Case 3550 Crawler Dozer Operator's Manual 84415679 - PDF DOWNLOAD

3550

3550 Crawler Dozer Crawler Dozer

Operator’s Manual Print No. 84415679

1st edition English 02/11

from serial no: FNH03550NBHC05001

3550 Crawler dozer

Operator's Manual

Print No. 84415679 (II - 2011)

WARNING STUDY THIS MANUAL BEFORE STARTING, OPERATING, MAINTAINING, FUELLING OR SERVICING THE MACHINE.

This alert symbol signals important messages involving your safety. It means: WARNING! BE ALERT! IT INVOLVES YOUR SAFETY.

Read and heed carefully all safety instructions identified by the key words WARNING and DANGER.

The safety plates applied to this machine are colour coded yellow with black edges and wording for the points to which ATTENTION must be paid and red coloured with white edges and wording for DANGER points.

WARNING STUDY CAREFULLY THIS MANUAL BEFORE STARTING, OPERATING, MAINTAINING, FUELLING OR SERVICING THE MACHINE.

IMPORTANT NOTICES This machine has been designed and manufactured for digging and moving loose materials only. Any other application shall be considered contrary to the use intended by the Factory who, consequently, shall not be considered responsible for any damage to property or the machine itself, nor for personal injuries which could eventually occur. Also, it must be considered that by taking the risk for an improper use, you become responsible of the consequences.

This machine must be operated, serviced or repaired exclusively by personnel previously trained on the equipment at work and the relevant safety rules, besides being authorised to operate the machine itself.

The User is always obliged to observe the general rules for safety and the prevention of injuries, as well as the rules for on-the-road travelling.

Any arbitrary modification implemented on this machine makes void any responsibility of the Factory deriving from damages or injuries.

Neither the Factory nor any Organisations in its Distribution Network, including but not limited to national, regional or local distributors, are responsible for any liability arising from any damage resulting from defects caused by parts and/or components not approved by the Factory for use in maintaining and/or repairing products manufactured or merchandised by the Factory.

In any case, no warranty of any kind is made or shall be imposed with respect to products manufactured or merchandised by the Factory, when failures are caused by the use of parts and/or components not approved by the Factory.

SERIAL NUMBER

TYPE OF ENGINE

ENGINE SERIAL NUMBER

TABLE OF CONTENTS SUBJECT

PAGE

SAFETY RULES ......................................................................................................................................... I-VII Foreword ...................................................................................................................................................... VIII Identification data ............................................................................................................................................ 2 Quantitative sides of comfort ........................................................................................................................... 3 GENERAL SPECIFICATIONS ........................................................................................................................ 4 Main dimensions ............................................................................................................................................. 7 Stability ............................................................................................................................................................ 8 List and location of safety decals .................................................................................................................... 9 Preliminary instructions and break-in period .................................................................................................. 18 OPERATION RULES .................................................................................................................................... 19 Controls and instruments .............................................................................................................................. 21 OPERATING INSTRUCTIONS .....................................................................................................................

General information .......................................................................................................................................

Prior to starting (daily) ...................................................................................................................................

Engine starting ..............................................................................................................................................

Stopping the machine ....................................................................................................................................

Stopping the engine ......................................................................................................................................

Operator's seat adjustment ...........................................................................................................................

Fuel reservoir ................................................................................................................................................

Blade adjustment ...........................................................................................................................................

Removal of cab .............................................................................................................................................

Reinstallation of cab ......................................................................................................................................

Brakes disengagement ..................................................................................................................................

Towing the mechine ......................................................................................................................................

Moving the machine with outside means .......................................................................................................

Instructions for lowering the equipment to the ground with engine inoperative .............................................

Transporting the machine ..............................................................................................................................

Long storage of the machine .........................................................................................................................

Cold climate precautions ...............................................................................................................................

Starting the machine at low temperatures .....................................................................................................

Starting the machine with booster batteries ..................................................................................................

34 34 34 34 36 37 37 38 38 39 40 41 43 44 45 45 46 46 47 47

MACHINE OPERATION ............................................................................................................................... 48 CAB ............................................................................................................................................................... 57 MAINTENANCE ............................................................................................................................................

Maintenance operations ................................................................................................................................

Walk around inspection (to be performed daily) ............................................................................................

List of on-board tools .....................................................................................................................................

List of programmed maintenance ..................................................................................................................

Every 10 hors work .......................................................................................................................................

Every 50 hours work ......................................................................................................................................

Every 250 hours work ....................................................................................................................................

Every 500 hours work ....................................................................................................................................

Every 1000 hours work ..................................................................................................................................

Every 2000 hours work ..................................................................................................................................

When Required .............................................................................................................................................

Operations to be performed, when required ..................................................................................................

61 62 62 63 64 65 66 68 71 73 79 80 81

ELECTRICAL SYSTEM ................................................................................................................................ 82 Electrical diagram of protection tree .............................................................................................................. 83 TABLE OF FLUID CAPACITIES ................................................................................................................... 84

SAFETY RULES GENERALITIES

Be sure exposed personnel in the area of operation are clear of the machine before moving it or its attachments.

WALK COMPLETELY AROUND the machine before mounting. Sound horn.

Study carefully this Manual before starting, operating, maintaining, fuelling or servicing the machine.

Read and heed all safety rules before any intervention.

Before starting machine, check, adjust and lock the operator's seat for maximum comfort and control of the machine.

Do not allow unauthorised personnel to operate service or maintain this machine.

Do not operate the machine if not feeling in good health conditions.

Fasten your seat belt (when provided).

Do not wear rings, wrist watches, jewellery, loose or hanging apparels, such as ties, torn clothing, scarves, unbuttoned or unzipped jackets that can catch on moving parts. Wear proper safety equipment as recommended for the job. Examples: hard hat, heavy gloves, ear protection, safety glasses or goggles, reflector vests, respirator.

Consult your employer for specific safety equipment requirements.

Obey all flag signals and signs.

Due to the presence on the machine of flammable fluids, never check or fill fuel reservoirs or batteries near open flames, smoking materials or sparks.

REMEMBER THAT STARTING FLUID IS FLAMMABLE. Follow strictly the recommendations printed on containers and in the Operation and Maintenance Manual.

Keep operator's compartment, stepping points, grab-rails and handles clear of foreign objects, oil, grease, mud or snow accumulation to minimise the danger of slipping or stumbling. Clean mud or grease from shoes before attempting to mount or operate the machine.

DO NOT PUNCTURE OR BURN CONTAINERS. Containers must be stored in fresh, well ventilated places, out of reach of unauthorised persons. Follow strictly the instructions provided by the Manufacturer.

Do not jump on or off the machine. Keep two hands and one foot, or two feet and one hand in contact with step grab rails and handles at all times.

Never use these products near open flames, smoking materials or sparks

Do not use controls or hoses as hand holds when climbing on or off machine. Hoses and controls are movable and do not provide a solid support. Also, controls may be inadvertently moved causing accidental machine or equipment movement.

OPERATION Do not run the engine of this machine in closed areas without proper ventilation to remove deadly exhaust gases.

Never attempt to operate the machine or its tools from any position other than seated in the operator's seat.

Roll Over Protective Structures are required on loaders, dozers, graders, excavators. NEVER OPERATE machines without ROPS.

Keep head, body, limbs, hands and feet inside operator's compartment at all times, to reduce exposure to hazards outside the operator's compartment.

Make sure the Operator's compartment is free of foreign objects, especially if not firmly secured. Never use the machine to transport objects, unless proper securing points are provided.

Be careful of slippery conditions on stepping points, hand rails, and on the ground. Wear safety boots or shoes that have a high slip resistant sole material.

Check monitoring instruments at start-up and frequently during operations. in case the brake pressure gauge shows a pressure lower than the minimum operating pressure, stop immediately the machine.

Do not leave the machine until it is completely stopped.

Check the seat safety belt at least twice a year. If there are signs of wear or fraying or other signs of weakness that could lead to failure, replace it.

DO NOT CARRY RIDERS ON MACHINE. Study and familiarise with escape routes alternate to normal exit routes.

STARTING

Seat belts are required by current regulations to be provided with Roll Over Protection Structures or cabs.

Keep safety belts fastened around you during operation.

NEVER START NOR OPERATE AN UNSAFE MACHINE. Before operating a machine, always ensure that any unsafe condition has been satisfactorily remedied.

For your personal protection, do not climb on or off machine while machine is in motion.

Check brakes, steering and attachment controls before moving. Advise the proper maintenance authority of any malfunctioning part or system.

Make sure that exposed persons in the area of operation are clear of the machine, before starting the engine and operating the equipment. Sound horn. Obey all indications provided by flags and signals.

Be sure all protective guards or panels are in place, and all safety devices provided are in place and in good operating conditions.

NEVER COAST the machine down grades and slopes with the transmission in neutral or neutralised.

I

SAFETY RULES Operators must know thoroughly the performances of the machine they are operating. When working on slopes or near sudden level drops of the terrain, avoid areas where ground is loose or soft since rolling-over or loss of control of machine could result.

Choose and shift into the most appropriate gear to keep the speed required, thus preventing any loss of control.

Do not operate machinery in a condition of extreme fatigue or illness. Be especially careful towards the end of working shift.

Where noise exposure exceeds 90 dBA for 8 hours, wear approved ear protection.

Do not operate machine with brakes out of adjustment.

Operate the machine at speeds slow enough to ensure complete control at all times.

When counterweights are provided, do not work machine if they have been removed.

Travel slowly over rough terrain, on slopes or near dropoffs, in congested areas or on ice or slippery surfaces.

Overtaking manoeuvres must be performed only when absolutely necessary and unavoidable. Beware of possible uneven terrains, poor visibility conditions, the presence of other machinery or persons out of sight.

When backing, always look to where the machine is to be moved. Be alert to the position of exposed personnel. DO NOT OPERATE if exposed personnel enter the immediate work area. STOP THE MACHINE.

Operate the machine at a speed adequate to the working conditions in the site and slow enough to ensure complete control at all times.

Maintain a safe distance from other machines. Provide sufficient clearance for ground and visibility conditions.

Yield right-of-way to loaded machines.

Never use the machine as a work platform or scaffolding, nor other inappropriate operations (i.e. pushing railway cars, trucks or other machines).

Maintain clear vision of areas of travel or work. Keep cab windows clean and repaired.

Be alert of people in the operating area of the machine.

When machines are operating in tandem, the pusher (rear) must be equipped with the appropriate deflectors to protect the unit in front from the air stream coming from the radiator.

When operating a machine, know in advance what clearances will be encountered, overhead doors, cables, pipes, bearing load limitations of ground, bridges, floors or ramps.

When pulling or towing through a cable or chain, do not start suddenly at full throttle; take-up slack carefully.

When roading, find-out what conditions are likely to be encountered, clearances, traffic congestion, type of road surfacing, etc. Beware of fog, smoke or dust elements that obscure visibility.

Inspect carefully for flaws or troubles before using.

Avoid kinking chains or cables. Do not pull through a kinked chain or cable to the high stresses and possibility of failure of the kinked area. Always wear heavy gloves when handling chains or cables.

When crossing gullies or ditches, move at an angle with reduced speed after ensuring ground conditions will permit a safe traverse.

Explore the working area to identify potential risks such as: slopes, overhangs, pits, demolition rubble, fires, ravines, ditches, soft terrain, heavy traffic, crowded parking areas, closed ambients. In such conditions, proceed with extreme care.

Be sure chains and cables are anchored and the anchor points are strong enough to handle the expected load.

Keep exposed personnel clear of anchor points and cables or chains.

DO NOT PULL UNLESS OPERATOR's COMPARTMENT OF MACHINES INVOLVED ARE PROPERLY GUARDED AGAINST POTENTIAL CABLE OR CHAIN BACKLASH.

Whenever possible, avoid going over obstacles such as rough terrain, rocks, logs highly irregular ground, steps, ditches, railroad tracks. When obstructions must be crossed, do so with extreme care at an angle, if possible.

Reduce speed, shift-down. Ease up to the break over point, pass the balance point slowly on the obstruction and ease down on the other side.

Be alert to soft ground conditions close to newly constructed walls. The fill material and weight of the machine may cause the wall collapse under the machine.

In darkness, check area of operation carefully before moving in with machine. Use all lights provided. Do not move into area of restricted visibility.

In steep down-hill operation, do not allow engine to overspeed. Select proper gear before starting down grade.

If engine has a tendency to stall for any reason under load or idle, report this for adjustment to proper maintenance authority immediately. Do not continue to operate machine, until condition has been corrected.

Avoid side hill travel, whenever possible. Drive up and down the slope. Should the machine slipping sideways, turn it immediately downhill.

On machines supplied with suction radiator fans, be sure to periodically check engine exhaust parts for leaks, as exhaust fumes are dangerous to the operator.

The grade of slope you should attempt will be limited by factors such as condition of the ground, load being handled, type of machine, speed of machine and visibility.

In case of closed type cabs, always keep an opening with the outside, to ensure a constant air circulation.

There is no substitute for good judgement when working on slopes.

II

SAFETY RULES Also provide advance warning signals in the traffic lane of approaching traffic.

Avoid operating equipment too close to an overhang or high wall, either above or below the machine. Be on the look-out for caving edges, falling objects and slides.

Beware of concealment by brush and undergrowth of these danger.

Keep head, body, limbs, feet, fingers or hands away from bucket, blade or ripper when in raised position.

Always disconnect the master switch before any intervention (i.e. cleaning, repairing, maintaining, refuelling etc.). Do the same when parking for prolonged periods of time to avoid accidental or unauthorised starting.

When pushing-over trees, the machine must be equipped with proper overhead guarding. Never allow a machine to climb up on the root structure particularly while the tree is being felled. Use extreme care when pushing over any tree with dead branches.

Never lower attachments or tools other than seated in operator's seat. Sound horn. Make sure area near the attachment is clear. Lower the attachment slowly. DO NOT USE FLOAT POSITION of hydraulic system.

When pushing trees with dead limbs, proceed with extreme care. Avoid brush piles, logs or rocks.

NEVER DRIVE OVER THEM or other surface irregularities that brake traction with the ground, especially when on slopes or near drop-offs.

Place master switch in OFF, securely block the machine and lock it every time you leave it unattended. Return keys to authorised security. Heed all shut-down operations of the Operation and Maintenance Instruction Manual are followed.

Be alert to avoid changes in traction conditions that could cause loss of control. DO NOT DRIVE on ice or frozen ground conditions when working the machine on steep slopes or near drop-offs.

Working in virgin and rough terrains is characterised by the presence of all the perils and risks listed above. In these conditions, it is emphasised the danger represented by large tree limbs (possibly falling on the machine), large roots (acting as a leverage under the machine when uprooted causing the roll-over of the unit) etc...

MAINTENANCE GENERALITIES Before operating or performing any intervention on the machine: - read carefully all the rules contained by this Manual,

STOPPING

- read and obey all safety related plates and instructions located on the machine.

When the machine is stopped for whatever reason, follow the instructions of chapters "Stopping the machine" and "Stopping the engine" of the Operation and Maintenance Instruction Manual.

Do not allow unauthorised personnel to perform any maintenance operation. Do not perform maintenance operation without prior authorisation. Follow all recommended maintenance and service procedures.

Always remember to position the transmission drive control in neutral and engage the control lock to secure the machine.

Keep operator's compartment free of all loose objects that are not properly secured.

Do not wear rings, wrist watches, jewellery, loose or hanging apparels, such as ties, torn clothing, scarves, unbuttoned or unzipped jackets that can catch on moving parts. Wear proper safety equipment as recommended for the job. Examples: hard hat, heavy gloves, ear protection, safety glasses or goggles, reflector vests, respirator.

Consult your employer for specific safety equipment requirements.

The parking brake is automatically set.

NEVER LEAVE THE MACHINE UNATTENDED with the engine running.

Always, before leaving the operator's seat and after making sure all people are clear of the machine, slowly lower the attachments or tools flat to the ground in a positive ground support position.

Do not use controls or hoses as hand holds when climbing on or off machine. Hoses and controls are movable and do not provide a solid support. Also, controls may be inadvertently moved causing accidental machine or equipment movement.

Return the controls to rest position. Place the gearshift lever in neutral. Disconnect the master switch and extract the key.

See the relevant chapter in this Manual.

Park in a non- operating and no-traffic area or as instructed. Park on firm level ground if possible. Where not possible, position machine at a right angle to the slope, making sure there is no danger of uncontrolled sliding movements.

Do not jump on or off the machine. Keep two hands and one foot, or two feet and one hand in contact with step grab rails and handles at all times.

Do not perform any service operation on the machine with a person seated in the operator's compartment, unless he is an authorised operator co-operating in the operation to be performed.

If parking in traffic lanes cannot be avoided, provide appropriate flags, barriers, flares and signals as required.

III

SAFETY RULES To move a disabled machine, use a trailer or a low-boy, if available. In case towing is needed , use all necessary signals required by local and national regulations, and follow the directions provided in this Manual.

Keep operator's compartment, stepping points, grab-rails and handles clear of foreign objects, oil, grease, mud or snow accumulation to minimise the danger of slipping or stumbling. Clean mud or grease from shoes before attempting to mount or operate the machine.

To load/unload a machine from transporter, choose a level surface ensuring firm support to the wheels of truck or trailer. Use strong access ramps, with adequate height and angle. Keep surface free of mud, oil or slippery materials.

Keep shoes free of mud or grease before climbing or driving the machine.

Never attempt to operate the machine or its tools from any position other than seated in the operator's seat.

Anchor the machine securely to the bed of truck or trailer and block wheels or tracks with appropriate wedges.

When maintenance operations require moving hydraulically operated attachments by means of machine's hydraulic system remember that all manoeuvres must be made only when seated in the operator's seat. Before starting machine or moving attachment or tools, set brakes , sound horn and call for an all clear. Raise attachment slowly.

Never align holes with fingers or hands; always use appropriate aligning tools.

Eliminate all sharp edges and burrs from re-worked parts.

Use only approved grounded auxiliary power sources for heaters, chargers, pumps and similar equipment to reduce the hazards of electrical shocks.

Always block booms or parts of the machine which must be raised to perform interventions under them with external devices. Do not allow persons to move into the vicinities nor standing under equipment not being blocked.

Unless you are totally sure about your safety, avoid staying under raised equipment, even in case it is blocked.

Lift and handle heavy parts with a lifting device of proper capacity. Be sure parts are supported by proper slings and hooks. Use lifting eyes if provided. Watch-out for people in the vicinity.

Do not place the body, limbs or fingers into sharp articulation uncontrolled openings of the machine and without proper protections, unless they are blocked in a safe manner.

Never pour gasoline or diesel fuel into open, wide and low containers. Never use gasoline, solvent or other flammable fluid to clean parts. Use exclusively qualified, non-flammable, non-toxic commercial solvents.

Never perform interventions with engine running, except as called for in a Manual. Do not wear loose clothing or jewellery near moving parts.

When using compressed air for cleaning parts, use safety glasses with side shields or goggles. Limit pressure to 2 bar, in accordance with local and national regulations.

When servicing or maintenance require access to areas that cannot be reached from the ground, use a ladder or step platform that meet local and national regulations, to reach the service point. If such ladder or platform are not available, use the machine hand holds and steps as provided. Perform all service or maintenance carefully.

Do not run the engine in closed areas without proper ventilation to remove deadly exhaust fumes.

Do not smoke or permit any open flames or spark near when re-fuelling or handling flammable materials.

Do not use an open flame as a light source to look for leaks or for inspection anywhere on the machine.

Shop and/or field service platforms or ladders must be constructed and maintained in accordance with local and national regulations.

Make sure that all mechanic's tools are in good conditions.

NEVER USE tools with mushroomed heads or frayed.

Always wear eye protections.

Disconnect batteries and tag all controls according to current regulations to warn that work is in progress. Block machine and all attachments that must be raised according to current regulations.

Move with extreme care when working under the machine, its attachments and or on or near them. Always wear protective safety equipment as required, such as hard hat, goggles, safety shoes, ear plugs.

Due to the presence of flammable fluids, never check or fill fuel tanks, batteries, nor use starting fluid near lighted smoking materials or open flames.

When performing operations requiring running of the engine, have a qualified operator in the operator's seat at all times with the mechanic on sight. Place the transmission in neutral and set the brakes and safety lock.

BRAKES ARE INOPERATIVE when manually released for servicing. Provisions must be made to maintain control of the machine by blocking or other means.

KEEP HANDS AND CLOTHING AWAY FROM MOVING PARTS.

The fuel filling nose must be kept constantly inside the filling neck. Keep this contact from the beginning to the end of the fuelling operation to avoid the possibility that sparks due to static electricity are generated.

For field service, move machine to level ground, if possible, and block it. If work on an incline is absolutely necessary, first block machine and its attachments securely, than move it to level ground as soon as possible.

Use only designated towing or attaching points. Use care in making attachments. Make sure pins and/or locks are secure before pulling. Stay clear of drawbars, cables or chains under load.

Do not trust worn and /or kinked chains and cables: do not use them for lifting or pulling operations. To handle them, always use heavy gloves.

IV

SAFETY RULES Be sure chains and cables are anchored and the anchor points are strong enough to handle the expected load.

Keep exposed personnel clear of anchor points and cables or chains.

Compressed air systems can have water deposits created by moisture condensation due to changes of atmospheric conditions. If required, discharge deposits, as instructed.

No bystanders are allowed near the hooking points, chains or cables.

STARTING

DO NOT PULL UNLESS OPERATOR'S COMPARTMENT OF MACHINES INVOLVED ARE PROPERLY GUARDED AGAINST POTENTIAL CABLE OR CHAIN BACKLASH.

Do not run the engine in closed areas without proper ventilation to remove deadly exhaust fumes.

Do not place head, body, limbs, feet, hands or fingers, near rotating fans or belts. Be especially alert near pusher fans.

Keep the area where maintenance operations are performed CLEAN and DRY. Eliminate immediately all water and oil spillages.

STARTING FLUID IS HIGHLY FLAMMABLE. Follow strictly the recommendations printed on containers and in the Operation and Maintenance Manual. Containers must be stored in fresh, well ventilated places, out of reach of unauthorised persons. DO NOT PUNCTURE OR BURN CONTAINERS.

Do not pile oily or greasy rags; they represent a fire hazard.

Store in closed metal container.

Before starting machine, check, adjust and lock the operator's seat for maximum comfort and control of the machine. Be sure exposed personnel in the area of operation are clear of the machine before moving it or its attachments. Sound horn.

ENGINE

Rust inhibitors are volatile and flammable Use only in well ventilated areas. Keep open flames away - DO NOT SMOKE - Store containers in a cool well ventilated place, secure against unauthorised personnel.

Loosen the radiator cap very slowly, to release pressure from the system, before removing it. All coolant level topups must be performed with engine OFF.

Do not carry loose objects in pockets that might fall unnoticed into open compartments.

Avoid that flammable materials touch exhaust parts.

Should this be possible, provide the necessary protections.

Wear proper protective equipment such as safety goggles or safety glasses with side shields, hard hat, safety shoes, heavy gloves when metal or other particles are apt to fly or fall.

Do not run engine when refuelling and use care if the engine is hot due to the increased possibility of a fire if fuel is spilled.

Wear welders protective equipment such as dark safety glasses, helmets, protective clothing, gloves and safety shoes, when welding or burning. Wear dark safety glasses near welding zones. DO NOT LOOK AT ARC WITHOUT PROPER EYE PROTECTION.

Never attempt to check or adjust fan belts when engine is running.

Know your jacking equipment and its capacity. Be sure the jacking point used on the machine is appropriate for the load to be applied. Be sure the support of the jack at the machine and under jack is appropriate and stable.

Do not lubricate the machine with engine running.

Do not adjust engine fuel pump when machine is moving.

Do not run the engine with air intakes, door or protections open.

The load lifted by jacks is always dangerous: it is necessary to transfer loads to appropriate blocking as a safety measure, before proceeding with service or maintenance work, according to local or national regulations.

ELECTRICAL SYSTEM Always disconnect batteries prior to any intervention on machine or electrical system (cleaning, repair, maintenance).

Steel cables are frayed after prolonged use; always wear appropriate protections (heavy gloves, goggles etc.).

Should booster batteries be used, remember to connect both ends of the booster cables in the proper manner (+) with (+) and (-) with (-). Avoid short-circuits of the terminals. Follow thoroughly the instructions of this Manual.

Handle all parts carefully. Keep hands and fingers away from structures, gears or moving parts. Use and wear always the appropriate protections

V

SAFETY RULES Before any intervention, make sure that the main switch is OFF.

EQUIPMENT Keep head, body, limbs, feet, fingers or hands away from bucket, blade or ripper when in raised position.

BATTERY GAS IS HIGHLY FLAMMABLE. Leave battery box open to improve ventilation when recharging batteries. Never check charge by placing metal objects across the posts. Keep sparks or open flames away from batteries. Do not smoke near battery to guard against the possibility of causing an explosion.

Prior to any intervention, install all safety devices according to current rules and regulations.

In case equipment on the machine must be operated by hydraulic systems, remember to proceed only after seating in the operator's compartment. Make sure that there are no persons in the operating area of the machine.

Alert people before operating using the horn and by voice.

Move the equipment very carefully.

Before any intervention, make sure that there are no fuel or electrolyte leakages; eliminate them before proceeding with further work. When recharging batteries in closed ambients, make sure that there is appropriate ventilation to prevent possible accidental explosions due to the accumulation of gases generated during the recharge.

Do not use machine to transport loose objects, unless proper devices for this purpose are provided.

Clutches and brakes of this machine and eventual auxiliary equipment and attachments (such as operating cylinder or winches control valves) must always be properly adjusted in accordance with the instructions provided by the Manuals of the Manufacturer.

HYDRAULIC SYSTEM Fluid escaping under pressure from a very small hole can be almost invisible and can have sufficient force to penetrate the skin. Use a piece of cardboard or wood to search for suspected pressure leaks. DO NOT USE HANDS. If injured by escaping fluid, see a doctor at once.

Serious infection or reaction can develop if proper medical treatment is not administered immediately.

Never perform adjustments with engine running, except when called for by the above instructions.

When changing work shift, check that wheel or rim securing screws and brackets are not loosen; if necessary, retighten to the prescribed torque.

Stop the engine and release all pressures in the system before removing panels, housings, plugs or covers.

In case pressures must be measured, use instruments of adequate capacity. Always follow the recommended procedures.

VI

SAFETY RULES

WARNING On machines having hydraulically, mechanically, and/or cable controlled equipment (such as shovels, loaders, dozers, excavators etc.) be certain the equipment is lowered to the ground before servicing, adjusting and/or repairing. If it is necessary to have the hydraulically, mechanically, and/or cable controlled equipment partially or fully raised to gain access to certain items, be sure the equipment is suitably supported by means other than the hydraulic lift cylinders, cable and/or mechanical devices used for controlling the equipment.

DECOMMISSIONING THE MACHINE WARNING

For the decommissioning of the machine, the availability of particular tooling (hoists, hydraulic presses. containers for liquids etc.) is required as well as specific tools listed in the Repair Manuals, available from licensed Dealers.

This has the purpose of avoiding that during disassembly operations, dangerous situations may arise both for the personnel involved and the environment.

• The decommissioning of the machine must be performed exclusively by personnel trained, qualified and authorised to perform such operation.

• Start the disassembly of hydraulic components only after the same, the hydraulic oil and lubricants have fully cooled-off and after all residual pressures have been released, as described by the Repair Instruction Manual.

In the machine are present: • Fluids under pressure (hydraulic system, cooling system etc.)

• Gases (air conditioning system and accumulator, if installed) • Mechanical devices mounted under pressure (track tensioner etc.)

• Acid (battery) • Heavy machine components (frames, blades, buckets etc.)

• Prior to proceeding with disassembly operations, comply with the GENERAL SAFETY RULES and drain each components of the machine filled with fluids, both in the reservoirs and the relevant systems.

DISPOSE OF WASTES IN AN APPROPRIATE MANNER • The improper disposal of waste is a menace for the environment. Potentially dangerous wastes used on machines include lubricants, fuel, filters and batteries.

- Use sealed containers when draining fluids; do not use containers for food or drinks which could be erroneously used for drinking.

- Do not spread waste on the ground, in drainages or water tables.

- Seek information about the appropriate manners of re-cycling or disposing of waste from local authorities or waste management centres, or from your Dealer.

VII

FOREWORD

This manual is designed to serve as a guidance for correct and safe operation of the machine and its systematic servicing.

The continued observance of the instructions provided herein will ensure best possible performance, operation economy and long life of the machine and will avoid the most common causes of accidents which may occur during work or maintenance operations.

As regards safety in particular, read carefully the general rules given on pages I through VII. The repair procedures for this machine are described in separate service publications obtainable from the Manufacturer's Organization.

Each machine is supplied with a copy of this manual. The descriptions and illustrations appearing in this manual are not binding; thus the Manufacturer reserves the right, while retaining the basic features of the model herein described and illustrated, to make at any time, and without necessarily bringing this manual up-to-date, any alteration to units, parts, accessories or their supply, deemed expedient for improvement or for any manufacturing or commercial reason. For any clarification, refer to your Dealer who will provide any information you may need.

The information provided by this Manual is valid at the time of publication. Since the Manufacturer is constantly improving its products, some information could result not up-to date. In the event discrepancies are experienced, consult the Sales and Service Organization.

VIII

3550

1

3550 Crawler dozer

D350M0001

The machine is shown with optional equipment.

WARNING The safety of the operator and bystanders depends upon its judgement capacity and prudence in operating the machine. Thus it is necessary to be knowledgeable of the position and function of all controls. Each machine has limitations: prior to operate it is necessary to familiarise with its capabilities and speed, braking, steering, stability and working features.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

2

3550

IDENTIFICATION DATA A. Engine data plate The data plate can be seen opening the left side panel of the engine compartment, containing the identification data and other important information on the engine.

1. Serial number of the engine (E.S.N. Engine Serial Number Cummins)

1

➤

D350M0003

Engine No. Family

Model Ref. No.

35048946

Advert. Power HP/KW

at

330/246 2100

RPM

1CEXLO661AAC FR

Fuel rate at Advert. Power

Date of Mfg.

Inj. Set IN/mm

11/01 QSM11-C S052008

Valve Lash Cold IN/mm

mm 3 stroke

155

IMPORTANT ENGINE INFORMATION : This engine conforms to EPA and California Tier 2 and EU 2001U.S. Stage II regulations for heavy

650 - 1000 NOx FEL PM FEL 661/10.8

Inj. Timing CPL

.025 LASH .025 / .356

Idle Speed RPM CID/L

Int.

KV 2828

.027/.686

Cu

mm

ins

Exh.

Cummins Engine Company, Inc. Assembled in the U.S.A.

4060493

duty nonroad compression ignition diesel cycle engines as applicable.

THIS ENGINE IS CERTIFIED TO OPERATE ON DIESEL FUEL. Warranty Start Date WARNING; Injury may result and warranty is voided if fuel rate, RPM, or altitudes exceed published maximum values for this model and application.

D350M0002

B. Machine identification plate The identification plate contains the main data of the machine and it is visible under the operator's seat.

3550-M001

C. Marking and serial number of frame The MARKING of the machine is seen on the left side of the transmission housing.

In the lower side it is readable: - manufacturer code (the first 3 digits) FNH; - the machine code 03550N; - the serial number (last 8 digits).

MODEL 3550 Power Steering

MARKING ✩ FNH03550NBHC05001 ✩ D350M0005

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

3550

3

Machine manufactured by: CNH Italia S.p.A., Via Plava, 80 10135 Torino - Italy in the LECCE Plant Address:

Zona Industriale Surbo 73100 LECCE (LE) Telephone: (0832) 6881 This machine complies with the EEC Directives relative to safety of machines (Directives 89/392, 91/368, 93/44 and 93/68)

QUANTITATIVE SIDES OF COMFORT Noise at the operator's seat

Noise outside the machine

Evaluated on identical machines, complying with the prescriptions of standard EEC 95/27 ISO 6396

Evaluated on identical machines, complying with the prescriptions of standard 2000/14/EC

- Standard machine (with cab)

- Machine with outside sound suppressing version LWA = 113 dB (A)

LpA = 83 dB (A)

- - Standard machine LWA = 118 dB (A)

SERVICE

SPARE PARTS

For the service operations not easily performed with the means available to the User. it is recommended that you contact the Sales Organization or the Service Centres, which have available skilled personnel, adequate tooling and genuine spare parts. The entire Organization is at the disposal of Customers to provide clarifications and recommendations or to intervene with its skilled personnel, whenever an irregular operation is experienced on your machine.

To ensure a perfect performance of the machine, you are reminded that parts must be replaced exclusively with genuine spares.

To order them it is necessary to specify: - type and serial number of the machine (plate B) (pag. 2); - type and serial number of the engine (plate C); - the part number of the part being ordered.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

4

3550

GENERAL SPECIFICATIONS ENGINE

Fuel system

The engine complies with the regulations relative to fume emissions "TIER2".

The fuel pump sucks the fuel from the tank. between the tank and the fuel pump, the fuel flows through two interchangeable cartridge fuel filters, one a water separator, the other filtering the impurities in the fuel.

Type ..................... CUMMINS QSM 11-330/365 HP Direct injection, turbocharged, after-cooled, 4-stroke diesel Bore ............................................................ 125 mm Stroke ......................................................... 147 mm Total displacement ........................................ 10.82 l

Air intake Dry air cleaner with replaceable paper cartridges, turbo charged by turbocharger type HOLSET HX55 TURBO equipped with WASTGATE valve and after cooler.

Compression ratio ....................................... 16.3 : 1 6 in-line cylinders, firing order ..................1-5-3-6-2-4 Max. net power at flywheel: - 221 kW at 2100 rpm - 253 kW at 1800 rpm Maximum torque (at 1400 rpm) ............ 167,4 daNm

Lubrication Forced lubrication by gear type pump.

Minimum allowable lubrication: - At low idle ..................................... 0.8 bar (12 Psi) - At nominal speed ........................ 2.04 bar (35 Psi) Quantity of oil in the sum .... 35 litres (9.2 U.S. Qts.)

Coolant system Water, circulated by centrifugal pump, integrally mounted. The coolant flows from the oil heat exchanger in the block, then passing to the cylinder head.

Radiator equipped with 8-blade blowing fan.

Water circulation from the engine to the radiator regulated by thermostat.

TRANSMISSION Hydraulic torque converter with maximum stall ratio 2.3 : 1.

"Power shift" transmission, with three forward and three reverse speeds, with electric FINGER TIP CONTROL. Neutral button cutting-off directly the speed engaged, shifting the transmission into neutral.

AUTO SHIFT function button.

Safety device lever that in "locked" position prevents the gear shifting of the transmission and engages automatically the service brakes.

Oil cooling of the torque converter/transmission circuit by oil-air radiator.

Transmission oil filtration by two full flow filters; one metal mesh and magnetic rod on suction, the other on the delivery with built-in by-pass valve.

Final drives

Thermostat setting .................................. 82 ÷ 93 °C

Central reduction with bevel gear set at the centre of the rear transmission housing.

Max. opening .................................................. 95 °C

Single reduction final drive.

Temperature in upper tank

Planetary gear final drive.

Maximum allowed ...................................... 101,6 °C

Reduction ratio 1 : 15.6.

Minimum recommended ................................ 100 °C

Oil-bath lubrication.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

3550

5

STEERING DIFFERENTIAL

UNDERCARRIAGE

The steering differential provides the steering of the machine without stopping the track chain, transmitting continuously power to both track chains when steering, also with tight turns. With both track chains moving, it is possible to push larger loads at maximum speed as well.

Composed by two frames of a boxed and welded structure type. The frames are connected frontally by a swinging cross-member and are hinged at the rear on the PIVOT-SHAFT.

The steering occurs by increasing the speed of one track chain and the slowing-down of the other one, in equal measure. The speed differential makes the machine steer. The steering system operates as a differential and it is composed of: a pump, a hydraulic motor and the relevant controls actuated by a single movement of the fingers.

Lubricated track chains.

Seven permanently lubricated bottom rollers and two support rollers for each track frame.

Sprockets with replaceable sectors toothed crown.

Permanently lubricated idlers, with hydraulic track chain tensioner.

- Number of bottom rollers per track chain: ........... 7 - Number of support rollers per track chain: .......... 2 - Number of shoes per track chain: .................... 44 - Width of standard shoes: ......................... 610 mm optional: ............... 711 mm

BRAKES Oil-bath disc brakes The single pedal in the cab actuates simultaneously the brakes of both track chains, both as service and emergency devices. The machine is prevented from moving with the parking brakes engaged. A manual system provides the disengagement of the brakes when there is no hydraulic pressure, to provide the towing of the machine in the event of failure.

Parking brake: automatically engaged, by lowering the transmission safety lever or engine inoperative.

ELECTRICAL SYSTEM Power voltage 24 Volt.

Alternator: DELCO REMY 70 Amp.

Starter motor: DELCO REMY 9.5 kW (type 42 MT) Starter motor with solenoid operated automatic pinion engagement.

Batteries: Two 12 Volt batteries connected batteries, 180 Amp. Maintenance-free type.

HYDRAULIC SYSTEM The hydraulic system, fully load-sensing, controls with the best efficiency, the hydraulic power required by the steering/equipment circuits.

The delivery on the steering circuit is prioritised when power is requested at the same time, on the equipment controls. The circuit is composed of a variable displacement piston pump and an hydraulic motor, distributing power appropriately to each track chain during the steering.

CAB Modular type cab, elastically mounted on elastic blocks, integrated by FOPS safety structure.

The cab ensures an excellent visibility of the blade and the rear attachments for maximum productivity.

Also, the cab ensures maximum comfort to the operator at all times.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

6

3550

WEIGHT AND SPEEDS The weight of the machine with HSU bulldozer blade plus arms and lifting cylinders plus linkages, without ripper, safety cab, fluids and operator: 35,900 kg (79,150 lbs) Maximum speeds (forward-reverse) in km/h: Speeds

I

II

III

- forward - reverse

3.8 4.4

6.1 7,1

10.3 11.4

RIPPER (optional)

Model ...................................................... RPMD350 Of a parallelogram type, with welded plate element frame. Three position tool bar with a semi curved type tool, with interchangeable tips.

Controlled by 4 double stroke hydraulic cylinders.

Weight: .................................... 3,200 kg (7,050 lbs)

AUXILIARY APPLICATIONS Some of the equipment described and illustrated in this Manual are provided in determined markets to satisfy specific requirements.

Other devices and special applications are provided upon request, in agreement with the Sales Organisation.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

3550

7

MAIN DIMENSIONS

3375

3500

(*)

520 3243

2134 2744

5282 8234

(*) 610 mm shoes or 711 mm shoes

Blade width mm

Blade height mm

Blade capacity m3

mm

Semi-U (HSU)

3975

1700

9.1

Angolable (HA) Ž

4620

1145

Full-U (HU)

4295

1650

BLADE TYPE

Tilt

D350M0006

Pitch

Digging depth mm

Blade lifting from ground mm

900

13°

600

1220

4.5

470

10°

685

1140

11.4

975

13°

600

1220

Ž Maximum angle: ± 25°.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

8

3550

STABILITY POSITION OF THE CENTRE OF GRAVITY In transportation condition

WARNING

Note - the centre of gravity depends upon the position of the equipment.

MACHINE W/ BLADE & RIPPER

LG (mm) HG (mm)

W/ blade and ripper on the ground

1680

1960

W/ blade on ground and ripper at max. height

1665

1990

W/ blade at max. height and ripper on ground

1670

1095

W/blade at max. height and ripper at max. height

1660

1115

Blade on the ground

1940

1880

Blade at max. height

1910

1015

MACHINE W/OUT BLADE AND W/OUT RIPPER

1465

1000

The machine, as delivered by the plant, is not intended for any other application and, in particular, should not be considered for use as a mean for hooking, lifting or moving suspended loads.

Any different usage, therefore, MUST BE AVOIDED, unless the machine has been originally provided, by the Manufacturer, with special equipment and particular instructions for specific applications.

MACHINE W/ BLADE ONLY

➤

Note - L G = Horizontal distance from sprocket C/L H G = Ground clearance

HG

➤

LG

➤

➤

D350M0007

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

3550

9

LIST AND LOCATION OF SAFETY DECALS All the safety plates applied on the machine to provide maximum operational safety against unavoidable risks, are listed here below: They have been divided into four groups:

Group A Group B Group C Group D Group E

-

danger decals warning decals general-purpose decals manoeuvre decals ROPS-FOPS homologation plates

The exact location on the machine is found in the figure here below.

LIST OF DECALS A A

B

C

D

E

1A

FIELD OF OPERATION SAFETY DECAL

2A

TRACK TENSIONER SPRING DECAL

3A

TRACK TENSIONER SAFETY DECAL

1B

FLUIDS UNDER PRESSURE DECAL

2B

OPERATION SAFETY DECAL

4B

BATTERY WARNING PLATE

5B

SWITCH DECAL

6B

BATTERY SAFETY DECAL

7B

ENGINE-FAN PLATE

8B

BRAKES SAFETY DECAL

9B

MANOEUVRE SAFETY DECAL

10B

HOT ZONE WARNING DECAL

11B

CAB TILTING SAFETY DECAL

1C

MAINTENANCE DECAL

2C

STEERING CLUTCH OIL PLATE

1D

EQUIPMENT OPERATION DECAL

2D

MACHINE LIFTING DECAL

3D

CONTROLS WARNING DECAL

4D

THROTTLE CONTROL DECAL

5D

EQUIP./TRANSM. CONTROL WARNING DEC.

6D

RIPPER CONTROL DECAL

7D

MASTER SWITCH DECAL

1E

CAB SAFETY STRUCTURE PLATE

2E

ROPS SAFETY STRUCTURE PLATE

3E

MARKING PLATE WITH OPERATOR'S PLACE

4E

MARKING PLATE WITH CAB

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

10

3550

LOCATION OF SAFETY DECALS

3550-M009

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

3550

11

3D 5B

9B

1D

6D 2B "A" D350M0135

D350M0008

7B 7D

DETAIL A

D350M0137

D350M0136

5D 4D

D350M0138

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

D350M0139

12

3550

LIST OF SAFETY DECALS Group A - Danger decals 1A

DANGER

KEEP CLEAR W170-3M012

2A

DANGER THE RETURN SPRING OF THE IDLER IS INSTALLED ON THE MACHINE WITH A CONSIDERABLE COMPRESSION LOAD. TO INSTALL AND REMOVE THIS PART COMPLY WITH THE PROCEDURES DESCRIBED IN THE " REPAIR INSTRUCTION MANUAL " 76035797 S 76

D350M0041

3A

DANGER FLUID UNDER PRESSURE DO NOT REDUCE THE TENSION OF THE TRACK CHAIN BY LOOSENING THE PRESSURE RELIEF VALVE. DO NOT REMOVE THE GRASE FITTING INSTALLED ON THE ADJUSTMENT VALVE. COMPLY WITH THE PROCEDURE RECOMMENDED IN THE "REPAIR INSTRUCTION MANUAL".

76035792 S 76 D350M0042

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

3550

13

LIST OF SAFETY DECALS Group B - Warning decals 1B

DANGER FLUID UNDER PRESSURE PRIOR TO REMOVING THE CAP OR THE COVER TURN IT SLOWLY TO RELEASE THE PRESSURE. REFER TO THE "OPERATION AND MAINTENANCE MANUAL".

79100862 S 76

D350M0043

2B

4B

DANGER PRIOR TOSTARTING, STARTING, ACTUATING PRIOR TO ACTUATING THE THE COTNROLS, REFILLING THE MACONTROLS, REFILLING THE MACHINE CHINE OR PERFORMING ANY MAINTEOR PERFORMING ANY MAINTENANCE NANCE INTERVENTION, CONSULT INTERVENTION, CONSULT THE THE "OPERATION AND MAINTE"OPERATION AND MAINTENANCE MANNANCE MANUAL" LOCATED IN THE UAL" LOCATED IN THE APPROPRIATE APPROPRIATE COMPARTIMENT. IN COMPARTMENT. IN THE EVENT THE THE EVENT THE MANUAL IS MISSING, MANUAL IS THE MISSING, THE FIAT CONTACT CNHCONTACT ITALIA S.p.A. ORKOBELCO ORGANISATION. IT IS A PREGANISATION. IT IS A PRECISE RECISE RESPONSIBILITY TO ENSURE THE SPONSIBILITY TO ENSURE THE CORCORRECT OPERATIONAND AND MAINTEMAINTERECT OEPRATION NANCE OF MACHINE. A WRONG OPNANCE OFTHE THE MACHINE. A WRONG ERATION CANCAN CAUSE DAMAGES AND OPERATION CAUSE DAMAGES EVENEVENF FATAL INJURIES. AND ATAL INJURIES.

EYE PROTECTION EXPLOSIVE GAS

DANGER EXPLOSIVE GASES ALWAYS PROTECT THE EYES AND FACE FROM THE BATTERY. CIGARETTES, OPEN FLAMES OR SPARKS CAN IGNITE THE EXPLOSION OF THE BATTERY. DO NOT CHARGE BATTERIES, NOR USE AUXILIARY CABLES, AND MODIFY TERMINALS WITHOUT COMPLYING WITH THE APPROPRIATE INSTRUCTIONS.

CAUSES SEVERE BURNS EVOID SPARKS OR ITTOXIC CONTAINS SULPHURIC ACID. AVOID ANY CONTACT OPEN FLAMES WITH THE SKIN, EYES AND CLOTHING. IN THE EVENT

SULPHURIC ACID

OF ACCIDENT FLUS WITH WATER AND SEEK MEDICAL HELP AT ONCE. KEEP AVAY FROM THE CHILDREN. D350M0014

D350M0009

11B

WARNING

3550-M012

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

14

3550

5B

9B

WARNING

WARNING ALWAYS TURN THE MASTER SWITCH TO BLOCK POSITION BEFORE STARTING, OPERATING, MAINTAINING, FUELLING OR SERVICING THE MACHINE AND AFTER PARKING IT.

THIS MACHINE IS EQUIPPED WITH A POWER STEERING OPERATING ONLY WHEN THE ENGINE IS IN OPERATION. THIS MACHINE IS EQUIPPED WITH AN EMERGENCY SYSTEM ACTUATING THE BRAKES WHEN THE ENGINE IS CUT-OFF.

D350M0140

THE EQUIPMENT OR VARIOUS ATTACHMENTS CAN BE LOWERED

BY MOVING THE CONTROL LEVER WITH ENGINE OPERATING OR INOPERATIVE.

6B

DANGER

WHEN A ROPS STRUCTURE IS MOUNTED, THE USE OF SAFETY BELTS IS RECOMMENDED.

FLAMMABLE FUMES

DO NOT CARRY RIDERS UNLESS THE MACHINE IS PROPERLY EQUIPPED TO TRANSPORT PASSENGERS

PRIOR TO CHECKING AND FILLING BATTERIES EXTINGUISH ALL SMOKING MATERIALS OR OPEN FLAMES. DO NOT CHECK BATTERIES BY SPARKING THE TERMINALS. 79012610 S 76

FOR NOISE LEVELS EXCEEDING 90 dB FOR CONTINUOUS WORK SHIFTS EXCEEDING 8 HOURS, WEAR APPROVED EAR PROTECTIONS.

D350M0044

MONITOR CONSTANTLY THE WORK AREA TO IDENTIFY DANGEROUS SPOTS. A FEW EXAMPLES OF DANGEROUS WORKING CONDITIONS ARE: DITCHES, FORESTS, ROCK OVERHANGS, DEMOLITION, FIRES, LAND FILLING, UNEVEN GROUND, INTENSE TRAFFIC, CROWDED PARKING, CROWDED MAINTENANCE AREAS AND FENCED ZONES. PAY GREATER ATTENTION IN THE ZONES MENTIONED ABOVE.

7B

WARNING BLADES AND BELTS ROTATING WHEN THE ENGINE IS STARTING OR OPERATING. KEEP AT SAFE DISTANCE.

KEEP FLAMMABLE MATERIALS AWAY FROM THE ZONES NEAR ENGINE EXHAUST MANIFOLDS AND DUCTS. CUT-OFF THE ENGINE FOR CLEANING OPERATIONS.

79031092 S 76

D350M0045

D350M0141

8B 10B

WARNING THE BRAKES ARE INOPERATIVE WHEN THEY ARE MANUALLY DISENGAGED. THE MACHINE MUST BE SECURED WITH APPOPRIATE BLOCKING DEVICES. THE BRAKES ARE PROVIDED WITH STRONGLY LOADED SPRINGS. TO REMOVE AND INSTALL THE BRAKES, ALWAYS COMPLY WITH THE PROCEDURES RECOMMENDED IN THE REPAIR MANUAL. 76066220 S 76

WARNING HOT AREA

D350M0046

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

76034930 S 76

D350M0047

3550

15

LIST OF SAFETY DECALS Group C - General purpose decals 1C MACHINE MAINTENANCE AND LUBRICATION INSTRUCTIONS OPERATIONS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29

MAINTENACE INTERVAL HOURS 10 50 250 500 1000 2000 ✓ ✗ ✓ ✓ ✗ ✚ ✓ ✗ ✓ ✗ ✗

✚ ✓ ✓ ✚

NO. POINTS 1 1 1 32 1 1 2

ENGINE: OIL FILTER ★ COOLANT FILTER IDLER: GREASE FITTING FINAL DRIVES: OIL LEVELS BELTS (ALTERNATOR, FAN, WATER PUMP)

1 1 2 2

TRACK FRAME PIVOT PINS: GREASE FITTINGS TRANSMISSION-TORQUE CONVERTER: DELIVERY FILTER STEERING PLANETARY SYSTEM AND BEVEL GEAR SET: RETURN FILTER HYDRAULIC SYSTEM: RETURN FILTER

2 1 1 1

Ø ✗ ✗ ✗ ✓ ✓

FUEL TANK: DRAINING OF CONDENSATION TRANSMISSION-TORQUE CONVERTER: SUCTION FILTER TRANSMISSION-TORQUE CONVERTER: BREATHER STEERING PLANETARY SYSTEM AND BEVEL GEAR SET: SUCTION FILTER STEERING PLANETARY SYSTEM AND BEVEL GEAR SET: BREATHER ENGINE: CALIBRATION OF INJECTORS ENGINE: VALVES

1 1 1 1 1 6 6

✚ Ø

PROPELLER SHAFT: GREASE FITTINGS ENGINE: BREATHER

1 1

✗ ✗ ✗

✗ ✗ ✗

✓

DESIGNATION OF THE POINT OF INTERVENTION ENGINE: OIL LEVEL ★ RADIATOR: COOLANT LEVEL TRANSMISSION-TORQUE CONVERTER: OIL LEVEL FRONT EQUIPMENT AND RIPPER: GREASE FITTINGS STEERING PLANETARY SYSTEM AND BEVEL GEAR SET: OIL LEVEL HYDRAULIC SYSTEM: OIL LEVEL FUEL FILTER

WRENCH

29 11

EO

APPROX. CAPACITY 35 L 37 L 68 L

TF PGL 5 STROKES EO 175 L HO 145 L

PGL 5 STROKES MPL 51 L

PGL 5 STROKES

2C

ERING STE

PGL 5 STROKES

OI

22 23 28 3

24

18 12 6

20 13 26

10 7 1 25 9 15 16 17 21

5

12

LUBRICANTS AND SPECIFICATIONS SYMBOL

EO

MPL TF PGL HO

L SU M P D350M0013

THE TRACK SUPPORT ROLLERS AND THE IDLERS DO NOT REQUIRE SERVICING

✓ = CHECK ✗ = REPLACE ✚ = LUBRICATE Ø = CLEAN

2

TYPE

TYPE ENGINE OIL COMPLYING WITH STANDARD API CF 4/SG E MIL L - 2104-E CONTENT OF SULPHURED ASHES 1.8% MAX. RECOMMENDED ALTERNATIVE AMBIENT TEMPERATURE SAE VISCOSITY AMBIENT TEMPERATURE SAE VISCOSITY °C(°F) °C(°F) ABOVE -10 (-50) 15 W -40 ABOVE 10 (50) 40 FROM -25 TO 20 (-13, 68) 10 W -30 FROM 0 TO 35 30 BELOW - 25 ARCTIC OIL FROM -10 TO 10 20, 20W OR 20W -20 PLEASE REFER TO THE MANUAL FROM -25 TO 0 10W GEAR OIL. HIPOIDE 90 COMPLYING WITH AL MIL - L - 2105 - D TRANSMISSION OIL C - 3 10W OR ENGINE OIL QUALIFIED FOR API CF/4SG AND MIL - L - 2104E 10 W SERVICE FOR TEMPERATURES ABOVE -23 °C (-10 °F).

(FOR TEMPERATURES BELOW -23 °C (-10 °F)REFER TO THE OPERATION AND MAINTENANCE MANUAL).

PUMPABLE GREASE (LUBRICANT FOR BALL AND ROLLER BEARINGS WITH A MINIMU MELTING TEMPERATURE OF 150 °C -302 °F) THE NUMBER OF STROKES DEPENDS UPON THE TYPE OF PUMPING (1 STROKE = 1.5 GRAMS).

HYDRAULIC OIL QUALIFIED DIN 51524 PART 1 / PART 2 - ISO VG46.

★ THESE SERVICE INTERVALS MUST BE 100 HOURS IF THE SULPHUR CONTENT EXCEEDS 0.5 %.

NOTE: REFER TO THE OPERATION AND MAINTENANCE MANUAL FOR FURTHER DETAILS. 76073212 S 76

D350M0011

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

16

3550

LIST OF SAFETY DECALS Group D - Manoeuvre decals 2D

1D

D350M0142

D350M0143

3D

WARNING 4D

BEFORE STARTING OR OPERATING THE MACHINE, READ THE "OPERATION AND MAINTENANCE" MANUAL. D350M0144

5D

WARNING BEFORE LEAVING THE OPERATOR'S SEAT, PLACE THE LEVER IN LOCK POSITION

D350M0145

6D

D350M0146

7D ON

OFF D350M0036

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

D350M0147

3550

17

LIST OF SAFETY DECALS Group E - ROPS-FOPS homologation decals 1E

D350M0015

With cab

2E

D350M0016

With operation position only

3E

With operation position only

D350M0017

4E

With cab

D350M0048

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

18

3550

PRELIMINARY INSTRUCTIONS AND BREAK-IN PERIOD PRELIMINARY INSTRUCTIONS

BREAK-IN PERIOD

When delivering the machine, the Sales Organisation personnel provides the main instructions regarding its operation and maintenance to the Customer.

This instructions are summarised in the list here below: - Decantation of fuel.

- Check of capacities: coolant, fuel and lubricants.

- Draining of deposits from the fuel reservoir.

- Air bleeding of fuel system.

- Starting and cutting-off the engine.

- Rules for a safe conduct at work.

- First period of operation.

- Operation of the machine and of the equipment.

- Lubrication and lubricants.

- Maintenance of the air cleaner.

- Maintenance of filters: fuel, engine oil and hydraulic oil.

- Maintenance of the engine cooling system (the system is provided with a water/antifreeze mixture of a glycol type).

- Maintenance of the hydraulic systems: torque converter/transmission, steering, equipment.

- Checking the on-board tooling.

A break-in period of at least 60 hours, is required, following the directions listed here below: - after each cold steering, operate the engine a few minutes at idle speed; - do not operate the engine at maximum power for prolonged time; - check frequently, if there are oil or coolant leakages.

Start the engine. Monitor all instruments and indicator lights; actuate the controls of the machine to check their operation. Cut-off the engine and check if there are eventual leakages from sleeves, pipes and connections.

WARNING Never perform interventions with engine running, except as called for in this Manual.

Before operating or performing any intervention on the machine, read carefully all the rules listed in this Manual.

During the first period of operation of the machine, besides the normal maintenance operations listed in the relevant chapter, it is recommended that supplementary operations are performed, which, at a later stage, are carried-out ad longer intervals, as listed here below: Within the first 50 hours work: - change the engine oil and relevant filter.

Within the first 250 hours work: - change the torque converter/transmission oil and the relevant filter; - replace the filter on the hydraulic oil return to tank.

Within the first 300 hours: - check the fuel feeding system and the engine valve clearance.

The above rules must be complied with after possible overhauls, as well.

Daily maintenance procedures: - engine oil level check; - belts tension check; - fuel filter condensation draining; - engine coolant level check; - hydraulic system oil level check; - transmission/torque converter oil level check; - bevel gear set, steering and brakes oil level check; - lubrication of cylinders, blade and ripper pivot pins.

WARNING Do not run the engine of this machine in closed areas without proper ventilation to remove deadly exhaust gases.

Be sure exposed personnel in the area of operation are clear of the machine before moving it or its attachments.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

3550

19

OPERATION RULES WARNING Study carefully this Manual before starting, operating, maintaining, fuelling or servicing the machine.

This alert symbol signals important messages involving your safety. It means: WARNING! BE ALERT! IT INVOLVES YOUR SAFETY. Read and heed carefully all safety instructions identified by the key words WARNING and DANGER. Do not operate machinery in a condition of extreme fatigue or illness; do not jump on or off the machine; use the appropriate handrails and steps which must always be kept clean. Also keep the operator's compartment clean; all tools and/or personal belongings not required on the machine must be removed or be secured.

This machine and its equipment must be operated exclusively by qualified personnel, seating in the operator's seat.

Your safety and the safety of bystanders depends upon your prudence and common sense in operating this machine.

It is necessary to be acquainted with the location and function of all controls and with stability features of the machine before starting to operate.

Before starting machine, check, adjust and lock the operator's seat for maximum comfort and control of the machine.

Be sure exposed personnel in the area of operation are clear of the machine before moving it or its attachments. WALK COMPLETELY AROUND the machine before mounting.

Keep all persons away form equipment being raised to avoid possible injuries.

Never attempt to operate the machine or its tools from any position other than seated in the operator's seat. Under all circumstances, keep head, body, limbs, arms and feet inside the operator's compartment to minimise the possibility of exposure to external dangers.

Make sure that the portion of the engine exhaust system under the hood is sealed.

In darkness, check area of operation carefully before moving in with machine. Use all lights provided. Check, during daylight as well, that all lights are operating. Replace burnt bulbs at once.

NEVER LEAVE THE MACHINE UNATTENDED with the engine running. The equipment can be lowered moving the control lever with engine running or inoperative.

Always, before leaving the operator's seat and after making sure all people are clear of the machine, slowly lower the attachments or tools flat to the ground in a positive ground support position.

Move eventual supplementary equipment to closed and safe position.

Return all controls to rest position.

Place engine controls on cut-off position.

Lock all controls and disconnect the starter switch.

Do not park the machine on a slope, without blocking it accurately, to prevent any movement.

Always engage the parking brake, before leaving the machine.

Sound horn.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

B

D350M0152

L

N

S

P

D350M0154

F N R

For steer leftward, pull the “A” lever, for steer rightward pull the “B” lever.

A

Open the external left panel and turn the main switch into position “ON”.

D350M0127

B

A

At the end of the operations: cut-off the engine, disconnect the starter switch, open the external left panel and turn the main switch into position “OFF”.

D350M0155

9-

D350M0153

6-

1-9

3-

D350M0150

Starter switch

START

7

D350M0156

D

7

6

2-5

3

D350M0157

D350M0158

4-7

Insert the key into the starter switch, push it in and turn it into position “START”.

Warm-up the engine for at least 5 minutes.

H

OFF

ACC

ON

Raise the equipment moving the blade control lever into position “D”.

7-8

2-5

D350M0149

B

Make shure that the transmission and implement control safety device are in position “A”.

Main switch

2-

D350M0148

A

To move the machine: - Move the L control in “F” position for (forward speed), or in “R” position for (reverse speed) press the switch “N” to obtain neutral position.

- Accelerate using the lever “A” on dashboard.

- To brake, press the pedal “B”.

7-

8-

1-

Main switch

B

A

5-

4-

A

D350M0148

D350M0149

B

Unlock the transmission and implement control safety devices, moving the levers from position “A” into position “B”.

B

A

Adjust the engine speed operating on the lever “A” (throttle control).

D350M0151

A

20 3550

3550

21

CONTROLS AND INSTRUMENTS 1.

Safety lever (equipment control and gearshifting lever locking) 2. Neutral button 3. Blade control lever 4. Ripper control lever 5. Engine starter switch 6. Ashtray 7. Cigarette lighter - 24V DC Power Outlet 8. Horn 9. Air inlet ducts 10. Cab heating and ventilation controls 11. Transmission control buttons and direction control lever (Forward/Reverse) 17 16

2

12.

13.

14.

15.

16.

17.

18.

19.

20.

21.

22.

AUTO SHIFTING "AS" function button (Optional) Steering control levers Armrest adjustment levers Transmission safety lever (Gearshifting lock) Instrument panel Switch and indicator panel Engine throttle lever Engine decelerator control pedal Electrical system master switch Brake pedal CUMMINS engine monitor panel

21 18

19

14

11 15

1

9 13

9

14

12

3

22

4 20

6

10

7 5 8 9

9

D350M0018

For the version equipped with ROPS structure, components 5, 7, 8 are located on the dashboard, as indicated.

Note - The terms left and right used in this text, are intended as referred to the operator seating in its seat facing forward.

3550-M006

on ROPS Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

22

1.

3550

SAFETY LEVER (Equipment control and gearshifting lever lock)

3.

The device, lifted as illustrated in the figure in position A (vertically) blocks the EQUIPMENT CONTROL LEVERS AND THE GEARSHIFTING BUTTONS in neutral position.

This is to avoid unwanted movements of levers (3-4) and buttons (11) which could cause dangerous manoeuvres. In this position, the parking brake is automatically applied.

Position B: it activates the equipment control levers, the gearshiftng buttons and disengages the parking brake.

BLADE CONTROL LEVER

The lever controls the raising, lowering and tilt of the blade.

To raise or lower the blade, move the lever backward into position D or forward into position H, respectively.

The blade stops in the desired position, in both instances, when the lever is released and returns automatically in neutral N. To float the blade, i. e. resting on the ground under the effect of its weight only, press the button located on the pilot valve and push forward the lever to stroke end at the same time, into position F, where it is kept by an appropriate detent.

The floating condition is terminated when returning the lever into position neutral N. When the lever is moved leftward into position A, or rightward into position B, the blade is tilted. The lever must be held until the blade reaches the desired tilt.

F

3550-M013

H

Position A = neutral Position B = operation position

B

A D

2.

NEUTRAL BUTTON

A

2

1 n/min

0

1000

3

D350M0159

F H N A

B D

Blade control lever

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

3550-M011

3550

4.

-

23

RIPPER CONTROL LEVER (upon request) With lever forward in P = lowering the ripper.

With lever backward in R = raising the ripper.

With lever forward + button = opening pitch.

With lever backward + button = closing pitch.

With lever at centre in N = neutral position.

Safety lever indicators

A

1

0

5

2 n/min

1000

3

3550-M004

on ROPS

WARNING Prior to starting the engine, make sure that the gearshifting lever is in neutral position and the parking brake is engaged.

D350M0036

The starter switch is used to start and cut-off the engine.

To operate it turn the key.

3550-M003

5.

ENGINE STARTING SWITCH

Engine starting switch and key

D350M0038

on CAB

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

24

3550

Positions: OFF

6.

ASHTRAY

- Position allowing the insertion and removal of the starter key. Engine inoperative.

7.

ACC

- All functions related to electrical system services are activated. The indicator lights onthe instrument panel (see Instrument panel) come ON.

24V DC POWER OUTLET/ CIGARETTE LIGHTER The power outlet is equipped with cigarette lighter (on the option with cab) and can be used to feed 24V DC power supply to a trouble lamp or a fuel transfer pump.

ON

- All other functions of the electrical system are activated and the safety lever indicator lights come ON

8.

HORN

9.

VENTILATION DUCTS

D350M0160

Safety lever indicator lights

6

9

7 8

START - The functions relative to position "ACC" are cut-off. Starting of the engine. The switch returns automatically to position "ON" when the key is released.

Starter key

In the event the engine fails to start, wait for 30 seconds before a new attempt; this is to protect the batteries and the starter motor from overheating.

Note - For particularly frigid temperatures (down to -15 °C (-5 °F)) use an engine oil with appropriate viscosity and fuel with low temperature additives.

Down to - 20 °C (- 4 °F) the use of artic fuel and larger batteries (180 Ah - 770 A) is recommended.

D350M0039

10. CAB HEATING AND VENTILATION CONTROLS (For the setting of the controls, refer to the cab)

WARNING Under forced starting conditions (i.e. low ambient temperatures) don not insists beyond three attempts of 30 s max. each, intervalled by at least a 2 minutes pause, to avoid thermal overheating damaging electrical components. After the third attempt, let the starter solenoid to cool-off to a temperature of 25 °C (77 °F).

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

D350M0019

3550

25

11. GEARSHIFTING GROUPE The machine is equipped with three forward and three reverse speeds. The controls are electrically actuated by the following buttons, located in the left side of the cab, on the ergonomic armrest.

With the two safety levers lowered, when lever L is turned and pushed forward into position F the machine moves forward, selecting 1st gear.

Display on the dashboard

1850-2M0150

L

N Selection of reverse ("R") F

N R

P S

When turning lever L into position ("R") the machine shifts automatically into 1st REVERSE, so that the machine can move backward only, with the possibility of choosing always among 1st, 2nd, 3rd, with buttons P or S. In the event, for example, the machine operates in 2nd forward and the direction is reversed, moving the gearshifting selector lever into position "R", there is an automatic shifting from second forward into 2nd reverse.

D350M0077

F. Selection of forward speed - L. Direction selection lever (forward/reverse) - R. Reverse speed selection Buttons P. Upshifting - S. Downshifting - N. Neutral.

On the contrary, when turning and pulling lever L into position R, the transmission shifts into 1st REVERSE and the machine moves backward. When engaging the reverse direction, a back-up alarm sounds. The gear shifting and the direction reversing can be performed with the machine standing or in motion. When pressing button P it is possible to upshift to the most appropriate speed from 1st through 3rd.

To downshift, for example from 3rd to 1st, it is necessary to push button S twice.

When pressing button N, the transmission is shifted into neutral, not withstanding the gear or direction selected.

INVERSION LOGIC The gears are selected in accordance with the following inversion logic: if in 1a F and R is pressed it shifts into 1a R if in 2a F and R is pressed it shifts into 2a R if in 3a F and R is pressed it shifts into 3a R if in 1a R and F is pressed it shifts into 1a F if in 2a R and F is pressed it shifts into 2a F if in 3a R and F is pressed it shifts into 3a F

Gear upshifting (P) The transmission gears are upshifted each time button P is pressed, to select the most appropriate working speed, up to 3rd gear.

Selecting forward speed ("F") When pressing button ("F") the machine is set in 1st forward.

When pressing, afterward, button P, the speeds are upshifted.

When pressing S the downshifting to the lower speed occurs. The display on the dashboard shows the speed engaged.

Gear downshifting (S) To downshift, press button S.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

26

3550

13. STEERING CONTROL LEVERS

12. AUTOSHIFT "AS" FUNCTION Button AS is selected when a work cycle must be performed with frequent FORWARD - REVERSE movements. The system is arranged in 1st forward for the work phase and 2nd reverse for the backward travel.

D350M0080

D350M0079

AS: AUTO-SHIFT button.

Steering to the right When pulling gradually the right lever, the rightward steering is obtained. the right track chain slows-down whereas the left track chain accelerates in the same amount. The speed differential steers the machine.

The more the stroke of the lever the more is the turning of the machine.

When button AS is pressed, there is an intervention on the direction reversing logic.

When pressing the AUTO-SHIFT button once, the option is activated and the symbol AS appears on the display (when an EXXX error signal is not present).

The option is cut-off by pressing the button a second time.

The gears are selected in accordance with the following reversal logic.

D350M0081

REVERSAL LOGIC (with "as" function activated)

Steering to the right

if in 1st F and pressing R shifting into 2nd R if in 2nd F and pressing R shifting into 2nd R if in 3rd F and pressing R shifting into 3rd R if in 1st R and pressing F shifting into 1st F if in 2nd R and pressing F shifting into 1st F if in 3rd R and pressing F shifting into 1st F

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

3550

27

Leftward steering When pulling gradually the right lever, the rightward steering occurs, the right track chain slows-down, whereas the left track chains accelerates in the same amount. The speed difference makes the machine steer.

The higher the lever stroke is, the higher the steering of the machine is.

To adjust the height and the angle, loosen lever A, adjust as required and lock it again.

For the horizontal setting on the sliding guide, loosen lever B, adjust (forward/backward) and lock it when the forearm is in the optimised working position.

(Stroke about 100 mm).

Armrest

A

B

D350M0084

D350M0082

Rightward steering Neutral button When neutral button N is pressed, the transmission shifts directly into neutral, thus in this position it is not possible to perform the counter-rotation (the track chains move in opposite directions). When the left or right levers are pulled, it is possible to steer the machine.

15. TRANSMISSION SAFETY LEVER This device can have two positions.

Position A (vertical): in this position it is possible to start the engine.

When parking with engine in operation, the gearshifting buttons are neutralised. This is to avoid that an unwanted shifting could cause dangerous movements. In this position, the parking brake is engaged.

Position B (lowered): the lever allows the shifting of gears and releases the parking brake.

N A B D350M0083

14. ARMREST ADJUSTMENT LEVERS To adjust the position of the transmission/steering control armrest to the needs of the operator, proceed as described here below.

D350M0085

Position A = neutral Position B = in operating position

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

28

3550

16. INSTRUMENT PANEL Indicator lights and instruments

L1

L2

L3

L4

L5

L6

L7

1

L8

L9

L10 L11

L12

2 n/min

DL1

DL2

S1

0

x 1000

3

S3

S2

S4 1850-M0001

L1.

L2.

L3.

L4.

L5.

L6.

L7.

L8.

L9.

Battery charge indicator Engine oil pressure indicator Engine air cleaner indicator Hydraulic oil filter indicator Transmission oil pressure indicator Transmission oil temperature indicator Brake failure indicator Optional red lamp General alarm indicator

L10.

L11.

L12.

DL1.

DL2.

S1.

S2.

S3.

S4.

Front work lights indicator Rear work lights indicator Headlights indicator + dashboard light Fuel reserve LED indicator Engine coolant temperature LED indicator Fuel level instrument Engine coolant temperature gauge Display Rev. counter.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

3550

29

L1. Battery charge indicator

L7. Brake failure indicator

The indicator light comes ON when the charging of the batteries is insufficient.

L8. Optional red lamp L2. Engine oil pressure indicator The indicator light is activated when the pressure of the engine lube oil drops below a defined value. Also, it comes ON when the engine oil filter is clogged.

L3. Engine air cleaner indicator The constant glowing of the indicator signals the clogging of the air cleaner cartridges, requiring cleaning or replacement.

L9. General alarm indicator It warns the operator with a dual signal (sound and flashing light) about possible functional troubles signalled by the indicators.

When the general signal operates, it is necessary: - to stop the machine and cut off the engine; - to disengage the electrical system master switch; - to take the measures required to eliminate the cause of the trouble. If the trouble persists, contact the service organization.

L4. Hydraulic oil filter indicator The activation of the indicator signals the clogging of the oil filters, which require to be replacement.

L10. Front work lights indicator The indicator light comes ON when the switch is engaged.

L5. Transmission oil pressure indicator The activation of the indicator signals an insufficient pressure, which could be caused by: - clogged oil filters; - use of oil with a viscosity not appropriate for the ambient temperature; - abnormal operation of the system.

If required, perform appropriate inspections taking the necessary corrective actions; if the trouble persists, contact the service organization.

L11. Rear work lights indicator The indicator light comes ON when the switch is engaged.

L12. Headlights indicator + dashboard light The indicator light comes ON when the switch is engaged.

L6. Transmission oil temperature indicator The activation of the indicator signals an excessively high temperature of the oil; trouble which could be caused by: - clogged oil suction filter; - prolonged operation of the machine under irregular conditions; - abnormal operation of the hydraulic system.

Overheating of the oil must be avoided since it alters the specifications of the oil and jeopardizes operation of the components.

Operating with oil at temperatures relatively high is permitted for short periods, provided that the engine coolant, circulating in the heat exchanger and cooling the oil, does not reach excessive temperatures.

DL1. Fuel reserve LED indicator The activation of the indicator light signals that it is necessary to refuel.

DL2. Engine coolant temperature LED indicator It comes ON when the temperature of the coolant in the radiator is too high.

Notice – In any case, keep in mind that in order to obtain maximum performance by the torque converter, the speed engaged must be appropriate for the work to be done.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

30

3550

INSTRUMENTS DL2

Coolant temperature This instrument indicates the temperature of the coolant.

When the temperature is too high (red zone), the indicator light (DL2, indicator lights figure) comes ON, signalling that the engine is overheating. Run engine with no load until temperature drops.

S2

1850-2M0073

Tachometer (rpm x 1000) It indicates the engine rpm.

1

2 n/min

0

x 1000

3

S3

S4 1850-2M0074

Fuel level It indicates the level of the fuel in the reservoir. When the pointer is near the red zone, indicator light (DL1) comes ON, signalling an "empty reservoir". Refuel as soon as possible.

DL1 S1

1850-2M0075

Display S3 The display shows three functions: A) - Digital hourmeter, indicating the total work hours and it is automatically activated when the ignition switch is turned on (four, five and six digit); B) - Speed engaged: one (five and six for AL/AS functions) digit; C) - Error codes, one (with 0) and three, four, five and six digit (for example 0 E016).

1850-2M0151

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

3550

31

When the failed component is one only, the display shows a code listed in TABLE 1.

For each trouble code, find the corresponding component. Ex: 0 E016

TABLE 1 Failed component

Trouble code

Left proportional solenoid valve coil

E001

Right proportional solenoid valve coil

E002

Forward "F" speed solenoid

E004

Reverse "R" speed solenoid

E008

1st speed solenoid

E016

3 speed solenoid

E032

Left steering lever solenoid

E064

Right steering lever solenoid

E128

rd

When the failed components are two, the display shows a trouble code listed in TABLE 2, given by the addition of two single codes listed in TABLE 1. As an example, code 024 indicates that two parts are in trouble. On the top, the column identifies, in correspondence with the "1st speed" solenoid (first failed component).

1850-2M0153

TABLE 2 Failed component

LH prop. sol. RH prop. sol. For. "F" Rev. "R" 1 st speed 3 rd LH steer.

RH steer.

Valve coil valve coil speed solen. speed solen. solen. speed solen. lever solen. lever solen.

Left prop. solenoid valve coil Right prop. solenoid valve coil Forward "F" speed solenoid Reverse "R" speed solenoid 1 st speed solenoid 3 rd speed solenoid Left steering lever solenoid Right steering lever solenoid

001

003 002

005 006 004

009 010 012 008

017 018 020 024 016

033 034 036 040 048 032

065 066 068 072 080 096 064

129 130 132 136 144 160 192 128

Reverse "R" speed solenoid trouble code Trouble code on display 1st speed solenoid trouble code Whereas, on the left, it identifies the reverse speed "R". The crossing of the two components determines the trouble code, given by the addition of the two.

Reverse "R" speed solenoid trouble code 1st speed solenoid trouble code

= 008 + = 016

Trouble code for both

= 024

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

32

3550

17. SWITCH AND INDICATOR PANEL A

1 n/min

2 A

0

1000

3 1

0

2 n/min

1000

3

g i h e f

a

b c

d

e

f

g

h

i

3550-M007

on CAB

3550-M008

on ROPS

a. FRONT/REAR 1 speed SWITCH (with cab only) - b. FRONT/REAR WASHER BUTTON (with cab only) - c. SIDE DOORS WASHER BUTTON - d. SIDE DOORS WIPER 2 speed SWITCH - e. LIGHT SWITCH - f. FRONT WORK LIGHT ACTIVATION SWITCH - g. Rear work light activation switch - h. Safety lever indicator - i. Indicator signalling the presence of water in the fuel filter.

g.

REAR WORK LIGHT ACTIVATION SWITCH

h.

SAFETY LEVER INDICATOR The indicator lights come ON when the machine is started and the equipment control safety lever (1) and gearshifting safety lever (2) are in raised position (A) (NEUTRAL).

The indicator lights go OFF, when the levers are lowered to operate the machine (Posit. B).

3550-M014

Position A = NEUTRAL Position B = operation position D350M0163

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

3550

33

18. ENGINE THROTTLE LEVER

20. ELECTRICAL SYSTEM MASTER SWITCH

Forward = maximum acceleration.

Backward = minimum acceleration.

The electrical system master switch is found when opening the left panel, indicated in the figure. The key of the electrical system master switch must be in position ON when the system must be operational.

Turn the switch key into position OFF (same as moving direction of machine) when the machine is parked at the end of the work shift, then extract the key.

In doing so, the eventual abuse by unauthorised personnel is made more difficult.

19. ENGINE DECELERATION CONTROL PEDAL When pressing the pedal, the engine rpm's are, momentarily, reduced to slow idle.

A

1 n/min

0

21

1000

2

18

3

D350M0067

19 3550-M010

21. BRAKE PEDAL When the pedal is pressed, both track chains are braked.

22. MONITOR PANEL

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

34

3550

OPERATING INSTRUCTIONS GENERAL INFORMATION Before placing the machine in motion, be certain it has been properly prepared for use and has been properly serviced since the last operating period. Refer to the chapter "PRELIMINARY INSTRUCTIONS AND BREAK-IN PERIOD" for detailed information.

If repairs have been made during the last period of inactivity of the machine, ensure that all bolts and nuts of the components involved are properly tightened and that all necessary adjustments are made.

- Check the hydraulic oil level.

- Check the torque converter/transmission oil level.

- Check the operation of the throttle pedal, the colour of exhaust fumes and the exhaust noise.

- Check the ROPS cab, safety belt for eventual damages and the loosening of securing fixtures.

- Prior to starting operating the machine, warm-up the various components, without considering the season.

- Do not operate the engine at high speed without load, especially when cold.

PRIOR TO STARTING (DAILY)

ENGINE STARTING

By reacting promptly as soon as troubles develop it is possible to reduce maintenance costs and machine downtime. Thus, it is recommended that, every day, prior to starting working or at the end of the day, a walkaround inspection is done, performing the following operations: - Remove dirt, mud, oil and snow from the machine; - Check if there are oil leakages.

Open the left side panel.

DANGER In case it is difficult to identify the cause of leakage due to the presence of dirt, clean the component to be inspected.

Start the engine to identify coolant or oil leakages.

Oil leakages under pressure are dangerous since hydraulic oil could penetrate under the skin.

Do not try to locate leakages from the hydraulic system using bare hands. Use a piece of cardboard.

WARNING Warn all people who may be servicing or working around the machine before starting.

Do not run the engine of this machine in closed areas without proper ventilation to remove deadly exhaust gases.

Observe all start-up procedures and WARNINGS listed in this Manual.

Turn ON the ELECTRICAL MASTER SWITCH located inside the left side panel of the cab indicated in the figure.

- Check for eventual damaged hoses and pipes in the hydraulic system.

- Check the engine oil level and the presence of contaminants in the oil.

- Check fuel level in the tank.

- Drain eventual water from the sedimentation filter.

- Check the coolant level and the presence of dirt on the radiator fins.

- Check the engine air cleaner clogging indicator.

- Check the operation of instruments and indicator lights on the dashboard, lights, horn.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

D350M0067

3550

35

Climb on the machine using only points where handrails and steps are provided.

Prior to climbing on the machine, clean and inspect steps and handrails.

Climb and descend the machine facing it.

Kepp three contact points with handrails and steps.

Note - The three contact points can be two feet and one hand or two hands and one foot.

Do not climb or leave the machine while in motion.

Do not junp off the machine.

Do not attempt climbing or leaving a machine while transporting equipment or other materials.

D350M0087

When entering or leaving the operator's compartment, do not use any control as a grabbing point.

Make sure that the GEARSHIFTING and BLADE CONTROL safety levers are in neutral position (raised).

Insert the key into the starter switch, pressing it slightly and turn it clockwise into position "ON", fig. starter key.

Motion direction ON START ACC. D350M0072

OFF H

Secure the safety belt before placing the machine in motion.

Starter key D350M0020

Adjusted it while seated.

Adjust and block the seat in the most convenient and comfortable position.

Monitor the instrument panel and the indicator lights that there are no troubles on the machine. Return the switch into OFF. Eliminate eventual troubles identifying the cause. Return the switch into "ON" then move the throttle lever half way.

Press the engine starter switch key and turn it into position "START".

Once the engine is started, release the key.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

36

3550

Do not keep the starter key in position START more than 10 seconds at each attempt; otherwise, the starter motor is damaged.

Warm-up the engine for at least 5 minutes, without considering ambient conditions.

Reduce the engine speed.

Move the gearshifting control to neutral, pressing button N and engage the relevant safety lever into neutral position A.

N

Notice - If the engine has been inoperative for a long time or with low ambient temperature, increment eventually, the circulation of fuel with a few strokes of the primer pump.

Notice - Do not operate the starter motor for more than 10 seconds.

If necessary, wait for a few seconds to facilitate the cooling-off of the starter motor. Avoid pointless starting attempts, since there is the risk of exhausting the batteries. Search for cause of failed starting.

Notice - The most frequent causes of starting failure may be: presence of air in the fuel system, low battery charge, defective operation of the starter motor or faults in the electrical system.

D350M0088

A B

STOPPING THE MACHINE D350M0085

WARNING Never park on a slope without blocking accurately the machine to prevent any movement.

Every time the operation of the machine is interrupted, for whatever reason, check that all controls are in neutral position and that the equipment control lever locking device is in lock position.

Position A = neutral Position B = operation position Lower the equipment to the ground and engage the equipment safety lever into neutral position A.

WARNING Always, before leaving the operator's seat and after making sure all people are clear of the machine, slowly lower the attachments or tools flat to the ground in a positive ground support position.

Move eventual supplementary equipment to closed and safe position.

Return all controls to rest position.

Place engine controls on cut-off position. Lock all controls and disconnect the starter switch.

3550-M013

Position A = neutral Position B = operation position

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

3550

37

STOPPING THE ENGINE

OPERATOR'S SEAT ADJUSTMENT

WARNING - NOTICE At the end of each operation period of the machine, do not cut-off the engine suddenly, but it is recommended that a cooling-off period variable from 3 to 5 minutes is observed, prior to stopping the engine. A sudden cutting-off of the engine with the turbine at high temperature will result in a transfer of heat to the bearing housing. Repeated hot cutting-off could damage the shaft bearings.

With engine at low idle, move the engine starter key into position OFF and remove the key.

The seat is provided with devices allowing the inclination and height of the cushion, the height and rake of the back rest and the controls reach distance.

WARNING Before starting the machine, adjust and lock the seat for maximum comfort and control of the machine.

Inspect periodically the seat belt. No traces of fraying, wear or other weaknesses that could lead to failure must be found.

Motion direction ON START

6

ACC. OFF H

3 Starter key D350M0021

4 5

Prior to leaving the machine, in case this is going to be unmanned, move the ELECTRICAL SYSTEM MASTER SWITCH into OFF and remove the key.

1

2 1850-M0134

1 2 3 4 5 6

-

Height adjustment (mechanical).

Operator's weight correct setting indicator.

Backrest angle adjustment.

Front cushion 3-position angle setting.

Horizontal adjustment (sliderails).

Lumbar support adjustment, 5-position.

D350M0067

If outdoor temperature is low, it could be difficult starting the engine. It is appropriate to pre-heat the engine; please refer the relevant instructions at item 5 (Starter switch).

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

38

3550

FUEL RESERVOIR

BLADE ADJUSTMENT

Extinguish all smoking materials and open flames before checking and filling fuel reservoirs.

Never refuel with engine in operation.

Never use matches, cigarette lighters or torches as a source of light near flammables.

Angeldozer version The blade tilt and pitch can be obtained by the upper adjustment rod of the right or left link. Otherwise, when he blade system is equipped with a hydraulic cylinder, the manoeuvre is done by it. To obtain larger angles for the blade, lengthen or shorten adjusting rod L through rod M. In this manner, the pitch angle is changed as well.

DANGER

Always use fuel that has settled. When transferring fuel from the settling vessel to the machine reservoir, use a pump equipped with a filter, using the 24 Volt power socket.

It is recommended that the refuelling occurs at the end of each day's work; this will prevent condensations during overnight parking. Do not run-out of fuel; this will cause the entry of air into the fuel system with consequent need for a bleeding operation.

L

M D350M0090

E

D350M0022

Fuel filter cap

T D350M0091

Bulldozer version In the bulldozer version, with a blade tilt control cylinder on the right side, tighten or loosen sleeve E using bar T to move further.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

3550

39

CAB REMOVAL WARNING The removal of the cab is required to gain free access to some main groups of the machine, needing repair interventions, such as: - transmission pump 1 - equipment/steering pump 2.

Make sure that the cables are anchored to a point strong enough to support the load to be applied. keep all bystanders away from the anchoring point of cables and chains.

WARNING Avoid kinking chains or steel cables. Always wear protective gloves to handle cables and chains.

1

A

2

D350M0051

To remove the cab from the machine, it is necessary to proceed as follows: - sling the fuel tank using appropriate hooks inserted into the lifting rings A provided; - the hooks must be attached to a hoist through adequate cables or chains; - remove the screws indicated securing the tank to the frame and disconnect the pipes; - lift the tank, using a hoist and rest it on an appropriate surface to prevent damaging it.

D350M0052

- Disconnect the hoses of the brake system.

- Disconnect the hoses of the hydraulic control valve controls.

- Disconnect the hoses of the cab air conditioner/ heating.

- Disconnect the electric wires under the cab floor, indicated in the figure.

D350M0053

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3550

- Sling the cab protection structure using lifting chains or cables in the point indicated in the figure and attach them to a hoist.

- Remove securing screws 1, from the protection structure.

- Repeat the operation on the opposite side of the machine.

- Lift the structure and move it away from the machine.

- Remove the screws of the right and left front supports under the right and left front mudguard, as indicated.

1

D350M0118

D350M0054

- Remove the screws of the right and left rear supports reaching them from the rar side of the machine in the zone under the cab, as indicated.

WARNING Make sure that the cables are anchored to a point strong enough to support the load to be applied. keep all bystanders away from the anchoring point of cables and chains.

WARNING Avoid kinking chains or steel cables. Always wear protective gloves to handle cables and chains.

D350M0119

- Remove the screws of the four supports, two at the front and two at the rear, securing the cab to the frame.

- Lift the cab using a hoist.

REINSTALLATION OF THE CAB To reinstall the cab, reverse the sequence used for the removal, described here above.

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41

BRAKES DISENGAGEMENT In the event the engine is inoperative and the machine must be moved, it is necessary to manually disengage the brakes, proceeding as follows:

T

Tooling required: - wrench, 19 mm and 22 mm; - allen wrench 8 mm; - hand pump (*P/N 75295017); - q.ty 2 brakes disengagement screw (*P/N 75301711) D350M0057

WARNING Brakes applied position

Brakes mechanically disengaged are inoperative.

Prior to beginning the operations for the disengagement of the brakes, implement all the precautions required to block the machine.

S

C

4,5 mm mm 4.5

B

D350M0164

Remove plug (7) using an Allen wrench and tighten disengagement screw (A, fig. B) complete with washer and locknut (C) on piston (S).

A

WARNING Brakes are inoperative when manually released for servicing. Provisions must be made to maintain control of the machine by blocking or other means before starting the operation.

Form the left side of the machine, open the rear panel to reach the diagnostic board, indicated in the figure.

D350M0056

D350M0120

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Connect a hand pump (*75295017) to the brake port indicated in the figure and actuate it until disengagement screw (A, fig. E) protrudes, indicating that piston (S) is unlocked (about 4.5 mm).

Tighten locknut (C fig. F) until it contacts the face of the transmission housing to prevent piston (S) from returning in. In this position, the machine is free from braking on one side only.

Repeat the operations from 2 through 4 on the opposite side.

Brakes disengaged position

S

4.5 mm D350M0166

C

A

F

D350M0058

- Release the pressure of the pump. In this position the machine is free and it is ready to be moved.

Note - The hand pump must provide a delivery of at least 100 cm3 per stroke and a head of at least 20 bar.

Brakes disengaged position

S

4.5 mm D350M0165

C

A

E

(*) For special tools, please contact your Authorised Service Centre.

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TOWING THE MACHINE Prior to the towing, make sure that the cable or the towing bar are in good conditions and are strong enough for the towing. Use a cable or a towing bar having a capacity of at least 1.5 times the gross mass of the pulling machine, in the event a disabled machine stuck in mud must be recovered or must be towed on a slope.

When towing, connect the towing cable to the prescribed points on the fame only, if installed.

These towing instructions are intended to move a machine incapable of moving on its own a short distance at slow speed. Pull the machine at a speed of 2 kmph (1.25 mph) or lower toward a place suitable for the repair operation.

Always transport the machine, if a longer distance haulage becomes necessary.

Do not use chains for towing. A link of the chain could snap, causing personal injuries. Use a steel cable with eyes at the ends. Place a flagman in a safe position to stop the towing operation in the event the cable starts breaking or fraying. Stop towing every time the pulling unit moves without moving the machine on-tow.

Keep the angle of the towing cable at a minimum.

Do not exceed a deviation angle of 30 ° from a straight position.

A sudden movement of the machine could overload the cable or the towing bar. causing its failure. For better working conditions, move gradually and smoothly.

Normally, the towing machine must have the same characteristics of the machine on-tow. Check that the towing machine has a sufficient mass and power, capable of controlling both machines in relation to the slope and distance to be travelled.

To allow a sufficient control and braking, when moving a machine down a slope, it could be necessary a larger machine or connecting other machines to the rear part, to avoid uncontrolled movements.

It is not possible to provide instructions for different situations. The minimum capacity of the towing machine is sufficient for flat surfaces whereas the maximum one is required on gradients or rough terrain.

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MOVING THE MACHINE WITH OUTSIDE MEANS Towing and recovering the machine Should the engine fail to start or when the machine must be towed, it is necessary to disengage manually the brakes, as described in chapter "TOWING THE MACHINE" of the Instruction Manual.

For this operation, use equipment or vehicles appropriate for this purpose.

When using cables for towing or recovery, make sure that all parts are in good conditions and are free from defects or troubles.

Avoid kinking or bending chains; do not pull unless this conditions are eliminated, since they could cause failures and backlashes.

The maximum allowable load on the rear towing hook is 580 kN (only for machine excluding an eventual ripper).

Weight of the machine with HSU blade .................... 35,900 kg (79,150 lbs) with HSU blade + ripper ....... 39,100 kg (86,200 lbs) with HA blade ....................... 34,110 kg (75,200 lbs) with HA blade + Ripper ......... 37,311 kg (82,260 lbs) Lifting The same recommendations seen in the preceding point for the use of cables and chains apply.

Always handle tractor and equipment separately.

For the tractor, a slinging as illustrated in the figure is recommended.

For the front equipment it is recommended that the two end eyes of the blade and the tips of the blade are hooked, as illustrated in the figure.

Max. 580 kN D350M0128 D350M0167

The maximum allowable load on the front hook is 485 kN.

Prior to lifting, check that: - the parking brake is applied; - all cab doors, panels and mobile parts are secured; - all actuating cylinders are secured by the appropriate pins.

Max. 485 kN D350M0129

Cables and chains must be firmly secured; make sure that they are attached to a point strong enough in relation to the effort to be made, which, in any case, must not exceed the maximum allowed value for the towing hook involved.

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D350M0168

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INSTRUCTIONS FOR LOWERING THE EQUIPMENT TO THE GROUND WITH ENGINE INOPERATIVE WARNING Obey all procedures and WARNINGS relative to the instructions for STOPPING THE MACHINE and CUTTING-OFF THE ENGINE listed in this Manual.

The equipment can be lowered with appropriate movements of the control levers, with engine running or inoperative.

Move slowly FORWARD the specific control lever (blade or ripper) causing the lowering of the equipment involved; grade the lowering speed, with particular care, towards the final tract of the descent, before touching the ground.

When the blade is firmly bearing on the ground, move the lever alternatively FORE and BACK to stroke-end, a couple of times.

With this manoeuvres the equipment is bearing firmly on the ground and the residual pressures in the hydraulic system are released as well.

Loading Before proceeding with the loading operation, make sure the ramps and carrier platform are lined with suitable non-skid material (wood, rubber etc.) securely fixed to the above parts (avoid using wood planks, old tyres etc.). Proceed as follows: - apply the trailer and tractor parking brakes; - lower the rear stabilisers of the trailer; - align the machine tracks properly with the ramps for a correct climbing; - seek the help of a flagman standing in a position from which he can easily keep in sight the ramps, loading platform, machine and operator; - raise the equipment from the ground only as high as will not interfere with the loading operation, - climb up very slowly keeping the blade or frame close to the trailer platform; do not steer or change direction on the ramps; - position the machine on the platform so as to ensure an optimised load distribution with soft manoeuvres, avoiding sudden starts or stops; - lower the equipment, apply the parking brake and follow the entire procedure recommended for stopping and leaving the machine.

Transportation

TRANSPORTING THE MACHINE When moving the machine on vehicles requiring the removal of the blade, secure the cylinders to the blocking plate inserting the appropriate welded pin on the plate shown into the holes of cylinders, then lock with a retaining nut.

Before moving off, it is necessary to perform the following operations: - apply and bolt, wooden chocks to platform, at the ends of the track chains; safety links or chains on the sides and along the machine to avoid movements during the transport; - check that cab door panels and other mobile port are correctly closed; - apply the signals prescribed by road traffic regulations in the event the dimensions of the machine exceed admissible values.

Unloading The operations and precautions to be followed during the unloading phase are practically similar to those applicable for the loading phase. During the descent it is necessary to keep the equipment as near the ground as practical to prevent slipping or wavering of the machin.

D350M0059

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LONG STORAGE OF THE MACHINE If the unit is going to be inoperative for a long time, comply with the following rules: - Clean the machine completely and lubricate all components equipped with grease fittings.

- Drain the water from the cooling system. If the system is filled with an antifreeze mixture, this operation is not necessary.

- To avoid rusting, it is necessary to refill completely the fuel reservoir.

- Remove the injectors and inject, through the injector holes, some engine oil (the operation should be performed using a syringe, after moving each piston to B.D.C.).

- After injecting the oil, crank the engine a few turns using the starter motor, so as to spread a protective film of oil on the sleeve walls. Then reinstall the injectors.

- If possible, store the batteries in a place where there is no danger of freezing. Recharge them monthly.

WARNING To recharge the batteries, a slow charge is preferable.

Should booster batteries be used, remember to connect both ends of the booster cables in the proper manner (+) with (+) and (-) with (-). Avoid short-circuits of the terminals.

Place the machine in a protected place or cover it with a tarpaulin.

To ensure an adequate protection of the transmission components, at least once a month, the engine should be moved for short distances, so that a film of oil is renewed on the parts.

COLD CLIMATE PRECAUTIONS When ambient temperatures are near 0 °C (32 °F) make sure that the cooling system is filled with an antifreeze mixture, to prevent the danger of freezing., otherwise, replace the water in the system with such a mixture.

Flush the cooling system before adding the antifreeze mixture. Use appropriate specific products for this operation, following the instructions on the container.

WARNING Remove the radiator cap only after the engine has sufficiently cooled-off. With engine inoperative, turn the cap slowly so that residual pressure is released before removing it completely.

Run the engine for some time after adding the fluid, to obtain a correct mixing.

WARNING The use of CASE is recommended. Please find in the table below the percentages of the mixture related to ambient temperatures:

AMBIENT ANTIFREEZE TEMPERATURES Down to: 20 % - 18° C (17.6° F) - 15° C (5° F).11 30 % - 25° C (-13° F)1.

40 % - 35° C (-31° F)1.

50 %

WATER

Do not run the engine of this machine in closed areas without proper ventilation to remove deadly exhaust gases.

Also, use lube oils with a proper viscosity for temperature conditions, as indicated in the lube capacity.

80 % 70 % 60 % 50 %

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STARTING THE MACHINE AT LOW TEMPERATURES The engine starts regularly with temperatures down to - 15 °C (5 °F), coolant at 50 % in the cooling system, engine oil SAE 10W-30 and fully efficient batteries.

Temperature °C (°F)

Activation of engine pre-heating

Fuel

Engine oil

Antifreeze 50%

> 0 °C (32 °F)

No

STD

15W-40

20%

0 to 14 °C (32 °F to 7 °F) -15 to -24 °C (5 °F to -13 °F) < -24 °C (-13 °F)

No

Artic fuel

15W-40

30%

Yes, for 20 s

Artic fuel

10W-30

40%

Yes, for 30 s

Artic fuel

10W-30 (*)

50%

(*) For temperatures below -24 °C (-13 °F) a pre-heating device of the sump oil is available (optional).

STARTING THE MACHINE WITH BOOSTER BATTERIES In the event the batteries are partially exhausted, it is possible to start the engine using booster batteries.

The batteries are easily accessible from the left side of the machine, after removing the panel indicated.

Proceed as follows: - Connect the exhausted batteries to the booster batteries or to the batteries of another machine;

WARNING Should booster batteries be used, remember to connect both ends of the booster cables in the proper manner (+) with (+) and (-) with (-). Avoid short-circuits of the terminals.

- Switch on the electrical system master switch.

- Start normally the engine with the engine starter switch (posit. start).

- Once the engine has started, remove the jumper cables form the machine.

D350M0067

Note - Do not start the engine without batteries, since there is the possibility of damaging the electronics equipping the machine.

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MACHINE OPERATION WARNING Never attempt to operate the machine or its equipment from any position other than seated in the operator's seat. In all circumstance, keep head, body, limbs, feet, hands and fingers within the operator's compartment to minimise the possibility of exposure to eventual external dangers.

Keep all equipment low or in a position ensuring maximum visibility and the control of the machine.

Never use the equipment as a platform to lift personnel nor to carry riders on the machine.

When pulling or towing through a cable or chain, do not start suddenly at full throttle; take-up slack carefully.

Use only designated anchoring points when pulling or towing. Take extreme care when hooking. Make sure that pins and locks are properly secured before pulling.

Keep exposed personnel clear of the equipment (or supplementary attachments) when raised, to avoid possible injuries.

NEVER COAST the machine down grades and slopes with the transmission in neutral or neutralised.

Explore the working area to identify potential risks such as: slopes, overhangs, pits, demolition rubble, fires, ravines, ditches, soft terrain, heavy traffic, crowded parking areas, closed ambients. In such conditions, proceed with extreme care.

Working on slopes is dangerous.

Pay special attentions when working near overhangs.

Always designate a flagman when visibility of the working place, by the operator, is limited.

The flagman must be capable of communicating directly with the operator and the latter must obey the signals.

Be aware of falling walls, falling objects and landslides. Always remember that these dangers could be concealed by brushes, undergrowth etc.

When working in ditches or near high embankments, make sure that the walls are adequately supported, so as to prevent landslides.

Before working in the vicinity of gas lines or other utility lines always contact the nearest utility office before beginning work.

You and the utility representative must jointly determine what specific precautions must be taken to insure safety.

Work in proximity of overhead or underground power lines involves serious body injuries and death hazards, thus special precautions must be taken according to national and local safety regulations.

For the purposes of this Manual you are considered to be working in the proximity of power lines when the attachment or the load raised by machine, in any position, can reach to within the minimum distances specified by local and national safety regulations.

Slow down working speeds. Reaction times could be too slow and distances could be erroneously evaluated.

PRACTICAL OPERATION TIPS It is good practice, when the operator first gets on the machine, to familiarise with its controls.

The operator must perform all the operations the equipment is capable of doing, to develop sufficient "feeling" with the controls and their reaction.

Remember that, when the control levers are in neutral position, the equipment is solid with the machine: this means that it will follow along any movement of the machine.

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A

B Blade pitch A. Loose soil.

B. Hard soil.

243

Dozing When working on grades, it is best to move downhill for better traction. Gradually lower the blade at the beginning of each pass and accelerate the engine fully.

The dozing depth should be such as to allow a load within a short distance (5-6 m /15-18 ft); the full load should, then, just be pushed to the unloading area.

When the ground is hard, getting a full load in a short distance becomes difficult. Under these conditions, instead of pushing a half empty blade towards the unloading area, it is better to return to the starting point and doze more. The load of the second pass is added to the first one and will result in more effective dozing, especially when the unloading distance is considerable.

Working is often made more difficult when large rocks are present and are caught under the blade and pushed forward or lifting the front of the machine, making uneven cuts. This humped effect can be avoided by backing-up with the blade at a lower depth capable of dislodging the rock. If necessary, operate with the moldboard corner tilted.

When dozing in hard terrain and the blade is unable to cut the material, it is advisable to increase the moldboard's draft.

Under these conditions the angle is good for the initial cutting, but during continued dozing the moldboard will pick-up more resistance as the load will push the blade upward. Also, a high pitch reduces the rolling of the material on the blade, increasing the resistance. In hard and rough dozing, the operation might be easier if the blade is tilted; if the work to done is over a considerable area, first use the ripper to break-up the soil.

Road and ditch cutting When cutting steep slopes (for roads or ditches) dozing should begin by cutting the depth of the ditch and tilting the blade to cut the sides with the desired angle.

Care must be taken in monitoring that the profile of the slope is regular, as any correction would be most difficult or, in some cases, even impossible.

Pushing loads When pushing materials have the tendency to spill out the sides of the blade. This problem can be reduced by working repeatedly, when possible, following the same path on successive trips so that the spills forming windrows on both sides prevent a further loss of material from the blade. When pushing loads on a level terrain, keep the blade just touching the ground or at a depth deep enough to skim the surface.

However, if the terrain is uneven it is appropriate to cut a little deeper to compensate the dirt which falls out the sides or in the hollows.

Pushing loads on turns

254

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Steering The D350 Power Steering solves the steering difficulties during the pushing phases of the materials, since it provides constant power to both track chains under all conditions, steering the machine in a natural manner.

Consequently, the traction is increased and an easier manoeuvre by the operator and a smoother ground condition (not ruined by the locking of the track chains).

Grading After the ground has been dozed, the surface might be rough due to small windrows, ground lifted by the tracks or small piles left around turning points. These terrain irregularities must be smoothed over by operating the dozer in reverse and leaving the blade floating. Under these conditions, the blade operates as a harrow, topping off high spots and filling voids, without altering the level.

Grading is often made difficult, and sometimes impossible, because of boulders or other debris, which have to be removed first.

Pushing loads while steering

D350M0169

Spreading When spreading materials, hold the blade slightly above the ground, so that it can slide under the cutting edge, creating an even layer.

If the layer to be spread is of a considerable height, let the blade rest at a height just above the desired layer, since the compactation occurring later will lower the layer, especially when loose materials are involved.

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Moving large rocks and boulders It could become necessary to move boulders with the dozer, during all kinds of works. There are several procedures. In fact a fully loaded blade may be used or the boulder can be pushed directly by the blade by the forward or reverse action of the machine.

The choice of procedures used depends upon several factors: the dimensions and shape of the boulder, space available, type of work being performed. With tractor in forward and fully loaded blade the boulder can be moved by glancing it off the load; in this manner the

rock will roll-off to the nearest side of the machine.

Repeating this type of manoeuvre will eventually edge the boulder from the working area.

The same result can be obtained by manoeuvring in reverse. In such a case, turn the machine so that the side of the blade contacts the boulder, then disengage the steering clutch on the machine's opposite side and lock that side's brake. The dozer will steer, pivoting on the track being braked, while the blade pushes the rock backward and sideways.

Moving boulders with full blade

Moving boulders with full blade

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D350M0170

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Piling To pile materials, two well accepted methods are recommended: Form a pile of material on the first pass, then, with successive passes, accumulate material in front of the established pile.

After forming an initial pile on the first pass push material on successive passes to the top of the established pile and make it fall over the opposite side.

Sometimes, instead of piling it, the material is pushed to fill a ditch. In this case, since the filling material tends to let the machine sink it is appropriate to build a small step before reaching the edge of the ditch, raising slightly the blade.

This step improves safety since, proceeding with subsequent passes, the front of the tracks shall allow, in steps, to protrude over the original edge.

Pile levelling If the pile is not too bulky or hard, it can be levelled by dozing the blade into it, than it can be spread or re-piled somewhere else.

If the pile is too large or too hard to be spread with a single pass, or it must be spread in different directions, the first pass may be made grading one side to ground level, repeating the cuts, as required from different angles, on the remaining pile. If the dozing leaves high walls which could fall on the machine, turn the blade from time to time toward the wall and with it raised, push the mound down.

If the dozer is unable to cut a pile because of its steep sides, a ramp can be built by pushing into one side with the blade raised and then backblading with a down pressure.

The levelling of a pile can also be made by dozing a centre slot and continually cut away the top. This method is always recommended when the pile is excessively high and it is the only possible when there no access to the side of the pile.

The centre slot with must be quite greater than the width of the blade, thus allowing a protective border to be built preventing the dozer from getting trapped, once the digging reaches a certain depth or boulders and earth or the walls collapse on the machine.

Also, a narrow cut does not allow the machine to properly manoeuvre and dispose of rocks or roots encountered while dozing.

Piling

Cutting a pile with side cuts

A

B

251

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253

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53

CENTRE SLOT DOZING OF PILE

CUTTING A PILE WITH CENTRE SLOT

D350M0069

D350M0171

Going over obstacles Any obstacle (logs, roots, ridges etc.) must be removed, if possible, or avoided. If this is impossible, crossing must be done very slowly and at an angle so that one track will reach the top and starts to descend on the other side, while the track is still climbing. This method of operation slows down the dropping and decreases the shock against the ground, which could cause damages to the machine and the operator.

If the obstacle is made of soft material it is good practice to sharply turn the machine while crossing, so that the track edges will help cut the material down.

When the dozer is operating in heavy work, the tracks often spin, forming small pile of earth near their rear end. Under these circumstances, when reversing direction, it is good practice to move sideways as much as required, to avoid the tracks hitting these windrows.

A ditch may be crossed without danger only if its width is not greater than 1/3 the track length and if the track movement will not collapse the banks. To prevent the latter from occurring, move the machine over wooden planks, even if not very strong.

Hill work Dozing on side slopes requires special care. Even when the dozer appears to have sufficient margin of safety, the sudden running over an unseen obstacle by the upper track or the lower track moving into a hollow, the machine could tip over.

Chances of this occurring are lessened when the machine is dozing as it is moving along using the load as an additional stabiliser. Also, the machine is stabilised by the low windrow.

Dozing on frozen slopes is hazardous as the grousers act as skates causing the machine to slide uncontrolled downhill. There is a danger of tipping over rocky slopes as well, especially shale with beds parallel to the surface and on soft fills where the lower track sinks deeper than the upper one.

If the machine starts to slowly roll over, sometimes it is possible to prevent the trouble by quickly turning downhill, lowering the blade at the same time.

Slopes too steep to be safely worked sideways, sometimes, may, be dozed by operating the machine along it diagonally.

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On the other hand, the machine overcomes safely steep slopes downhill. Steering is apt to be tricky on steep slopes, whether up or down, because when one steering clutch is released, the track on that side slips and turns faster and the machine pulls to this side under gravity and might place itself transversally of the grade with the consequent danger of tipping over.

Digging and pushing should be done downhill to obtain a better pushing effort. This is particularly advantageous when the ground is very tough, even if the soil must be pushed up the hill. When digging is limited to a given area on the slope and material must then be pushed downhill, it is a good technique to drop to or three loads at the end of the cut, then pushing most of the pile down in a single pass.

A

B

D350M0070

Notching a shelf on side slopes, travelling and unloading downhill.

Grading on side slopes If a slope must be notched (i.g. road cuts in hillsides) it will be necessary to first build a shelf. Set the blade in tilt position opposite to the slope so the dirt moved will slide downhill and help in building up the shelf. If the slope is too steep to work effectively with tilted blade, proceed in one of the following ways: Push the material downhill to form a shelf as in (A), so the dozer can start level cuttings, as in (B).

Start cut transversally to the slope, then turn at the same time to unload downhill. This will provide a more level shelf, which can than be enlarged or graded off as required.

Dig a strip transversally to the slope, then proceed with a series of parallel cuts, always operating the higher track in the previous strip.

In each case the best possible advantage should be taken with the soil configuration. When natural aids are not available, the machine can be moved onto boards or other lifts to start the cut at the desired slope.

252

Notching a shelf on side slopes, travelling across the slope, steering and unloading downhill.

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55

Clearing In land clearing of brush and small trees, clearing can be accomplished in one pass, with the blade cutting slightly below the ground. This will allow the blade to shear the roots. It may be necessary to back up occasionally to clear the roots from the cutting edge.

Roots under the edge cause the blade to ride up and waste machine power.

When uprooting a tree, first place the blade fully raised against the trunk, then engage first gear forward and push with the engine fully accelerated. If the tree resists, shift the transmission to neutral then into first forward again; repeat a few times. If the tree does not fall quickly, make a few passes to cut some of the outlaying root structure. To improve the pushing, build-up an earth ramp opposite the direction the tree is to be felled, so that the blade can touch the tree in a higher position. Remember, when the tree begins to fall, to back-up rapidly, so that the uplifting roots will not catch under and tilt over the machine.

OPERATING TIPS Before beginning to doze, the moldboard should have proper tilt and pitch for the work to be done. While dozing, always use a speed adequate to obtain best results from the machine.

To get smooth cuts, (meaning regular surfaces) the operator should closely watch the ground pattern and when the machine noses down or up, he must react swiftly with the control lever to raise or lower the blade, as required.

Note - Keep the cutting edges in good conditions.

RIPPER The ripper is supplied as an optional.

To raise or lower the ripper, move the control lever backward or forward, respectively. To stop the ripper in the desired position, release the control lever which will return to hold position in neutral.

The ripper is equipped with shanks/teeth removable from the relevant frame, as required. Thus it is possible to work with all the teeth or, in particularly heavy conditions, with the central one only.

Engage FIRST gear for all ripping operations. Use more shanks rather than increasing travel speed.

To obtain the best results, the following considerations should be kept in mind:

D350M0172

Breakage. The soil can be broken in fine or coarse pieces, as required. It depends on work depth, number and shape of the shanks and pass spacing.

Breakage must be established on the basis of the subsequent use of the ripped material. As an example, if the material must be spread and back bladed, a finer breakage is required than when it must be dozed away.

Dozing a shelf on side slopes by successive cuts across the slope.

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Work depth. It is good practice to work to maximum depth permitted by the available power and traction of the machine, taking into account the breakage desired.

Note that: - With strongly cohesive materials, such as clay, tuff, marl, gypsum, sandstone, calcite and other compact soils, the greater the depth the coarser the breakage; - With stratified materials, such as limestone, schist, gneiss, travertine etc., the greater the depth the finer the breakage.

WARNING When not in use, always carry the ripper in full raise position during operation and lowered to the ground when parked.

Number and shape of teeth. The number of teeth depends on the power required of the machine in relation to the desired breakage. Generally, the greater the number of teeth, the finer is the breakage.

Exceptions are stratified materials where large slabs are lifted when working with more than one tooth.

As regard tooth shape, the partially curved type can be considered a universal standard. Curved teeth facilitate the lifting and to some extent, also the turning over of the material.

D350M0023

Spacing between passes. It must be such as to complete the breakage of the previous pass, always in relation to the desired fineness. Generally, spacing must be less than work depth.

In plastic soils, e.g. gypsum (in which the implement makes just a cut) or in hard soil (in which the working depth must be reduced) criss-cross passes may be required.

Notice - Do not reverse or steer while the teeth are into the ground. Torsional forces could breake the teeth.

Speed and direction. It is good practice not to exceed 1.5 to 2 km/h (1 to 1.2 mph) to prevent harmful shocks to the implement and excessive wear. When working on soft material, it is preferable to increase the depth rather than the speed. In the case of stratified materials, work crosswise and against the vein; on the contrary, if the material is landslipping. work in the direction of the landslide.

Material heaping. Generally it is convenient to heap material crosswise to the ripping direction in order to keep the transport distance to a minimum and to smooth out any irregularity.

D350M0173

WARNING To make sharp turns, raise the ripper teeth off the ground, to prevent damages. Only wide turns or small directional corrections are permissible when the ripper is sunk-in.

With surfaces with deep depressions, first make passes to level the ground, prior to ripping, to avoid breaking the shanks.

Notice - The shank must always be positioned as indicated in the figure during transportation.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

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57

CAB SAFETY CAB

Do not climb or leave a machine while in motion.

Do not jump off the machine.

Safety cab with roll-over protection structure (ROPS) and against falling objects (FOPS) safegarding the operator.

The cab has two doors which can be open 90° (to be used only to enter the cab) assisted by gas filled cylinders and two hinged side panels, with lock in maximum open position, providing enough ventilation and reducing the inlet of dust. It is amply glazed and provides maximum operator comfort under whatever climatic condition.

Do not climb nor leave the machine while transporting equipment or other materials.

When climbing or leaving the operator's compartment, do not use any control as a grabbing point.

Note - The key provided with the machine is universal, i.e. it operates the cab door locks, the side panels and the engine starting switch.

WARNING The protection offered by ROPS may be prejudiced by any damage or structural change.

Inspect your seat belt periodically for signs of fraying, wear or other weaknesses leading to failure.

DOOR The door is open by the handle indicated in the figure, after opening its locks (incorporated in the handle itself) with the appropriate key.

D350M0072

Mount and dismount the machine only in the points where steps and/or handrails are available.

Before mounting the machine clean and inspect steps and handrails.

Mount and dismount the machine facing it.

Keep three contact points with handrails and steps.

Note - Three contact points can be two feet and one hand or two hands and one foot.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

D350M0092

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3550

To open the door form inside the cab, press the handle button indicated in the figure.

To open from inside, rotate the handle as indicated in the figure.

D350M0174 D350M0026

It is possible to keep the side doors open while the machine is operating.

REAR WINDOW

WARNING If replacement of glass is necessary, be sure to use safety glass as spare.

Do not strike the glass to remove it from cab parts.

Glass may shatter and cause personal injuries.

D350M0024

To free the sliding of the window, actuate the locking device, pressing button A to full stroke.

Note - Windows must always be kept clean to ensure good visibility.

It is recommended to use specific window cleaners and dust free cloth to avoid scratching the glass and impair transparency.

A D350M0025

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

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59

CAB LIGHTING

CAB INSIDE HEATING AND VENTILATION

The ceiling lights are located on the top of the cab.

Switch M in raised position activates fixed light L, in lowered position it actuates movable light P. In central position both lights are OFF.

By turning knob A air taken from the outside or from inside the cab (recirculation) is pushed into the cab.

Place knob A on recirculation when a quick heating of the cab is required.

Setting knob B adjusts the air temperature in the cab.

Turning knob C the fan is activated and its speed is adjusted.

M L P

C

D

D350M0175

A

12 VOLT SUPPLEMENTARY RECEPTACLE (On cab only) Supplementary power receptacle P, located in the rear left part of the cab, can be used to power an eventual refrigerator to be located in the compartment behind the seat or to power a portable phone.

T P

B

D350M0094

A. Air recirculation adjustment - B. Temperature setting - C. Demisting fan - D. Air conditioner (upon request).

Demisting and defrosting For a fast demisting or defrosting of the front, side and rear windows, proceed as follows: - set fan to top speed with switch C; - move knob B to stroke-end (clockwise).

Suitably adjust directional outlets in the cab, directing the hot air to the windows.

C D350M0093

Phone holder (T) to be used to store a portable phone, during battery charging phase as well.

B

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

D350M0095

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AIR CONDITIONER (optional)

To replace the side and rear window blades, proceed as for the front wiper.

The air conditioner is turned On by switch D. To adjust the cooling or heating inside the cab set lever B as described for the machine without air conditioner.

Note - The air conditioner is inoperative when the engine is not running, since it is driven by the engine.

Make sure air conditioner switch D is OFF before starting the engine.

Always cut-off the air conditioner with switch D before stopping the engine.

Keep doors and windows closed to obtain a correct air conditioning of the cab.

It is recommended to avoid attempting repairs on the air conditioning system by unskilled personnel.

D

S

D350M0097

If the spray pattern of nozzles S is defective, clean the holes with a needle.

If necessary, re-adjust the spray nozzle orientation so that the fluid will strike the windshield uniformly.

Note - Always keep windows clean to ensure good visibility.

It is recommended to use specific window cleaners and dust free cloth to avoid scratching the glass and impair transparency.

WIPER Should visibility be unsatisfactory as a result of faulty wiper blade operation, clean rubber blades using a specific detergent or alcohol. Should faulty operation persist, change the blades.

For the front wiper proceed as follows: - tilt out complete arm C from glass; - loosen screws D and remove the blade.

Check and top-up as required, the level of the windshield washer fluid in its reservoir, reached by opening the rear left panel in the battery compartment.

C

D350M0096

D350M0098

Note - Use DP1 detergent diluted with water, in relation to ambient temperatures. A 50/50 mixture of detergent and water is not freezing down to -10 °C (15 °F). Below this temperature, use pure detergent only.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

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61

MAINTENANCE

MAINTENANCE SAFETY WARNINGS

Do not allow unauthorised personnel to perform any maintenance operation. Study carefully this Manual before starting, operating, maintaining, fuelling or servicing the machine.

Always place the starter switch in lock position prior to perform cleaning, repair or any other intervention on the machine and after parking it, to prevent personal injuries.

Never perform lubrication, repair or adjusting operations with engine running, except as specifically called for in this Manual, to avoid being caught by moving parts or being crushed by the machine.

Never use gasoline, solvent or other flammable fluid to clean parts. Use exclusively qualified, non-flammable, non-toxic commercial solvents.

Follow the instructions of chapters "Stopping the machine" and "Stopping the engine" of the Operation and Maintenance Instruction Manual, before lubricating or performing any other intervention.

Always lower the equipment to the ground and release pressure from all systems prior to proceeding with any maintenance or repair work.

The equipment and attachments can be lowered by moving the control lever with engine running or inoperative.

Every time components and groups of the machine must be removed, be sure the jacking point used on the machine is appropriate for the load to be applied. Be sure the support of the jack at the machine and under jack is appropriate and stable. Transfer load to appropriate blocking as a safety measure, before proceeding with service or maintenance work.

Never work over or under a machine or its components being supported only by jacks or other lifting devices, in accordance with current national and/or local regulations.

Never work under or near the equipment of a machine or its components nit adequately supported and blocked.

DO NOT USE HANDS to search for suspected pressure leaks. Fluid escaping under pressure nd can have sufficient force to penetrate the skin.

Use a piece of cardboard or wood When servicing or maintenance require access to areas that cannot be reached from the ground, use a ladder or step platform that meet local and national regulations, to reach the service point.

If such ladder or platform are not available, use the machine hand holds and steps as provided.

Perform all service or maintenance carefully.

Use only grounded auxiliary equipment to power heaters, battery charges, pumps or similar equipment, to reduce the risk of electrocution.

Warn all personnel which could be performing repairs or in the vicinity of the machine prior to starting the engine.

Keep hands, limbs and face away from loosen connections of pipes when performing efficiency or leakage tests of injectors or systems. Also, wear prptective glasses with side shields.

NEVER ALIGN HOLES WITH FINGERS OR HANDS; always use appropriate aligning tools.

Do not use an open flame as a light source to look for leaks or for inspection anywhere on the machine, due to the presence of flammable fluids.

Always place the safety lever in lock position.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

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MAINTENANCE OPERATIONS The service intervals indicated herein refer to normal operating conditions; during the initial break-in period and under particularly severe conditions, other intervals may be needed.

Use this list to co-ordinate maintenance scheduled at the same intervals.

Before proceeding with any service operation, lower the equipment to the ground and shut-off the engine.

It is advisable to change oil immediately after stopping the machine as warm oil will drain out more easily, along with any suspended deposit or scale.

Before and after lubrication operations, accurately clean all fittings, covers, plugs to prevent dirt from entering the system.

Lubrication is an essential part of preventive maintenance, controlling to a great extent, the useful life of the unit. Different components require different lubricants, and some components in the unit require more frequent lubrication than others. It is important that the instructions regarding types of lubricant, and the frequency of their application, be followed. periodic lubrication of moving parts reduces to a minimum, the probability of mechanical failures.

Note - Do not tamper with the fuel injection equipment setting, otherwise the Manufacturer will void all warranties.

WALK AROUND INSPECTION (to be performed daily) By quickly responding to initial troubles, required maintenance and downtime will be reduced. It is recommended to check the machine each day, before beginning work or to make a walk around inspection at the completion of each day to check: A. Side final drive oil leakages B. Ineffective or broken instruments C. Engine oil/coolant leakages

D. Hydraulic system leaks and damaged hoses E. Caked dirt on radiator grill F. Blade wear or damage H. Track rollers and idler wheel oil leakages I. Track tensioner grease leakages L. Caked dirt and mud on track frames M. Loosen track shoe fasteners O. Safety devices, steps and hand grabs in perfect working conditions.

C

B

O D

H

E

M

F

A

L

I G D350M0001

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

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63

LIST OF ON-BOARD TOOLS

- Double head wrench

mm 24 + mm 27

- Double head wrench

mm 19 + mm 22

- Double head wrench

mm 13 + mm 17

- Double head wrench

mm 12 + mm 14

- Double head wrench

mm 8 + mm 10

- Allen wrench

mm 12

- Allen wrench

mm 10

- Allen wrench

mm 8

- Universal pliers - Hammer

0.5 kg

- Flat screwdriver - Phillips screwdriver - Grease gun with hose extension - Oil and grease gun

Complying with standard ISO 4510.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

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MAINTENANCE TABLE EVERY 10 HOURS WORK (DAILY) 1 Engine oil: check oil level

EVERY 1000 HOURS WORK 21 Fuel filters: replace filters

2 Torque converter/transmission hydraulic circuit: check oil level

22 Bevel gear set/brakes: change oil and suction filter

3 Radiator: check coolant level

23 Torque converter/transmission hydraulic circuit: change oil 24 Propeller shaft: grease

EVERY 50 HOURS WORK 4 Equipment hydraulic system: check oil level 5 Fuel tank: draining condensation 6 Blade cylinder articulations: grease articulations 7 Ripper and front equipment linkages: grease linkages 8 Cab ventilation air filter: clean filter 9 Bevel gear set/brakes: check oil level

25 Batteries: check level of electrolyte 26 Final drives: change oil 27 Air cleaner: replace cartridges 28 Transmission/torque converter suction filter: clean filter 29 Transmission/torque converter breather: replace 30 Bevel gear set/brakes breather: replace 31 Fuel injectors-engine valves: check calibra- tion of injectors 32 verificare la taratura degli iniettori 33 Engine breather: clean

EVERY 250 HOURS WORK 10 Final drives: check oil level 11 Engine oil: change oil (1) 12 Idler: lubricate 13 Fan-alternator-water pump: check conditions and sagging of belt

EVERY 2000 HOURS WORK 34 Equipment hydraulic circuit: change oil

14 Track frame pivot shaft: grease articulations 15 Cab ventilation air filter: replace filter AS REQUIRED 35 Engine air cleaner clogged: clean cartridges EVERY 500 HOURS WORK 16 Engine oil filter: replace filtering cartridge (1) 17 Bevel gear set/brakes return filter: replace filtering cartridge

36 Oil filter on equipment hydraulic circuit return: replace filtering cartridge 37 Fuel filters: draining condensation

18 Transmission/torque converter delivery filter: replace filtering cartridge 19 Oil filter on hydraulic circuit return: replace filtering cartridge 20 Engine coolant filter: replace filtering cartridge

OTHER OPERATIONS TO BE PERFORMED AS REQUIRED 38 Undercarriage: checking the sagging of the track chains

(1) These service intervals must be performed at 100 hours if the sulphur content exceeds 0.5%.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

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EVERY 10 HOURS WORK

2.

ENGINE:

Open the right upper panel. With the engine inoperative since at least 15 minutes and the machine on flat ground, check that the oil level is near the upper mark etched on dipstick 1 attached to the cap.

If required, top-up with oil through the filler neck checking the level after operating the engine at low idle for a few minutes and shifting the transmission a few times.

1.

ENGINE OIL: Check oil level

Open the upper panel of the engine compartment.

With the machine on flat ground and the engine inoperative since at least 5 minutes, check with the appropriate dipstick A that the oil level is between the two marks indicated.

Top-up with oil through filler neck B as required, to reach maximum level, taking care that this mark is not exceeded.

TORQUE CONVERTER/TRANSMISSION HYDRAULIC CIRCUIT - Check oil level

1

WARNING Never operate the engine with the oil level below the lower mark (MIN).

D350M0100

A

1. Cap with dipstick

B

3.

RADIATOR Check coolant level

Open the upper panel of the engine compartment and check the level of the engine coolant through level indicator A. The coolant level must not decrease below the indicator.

If required, top-up with coolant through the filler neck, with the engine inoperative since at least 1 hour, to release the pressure inside the circuit.

D350M0099

A. Engine oil dipstick B. Engine oil filler neck.

A

MAX MIN

D350M0101 D350M0176

Oil dipstick (A)

The correct oil level must be included between the two marks.

It is recommended to fill the circuit with PREMIUM ANTI-FREEZE liquid diluted 50% with water, for maximum protection against: - anti-freeze action to -40 °C (-40 °F); - formation of calcium scale; - boiling during hot climate up to +110 °C (230 °F) - corrosion of metallic materials.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

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EVERY 50 HOURS WORK 4.

5.

EQUIPMENT HYDRAULIC SYSTEM Oil level check

Check that the oil level is included between the middle of gauge B and maximum level.

This check must be performed with the machine on flat ground, the equipment resting on the ground, cold oil and engine operating at low idle.

FUEL TANK Draining condensation

Drain the impurities (water and deposits) from the bottom of the tank collected by the draining well, from the lower side of the machine.

B

A D350M0103

D350M0102

If the level appears through lower gauge A, remove the filler cap indicated and top-up with oil through the filler neck. The level must appear through upper gauge B.

For this purpose, open the valve indicated in the figure and let the liquid flow from the pipe into a container, until clean fuel runs-out. Drain more frequently when operating in humid conditions, cold climate and considerable temperature changes. If required, clean the mesh filter in the fuel filler neck. When the temperature exceeds 0 °C (32 °F) the draining must be performed prior to starting the engine. When temperatures are below 0 °C (32° F) the draining must be done at the end of the work-shift, since frozen water cannot be drained.

D350M0104

Fuel draining valve

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

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EVERY 50 HOURS WORK 6.

BLADE LINKAGE CYLINDERS Greasing the linkages

Pump grease into the grease fittings for the lubrication of the blade articulations. The grease fittings indicated by arrows are located on the opposite side of the machine, as well.

D350M0071

8.

CAB VENTILATION AIR FILTER - Clean filter

To reach the filter, open the panel under the cab on the left side of the machine. Remove the four retaining screws V indicated in the figure and remove filter F.

D350M0059

7.

Check the filter. If clogged proceed with the cleaning, as described here below: - tap slightly the filter on a flat surface, with the holed portion downward; - blow it with clean and dry compressed air. Move the air jet up and down the plaits of the elements, until all dust is eliminated; - reinstall the filter.

RIPPER AND FRONT EQUIPMENT LINKAGES - Greasing the linkages

Notice - Keep the jet of compressed air at a certain distance from the filter.

Pump grease into the grease fittings for the lubrication of the ripper articulations.

Black arrows indicate that the grease fitting can be seen from the opposite side.

Note - Before installing the filter, clean the inside of the canister.

V

F

D350M0105

D350M0177

Pump grease into the grease fittings for the lubrication of the front equipment articulations.

WARNING When using compressed air for cleaning parts, use safety glasses with side shields or goggles to minimise the danger of personal injuries caused by flying particles. Limit pressure to 2 bar, in accordance with local and national regulations.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

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EVERY 50 HOURS WORK 9.

11. ENGINE OIL - Changing the oil

BEVEL GEAR SET / BRAKES - Check oil level

Check the oil level with the machine on a flat ground and the engine inoperative since at least 5 minutes.

To reach the oil dipstick, open the panel indicated on the right side of the machine. Loosen plug 2, remove the dipstick underneath and check that the oil level is included between the mark MIN and MAX etched on the dipstick itself. top-up with oil, as required, through the filler neck.

Open the left front panel of the engine compartment and drain, with hot engine, the oil through lower plug T, removed using a 8 mm Allen wrench. To facilitate the draining, remove oil filler cap B. Once the oil stops flowing, refill with engine of the prescribed type and grade (see "TABLE OF CAPACITIES") as follows: - retighten draining plug T and refill with fresh oil through filler neck B until the maximum level marked on dipstick A is reached; - operate the engine for a few minutes; - cut-off the engine and top-up to maximum level, after a few minutes.

2

D350M0027

T

EVERY 250 HOURS WORK 10. FINAL DRIVES - Check oil level

D350M0060

Check the oil level reaches plug A indicated (a level plug on each final drive). Top-up, as required, through plug B.

T. Oil draining plug

B A B

A

D350M0028

A. Oil level plug - B. Oil filler plug.

D350M0106

A. Oil dipstick - B. Filler neck.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

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EVERY 250 HOURS WORK

Pump grease into track tensioner lubrication fitting 1 until grease gets out valve 2.

WARNING 2

Do not run the engine of this machine in closed areas without proper ventilation to remove deadly exhaust.

Be sure exposed personnel in the area of operation are clear of the machine before moving it or its attachments. Walk completely around the machine before mounting. Sound horn.

1

Note - In the event the fuel used has a sulphur content exceeding 1%, the engine oil must be changed every 150 hours.

D350M0062

WARNING Never use gasoline, solvent or other flammable fluid to clean parts. Use exclusively qualified, nonflammable, non-toxic commercial solvents.

13. FAN - ALTERNATOR - WATER PUMP BELT Check the condition and sagging of the belt WARNING

12. TRACK CHAIN TENSIONER - Lubricate Remove the cover secured to the track frame, indicated by the arrow, to reach the grease fitting.

Never check the tension of belts with engine in operation. Be especially aware of the presence of fans.

Do not place the head, body, limbs, feet or hands near belts or rotating fans. be especially aware of blowing fans.

Open the right and left panels of the engine and make a visual inspection. In case of cross-way cracks on the belt are acceptable.

Cross-way cracks combined with longitudinal cracks, flaking and breaks are not acceptable. if so, replace the belt.

Acceptable condition Belts to be replaced

D350M0061

D350M0178

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

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EVERY 250 HOURS WORK

14. TRACK FRAME PIVOT PINS Greasing the linkage

Measure the tension on the long side of the belt that by applying a finger pressure, should sag between a minimum 9.5 mm and a maximum 12.7 mm (3/8 ÷ ½ in).

A more accurate check can be done using a belt dynamometer applied in the same middle position of the longest side of the belt.

The tension limits, in this case, should be included between a minimum of 36 daN and a maximum 49 daN.

Pump grease into the track frame pivot lubrication fittings. The fitting indicated by the arrow is also located on the opposite side of the machine.

D350M0031

D350M0029

Belt tension check

15. CAB VENTILATION AIR FILTER Replacing the filter Remove the filter as indicated in item 8 and replace it.

Replacing the belt Use a lever to move the tensioner and remove the belt.

To install a new belt, place it on the fan and crankshaft pulleys, lift the tensioner and complete the loop of the belt, as illustrated in the figure. Also, check that the nut securing the tensioner is tightened to a torque of 4.7 daNm.

D350M0030

Removal of the belt

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

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EVERY 500 HOURS WORK

17. BEVEL GEAR SET/BRAKES RETURN FILTER Replacing the filtering cartridge

16. ENGINE OIL FILTER Replacing the filtering cartridge Open the upper and lower panel engine t located on the left side of the machine.

Open the left panel of the engine compartment and remove filter F1 from the relevant support. Replace it with a new one and tighten it to 3.5 - 4 daNm.

F1

D350M0107

Engine oil filter

The cartridge must be replaced at the prescribed intervals, since in the event of clogging, the oil circulated is not filtered.

Replace the filter proceeding as follows: - clean the contact area of the filter and remove it; - fill the new filter with fresh oil and lubricated the relevant gasket; - hand tighten the filter. Once the gasket contacts its seat on the cylinder block, tighten ¾ turn further.

D350M0108

18. TRANSMISSION/TORQUE CONVERTER DELIVERY FILTER Replacing the filtering cartridge Open the left panel of the engine compartment and remove filter F2. Replace it with a new one.

F2

D350M0109

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

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EVERY 500 HOURS WORK

20. ENGINE COOLANT FILTER Replacing the filtering cartridge

19. RETURN FILTER ON THE EQUIPMENT HYDRAULIC CIRCUIT Replacing the filtering cartridge Proceed as follows: - clean cover L of the filter and the surrounding area; - remove the cover, remove nut S and extract filter F. Replace it with a new one - check that the oil level is included between maximum level sight gauge B and minimum level gauge A. This check must be done with the machine on flat ground, cold oil and the engine operating at low idle; - top-up, as required, through filler neck D. D

Open the upper panel of the engine compartment.

DANGER Fluid under pressure. Prior to removing the cap, turn it slowly to release the pressure.

To prevent burns, do not open the radiator cap with a hot engine.

WARNING Do not run the engine of this machine in closed areas without proper ventilation to remove deadly exhaust.

L

Turn slowly the radiator cap, with engine inoperative since at least 1 hour, to release the pressure trapped inside the circuit.

B

A

D350M0110

D350M0101

F

Remove any dirt or scale accumulated between the support and the filter. Close valve V on the filter support.

S

D350M0179

WARNING Never use gasoline, solvent or other flammable fluid to clean parts. Use exclusively qualified, nonflammable, non-toxic commercial solvents.

Do not run the engine of this machine in closed areas without proper ventilation to remove deadly exhaust.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

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EVERY 500 HOURS WORK

V

D350M0112

D350M0111

Remove filter F preventing any spill of liquid. Prior to reinstalling a new filter, clean the gasket contact area on the support.

Install the new filter after smearing a thin film of oil on the gasket, until it touches the seat on the support.

Then, tighten it by hand ½ turn further.

Reopen the valve on the filter.

Start the engine and check that there are no leakages.

Cut-off the engine and check the coolant level.

1

EVERY 1000 HOUIRS WORK D350M0113

21. FULE FILTERS - Replacing the filters Open the left panel of the engine compartment.

WARNING Never use gasoline, solvent or other flammable fluid to clean parts. Use exclusively qualified, nonflammable, non-toxic commercial solvents.

When using compressed air for cleaning parts, use safety glasses with side shields or goggles to minimise the danger of personal injuries caused by flying particles. Limit pressure to 2 bar, in accordance with local and national regulations.

22. BEVEL GEAR SET AND BRAKES Changing the oil and the suction filter Draining the oil Place a container of at least 200 litres (53 US Gal) under the transmission housing.

Remove the plugs indicated and let the oil drain completely.

Retighten the draining plugs after washing them.

Clean the base of the support and the surrounding area.

Remove the filters indicated in the figure.

Clean the filter gasket seat area of the support with a dry rag.

Replace gaskets "1", fill the filters with clean fuel and smear a thin film of engine oil on the gasket, then install the filters on the support until touching the seat.

Then, turn ½ turn further.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

D350M0114

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EVERY 1000 HOURS WORK Replace the suction filter. Remove the filter indicated in the figure and replace it with a new one. Check the level and top-up as required.

WARNING Do not run the engine of this machine in closed areas without proper ventilation to remove deadly exhaust.

23. TORQUE CONVERTER/TRANSMISSION HYDRAULIC CIRCUIT - Changing the oil Draining the oil Drain the oil from the bottom of the machine with hot transmission, in a container of at least 75 litres (18.8 US Gal).

D350M0115

Oil refilling Fill with oil up to the prescribed level, indicated by the mark on dipstick 2.

Start the engine and let it run at about 1000 rpm.

Actuate the steering clutch control levers a few times.

Cut-off the engine and, after a few minutes, remove the cap and check that the oil level reaches the upper mark etched on the dipstick. Top-up with oil through the filler neck, as required.

D350M0114

To facilitate the draining, open the panel on the right of the cab and loosen cap 1 of the transmission oil filler neck.

1

2

D350M0027

MAX

D350M0100

MIN

D350M0180

Dipstick 2 The correct oil level must stay within the two marks.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

3550

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EVERY 1000 HOURS WORK

25. BATTERIES Checking the electrolyte level

Refilling of oil Retighten the plug, after cleaning it accurately, and fill with oil through filler neck 1 up to the upper mark etched on the transmission dipstick.

Start the engine and let it run at low idle for a few minutes. Actuate the gearshift lever a few times.

Cut-off the engine and, after a few minutes, top-up the circuit with oil, checking dipstick 1.

WARNING Do not run the engine of this machine in closed areas without proper ventilation to remove deadly exhaust.

Be sure exposed personnel in the area of operation are clear of the machine before moving it or its attachments. Walk completely around the machine before mounting. Sound horn.

WARNING Batteries contain SULPHURIC ACID. Protect the eyes when working on batteries, to prevent the effects of spraying acid solution.

In the event acid contacts the skin, eyes or clothing, RINSE IMMEDIATELY WITH WATER FOR AT LEAST 15 MINUTES. Seek immediate medical help.

Remember to connect both ends of the booster cables in the proper manner (+) with (+) and (-) with (-). Avoid short-circuits of the terminals.

BATTERY GAS IS HIGHLY FLAMMABLE. Extinguish all smoking materials and open flames prior to checking, filling or checking batteries.

Never check charge by placing metal objects across the posts.

Open the left rear panel indicated.

Check that the electrolyte level reaches the reference mark, on the side of the battery.

To top-up the electrolyte level with de-mineralised water.

24. PROPELLER SHAFT - Greasing Pump grease (three or four strokes) into the appropriate grease fittings to lubricate the spiders.

Note - The operation must be performed more frequently when operating in very dusty conditions.

Propeller shaft

D350M0117

D350M0116

Notice - To keep the batteries efficient, comply with the following rules: - do not keep lights ON for prolonged periods with engine inoperative or at low idle; - for short stops, it is preferable not to cut-off the engine, but let it run at low idle, since a starting would require a considerable supply of power by the batteries; - make sure that the cable terminals are properly secured on the battery posts and that they are protected by a slight film of pure vaseline; - keep batteries clean, especially the upper side; - prior to any intervention on the terminals, disconnect the grounding cable.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

76

3550

EVERY 1000 HOURS WORK

27. ENGINE AIR CLEANER Replacing the cartridges

26. FINAL DRIVES - Changing the oil - Stop the machine with plugs P indicated in the figure in the bottom position (vertically).

- Remove draining plugs P and S. - Remove plugs A and B (one per final drive) and let the oil drain. After tightening plugs S and P, refill with new oil through filler plug B until it appears through plug A. - Repeat the operation on both sides.

Open the left panel of the engine compartment.

Remove the cover from canister C freeing hooks D. Extract the two co-axial filtering elements. one inner B and outer A, and replace them.

Before installing new elements, clean the inside of canister C.

C B

D

A

P

D350M0028

D350M0121

A

B S

D350M0182

WARNING D350M0181

A. Oil level plug - B. Filler plug - P. Draining plug S. Draining plug.

When using compressed air for cleaning parts, use safety glasses with side shields or goggles to minimise the danger of personal injuries caused by flying particles. Limit pressure to 2 bar, in accordance with local and national regulations.

Retighten plugs A and B and repeat the operation on the other side.

Important - To reduce machine down time, it is good practice to maintain an appropriate stock of spare parts of the prescribed type, obtainable from the Sales Organisation.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

3550

77

EVERY 1000 HOURS WORK

29. TRANSMISSION/TORQUE CONVERTER BREATHER - Replacement

28. TRANSMISSION/TORQUE CONVERTER SUCTION FILTER - Cleaning the filter With the machine on flat ground and hot transmission oil, remove the draining plug indicated in the figure. Let the oil drain, disconnect the suction pipes and remove the filters cover (with filters). Clean the components of the filters (and canisters) and reinstall them. Connect the suction pipes. Reinstall the draining plug.

Fill oil through the filler neck, up to the upper mark on the dipstick.

Start the engine, let it run at low idle for a few minutes and actuate the gearshift lever a few times.

Cut-off the engine and, after a few minutes, top-up the oil level in the circuit checking the dipstick.

Open the left panel of the engine compartment to reach breather A indicated in the figure.

A

D350M0035

Remove any trace of oil or dirt from the transmission breather: remove the breather. Clean it accurately with a non-toxic and non-flammable solvent. Dry and reinstall it in its seat.

WARNING

D350M0068

Never use gasoline, solvent or other flammable fluid to clean parts. Use exclusively qualified, nonflammable, non-toxic commercial solvents.

WARNING Do not run the engine of this machine in closed areas without proper ventilation to remove deadly exhaust.

Be sure exposed personnel in the area of operation are clear of the machine before moving it or its attachments. Walk completely around the machine before mounting. Sound horn.

AVOID POLLUTING THE ENVIRONMENT Dispose of batteries, hydraulic fluids, lubricants and coolants, filtering elements and absorbing materials impregnated by these fluids, in compliance with current national regulations, classifying these materials as polluting, noxious and dangerous waste.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

78

3550

31-32. FUEL INJECTORS-ENGINE VALVES Check calibration of injectors

EVERY 1000 HOURS WORK 30. BEVEL GEAR SET AND BRAKES BREATHER - Replace Open the right rear panel to reach breather B indicated in the figure.

B

DANGER Keep hands away from the tip of injectors when checking the calibration. Fuel finely sprayed under pressure is capable of penetrating the skin, causing blood poisoning. Also, when calibrating an injector, always wear eye protections with side shields.

Have the injectors checked by a specialised workshop.

D350M0034

Remove any trace of oil or dirt from the transmission breather. Remove it and replace it with a new one.

33. ENGINE BREATHER - Clean To reach breather C, indicated in the figure, open the left panel of the engine compartment.

WARNING

C

Never use gasoline, solvent or other flammable fluid to clean parts. Use exclusively qualified, nonflammable, non-toxic commercial solvents.

D350M0033

Clean the mesh filter.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

3550

79

EVERY 2000 HOURS WORK 34. EQUIPMENT HYDRAULIC CIRCUIT Oil change Draining the oil - Place the machine on flat ground, with the equipment resting on the ground; - remove oil filler cap D and remove lower plug T to drain the oil form the tank.

D

B A

T

D350M0032

Oil refilling Reinstall plug T. Remove cap D on the tank and fill the oil into the tank through the filler neck up to maximum level B. Then reinstall cap D. WARNING After any maintenance intervention on the tank requiring the draining of the oil, when refilling it is necessary to remove plug "P" to provided the bleeding of air trapped inside the tank.

Start the engine, move slowly the blade raising it a few times as well the ripper (if installed) to fill cylinders and pipes. Top-up with oil several times.

Check that the oil level is in the middle of maximum level sight gauge B. This check must be done with the machine on flat ground, equipment resting on the ground, cold oil and engine operating at low idle.

WARNING Do not run the engine of this machine in closed areas without proper ventilation to remove deadly exhaust.

Prior to starting the engine, warn all the personnel that could be working around the machine.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

80

3550

AS REQUIRED

37. FUEL FILTERS Draining the condensation

Operations to be performed when the relevant indicators are activated:

Operation to be performed when the blue indicator on the monitor panel comes ON, indicating the requirement for the draining of water from the fuel filter.

1. Indicator - hydraulic oil filter clogged 2. Indicator - engine air cleaner clogged

D350M0063

3550-M005

35. ENGINE AIR CLEANER CLOGGED Clean the cartridges Operation to be performed when indicator 1, located on the instrument board indicates that the air cleaner is clogged.

See operation no. 27.

Draining condensation Open the left upper panel of the engine compartment, perform the draining of the water and sediments from the fuel filter through the draining valve indicated.

With engine inoperative, loosen the valve located under the filter about 4 full turns and move it downward about 2 cm.

Let any water and sediment flow until clean fuel only gets-out.

Push the valve upward and tighten, avoiding overtightening.

36. OIL FILTER ON EQUIPMENT HYDRAULIC CIRCUIT RETURN Replace the filtering cartridge WARNING Fluid under pressure. Turn the cap slowly to release the pressure before removing it.

Operation to be performed when indicator 3 on the instrument board comes ON indicating that the return oil filter is clogged.

See operation no. 19.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

D350M0123

3550

81

OTHER OPERATIONS TO BE PERFORMED AS REQUIRED

To reach the compartment, loosen screws V and lift cover C.

38. UNDERCARRIAGE - Checking the sag of the track chains WARNING Fluid under pressure. To educe the tension of the track chains, please comply with the procedure suggested in the "Operation and Maintenance Manual". The idler return spring is installed under a considerable compression load. In the event disassembly and reassembly operations must be carried out, comply with the procedure described in the "Repair Manual".

V

C

D350M0061

C. Cover; V. Screws.

In the event the sag of the track chains in the zone L included between the support roller and the idler exceeds 30 - 40 mm (normal tension) pump grease into the fitting of valve VR of the adjustment cylinder, until the normal track chain is obtained.

If the sag is lower, drain grease from the cylinder, loosening slightly adjustment valve VR, moving backward the machine a few yards, if necessary.

Retighten the valve.

VS

VR

DANGER Fluid under pressure. Do not decrease the tension of the track chain loosening pressure relief valve VS. Do not remove the grease fitting installed on adjustment valve VR.

D350M0124

Adjusting the track chain.

VR. Adjustment valve; VS. Pressure relief valve.

D350M0064

Note - In muddy, claysh, very wet grounds and in the presence of sand, gravel, snow and ice, the track chains must be somewhat less tense.

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

82

3550

ELECTRICAL SYSTEM FUSES The fuses are visible on the left side of the dashboard for the version with cab and inside the front pocket (as indicated in the figure).

Remove the covers press fitted on fuse boxes A and B. The fuses protect: FUSE BOX A (rear mounted) 1 = Machine services/cab services - 5 Amp 2 = Electric cut-off (hold). Operator safety levers 5 Amp 3 = Start safety - 5 Amp 4 = Buzzer - Monitor - Optional - 5 Amp 5 = Operator safety relay - 5 Amp 6 = Horn - 7.5 Amp 7 = Micro controller - 7.5 Amp 8 = Transmission control buttons - 5 Amp 9 = Cab ceiling lights - Cigar. lighter Voltage reduction - 7.5 Amp 10 = Front work lights - 7.5 Amp 11 = Rear work lights - 7.5 Amp FUSE BOX B 1 = Front lights - Symbol lights - 7.5 Amp 2 = Heater electric fan - 20 Amp 3 = Right door wiper - 7.5 Amp 4 = Left door wiper - Door washer 7.5 Amp 5 = Rear wipers - 7.5 Amp 6 = Front wipers - Front & rear washers - 7.5 Amp 7 = Condenser fan - 20 Amp 8 = Pre-heater relay - Pre-heater indicator - 5 Amp 9 = socket and EPROM - 5 Amp 10 = Optional - 7.5 Amp 11 = Not used - 7.5 Amp

3550R002

on ROPS

on CAB

Box A

Box B

D350M0183

WARNING Always disconnect the ground cable of the batteries prior to cleaning, repairing, connecting or disconnecting any wire of the electrical system so as to prevent personal injuries.

Always maintain efficient all the lights equipping the machine. Replace any burnt-out bulb at soon as possible.

2 1

LINK FUSES "Link" fuses are visible by opening the left engine hood and are located on the inner side of the frame beam.

Fuse 1 protects the machine - 50 Amp. Fuse 2 protects the alternator - 80 Amp.

D350M0065

1-2. LINK fuses

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

F1A - 5A

H

IMPLEMENT SUPPLY SOL. VALVE

STEERING SAFETY SOLENOID VALVE

OPERATOR SAFETY PROX. SWITCH

STARTER RELAY SOLENOID

ENGINE CONTROLLER

ST M ACC Q2 Q1 B

OFF

ACC

ON

START

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

CAB SERVICES RELAY COIL

SERVICES RELAY COIL

OPTIONAL

FLOAT RELAY AND SOLENOID VALVE

RIPPER SOLENOID VALVE

RESISTOR

MULTIPLE INSTRUMENT

F7B - 20A

F9A - 7,5A

F6A - 7,5A

F10A - A

STARTING WAITING INDICATOR

FC - 10A FB - 10A

BUZZER

LINK

FUSE 80A ALTERNATOR

COMPRESSOR SOLENOID

CONDENSER FAN

RADIO - OPTIONAL

VOLTAGE REDUCTION

CIGARETTE LIGHTER

CAB CEILING LIGHTS

HORN

ENGINE CONTROLLER

ENGINE CONTROLLER

ENGINE DIAGNOSTICS

STARTER MOTOR CONTROL

CAB SERVICES POWER

MACHINE SERVICES POWER

ENGINE MAINTENANCE INDICATOR

ENGINE WARNING INDICATOR

ENGINE CUT-OFF INDICATOR

BRAKE QUICK DISCHARGE SOLENOIDVALVE F11B - 5A ENGINE CONTROLLER SAFETY SWITCH

F5A - 5A

F10B - 7,5A

F4A - 5A

F2A - 5A

F3A - 5A

FC - 5A

KEY SWITCH

LINK

FUSE 50A

F9B - 5A

F8B - 5A

F6B - 7,5A

F5B - 7,5A

F4B - 7,5A

F3B - 7,5A

F2B - 20A

F4D - 4A

F1B - 7,5A

F11A - 7,5A

F10A - 7,5A

F8A - 5A

F7A - 7,5A

WIRING DIAGRAM - PROTECTION TREE

SEAT COMPRESSOR

HEATED SEAT

FRONT WIPERS

FRONT & REAR WASHER PUMP

REAR WIPERS

DOOR WASHER

LEFT DOOR WIPER

RIGHT DOOR WIPER

D350M0066

CONDITIONER RELAY SOLENOID

HEATER ELECTRIC FAN

SENTINEL SYSTEM

SWITCH SYMBOL LIGHTS

FRONT LIGHTS

REAR WORK LIGHTS

MICROCONTROLLER (PIN 1,2,33,46) MICROCONTROLLER (PIN 12,13,14,24,39,40,41,43,52) FRONT WORK LIGHTS

STARTER MOTOR

3550 83

675 35

Fuel tank

Engine

145 51 -

Hydraulic system

Final drives (each)

Various grease fittings

CASE MOLYDISULFIDE GREASE

GRADE 251 H-EP SPECB-27

SAE 80W - 90

GRADE NT

AKCELA HYDRAULIC EXCAVATOR FLUID MS1230 AKCELA GEAR 135 HEP

SAE 10W - 30

–

API GL5 or MIL-L-2105 D

ISO VG 46 DIN 51524 PART - 2 HVI

API CH4 ACEA E5

CNH MAT 3505 MS1209

API CH4 AND ACEA E5

DIESEL FUEL ASTM No. 2D Grade TT of reputable quality and make

50 -50 mixture of water and antifreeze. The mixture has anti-oxidation, anti-corrosion, anti-scaling, anti-foaming properties and antifreezing down to -35 °C (-31 °F).

International classification

Periodic change Half the normal interval One quarter the normal interval

Up to 0.5 % S from 0.5 to 1 % Over 1 %

If the content of sulphur exceeds 0.5%, change the engine oil as follows:

All season

All season

-20÷50 °C (-4-122 °F)

All season

All season

-25÷20 °C (-13÷77 °F)

SAE 10W - 30 SAE 10W

-15÷40° C (-5÷104 °F)

–

Down to - 35 °C (- 31 °F)

Ambient temperature of reference

SAE 15W - 40

–

–

VISCOSITY GRADE

AKCELA NO. 1 ENGINE OIL

AKCELA HY-TRAN®ULTRA

AKCELA NO. 1 ENGINE OIL*

–

PREMIUM ANTI-FREEZE MS1710

Fluids and lubricants AKCELA

Notes: - Oil quantities indicated are those required for periodical changes.

- In case of a lower classification of CH4 engine oil, the change must be done every 250 hours.

- The change interval must be reduced when present sulfur in the fuel exceed to 0,5% or the ambient temperature exceed to 38 °C.

175

Steering / brakes transmission housing

70

37

Cooling system

Torque converter - Transmiss.

Q.TY Litres

ITEM

TABLE OF CAPACITIES 84 3550

Carefully read personal and machine SAFETY PRECAUTIONS (at the beginning of this manual)

COPYRIGHT BY CNH Italia S.p.A. Product Support Via Plava, 80 - 10135 Torino

All rights reserved. Reproduction of text and illustrations in whole or in part, is strictly prohibited

Print No. 84415679 - English - II - 2011

3550

3550 Crawler Dozer Crawler Dozer

Operator’s Manual Print No. 84415679

1st edition English 02/11

from serial no: FNH03550NBHC05001