommissioning, an inspection by a specialist or expert is essential if the accumulator was damaged or if the admissible operating temperature or operating pressure was exceeded.

Never remove or paint over warning and information plates, rating plates or type identification markings. Replace illegible or damaged plates immediately

4-10

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Repair work WELDING OPERATIONS SAFETY INSTRUCTIONS Never perform welding operations unless you are qualified to do so.

Observe the accident prevention regulations.

Wear protective clothing

protective suit

protective gloves

face protection

Any work on receptacles that contain or have contained substances

which are combustible or which encourage combustion,

which are susceptible to explosion,

or which may develop health-hazardous gases, vapours, mist or dust

Before start welding, disconnect all electric connections, terminals and plugs from all electric and electronic components.

Protect the disconnected terminals and plugs from short-circuiting and soiling by covering them with foil or adhesive tape.

Attach the welding-current pincers close to the welding zone (max. 2 - 3 m / 6.5 – 9.8 ft).

The welding current must not flow via the ball resp. the roller bearing swing ring, via pin couplings, articulated joints or hydraulic cylinders.

An electric current flowing over an air gap (in an articulated joint, for instance) generates sparks that damage metallic surfaces.

On completion of the welding operation, restore all electrical connections.

during welding operations must be carried out only under expert supervision and only by experienced persons authorized to do such work.

Detailed information on the correct execution of welding operations is given in the technical manual "Welding for maintenance and repair".

Should you have any problems or queries, apply to the Terex|O&K after-sales service department.

If parts of the machine have to be dimantled, read and take note of the following sections: Assembling attachments - safety instructions", "Inspection and servicing - safety instructions", "Repair - safety instructions".

BA RH70(3 720 820.01)-EN

4-11

OPERATING INSTRUCTIONS RH 70 Repair work

4-12

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OPERATING INSTRUCTIONS RH 70 Repair work NOTES .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. ..............................................................................................................................................................................

BA RH70(3 720 820.01)-EN

4-13

OPERATING INSTRUCTIONS RH 70 Repair work

4-14

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Annex 5 ANNEX Operating instructions

Part 1 INTRODUCTION FUNDAMENTAL SAFETY INSTRUCTIONS Part 2 OPERATION

Target group

Operating personnel + Inspection and servicing personnel + Repair personnel Operating personnel The operating personnel must have knowhow relevant to the operation and the application of this or comparable machines.

Part 3 INSPECTION AND SERVICING Part 4 REPAIR WORK

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

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

Part 5 ANNEX

Part 6 INDEX

BA RH70(3 720 820.01)-EN

Operating personnel + Inspection and servicing personnel + Repair personnel Operating personnel + Inspection and servicing personnel + Repair personnel

5-1

OPERATING INSTRUCTIONS RH 70 Annex

5-2

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Annex TROUBLESHOOTING Instructions on troubleshooting

Layout of the fault table

Faults are often due to the machine not being correctly operated or serviced.

Fault

For this reason, it is vital to read through the relevant section of the operating instructions once again before rectifying any faults.

The fault is described here as the outcome of an observation or a previous activity.

Therefore make careful observations.

If you are unable to detect the cause of the fault or to rectify it, apply to the Terex|O&K after-sales service.

Study the problem carefully. First think, then act.

Describe the fault and all accompanying circumstances as precisely as possible when calling on the Terex|O&K after-sales service. Exact data allow for fast troubleshooting.

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?

Never do any jobs for which you are not qualified.

The 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.

Ask yourself the following questions:

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.

Measures This describes the troubleshooting procedure.

Section This specifies where information on troubleshooting is given in the operating instructions. If there is no entry, the Terex|O&K after-sales service should be consulted

BA RH70(3 720 820.01)-EN

5-3

OPERATING INSTRUCTIONS RH 70 Annex FAULT TABLES Combustion engine - Fault table Fault Engine fails to start or starts only with difficulty Engine does not turn Engine starts, but runs enevenly or intermittently Engine gets too hot, temperature warning activated Engine not working at full power Engine not working on full cylinder papacity Engine without oil pressure or oil pressure too low Engine oil comsumption too high Engine emits blue smoke Engine emits white smoke Engine emits black smoke Engine cannot be stopped Engine throttled down strongly Cause Oil level too low •

• ••

Oil level too high

••

Engine inclination too big

••• • •

•

•

•

•

• • •• •

Engine oil of wrong SAE-class Fuel quality not corresponding to specification

• •

•

Air filter contaminated / turbo-charger defective

•

Fuel filter contaminated Charge-air line leaking Radiator / cooling fins contaminated

•

Cooling fan or water pump defective or loose

•

Cooling air gets too hot / heat buid-up Battery defective or discharged Cable connections in starter circuit loose or corroded Starter defective or pinion not in mesh Shut-off relay jamming Incorrect valve setting

• • • • •

••••

•

• •

• •• ••••

••

• • •

•

••

•

Injection line leaking Injection valve defective Combustion engine blocked on output side • PMS malfunction • Celect coding lamp flashing/lit Celect defective (software error)

Remedial action Check P Adjust E Replace W Top up A Reduce S Clean R

1) Contact the Terex|O&K Service

Chapter ref.

Engine oil level Engine oil level Engine Op. Instr.

Lubricants Engine Op. Instr.

Air intake syst.

Fuel filter Cooler ning Engine Instr.

Battery

Engine Instr.

Engine Instr.

A S P W W P

P/W P clea- R Op. P/W P P P P 1) Op. E P Op. P/W 1) 1) 1) 1)

,

5-4

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Annex Working hydraulics – Fault table

Fault

Remedial action

Working and swing functions not operational No boom function No bucket function No backhoe function No stick function Working movements too slow Power loss in working hydraulics

Check Adjust Replace Top up Reduce Clean

P E W A S R

1) Contact the Terex|O&K Uncontrolled working movements Service Cause Abschnitt Servo control not activated/defective Working P • 1) • • • • • • Malfunction of pressure-relief valve 1) • • Servo system pump defective 1) • • • • • • Malfunction of primary / sencondary pressure-relief valves Engine speed too low P • ECO-power switch in 80%-position P • Fuel filter contaminated Fuel filter P/W • Insufficient engine power Engine 1) • malfunction Hydraulic oil temperatur too high (warning lamp lit, PMS fault indicator Hydraulic oil P/R • lamp lit) oil cooler contaminated cooler cleaning Engine coolant temperature too high (warning lamp lit and PMS fault 1) • indicator lamp flashing) 1) • Malfunction of solenoid valves 1) • • Malfunction of control spool Engine coupling defective •

BA RH70(3 720 820.01)-EN

5-5

OPERATING INSTRUCTIONS RH 70 Annex Track drive – Fault table

Fault

Remedial action

No forward travel and no reversing travel Maximum travel speed cannot be reached Insufficient traction power

• • •

• • • • • • • • •

5-6

• • • •

Cause Malfunction of pressure-relief valves Servo system pump defective Malfunction of travel valve (pedal) Engine nominal speed too low Malfunction of control spool ECO-power switch in 80%-position Insufficient engine power

Check Adjust Replace Top up Reduce Clean

P E W A S R

1) Contact the Terex|O&K Service Chapter ref.

1) 1) 1) 1) 1) Travelling P Engine mal- 1) fuction Hydraulic oil temperatur too high (warning lamp lit, PMS fault indi- Hydraulic oil P/R cator lamp lit) oil cooler contaminated cooler cleaning Engine coolant temperature too high (warning lamp lit and PMS 1) fault indicator lamp flashing)

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Annex Swing mechnism – Fault table

Fault

Remedial action

No swing possible Check Adjust Replace Swing performance insufficient Top up Reduce Uncontrolled swing movement Clean 1) Contact the Terex|O&K Service Cause Chapter ref.

Servo control not activated / defective Working Endschalter Aufstiegleiter (Option) defekt, nicht vollständig einge- Operation fahren Superstructure holding brake applied Pressure-relief valve adjusted too low level / defective • Servo system pump defective Malfunction in feed-pressure circuit of swing pump • Malfunction in high-pressure circuit of swing system • Malfuction of moment-regulating valve • • Malfunction in swing pump displacement cylinder Excessive leakage in swing motor •

No righthand or lefthand swing

• • • • • • • •

BA RH70(3 720 820.01)-EN

P E W A S R

P P P 1) 1) 1) 1) 1) 1) 1)

5-7

OPERATING INSTRUCTIONS RH 70 Annex Central lubricating system – Fault table

Fault

Remedial action

Grease pump not working, the BCS does not indicate a warning Automatic circuit breaker on Grease pump not working, pilot lamp lit Grease pump working, no grease delivered Greasing pressure too high or too low

• • • •

• • •

•

• • • •

5-8

• • •

•

Cause Timer defective Lines between timer and hydraulic motor defective Hydraulikmotor defektive Grease pump defective Grease sieve clogged Distributor defective Grease container empty Grease pump does not suck grease Leaky lines Non-return valve defective Pressure switch defective

Check P Adjust E Replace W Top up A Reduce S Clean R Vent L 1) Contact the Terex|O&Ky Service Chapter ref.

P/W P/W P/W P/W P/R P/W P/A P/L P/L P/W E

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Annex HYDRAULIC CIRCUIT DIAGRAM Detailled information can be found in the „Technical Handbook“ chapter 8 or contact Terex|O&K Service.

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OPERATING INSTRUCTIONS RH 70 Annex

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OPERATING INSTRUCTIONS RH 70 Annex ABBREVIATIONS A abt. acc.

Ah API approx.

Ampere (SI base unit of electric current) about according to Ampere hours (SI base unit of quantity of electricity) American Petroleum Institute approximately

BA Bh

= OI = Operating instructions = OH = Operating hour

CE

Communauté Européenne = European community Committee for european Construction Equipment (Defines a measure for bucket, grab or scoop filling) European Standardization Committee 1 centimeter (= /100 m) Cubic centimeters per revolution

CECE

CEN cm 3 cm /rev

dia.

DIN eff. e.g. etc.

effective for example etcetera

Fig. FOPS FS ft

Figure, serial number of illustration Falling objects protective structures Face shovel (working equipment) foot

gal GLR

gallon (3.71 litres) Full-load controller (electronic module for PMS)

HD Hydr.

Heavy duty Hydraulic, Hydraulics

i i.e.

IFN

id est = that is ISO service rating, blocked

Transmission ratio

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including, inclusive of International Standardization Organization

kg 3 kg/dm

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)

km/h kNm kW

Decibel (sound intensity according measuring method A) Diameter German Industrial Standard

dB(A)

Incl.

ISO

to

l lb Lb/in² LC LED l/min LpA LS LS LwA

Liter pound Pounds per square inch (= psi) Long crawler Light-emitting diode Liters per minute Sound pressure at workplace Limited slip Load sensing Sound power level of the machine in stationary operation

m MA MA max. min.

-1 min mm

Meters Tightening torque 1 Milliampere (= /1000A) maximal, maximum minimal, minimum Revolutions per minute Millimeter (=1/1000 m)

N N, kN NLGI NLGI-Klasse Nm No.

Normal, standard version Newton, kiloNewton (unit of force) National Lubricating Grease Institute (USA) Consistency - lubricant classification acc. to DIN 51 818 Newtonmeter (unit of torque) Number

OH op.inst.

OW

Operating hour Operating instructions Superstructure

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OPERATING INSTRUCTIONS RH 70 Annex ABBREVIATIONS

PMS P/No. PS

Pump Managing System Part number (Terex) Metric horsepower (1 PS = 0.74 kW)

Qty.

Quantity

R, r resp.

RH ROPS rpm

Radius Respectively Crawler hydraulics (excavator) Roll-over protective structures -1 Revolutions per minute (= min )

SAE sec./s.

SN SW

Society of Aotomotive Engineers (USA) Second Item number Width across flats

t THB TL tm typ.

Metric ton (= 1000 kg) Technical Manual Backhoe dipper (attachment) Tons by meters (obsolescent unit of swing torque) Typical

U/min UW

Revolutions per minute Undercarriage

V VDMA

Volt (unit of electric voltage) Association of German Machinery and Systems Manufacturers

W

Watt (unit of electric power)

°C °F °kW

Degrees Celsius (temperature) Degrees Fahrenheit (temperature) Degrees crank angle

> <

greater than less than

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OPERATING INSTRUCTIONS RH 70 Annex TECHNICAL DATA

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OPERATING INSTRUCTIONS RH 70 Annex NOTES .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. .............................................................................................................................................................................. ..............................................................................................................................................................................

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OPERATING INSTRUCTIONS RH 70 Index 6 INDEX Operating instructions

Part 1 INTRODUCTION FUNDAMENTAL SAFETY INSTRUCTIONS Part 2 OPERATION

Target group

Operating personnel + Inspection and servicing personnel + Repair personnel Operating personnel The operating personnel must have knowhow relevant to the operation and the application of this or comparable machines.

Part 3 INSPECTION AND SERVICING Part 4 REPAIR WORK

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

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

Part 5 ANNEX

Part 6 INDEX

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Operating personnel + Inspection and servicing personnel + Repair personnel Operating personnel + Inspection and servicing personnel + Repair personnel

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OPERATING INSTRUCTIONS RH 70 Index

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OPERATING INSTRUCTIONS RH 70 Index

A ABBREVIATIONS ................................................... 5-11 Adjusting the control consoles ................................ 2-17 After daily operation ................................................ 2-11 Air-intake lines ........................................................ 3-46

Driver's seat ............................................................ 2-16 Driver's seat (optional) ............................................ 2-18 DRIVING ................................................................. 2-55 Dust collection......................................................... 3-46

E

Battery..................................................................... 3-55 Battery storage........................................................ 3-87 Bearing races.......................................................... 3-83 Before starting work .................................................. 2-8 Board-Control-System (BCS) (optional).................... 2-8 Breather filter .......................................................... 3-64 Bypass valves (cooling circuit)................................ 3-63 Bypass valves (working circuit) ............................... 3-62

Electrical system ....................................................... 2-9 ELECTRICAL SYSTEM....................................3-54, 4-7 Electrical system - Safety instructions..................... 3-54 Electronic excavator control .................................... 3-69 Emergency lowering of working equipment............. 2-11 EMERGENCY STOP pushbutton ............................ 2-14 EMERGENCY STOP, reset the function ................. 2-14 ENGINE................................................................... 3-38 ENGINE..................................................................... 4-6 Engine - Safety instructions .................................... 3-38 Entering and leaving the machine - Safety instructions ............................................................................ 2-12 Environmentally compatible hydraulic fluid ............. 3-10 Environmentally compatible hydraulic fluid - operating instructions .......................................................... 3-10 Environmentally compatible hydraulic fluid - Sampling311 Environmentally compatible hydraulic fluid, conversion ............................................................................ 3-10 Environment-friendly lubricants and gearbox oils.... 3-12 Excavator layout........................................................ 2-7

C

F

CENTRAL LUBRICATING ...................................... 3-85 Central lubricating system – Fault table.................... 5-8 Change cooling liquid.............................................. 3-42 Change of engine oil ............................................... 3-13 Changing the engine oil .......................................... 3-39 Changing the gearbox oil ............................... 3-74, 3-76 Changing the hydraulic oil....................................... 3-67 Changing the hydraulic oil return-flow (hydraulic oil reservoir .............................................................. 3-61 Checking the engine oil level / Topping up ............. 3-38 Checking the gas charging pressure in the pressure accumulator ........................................................ 3-82 Checking the gearbox oil level / Topping up with oil3-73 Checking the hydraulic oil level............................... 3-60 Cleaning jobs .......................................................... 3-13 Cleaning the fuel tanks ........................................... 3-50 Cleaning the hydraulic oil cooler ............................. 3-71 Combustion engine - Fault table ............................... 5-4 Components............................................................ 3-13 COOLING SYSTEM ................................................ 3-41 Corrosion protection for pins and bearings (bushings and hubs) ............................................................ 2-15 CRAWLER TRACKS............................................... 3-79

FAULT TABLES ........................................................ 5-4 Filling quantities - Grease ..............................3-25, 3-27 Filling quantities - oil................................................ 3-30 Filling quantities - other ........................................... 3-30 Fire and explosion hazard ................................1-12, 2-5 Fire and Explosion Hazard .................................3-9, 4-5 Fire-extinguisher...................................................... 2-19 FUEL SYSTEM........................................................ 3-47 Fuel system - Safety instructions ............................ 3-47

Air-intake system .............................................. 3-13 AIR-INTAKE SYSTEM ............................................ 3-44 Alternator - Instructions........................................... 3-54 ASSEMBLING WORKING EQUIPMENT - SAFETY INSTRUCTIONS ................................................. 2-12 Assisted starting (with jumper cables) ...................... 4-7 Assisted starting (with jumper cables) – Safety instructions............................................................ 4-7 Automatic engine speed reduction............................ 2-9

B

D Demand control / Zero-flow regulation ...................... 2-9 Depressurizing the hydraulic system ...................... 3-59 DESCRIPTION OF THE EXCAVATOR..................... 2-6 Design and function ................................................ 3-85 Designated use ......................................................... 1-6 Drive.......................................................................... 2-8 DRIVER'S CAB ....................................................... 2-12

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G Gas, dust, steam and smoke .................................. 1-11 Gearbox - Checking the oil level / Topping up with oil376, 3-78 Gearbox oils ............................................................ 3-12 Gearbox venting ...................................................... 3-77 Greases for bearings and swing rings..................... 3-36

H Heating (optional)..................................2-52, 2-53, 2-54 Heating and air conditioning.................................... 3-86 High-pressure filter for working hydraulics .............. 3-65 High-pressure filters for the servo circuit and the feeding circuit of the swing pump ........................ 3-66 Hose line for oil and cooling liquid changes ............ 3-37 HYDRAULIC CIRCUIT DIAGRAM............................. 5-9 Hydraulic equipment ............................................... 1-11 Hydraulic system ....................................................... 2-8 HYDRAULIC SYSTEM ............................................ 3-59 HYDRAULIC SYSTEM .............................................. 4-9

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OPERATING INSTRUCTIONS RH 70 Index Hydraulic system - Safety instructions .................... 3-59

I Inspection and servicing - Safety instructions........... 3-3 Inspection and Servicing plans - Instructions.......... 3-13 INSPECTION PLAN - OIL ....................................... 3-28 Inspection plan – Oil (Legend) ................................ 3-29 Instructions on troubleshooting ................................. 5-3 Intervals .................................................................. 3-13

L Ladder (optional)..................................................... 2-13 Layout of the fault table............................................. 5-3 LIFTING OPERATIONS .......................................... 2-16 Load-hooks on backhoe buckets). .......................... 2-17 Locking the superstructure........................................ 2-4 LUBRICANTS ......................................................... 3-31 Lubricants for bearings ........................................... 3-12 LUBRICATING CHART – GREASE (LOADING BUCKET) ............................................................ 3-24 Lubricating chart – Grease / Backhoe bucket (legende) ............................................................................ 3-27 Lubricating chart – Grease / BACKHOE bucket (legende)............................................................. 3-26 Lubricating chart – Grease / Loading bucket (legende) ............................................................................ 3-25

M Main filter elements ................................................. 3-44 Measures .................................................................. 5-3 MONITORING, WARNING AND CONTROL ELEMENTS ......................................................... 2-20

N Noise....................................................................... 1-11 NOTES.........................................1-13, 2-21, 3-89, 4-13 NOTES................................................................ 5-15

O Oil, grease and other chemical substances ............ 1-11 Oils / Greases ......................................................... 3-13 Oils for combustion engine ..................................... 3-31 Oils for hydraulic system (selection) ....................... 3-32 Oils for pump gearbox............................................. 3-33 Oils for swing gearbox............................................. 3-34 Oils for travel gearbox ............................................. 3-35 Operating hours meter ............................................ 2-14 Operation - Safety instructions.................................. 2-3 Organizational measures .......................................... 1-7 OTHER MAINTENANCE......................................... 3-86 Output pinion........................................................... 3-77

P Plan A - E................................................................ 3-19 Plan N ..................................................................... 3-16 Plan T and W .......................................................... 3-17 Plan V ..................................................................... 3-14 Possible causes ........................................................ 5-3 Preface...................................................................... 1-3

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Pressure accumulator ............................................. 3-72 PRESSURE ACCUMULATORS SAFETY INSTRUCTIONS.................................................. 4-10 Pressure-accumulator inspection regulations ......... 3-82 Primary fuel filter, drain off water............................. 3-47 Primary fuel filter, replace ....................................... 3-48 Pump Managing System (PMS) ................................ 2-8 PUMP TRANSFER GEARBOX ............................... 3-73 Putting the excavator out of operation..................... 3-87 PUTTING THE EXCAVATOR OUT OF OPERATION AND RECOMMISSIONING ................................. 3-87 PUTTING THE MACHINE INTO OPERATION........ 2-47

R Radiators and cooling liquid .................................... 3-41 Recommissioning.................................................... 3-87 Refuelling ................................................................ 2-47 Refuelling station (optional)..................................... 3-51 Repair........................................................................ 4-9 Repair work - Safety instructions............................... 4-3 Replacing the engine oil filter .................................. 3-40

S Safety filter element ................................................ 3-46 Safety instructions................................................... 2-16 SAFETY INSTRUCTIONS................................2-55, 2-6 Safety instructions governing specific operational phases................................................................... 1-8 Secondary fuel filter, replace................................... 3-49 Section ...................................................................... 5-3 Securing the machine ............................................. 2-14 Selection and qualification of personnel; basic responsibilities....................................................... 1-8 SERVICING WORK ................................................ 3-37 Sign ......................................................................... 2-11 Special work in conjunction with utilization of the machine and maintenance and repairs as well as troubleshooting during work; disposal of parts and consumables ......................................................... 1-9 Starting and stopping the engines........................... 2-50 Starting the engine with jumper cables (external batteries ................................................................ 4-7 Stored Program Control (SPC).................................. 2-8 Superstructure........................................................... 2-8 SWING GEARBOX ................................................. 3-76 Swing mechnism – Fault table .................................. 5-7 SWING RING .......................................................... 3-83 Swing ring - Instructions .......................................... 3-83 Swinging and braking the superstructure .................. 2-8 Switchgear cabinet .................................................. 3-57 Switching the electrical system on and off .............. 2-49

T TECHNICAL DATA.................................................. 5-13 Topping up cooling liquid ........................................ 3-42 Topping up with hydraulic oil ................................... 3-60 Track drive – Fault table............................................ 5-6 Track parking brake .................................................. 2-4 Track rollers, support rollers, track pads ................. 3-79 Track tensioner ....................................................... 3-81 Transport - Safety instructions .................................. 2-5 Transporting and recommissioning ......................... 1-11 Transporting the machine ......................................... 2-5 TRAVEL GEARBOX................................................ 3-78

BA RH70(3 720 820.01)-EN

OPERATING INSTRUCTIONS RH 70 Index Travel gearbox - Changing the oil ........................... 3-78 TRAVELLING.......................................................... 2-56 TROUBLESHOOTING .............................................. 5-3

U Undercarriage ........................................................... 2-8

V Venting the fuel tank ............................................... 3-50 Venting the hydraulic system .................................. 3-70

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W Warning of special dangers .................................... 1-10 Warnings and symbols.............................................. 1-5 Warranty.................................................................... 1-4 Water trap (option) .................................................. 3-52 Welding operations - Safety instructions................. 4-11 Windscreen washer................................................. 2-15 Working................................................................... 2-10 Working hydraulics – Fault table............................... 5-5 Working operation..................................................... 2-6

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