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Komatsu D375A-3 Crawler Bulldozer Shop Manual 17736 and up – PDF DOWNLOAD
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Komatsu D375A-3 Crawler Bulldozer Shop Manual
Book Code: SEBM026600
MACHINE MODEL SERIAL NUMBER
D375A-3 17736 and up
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Description
Komatsu D375A-3 Crawler Bulldozer Shop Manual
FILE DETAILS:
Komatsu D375A-3 Crawler Bulldozer Shop Manual
Brands: Komatsu
Equipment Type: Crawler Bulldozer
Manuals Type: Shop Manual
Machine Model: D375A-3
Serial Number: 17736 and up
Book Code: SEBM026600
Language: English
Pages: 723
File Format: Portable Document Format (PDF)
DESCRIPTION:
Komatsu D375A-3 Crawler Bulldozer Shop Manual
FOREWORD:
GENERAL:
This shop manual has been prepared as an aid to improve the quality of repairs by giving the serviceman an accurate understanding of the product and by showing him the correct way to perform repairs and make judgements. Make sure you understand the contents of this manual and use it to full effect at every opportunity. This shop manual mainly contains the necessary technical information for operations performed in a service workshop. For ease of understanding, the manual is divided into the following chapters; these chapters are further divided into the each main group of components.
STRUCTURE AND FUNCTION:
This section explains the structure and function of each component. It serves not only to give an understanding of the structure, but also serves as reference material for troubleshooting.In addition, this section may contain hydraulic circuit diagrams, electric circuit diagrams, and maintenance standards.
TESTING AND ADJUSTING:
This section explains checks to be made before and after performing repairs, as well as adjustments to be made at completion of the checks and repairs. Troubleshooting charts correlating “Problems” with Causes” are also included in this section.
DISASSEMBLY AND ASSEMBLY:
This section explains the procedures for removing, installing, disassembling and assembling each component, as well as precautions for them.
MAINTENANCE STANDARD:
This section gives the judgment standards for inspection of disassembled parts. The contents of this section may be described in STRUCTURE AND FUNCTION.
OTHERS:
This section mainly gives hydraulic circuit diagrams and electric circuit diagrams. In addition, this section may give the specifications of attachments and options together.
TABLE OF CONTENTS:
Komatsu D375A-3 Crawler Bulldozer Shop Manual
COVER........................................................................................................................................................................... 1 CONTENTS........................................................................................................................................................................ 2 01 GENERAL...................................................................................................................................................................... 23 SPECIFICATION DIMENSION DRAWINGS............................................................................................................................................ 24 SPECIFICATIONS.............................................................................................................................................................. 26 WEIGHT TABLE................................................................................................................................................................ 31 TABLE OF FUEL,COOLANT AND LUBRICANTS........................................................................................................................................ 33 10 STRUCTURE AND FUNCTION....................................................................................................................................................... 35 ENGINE CONTROL.............................................................................................................................................................. 36 POWER TRAIN................................................................................................................................................................. 37 OVERALL DRAWING OF POWER TRAIN UNIT......................................................................................................................................... 39 POWER TRAIN HYDRAULIC PIPING DIAGRAM........................................................................................................................................ 41 POWER TRAIN HYDRAULIC CIRCUIT DRAWING....................................................................................................................................... 42 DAMPER,UNIVERSAL JOINT...................................................................................................................................................... 44 TORQUE CONVERTER,PTO........................................................................................................................................................ 46 TORQUE CONVERTER VALVE...................................................................................................................................................... 51 TRANSMISSION CONTROL........................................................................................................................................................ 53 TRANSMISSION................................................................................................................................................................ 54 TRANSMISSION CONTROL VALVE.................................................................................................................................................. 61 TRANSMISSION LUBRICATION RELIEF VALVE....................................................................................................................................... 68 SCAVENGING PUMP STRAINER.................................................................................................................................................... 69 OVERFLOW VALVE.............................................................................................................................................................. 70 POWER TRAIN PUMP STRAINER................................................................................................................................................... 72 POWER TRAIN,LUBRICATING OIL FILTER.......................................................................................................................................... 73 STEERING,BRAKE CONTROL...................................................................................................................................................... 74 TRANSFER,BEVEL GEAR SHAFT,STEERING.......................................................................................................................................... 78 STEERING CONTROL VALVE...................................................................................................................................................... 82 FINAL DRIVE................................................................................................................................................................. 90 TRACK FRAME................................................................................................................................................................. 94 RECOIL SPRING............................................................................................................................................................... 96 TRACK ROLLER BOGIE.......................................................................................................................................................... 97 MAIN FRAME.................................................................................................................................................................. 99 SUSPENSION..................................................................................................................................................................100 WORK EQUIPMENT HYDRAULIC PIPING DIAGRAM.....................................................................................................................................102 PPC CONTROL PIPING DIAGRAM..................................................................................................................................................106 WORK EQUIPMENT CONTROL......................................................................................................................................................107 WORK EQUIPMENT HYDRAULIC CIRCUIT DIAGRAM....................................................................................................................................109 WORK EQUIPMENT HYDRAULIC CIRCUIT DIAGRAM....................................................................................................................................111 HYDRAULIC TANK..............................................................................................................................................................113 PPC CHARGE VALVE............................................................................................................................................................114 ACCUMULATOR.................................................................................................................................................................116 PPC LOCK VALVE..............................................................................................................................................................117 PPC VALVE...................................................................................................................................................................118 PISTON VALVE................................................................................................................................................................128 QUICK DROP VALVE............................................................................................................................................................129 PIN PULLER SWITCH...........................................................................................................................................................130 PIN PULLER SOLENOID VALVE...................................................................................................................................................131 BLADE CONTROL KNOB..........................................................................................................................................................133 PITCH,DUAL TILT SOLENOID VALVE..............................................................................................................................................134 MAIN CONTROL VALVE..........................................................................................................................................................136 CYLINDER STAY...............................................................................................................................................................162 BLADE.......................................................................................................................................................................163 RIPPER......................................................................................................................................................................165 CAB MOUNT...................................................................................................................................................................167 CAB.........................................................................................................................................................................168 AIR CONDITIONER.............................................................................................................................................................170 MONITOR SYSTEM..............................................................................................................................................................171 SWITCH PANEL................................................................................................................................................................179 FUSE BOX....................................................................................................................................................................179 ENGINE START SAFETY SYSTEM..................................................................................................................................................181 APS.........................................................................................................................................................................182 20 TESTING AND ADJUSTING........................................................................................................................................................184 STANDARD VALUE TABLE FOR ENGINE RELATED PARTS...............................................................................................................................185 STANDARD VALUE TABLE FOR CHASSIS RELATED PARTS..............................................................................................................................186 STANDARD VALUE TABLE FOR ELECTRICAL RELATED PARTS...........................................................................................................................191 STANDARD VALUE TABLE FOR MONITOR............................................................................................................................................192 TABLE OF TOOLS FOR TESTING, ADJUSTING, AND TROUBLESHOOTING..................................................................................................................193 MEASURING ENGINE SPEED......................................................................................................................................................194 MEASURING EXHAUST COLOR.....................................................................................................................................................195 ADJUSTING VALVE CLEARANCE...................................................................................................................................................196 MEASURING COMPRESSION PRESSURE..............................................................................................................................................197 MEASURING BLOW-BY PRESSURE..................................................................................................................................................198 MEASURING ENGINE OIL PRESSURE...............................................................................................................................................199 TESTING AND ADJUSTING FUEL INJECTION TIMING................................................................................................................................200 TESTING AND ADJUSTING ALTERNATOR BELT TENSION...............................................................................................................................202 TESTING AND ADJUSTING BELT TENSION FOR AIR CONDITIONER COMPRESSOR...........................................................................................................202 MEASURING EXHAUST TEMPERATURE...............................................................................................................................................203 MEASURING AIR SUPPLY PRESSURE (BOOST PRESSURE ).............................................................................................................................204 MEASURING TORQUE CONVERTER STALL SPEED......................................................................................................................................205 MEASURING SPEED AT TORQUE CONVERTER STALL + HYDRAULIC PUMP RELIEF (FULL STALL)..............................................................................................206 ADJUSTING FUEL CONTROL LINKAGE..............................................................................................................................................207 ADJUSTING DECELERATOR PEDAL.................................................................................................................................................210 ADJUSTING JOYSTICK (STEERING, DIRECTIONAL, SPEED CONTROL LEVER), PARKING BRAKE LEVER LINKAGE................................................................................211 ADJUSTING BRAKE PEDAL LINKAGE...............................................................................................................................................215 ADJUSTING WORK EQUIPMENT CONTROL LINKAGE....................................................................................................................................216 MEASURING POWER TRAIN OIL PRESSURE..........................................................................................................................................217 MEASURING AND ADJUSTING WORK EQUIPMENT HYDRAULIC PRESSURE...................................................................................................................220 TESTING AND ADJUSTING WORK EQUIPMENT CONTROL CIRCUIT PRESSURE...............................................................................................................222 MEASURING PPC VALVE OUTPUT PRESSURE.........................................................................................................................................223 ADJUSTING PPC VALVE.........................................................................................................................................................224 MEASURING ON-OFF SOLENOID VALVE OUTPUT PRESSURE.............................................................................................................................225 BLEEDING AIR FROM HYDRAULIC CYLINDERS.......................................................................................................................................226 RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT...........................................................................................................................226 CHECKING LOCATION OF CAUSE OF HYDRAULIC DRIFT OF BLADE AND RIPPER...........................................................................................................227 MEASURING LEAKAGE INSIDE CYLINDER...........................................................................................................................................228 ADJUSTING SEMI U-TILTDOZER..................................................................................................................................................229 ADJUSTING CLEARANCE OF IDLER................................................................................................................................................231 SIMPLE PROCEDURE FOR TESTING BRAKE PERFORMANCE..............................................................................................................................232 TROUBLESHOOTING.............................................................................................................................................................233 POINTS TO REMEMBER WHEN TROUBLESHOOTING.................................................................................................................................234 SEQUENCE OF EVENTS IN TROUBLESHOOTING...................................................................................................................................235 POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE........................................................................................................................236 CHECKS BEFORE TROUBLESHOOTING...........................................................................................................................................244 TYPE OF CONNECTOR AND POSITION OF INSTALLATION..........................................................................................................................245 CONNECTOR ARRANGEMENT DIAGRAM ..........................................................................................................................................247 CONNECTION TABLE FOR CONNECTOR PIN NUMBERS.............................................................................................................................251 METHOD OF USING TROUBLESHOOTING CHARTS..................................................................................................................................261 TROUBLESHOOTING OF ENGINE SYSTEM (S MODE)...............................................................................................................................263 METHOD OF USING TROUBLESHOOTING CHARTS..............................................................................................................................264 S-1 STARTING PERFORMANCE IS POOR (STARTING ALWAYS TAKES TIME).......................................................................................................268 S-2 ENGINE DOES NOT START...........................................................................................................................................269 1) ENGINE DOES NOT TURN.........................................................................................................................................269 2) ENGINE TURNS BUT NO EXHAUST SMOKE COMES OUT (FUEL IS NOT BEING INJECTED)....................................................................................270 3) EXHAUST SMOKE COMES OUT BUT ENGINE DOES NOT START (FUEL IS BEING INJECTED)...................................................................................271 S-3 ENGINE DOES NOT PICK UP SMOOTHLY (FOLLOW-UP IS POOR)............................................................................................................272 S-4 ENGINE STOPS DURING OPERATIONS..................................................................................................................................273 S-5 ENGINE DOES NOT ROTATE SMOOTHLY (HUNTING).......................................................................................................................274 S-6 ENGINE LACKS OUTPUT (NO POWER ).................................................................................................................................275 S-7 EXHAUST SMOKE IS BLACK (INCOMPLETE COMBUSTION)..................................................................................................................276 S-8 OIL CONSUMPTION IS EXCESSIVE (OR EXHAUST SMOKE IS BLUE).........................................................................................................277 S-9 OIL BECOMES CONTAMINATED QUICKLY................................................................................................................................278 S-10 FUEL CONSUMPTION IS EXCESSIVE..................................................................................................................................279 S-11 OIL IS IN COOLING WATER, OR WATER SPURTS BACK, OR WATER LEVEL GOES DOWN........................................................................................280 S-12 OIL PRESSURE CAUTION LAMP LIGHTS UP (DROP IN OIL PRESSURE).....................................................................................................281 S-13 OIL LEVEL RISES (WATER, FUEL IN OIL )..........................................................................................................................282 S-14 WATER TEMPERATURE BECOMES TOO HIGH (OVERHEATING)...............................................................................................................283 S-15 ABNORMAL NOISE IS MADE.........................................................................................................................................284 S-16 VIBRATION IS EXCESSIVE.........................................................................................................................................285 TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEMS (H MODE)............................................................................................................286 TABLE OF FAILURE MODES AND CAUSES (HYDRAULIC AND MECHANICAL SYSTEMS)................................................................................................287 H-1 MACHINE LACKS POWER (LACKS DRAWBAR PULL)........................................................................................................................289 H-2 MACHINE DOES NOT MOVE (2ND, 3RD, ENGINE RUNNING)................................................................................................................291 H-3 MACHINE DOES NOT MOVE IN ANY SPEED RANGE........................................................................................................................293 H-4 MACHINE TRAVELS ONLY IN ONE DIRECTION (FORWARD OR IN REVERSE)...................................................................................................295 H-5 TIME LAG IS EXCESSIVE WHEN SHIFTING GEAR OR CHANGING DIRECTION..................................................................................................296 H-6 MACHINE DOES NOT TURN (CAN TRAVEL IN STRAIGHT LINE).............................................................................................................297 H-7 MACHINE TURNS ONLY IN ONE DIRECTION (LEFT OR RIGHT) [JOYSTICK (STEERING, DIRECTIONAL, SPEED LEVER) OPERATED]...................................................298 H-8 MACHINE TURNS TOO FAR...........................................................................................................................................299 H-9 BRAKES DO NOT WORK..............................................................................................................................................300 H-10 POWER TRAIN OIL OVERHEATS......................................................................................................................................301 H-101 ALL WORK EQUIPMENT SPEEDS ARE SLOW............................................................................................................................303 H-102 WORK EQUIPMENT DOES NOT MOVE..................................................................................................................................305 H-103 BLADE LIFT SPEED IS SLOW OR LACKS POWER.......................................................................................................................306 H-104 BLADE TILT SPEED IS SLOW OR LACKS POWER.......................................................................................................................306 H-105 RIPPER LIFT SPEED IS SLOW OR LACKS POWER......................................................................................................................307 H-106 RIPPER TILT SPEED IS SLOW OR LACKS POWER......................................................................................................................307 H-107 EXCESSIVE HYDRAULIC DRIFT OF BLADE LIFT.......................................................................................................................308 H-108 EXCESSIVE HYDRAULIC DRIFT OF BLADE TILT.......................................................................................................................308 H-109 EXCESSIVE HYDRAULIC DRIFT OF RIPPER...........................................................................................................................309 H-110 PIN-PULLER CYLINDER DOES NOT WORK.............................................................................................................................309 H-111 BLADE PITCH DOES NOT WORK.....................................................................................................................................310 H-112 ABNORMAL NOISE FROM AROUND HYDRAULIC PUMP.....................................................................................................................310 TROUBLESHOOTING OF MACHINE MONITOR SYSTEM (M MODE)......................................................................................................................311 M-1 WHEN STARTING SWITCH IN TURNED ON, NO DISPLAY IS GIVEN ON MONITOR PANEL.........................................................................................312 M-2 WHEN STARTING SWITCH IS TURNED ON, MONITOR PANEL LAMPS ALL LIGHT UP BUT DO NOT GO OUT...........................................................................312 M-3 WHEN STARTING SWITCH IS TURNED ON AND ENGINE IS STARTED, CAUTION ITEMS FLASH (WHEN THERE IS NO ABNORMALITY IN CHECK ITEMS OR IN ENGINE).........................313 a) (BATTERY CHARGE) FLASHES.....................................................................................................................................313 b) (ENGINE OIL PRESSURE) FLASHES................................................................................................................................313 c) (COOLANT TEMPERATURE) FLASHES................................................................................................................................314 d) (POWER TRAIN OIL TEMPERATURE) FLASHES........................................................................................................................315 M-4 ABNORMALITY IN (PREHEATING).....................................................................................................................................316 a) PREHEATING MONITOR LAMP DOES NOT LIGHT UP....................................................................................................................316 b) PREHEATING MONITOR LAMP STAYS LIGHTED UP.....................................................................................................................316 M-5 ABNORMALITY IN BUZZER...........................................................................................................................................317 a) CAUTION ITEM FLASHES BUT BUZZER DOES NOT SOUND OR BUZZER DOES NOT SOUND FOR 1 SEC. WHEN STARTING SWITCH IS TURNED ON (ENGINE STOPPED)........................317 b) MONITOR DISPLAY IS NORMAL BUT BUZZER SOUNDS..................................................................................................................317 M-6 ABNORMALITY IN WARNING LAMP.....................................................................................................................................318 a) CAUTION ITEM FLASHES BUT WARNING LAMP DOES NOT FLASH, OR WHEN STARTING SWITCH IS TURNED ON (ENGINE STOPPED), WARNING LAMP DOES NOT LIGHT UP FOR 1 SECOND....318 b) MONITOR DISPLAY IS NORMAL BUT WARNING LAMP LIGHTS UP.........................................................................................................318 M-7 ABNORMALITY IN GAUGE............................................................................................................................................319 a) ABNORMALITY IN ENGINE COOLANT TEMPERATURE GAUGE..............................................................................................................319 b) ABNORMALITY IN POWER TRAIN (TORQUE CONVERTER) OIL TEMPERATURE GAUGE..........................................................................................319 c) ABNORMALITY IN FUEL LEVEL GAUGE..............................................................................................................................320 M-8 SERVICE METER DOES NOT MOVE AFTER ENGINE IS STARTED.............................................................................................................321 M-9 MONITOR PANEL LIGHTING DOES NOT LIGHT UP (FRONT LAMP, WORKING LAMP ARE NORMAL)..................................................................................322 TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE)...........................................................................................................................323 E-1 ENGINE DOES NOT START...........................................................................................................................................324 E-2 DEFECTIVE OPERATION OF APS......................................................................................................................................326 a) PREHEATING MONITOR LAMP DOES NOT LIGHT UP DURING PREHEATING..................................................................................................326 b) PREHEATING MONITOR LAMP STAYS LIGHTED UP AFTER PREHEATING IS COMPLETED.......................................................................................326 c) PREHEATING MONITOR LAMP FLASHES AFTER PREHEATING IS COMPLETED................................................................................................327 d) PREHEATING MONITOR LAMP LIGHTS UP WHEN ENGINE IS STARTED (STARTING SWITCH AT START) AFTER PREHEATING IS COMPLETED............................................327 e) APS IS NOT ACTUATED WHEN WATER TEMPERATURE IS BELOW 20℃......................................................................................................328 f) APS IS ACTUATED WHEN WATER TEMPERATURE IS ABOVE 20℃..........................................................................................................330 g) APS IS ACTUATED WHEN WATER TEMPERATURE IS BELOW 20℃ BUT APS SWITCH IS NOT TURNED ON..........................................................................330 E-3 DEFECTIVE OPERATION OF BACK-UP ALARM............................................................................................................................331 a) BACK-UP ALARM DOES NOT SOUND.................................................................................................................................331 b) BACK-UP ALARM DOES NOT STOP SOUNDING.........................................................................................................................331 E-4 LAMPS DO NOT LIGHT UP...........................................................................................................................................332 a) FRONT LAMPS..................................................................................................................................................332 b) WORKING LAMPS................................................................................................................................................332 c) REAR LAMPS (RIPPER LAMP).....................................................................................................................................334 E-5 PIN-PULLER CYLINDER DOES NOT WORK (ONLY MACHINES EQUIPPED WITH GIANT RIPPER)....................................................................................335 E-6 BLADE DUAL TILT DOES NOT WORK (DUAL TILTDOZER SPECIFICATION)...................................................................................................336 E-7 BLADE PITCH DOES NOT WORK (DUAL TILTDOZER SPECIFICATION)........................................................................................................337 30 DISASSEMBLY AND ASSEMBLY.....................................................................................................................................................339 METHOD OF USING MANUAL......................................................................................................................................................342 PRECAUTIONS WHEN CARRYING OUT OPERATION.....................................................................................................................................344 SPECIAL TOOL LIST...........................................................................................................................................................346 SKETCHES OF SPECIAL TOOLS...................................................................................................................................................353 STARTING MOTOR..............................................................................................................................................................357 REMOVAL.................................................................................................................................................................357 INSTALLATION............................................................................................................................................................357 ALTERNATOR..................................................................................................................................................................358 REMOVAL.................................................................................................................................................................358 INSTALLATION............................................................................................................................................................358 ENGINE OIL COOLER...........................................................................................................................................................359 REMOVAL.................................................................................................................................................................359 INSTALLATION............................................................................................................................................................360 FUEL INJECTION PUMP.........................................................................................................................................................361 REMOVAL.................................................................................................................................................................361 INSTALLATION............................................................................................................................................................361 WATER PUMP..................................................................................................................................................................362 REMOVAL.................................................................................................................................................................362 INSTALLATION............................................................................................................................................................362 THERMOSTAT..................................................................................................................................................................363 REMOVAL.................................................................................................................................................................363 INSTALLATION............................................................................................................................................................363 TURBOCHARGER................................................................................................................................................................364 REMOVAL.................................................................................................................................................................364 INSTALLATION............................................................................................................................................................365 AFTERCOOLER CORE............................................................................................................................................................366 REMOVAL.................................................................................................................................................................366 INSTALLATION............................................................................................................................................................367 NOZZLE HOLDER...............................................................................................................................................................368 REMOVAL.................................................................................................................................................................368 INSTALLATION............................................................................................................................................................368 ENGINE FRONT SEAL...........................................................................................................................................................369 REMOVAL.................................................................................................................................................................369 INSTALLATION............................................................................................................................................................369 ENGINE REAR SEAL............................................................................................................................................................371 REMOVAL.................................................................................................................................................................371 INSTALLATION............................................................................................................................................................371 CYLINDER HEAD...............................................................................................................................................................373 REMOVAL.................................................................................................................................................................373 INSTALLATION............................................................................................................................................................378 FUEL TANK...................................................................................................................................................................380 REMOVAL.................................................................................................................................................................380 INSTALLATION............................................................................................................................................................380 RADIATOR....................................................................................................................................................................381 REMOVAL.................................................................................................................................................................381 INSTALLATION............................................................................................................................................................382 RADIATOR GUARD..............................................................................................................................................................383 REMOVAL.................................................................................................................................................................383 INSTALLATION............................................................................................................................................................385 ENGINE......................................................................................................................................................................386 REMOVAL.................................................................................................................................................................386 INSTALLATION............................................................................................................................................................391 DAMPER......................................................................................................................................................................392 REMOVAL.................................................................................................................................................................392 INSTALLATION............................................................................................................................................................395 DISASSEMBLY.............................................................................................................................................................397 ASSEMBLY................................................................................................................................................................398 POWER TRAIN UNIT............................................................................................................................................................400 REMOVAL.................................................................................................................................................................400 INSTALLATION............................................................................................................................................................404 DISCONNECTION...........................................................................................................................................................405 CONNECTION..............................................................................................................................................................410 PTO.........................................................................................................................................................................412 DISASSEMBLY.............................................................................................................................................................412 ASSEMBLY................................................................................................................................................................416 TORQUE CONVERTER............................................................................................................................................................420 DISASSEMBLY.............................................................................................................................................................420 ASSEMBLY................................................................................................................................................................426 TORQFLOW TRANSMISSION.......................................................................................................................................................432 DISASSEMBLY.............................................................................................................................................................432 ASSEMBLY................................................................................................................................................................448 STEERING CASE...............................................................................................................................................................465 DISASSEMBLY.............................................................................................................................................................465 ASSEMBLY................................................................................................................................................................473 POWER TRAIN, LUBRICATION PUMP...............................................................................................................................................483 REMOVAL.................................................................................................................................................................483 INSTALLATION............................................................................................................................................................483 SCAVENGING PUMP.............................................................................................................................................................484 REMOVAL.................................................................................................................................................................484 INSTALLATION............................................................................................................................................................484 TORQUE CONVERTER OIL COOLER.................................................................................................................................................485 REMOVAL.................................................................................................................................................................485 INSTALLATION............................................................................................................................................................485 TORQUE CONVERTER VALVE......................................................................................................................................................486 REMOVAL.................................................................................................................................................................486 INSTALLATION............................................................................................................................................................486 DISASSEMBLY.............................................................................................................................................................487 ASSEMBLY................................................................................................................................................................488 TRANSMISSION CONTROL VALVE..................................................................................................................................................489 REMOVAL.................................................................................................................................................................489 INSTALLATION............................................................................................................................................................489 DISASSEMBLY.............................................................................................................................................................490 ASSEMBLY................................................................................................................................................................491 TRANSMISSION LUBRICATION VALVE..............................................................................................................................................492 REMOVAL.................................................................................................................................................................492 INSTALLATION............................................................................................................................................................492 DISASSEMBLY.............................................................................................................................................................492 ASSEMBLY................................................................................................................................................................492 STEERING CONTROL VALVE......................................................................................................................................................493 REMOVAL.................................................................................................................................................................493 INSTALLATION............................................................................................................................................................493 DISASSEMBLY.............................................................................................................................................................494 ASSEMBLY................................................................................................................................................................496 FINAL DRIVE.................................................................................................................................................................497 REMOVAL.................................................................................................................................................................497 INSTALLATION............................................................................................................................................................497 DISASSEMBLY.............................................................................................................................................................498 ASSEMBLY................................................................................................................................................................504 TRACK FRAME.................................................................................................................................................................513 REMOVAL.................................................................................................................................................................513 INSTALLATION............................................................................................................................................................515 IDLER.......................................................................................................................................................................516 REMOVAL.................................................................................................................................................................516 INSTALLATION............................................................................................................................................................516 DISASSEMBLY.............................................................................................................................................................517 ASSEMBLY................................................................................................................................................................519 RECOIL SPRING...............................................................................................................................................................521 REMOVAL.................................................................................................................................................................521 INSTALLATION............................................................................................................................................................526 DISASSEMBLY.............................................................................................................................................................527 ASSEMBLY................................................................................................................................................................528 TRACK ROLLER................................................................................................................................................................529 REMOVAL.................................................................................................................................................................529 INSTALLATION............................................................................................................................................................530 DISASSEMBLY.............................................................................................................................................................531 ASSEMBLY................................................................................................................................................................532 BOGIE ......................................................................................................................................................................534 REMOVAL.................................................................................................................................................................534 INSTALLATION............................................................................................................................................................535 DISASSEMBLY.............................................................................................................................................................536 ASSEMBLY................................................................................................................................................................540 CARRIER ROLLER..............................................................................................................................................................545 REMOVAL.................................................................................................................................................................545 INSTALLATION............................................................................................................................................................545 DISASSEMBLY.............................................................................................................................................................546 ASSEMBLY................................................................................................................................................................548 TRACK SHOE..................................................................................................................................................................551 REMOVAL.................................................................................................................................................................551 INSTALLATION............................................................................................................................................................553 OVERALL DISASSEMBLY OF TRACK SHOE...........................................................................................................................................554 OVERALL ASSEMBLY............................................................................................................................................................559 PRESS-FITTING JIG DIMENSION TABLE FOR LINK PRESS............................................................................................................................573 ONE LINK....................................................................................................................................................................574 FIELD DISASSEMBLY.......................................................................................................................................................574 FIELD ASSEMBLY..........................................................................................................................................................576 MASTER LINK.................................................................................................................................................................578 DISASSEMBLY............................................................................................................................................................578 ASSEMBLY...............................................................................................................................................................580 PIVOT SHAFT.................................................................................................................................................................583 REMOVAL.................................................................................................................................................................583 INSTALLATION............................................................................................................................................................583 EQUALIZER BAR...............................................................................................................................................................584 REMOVAL.................................................................................................................................................................584 INSTALLATION............................................................................................................................................................587 EQUALIZER BAR BUSHING.......................................................................................................................................................588 DISASSEMBLY.............................................................................................................................................................588 ASSEMBLY................................................................................................................................................................589 SEGMENT TOOTH...............................................................................................................................................................590 REMOVAL.................................................................................................................................................................590 INSTALLATION............................................................................................................................................................590 HYDRAULIC TANK..............................................................................................................................................................591 REMOVAL.................................................................................................................................................................591 INSTALLATION............................................................................................................................................................593 WORK EQUIPMENT, PPC PUMP....................................................................................................................................................594 REMOVAL.................................................................................................................................................................594 INSTALLATION............................................................................................................................................................594 BLADE LIFT VALVE............................................................................................................................................................595 REMOVAL.................................................................................................................................................................595 INSTALLATION............................................................................................................................................................596 DISASSEMBLY.............................................................................................................................................................597 ASSEMBLY................................................................................................................................................................598 BLADE TILT, RIPPER LO VALVE.................................................................................................................................................599 REMOVAL.................................................................................................................................................................599 INSTALLATION............................................................................................................................................................600 DISASSEMBLY.............................................................................................................................................................601 ASSEMBLY................................................................................................................................................................601 RIPPER HI VALVE.............................................................................................................................................................603 REMOVAL.................................................................................................................................................................603 INSTALLATION............................................................................................................................................................603 DISASSEMBLY.............................................................................................................................................................604 ASSEMBLY................................................................................................................................................................604 PPC CHARGE VALVE............................................................................................................................................................606 REMOVAL.................................................................................................................................................................606 INSTALLATION............................................................................................................................................................606 DISASSEMBLY.............................................................................................................................................................607 ASSEMBLY................................................................................................................................................................607 BlADE PPC VALVE.............................................................................................................................................................608 REMOVAL.................................................................................................................................................................608 INSTALLATION............................................................................................................................................................609 DISASSEMBLY.............................................................................................................................................................610 ASSEMBLY................................................................................................................................................................611 RIPPER PPC VALVE............................................................................................................................................................613 REMOVAL.................................................................................................................................................................613 INSTALLATION............................................................................................................................................................614 DISASSEMBLY.............................................................................................................................................................615 ASSEMBLY................................................................................................................................................................616 BlADE LIFT CYLINDER.........................................................................................................................................................617 REMOVAL.................................................................................................................................................................617 INSTALLATION............................................................................................................................................................617 BlADE TILT CYLINDER.........................................................................................................................................................618 REMOVAL.................................................................................................................................................................618 INSTALLATION............................................................................................................................................................618 RIPPER LIFT CYLINDER........................................................................................................................................................619 REMOVAL.................................................................................................................................................................619 INSTALLATION............................................................................................................................................................619 RIPPER TILT CYLINDER........................................................................................................................................................620 REMOVAL.................................................................................................................................................................620 INSTALLATION............................................................................................................................................................620 HYDRAULIC CYLINDER..........................................................................................................................................................621 DISASSEMBLY.............................................................................................................................................................621 ASSEMBLY................................................................................................................................................................624 RIPPER PIN-PULLER...........................................................................................................................................................627 REMOVAL.................................................................................................................................................................627 INSTALLATION............................................................................................................................................................627 DISASSEMBLY.............................................................................................................................................................628 ASSEMBLY................................................................................................................................................................629 BLADE.......................................................................................................................................................................631 REMOVAL.................................................................................................................................................................631 INSTALLATION............................................................................................................................................................632 DISASSEMBLY.............................................................................................................................................................633 ASSEMBLY................................................................................................................................................................635 GIANT RIPPER................................................................................................................................................................637 DISASSEMBLY.............................................................................................................................................................637 ASSEMBLY................................................................................................................................................................639 ROPS GUARD..................................................................................................................................................................641 REMOVAL.................................................................................................................................................................641 INSTALLATION............................................................................................................................................................641 OPERATOR'S CAB..............................................................................................................................................................642 REMOVAL.................................................................................................................................................................642 INSTALLATION............................................................................................................................................................642 FLOOR FRAME.................................................................................................................................................................643 REMOVAL.................................................................................................................................................................643 INSTALLATION............................................................................................................................................................647 DASHBOARD...................................................................................................................................................................649 REMOVAL.................................................................................................................................................................649 INSTALLATION............................................................................................................................................................650 MONITOR PANEL...............................................................................................................................................................651 REMOVAL.................................................................................................................................................................651 INSTALLATION............................................................................................................................................................651 APS CONTROLLER..............................................................................................................................................................652 REMOVAL.................................................................................................................................................................652 INSTALLATION............................................................................................................................................................652 AIR CONDITIONER COMPRESSOR..................................................................................................................................................653 REMOVAL.................................................................................................................................................................653 INSTALLATION............................................................................................................................................................654 AIR CONDITIONER CONDENSER...................................................................................................................................................655 REMOVAL.................................................................................................................................................................655 INSTALLATION............................................................................................................................................................655 HOOD........................................................................................................................................................................656 REMOVAL.................................................................................................................................................................656 INSTALLATION............................................................................................................................................................656 40 MAINTENANCE STANDARD.........................................................................................................................................................657 ENGINE MOUNT................................................................................................................................................................658 DAMPER, UNIVERSAL JOINT.....................................................................................................................................................659 TORQUE CONVERTER............................................................................................................................................................660 TORQUE CONVERTER VALVE......................................................................................................................................................661 TRANSMISSION................................................................................................................................................................662 TRANSMISSION CONTROL VALVE..................................................................................................................................................664 POWER TRAIN LUBRICATION + POWER TRAIN PUMP..................................................................................................................................666 SCAVENGING PUMP.............................................................................................................................................................667 TRANSFER, BEVEL PINION......................................................................................................................................................668 BEVEL GEAR SHAFT, STEERING CLUTCH, BRAKE....................................................................................................................................669 STEERING CONTROL VALVE......................................................................................................................................................671 FINAL DRIVE.................................................................................................................................................................673 MAIN FRAME..................................................................................................................................................................675 TRACK FRAME.................................................................................................................................................................677 RECOIL SPRING...............................................................................................................................................................678 IDLER.......................................................................................................................................................................679 TRACK ROLLER BOGIE..........................................................................................................................................................681 TRACK ROLLER................................................................................................................................................................683 CARRIER ROLLER..............................................................................................................................................................685 TRACK SHOE..................................................................................................................................................................687 SINGLE SHOE.................................................................................................................................................................690 EQUALIZER BAR...............................................................................................................................................................691 PIVOT SHAFT.................................................................................................................................................................693 WORK EQUIPMENT + PPC CHARGE PUMP............................................................................................................................................695 WORK EQUIPMENT CONTROL VALVE................................................................................................................................................697 PPC VALVE...................................................................................................................................................................701 PPC CHARGE VALVE............................................................................................................................................................704 WORK EQUIPMENT CYLINDER.....................................................................................................................................................705 QUICK DROP VALVE............................................................................................................................................................709 CLINDER STAY................................................................................................................................................................710 BLADE.......................................................................................................................................................................711 RIPPER EQUIPMENT............................................................................................................................................................716 90 OTHERS.......................................................................................................................................................................720 ELECTRICAL CIRCUIT DIAGRAM..................................................................................................................................................721
KOMATSU D375A-3 CRAWLER BULLDOZER SHOP MANUAL 17736 AND UP – PDF DOWNLOAD:
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