Fiat Hitachi Crawler Dozer D350 LT XLT LGP Power Steering Workshop Manual – PDF DOWNLOAD
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Fiat Hitachi Crawler Dozer D350 LT XLT LGP Power Steering Workshop Manual – PDF DOWNLOAD
Language : English
Pages : 331
Downloadable : Yes
File Type : PDF
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Fiat Hitachi Crawler Dozer D350 LT XLT LGP Power Steering Workshop Manual – PDF DOWNLOAD
SAFETY RULES
– Do not allow unauthorised personnel to operate service or maintain this machine.
– 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.
– Keep operator’s compartment, stepping points, grabrails 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 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 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.
– Never attempt to operate the machine or its tools from any position other than seated in the operator’s seat. – Keep head, body, limbs, hands and feet inside operator’s compartment at all times, to reduce exposure to hazards outside the operator’s compartment.
– 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. – 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.
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TABLE OF CONTENTS:
Fiat Hitachi Crawler Dozer D350 LT XLT LGP Power Steering Workshop Manual – PDF DOWNLOAD
D350 Power Steering............................................................................... 1 Workshop manual................................................................................... 1 AVOID ACCIDENTS............................................................................... 2 SUMMARY................................................................................... 3 GENERALITIES.......................................................................... 5 SAFETY RULES...................................................................... 7 TABLE OF TECHNICAL DATA........................................................... 15 IDENTIFICATION DATA........................................................... 17 TABLE OF CAPACITIES........................................................... 18 MAIN DIMENSIONS D350 PS....................................................... 19 SPECIFICATIONS D350 Power Steering............................................ 20 TECHNICAL DATA.................................................................... 33 LIST OF WEIGHTS OF MAIN SERVICE COMPONENTS........................................ 34 STABILITY......................................................................... 35 GENERAL INSTRUCTIONS.............................................................. 36 TROUBLESHOOTING................................................................... 40 UNITS OF MEASURE.................................................................. 41 TABLE OF TIGHTENING TORQUES....................................................... 43 ENGINE................................................................................ 44 GENERAL SPECIFICATIONS............................................................ 46 SERIES "QSM 11" ENGINE DATA....................................................... 48 DIAGRAMS OF SERIES "QSM 11-C" ENGINE.............................................. 51 MOUNTING OF ENGINE ON FRAME....................................................... 54 FAN AFTERCOOLER CONTROL SYSTEM.................................................... 55 THROTTLE LINKAGE.................................................................. 57 TRANSMISSION.......................................................................... 58 OPERATION OF TORQUE CONVERTER-TRANSMISSION HYDRAULIC SYSTEM....................... 60 SUPPLY AND SCAVENGING......................................................... 60 TROQUE CONVERTER.............................................................. 60 COOLING,LUBRICATION AND FLUSHING.............................................. 60 GEARSHIFTING 1st - 3rd - AV - IN.............................................. 60 ENGAGEMENT OF SPEEDS.......................................................... 60 QUICK DISCHARGE VALVES........................................................ 61 HYDRAULIC TORQUE CONVERTER........................................................ 64 REMOVAL OF CONVERTER FROM THE MACHINE......................................... 64 DISASSEMBLY OF TORQUE CONVERTER............................................... 67 INSPECTION OF PARTS AND REASSEMBLY............................................ 74 TORQUE CONVERTER SAFETY VALVE................................................ 78 TORQUE CONVERTER-TRANSMISSION PROPELLER SHAFT..................................... 80 TRANSMISSION.................................................................. 81 REMOVAL OF THE TRANSMISSION FROM THE MACHINE.................................. 81 DISASSEMBLY OF CLUTCHES....................................................... 90 INSPECTION OF PARTS DISASSEMBLED.............................................. 93 REASSEMBLY OF THE TRANSMISSION................................................ 94 TRANSMISSION LUBRICATION OIL PRESSURE RELIEF VALVE............................ 98 REINSTALLATION OF TRANSMISSION................................................ 99 TORQUE CONVERTER-TRANSMISSION OIL FILTERS.........................................102 CONVERTER, TRANSMISSION-CONVERTER, TRANSMISSION OIL SCAVENGER HYDRAULIC PUMP......103 OVERHAUL......................................................................103 PUMP DELIVERY TESTS...........................................................105 TRANSMISSION CONTROL VALVE........................................................110 REMOVAL AND DISASSEMBLY.......................................................110 INSPECTION OF PARTS DISASSEMBLED..............................................112 REASSEMBLY OF CONTROL VALVE...................................................112 HYDRAULIC TESTS OF CONTROL VALVE ON BENCH.....................................113 GEARSHIFT CONTROL.................................................................114 TRANSMISSION GEARSHIFT BUTTONS AND SAFETY LEVER...............................114 DISASSEMBLY OF GEARSHIFT COMPONENTS...........................................115 TRANSMISSION OIL RADIATOR.........................................................116 CLEANING AND INSPECTION OF TIGHTNESS OF HEAT EXCHANGER........................116 TROUBLESHOOTING...................................................................117 TROUBLES, CAUSES, REMEDIES....................................................117 TEST OF CONVERTER-TRANSMISSION GROUP ON MACHINE..............................121 GEARSHIFTING TEST AND CONVERTER STALLING......................................121 CHECK OF TRANSMISSION-CONVERTER PRESSURES.....................................121 SPECIFICATIONS AND DATA...........................................................122 TIGHTENING TORQUES................................................................126 SPECIAL TOOLS.....................................................................127 FINAL DRIVES..........................................................................128 GENERAL DESCRIPTION...............................................................130 FINAL DRIVES (SECTION VIEW AND LIST OF PARTS).................................131 REPAIR PROCEDURES.................................................................133 FINAL DRIVE (Removal/Installation)............................................133 DESCRIPTION OF INSTALLATION OF FRONT SEALS (LONG LIFE) .......................142 FINAL DRIVES (Assembly).......................................................143 SPECIFICATIONS AND DATA...........................................................153 FINAL DRIVE SHAFT AND BEARING FITTINGS........................................153 BRAKES AND STEERING DIFFERENTIAL......................................................155 GENERAL DESCRIPTION...............................................................157 HYDRAULIC BRAKING SYSTEM......................................................157 MAIN COMPONENTS OF BRAKE SYSTEM...............................................160 Brake/fan-drive pump......................................................160 Brake feed valve block....................................................161 Brake pedal valve.........................................................162 Brake oil filters.........................................................164 HYDRAULIC STEERING SYSTEM.....................................................167 MAIN COMPONENT OF STEERING SYSTEM.............................................168 Hydraulic motor...........................................................168 Steering pilot valve block................................................169 Ports on pilot valve block................................................170 FAILURE DIAGNOSIS.................................................................171 DIAGNOSIS DISPLAY.............................................................171 CHECKS AND ADJUSTMENTS...........................................................174 CHECK OF HYDRAULIC PRESSURES..................................................174 BRAKE PEDAL ADJUSTMENT........................................................176 CHECK AND ADJUSTMENT OF BRAKE FEED VALVE BLOCK................................177 STEERING LEVERS SETTING.......................................................178 REPAIR PROCEDURES.................................................................181 BRAKE PEDAL VALVE (removal/disassembly).......................................181 BRAKE HYDRAULIC PUMP (Removal/Disassembly/Reassembly).........................183 BRAKES AND STEERING DIFFERENTIAL .............................................185 Removal (Preliminary operations)..........................................185 Removal of the ring gear..................................................188 Disassembly of planetary carrier assy.....................................189 Disassembly of planetary carrier differential assy........................189 Disassembly of twin sun gear..............................................190 Disassembly of brakes assy................................................192 Reassembly of the brake drum assy.........................................195 Reassembly of the twin sun gear...........................................198 Exploded view of planet carrier assembly:.................................200 Reassembly and installation of the ring gear assy.........................201 Reassembly of brakes/steering differential unit into the rear housing.....202 CHECK AND INSPECTION OF BRAKE DISCS PACK......................................205 SUPPORT ASSEMBLIES (Removal/Disassembly)......................................206 DISASSEMBLY OF STEERING DIFFERENTIAL SUPPORTS.............................209 SUPPORT ASSEMBLIES (Reassembly/Installation)..................................216 ADJUSTMENT OF STEERING PINION BEARING PRELOAD.................................227 ADJUSTMENT OF STEERING BEVEL GEAR.............................................228 BEVEL GEAR (Removal/Disassembly of bevel pinion and gear).....................230 PROCEDURE FOR BEVEL GEAR ADJUSTMENT...........................................245 PROCEDURE FOR ADJUSTING BEVEL PINION BEARING PRELOAD..........................246 REASSEMBLY OF REAR HOUSING GUARDS.............................................247 UNDERCARRIAGE.........................................................................248 GENERAL DESCRIPTION...............................................................250 GENERALITIES..................................................................250 MAIN COMPONENTS...............................................................252 TROUBLESHOOTING...................................................................255 INSPECTIONS.......................................................................256 INSPECTION AND ADJUSTMENT OF TRACK CHAINS.....................................256 REPAIR PROCEDURES.................................................................258 TRACK CHAI (removal / installation)...........................................258 REPLACING A DAMAGED LINK AND RE-INSTALLATION..................................260 IDLER (Removal/Installation/Overhaul).........................................262 TRACK CHAIN SUPPORT ROLLERS (Removal/Installation)............................265 TRACK CHAIN BOTTOM ROLLERS (Removal / Installation)...........................267 SPECIFICATIONS AND DATA...........................................................269 IDLER.........................................................................269 SPROCKETS.....................................................................270 TRACK CHAINS..................................................................270 BOTTOM ROLLERS................................................................271 SUPPORT ROLLERS...............................................................273 TRACK CHAIN TENSIONER.........................................................274 Front cross-member pivots.....................................................275 WEAR LIMITS...................................................................279 DOZING EQUIPMENT HYDRAULIC SYSTEM.....................................................280 GENERAL DESCRIPTION...............................................................282 OPERATION OF THE HYDRAULIC SYSTEM.............................................282 DOZER EQUIPMENT HYDRAULIC SYSTEM DIAGRAM......................................284 TESTS.............................................................................288 FLOW TEST IN SINGLE CIRCUITS..................................................288 REPAIR PROCEDURES.................................................................289 HYDRAULIC OIL RESERVOIR (Removal / Installation) .............................289 EQUIPMENT HYDRAULIC PUMP Removal..............................................291 HYDRAULIC CONTROL VALVE (Overhaul)............................................292 INSTALLATION OF BLADE.........................................................293 SPECIFICATIONS AND DATA...........................................................294 HYDRAULIC CONTROL VALVE.......................................................294 HYDRAULIC POWER PUMP..........................................................295 BLADE CYLINDER SUPPORT FORK...................................................296 BLADE LIFTING CONTROL CYLINDER................................................297 BLADE TILT CONTROL CYLINDER (Bulldozer version)...............................298 BLADE TILT CONTROL CYLINDER (Angledozer version)..............................299 RIPPER LIFTING CYLINDER.......................................................300 RIPPER PITCH CYLINDER.........................................................301 BLADE PUSH ARMS AND RODS......................................................302 C-FRAME AND RODS..............................................................303 SINGLE SHANK RIPPER...........................................................304 ELECTRICAL SYSTEM.....................................................................305 SAFETY RULES......................................................................307 WIRING DIAGRAM - PROTECTION TREE..................................................308 FUSES.........................................................................309 LINK" FUSES AND COLD STARTING FUSE............................................310 MAIN SWITCH...................................................................311 ENGINE STARTING SWITCH........................................................311 BACK-UP ALARM.................................................................312 STARTER MOTOR.................................................................312 INSTRUMENT PANEL / MONITOR........................................................313 ELECTRICAL DIAGRAM OF INSTRUMENT PANEL/MONITOR................................315 MONITOR SENDERS...................................................................316 DISPLAY...........................................................................321 DIAGNOSIS ON DISPLAY..........................................................321 BUZZER............................................................................324 RELAY GROUP - DIODE BOXES - DIVERTER BOX, POWER RELAY.............................325 MAIN CONNECTORS...................................................................328
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