NEW HOLLand LM732 Telescopic HandLER Service Repair Manual

Telehandlers Print No. 87474474B LM732 SERVICE MANUAL

LM732 TELEHANDLERS Repair Manual Document N.87474474B (IX -- 2012) THIS WARNING SYMBOL ACCOMPANIES IMPORTANT MESSAGES INVOLVING YOUR SAFETY. Read the safety instructions carefully, and follow the precautions recommended in order to avoid potential risks and safeguard your health and your safety. You will find this symbol in the text of this Manual with the following key words: WARNING - Cautions intended to avoid unsuitable repair operations with potential consequences for the safety of the person performing the repair. DANGER - Warnings specifically indicating potential dangers for the safety of the operator or of other persons directly or indirectly involved. IMPORTANT WARNINGS All maintenance and repair operations listed in this Manual must be performed exclusively by the Service Network of the Manufacturer, complying strictly with the indications herein and using the prescribed special tools where indicated. Any person performing service operations described in the manual and failing to abide strictly by the instructions becomes solely responsible for any consequential damage that could occur. The Manufacturer and all organizations in the distribution chain associated with the Manufacturer, including national, regional and local dealers though not excluding others, decline all liability for damages attributable to abnormalities in the operation or response of parts and/or components not approved by the Manufacturer, used in the servicing and/or repair of a product built or marketed by the Manufacturer. In any event, no warranty of any description is offered on or applicable to the product built or marketed by the Manufacturer, in respect of damages resulting from abnormal operation or response of parts and/or components not approved by the Manufacturer.

AVOID ACCIDENTS Most accidents and injuries that occur in and around factories, on farms, in the home or on the roads, are caused by failure to follow some simple and fundamental rule regarding precautionary procedures and safety. Accordingly, IN THE MAJORITY OF CASES, ACCIDENTS CAN BE AVOIDED: it is sufficient simply to foresee the possible causes, and exercise the necessary caution and prudence. Whatever the type of equipment, and however well designed and built, it is not possible to eliminate the risk of accident completely without adversely affecting certain essential features instrumental in providing reasonable levels of accessibility and ensuring smooth operation. A careful and prudent operator is the best insurance against any accident. The complete observance of this simple rule will of itself be sufficient in avoiding many serious accidents. This rule is: never attempt any cleaning, lubrication or maintenance operation with the machine in motion. WARNING Before commencing any kind of maintenance, adjustment or repair work on machines equipped with attachments operated hydraulically, mechanically or by wire ropes (such as front loaders, dozers, scrapers, etc.) make certain the attachment is lowered and resting on the ground. If the attachment needs to be in the raised position in order to gain access to one part of the machine or another, it must be supported in the raised position by separate equipment, and not held with the machine controls. MODEL DESIGNATIONS The models making up the range of telescopic handlers (Telehandlers) described in this manual are identified in the text by reference to the maximum reach of the boom. The vehicles listed below may not be available in all countries or on all markets. For up to date information on all machines, consult your authorized dealer. Model LM732 no Stab. Engine Turbocharged 74 kW Maximum lifting height (m) 7.13 Maximum capacity (kg) at 500 mm from fork rail 4000 Capacity at maximum height (kg) 2500 Reach at maximum height (m) 0.939 Maximum longitudinal reach (m) 4.191 Capacity at maximum reach (kg) 1350 Weight (kg) 7510 Length (m) 6322

Workshop manual LM732 TELESCOPIC HANDLER 87474474B - 09 - 2012 GENERAL LIST OF CONTENTS SECTION 00 -- GENERAL Description Page .............................................................................. General instructions 1 ........................................................................... Safety rules 3 .................................................................................. Product identification 6 ........................................................................... Environmental considerations 10 .................................................................. Maintenance techniques 11 ....................................................................... SECTION 10 – ENGINE Description Page Main engine specifications 3 ...................................................................... General engine specifications 4 ................................................................... General engine F4GE9484F*J600 6 ............................................................... Removal and installation of engine and radiator 11 .................................................. Troubleshooting 23 .............................................................................. Tightening torques 36 ........................................................................... Special tools 37 ................................................................................ SECTION 21 -- POWERSHIFT GEARBOX Description Page Transmission assembly 5 ........................................................................ Drop box assembly 7 ........................................................................... Operation of gearbox 8 .......................................................................... Transmission and hydraulic oil circuit diagrams 15 ................................................... Operation of modulating valve 31 .................................................................. Torque converter and oil cooler hydraulic circuit 34 ................................................... Troubleshooting guide 35 ......................................................................... Troubleshooting procedures 35 ................................................................... Troubleshooting 37 .............................................................................. Pressure tests on clutch and high pressure circuit 38 ................................................. Pressure tests on torque converter and oil cooler hydraulic circuit 39 ................................... Test points 40 .................................................................................. Assembly instructions 42 ......................................................................... Transmission overhaul 45 ........................................................................ Special tools 104 ................................................................................

4 GENERAL LIST OF CONTENTS 87474474B - 09 - 2012 SECTION 25 -- FRONT AXLE Description Page Technical data 1 ................................................................................ Description 2 ................................................................................... Operation 5 .................................................................................... Troubleshooting 6 ............................................................................... Wheel toe--in check 7 ............................................................................ Component overhaul 7 ........................................................................... Front axle removal procedure 8 ................................................................... Front axle overhaul 9 ............................................................................ Adjusting the axle drive pinion bearing adjustment 54 ................................................ Installation and adjustment of axle drive pinion 56 ................................................... Front drive shaft 59 .............................................................................. SECTION 27 -- REAR AXLE Description Page Technical data 1 ................................................................................ Description 2 ................................................................................... Operation Diagram 5 ............................................................................ Component overhaul 7 ........................................................................... Rear axle removal procedure 7 ................................................................... Overhaul 8 ..................................................................................... Special tools 9 .................................................................................. SECTION 33 -- BRAKING SYSTEM Description Page Service brakes 2 ................................................................................ Parking brake 4 ................................................................................ Brake disc adjustment 7 ......................................................................... Troubleshooting 8 ............................................................................... Brakes disassembly 9 ........................................................................... SECTION 35 -- HYDRAULIC SYSTEM Description Page Technical data 2 ................................................................................ Steering system hydraulic circuit, description and operation 3 ......................................... Introduction 3 ................................................................................... Steering valve 3 ................................................................................ Telescopic boom hydraulic circuit 4 ................................................................ Component operation 7 ......................................................................... Hydraulic pump 7 ...............................................................................

GENERAL LIST OF CONTENTS 5 87474474B - 09 - 2012 Front loader controls/operation 9 .................................................................. Balancing valves 11 ............................................................................. Power steering (OSPQ) 13 ....................................................................... Telescopic boom distributor 14 ................................................................... Boom cylinders LM732 23 ........................................................................ Boom 33 ....................................................................................... SECTION 55 – ELECTRICAL SYSTEM Description Page Chapter 1 – Electrical system -- general Electrical equipment specifications 1 ............................................................... Electrical system and fuses 2 ..................................................................... Controls and instruments 6 ....................................................................... SAR -- Anti--tipping system 15 .................................................................... Bulb replacement 35 ............................................................................. Protecting the electrical systems during charging or welding 38 ........................................ Starting the machine using jump leads 39 .......................................................... Temporary wiring repairs 40 ...................................................................... Electrical system – general fault finding 42 .......................................................... Chapter 2 – Circuit diagrams List of connectors 44 ............................................................................ List of components 45 ........................................................................... How to use the circuit diagrams 46 ................................................................ Diagram 1: Starting/Recharge/Warning/Indicators lights 48 ........................................... Diagram 2: Transmission 50 ...................................................................... Diagram 2A: Transmission -- France omologation 52 ................................................. Diagram 3: Wheel alignment/Hydraulic solenoids/Brake system 54 ..................................... Diagram 4: Boom control 56 ...................................................................... Diagram 5: Stabiliser 58 .......................................................................... Diagram 6: Lights/Front wiper 60 .................................................................. Diagram 7: Work lamps/Roof beacon light 62 ....................................................... Diagram 8: Upper wiper 64 ....................................................................... Diagram 9: Load momentum device 66 ............................................................. Diagram 10: Heating / Radio / Power socket / Ceiling light 68 ......................................... Diagram 11: Conditioner 70 .......................................................................

6 GENERAL LIST OF CONTENTS 87474474B - 09 - 2012 SECTION 60 -- AIR CONDITIONING SYSTEM Description Page Air conditioning system 2 ......................................................................... Operation 2 .................................................................................... Cab heating--ventilation controls 3 ................................................................ Precautions for use 5 ............................................................................ Connections for servicing tools 8 .................................................................. Draining the refrigerant 9 ......................................................................... Recharging with refrigerant 9 ..................................................................... Leak test 10 ................................................................................... Special tools 12 ................................................................................. Fault finding 13 .................................................................................

SECTION 00 -- GENERAL 1 87474474B - 09 - 2012 GENERAL INSTRUCTIONS IMPORTANT NOTICE All maintenance and repair operations listed in this Manual must be performed exclusively by the Service Network of the Manufacturer, complying strictly with the indications herein and using the prescribed special tools where indicated. Any person performing service operations described in the manual and failing to abide strictly by the instructions becomes solely responsible for any consequential damage that could occur. SHIMS Select the shims for each adjustment, measuring them one by one with a micrometer and then adding together the values measured: Do not rely on the measurement of the entire pack, which could be wrong, or the nominal value indicated on each washer. SEALS FOR ROTATING SHAFTS For correct installation of the seals on rotating shafts, observe the following precautions: -- prior to installation, soak the seals for at least half an hour in the same oil they will be exposed to in operation; -- clean the shaft thoroughly and make sure that its working surface is undamaged; -- direct the lip toward the fluid; in the case of a hydrodynamic lip, the ribs or grooves must be positioned, relative to the direction of rotation of the shaft, in such a way as to propel the fluid toward the inside of the seal; -- smear the sealing lip with a film of lubricant (oil is preferable to grease) and in the case of double lip seals, pack the gap between the sealing lip and the dust lip with grease; -- insert the seal in its seat, and press home using a punch with a flat contact face; never on any account strike the seal with a hammer or mallet; -- when pressing home the seal, make certain it is inserted perpendicularly in relation to the seat and, once in place, make certain it is in contact with the shoulder, where specified; -- to prevent the lip of the seal being damaged by the shaft, interpose suitable protection media during the installation of the two parts. O--RINGS Lubricate O--rings before inserting them in the relevant seats to prevent them twisting and rolling in the course of installation, as this would adversely affect their sealing action. SEALANTS Mating surfaces marked X must be smeared with a sealing compound recommended by the Manufacturer, or a suitable equivalent. Before applying the compound, prepare the surfaces in the following manner: -- remove any encrustations with a metal brush; -- degrease the surfaces thoroughly using the degreasing agent recommended by the Manufacturer, or a suitable equivalent. BEARINGS When installing bearings, the rings should be: -- heated to 80 90C before shrinking (inner) onto the shaft; -- cooled before driving (outer) into the seat. ROLL PINS When installing roll pins, make sure that the cut is facing in the direction of the mechanical force bearing on the pin. Spiral roll pins, on the other hand, can be fitted with any orientation.

2 SECTION 00 -- GENERAL 87474474B - 09 - 2012 NOTES ON SPARE PARTS Use only genuine spare parts guaranteed by the Manufacturer. Genuine spare parts are the only ones ensuring the same quality, the same life and the same safety as the original equipment, since they are the same as those installed in production. Only genuine parts from the manufacturer ensure this guarantee. Orders for spare parts must include the following indications: -- model of the vehicle (commercial designation) and chassis number; -- type and number of the engine; -- part number for the item ordered, obtainable from the “Microfiches” or the “Spare Part Catalogue”, on the basis of which all orders are processed. NOTES ON TOOLS The tools recommended by the Manufacturer and illustrated in this Manual are: -- studied and designed specifically for servicing vehicles of this range; -- required in order to ensure a reliable repair; -- carefully engineered and stringently tested to provide effective and long lasting equipment. Remember also that when properly equipped, the repair mechanic can: -- operate under optimum technical conditions; -- achieve the best results; -- save time and effort; -- work in safer conditions. WARNING The wear limits indicated for some items must be considered as recommended values, but not absolutely binding. The indications “front”, “rear, “right”, “left” refer to the different parts as seen from a position sitting in the driver seat and facing in the normal forward drive direction of the vehicle. HOW TO MOVE A VEHICLE WITHOUT BATTERIES The cables of the external power supply must be connected exclusively to the respective terminals of the positive and negative cables on the vehicle, using efficient clamps that will provide a secure and stable contact. Switch off all electrical loads (lights, wipers, etc.) before proceeding to start the vehicle. Should it be necessary to check the operation of the vehicle’s electrical system, this must be done only with the power supply connected; Having completed the check, switch off all loads and deactivate the power supply before disconnecting the cables.

SECTION 00 -- GENERAL 3 87474474B - 09 - 2012 SAFETY RULES PAY ATTENTION TO THIS SYMBOL This warning symbol accompanies important messages involving your safety. Read the safety instructions carefully, and follow the precautions recommended in order to avoid potential risks and safeguard your health and your safety. You will find this symbol in the text of this Manual with the following key words: WARNING -- Cautions intended to avoid unsuitable repair operations with potential consequences for the safety of the person performing the repair. DANGER -- Warnings specifically indicating potential dangers for the safety of the operator or of other persons directly or indirectly involved. AVOID ACCIDENTS Most accidents and injuries that occur in and around workshops are caused by failure to follow some simple and fundamental rule regarding precautionary procedures and safety. Accordingly, IN THE MAJORITY OF CASES, ACCIDENTS CAN BE AVOIDED: it is sufficient simply to foresee the possible causes, and exercise the necessary caution and prudence. Whatever the type of equipment, and however well designed and built, it is not possible to eliminate the risk of accident completely. A careful and prudent mechanic is the best insurance against any accident. The complete observance of this simple rule will of itself be sufficient in avoiding many serious accidents. DANGER. Never attempt to clean, lubricate or maintain a machine with the engine running. SAFETY RULES GENERAL  Follow the specified maintenance and repair procedures carefully.  Do not wear rings, wristwatches, jewellery, and loose or hanging garments, such as: ties, torn clothing, scarves, unbuttoned or unzipped jackets that could become caught and entangled in moving parts. Wear proper safety clothing and protective gear, for example: non--slip footwear, gloves, safety glasses or goggles, hard hats, etc.  Do not perform any service operation on the machine with persons occupying the driver seat, unless these are authorized operators assisting with the work in hand.  Never attempt to operate the machine or its attachments from any position other than seated in the driving position.  Never perform any operation on the machine with the engine running, unless indicated in the manual.  Shut off the engine and make certain that there is no pressure in the hydraulic circuits before removing caps, covers, valves etc.  All service operations must be performed with the utmost care and attention.  Step--ladders and access platforms used in the workshop or in the field must be constructed and maintained in accordance with accident prevention regulations.  Disconnect the batteries and tag all controls to signal that servicing is in progress. Immobilize the machine and any attachment that must be lifted.  Do not check or refill fuel tanks, or top up batteries, or use starting fluid when smoking or near a naked flame, since the fluids in question are flammable.  Brakes are inactive when released manually for servicing purposes: in this situation, keep the machine under control using wheel chocks or similar devices.  The gun of the filler hose must always remain in contact with the tank filler pipe when refuelling. Maintain this contact throughout the refuelling operation so as to avoid any possibility of sparks being generated with the build--up of static electricity.  When towing, use only the designated hitch points. Exercise care when coupling trailed loads: Make sure pins and/or locks are secure before pulling. Stay clear of drawbars, cables or chains under load.  To move a machine when broken down, use a trailer or a low--loader, if available.  When loading/unloading a machine from a transport vehicle, select a level surface affording firm support to the wheels of the truck or trailer. Anchor the machine securely to the bed of the truck or trailer and lock the wheels as specified by the carrier.

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NEW HOLLand LM732 Telescopic HandLER Service Repair Manual

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