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Komatsu GD705A-4 Shop Manual SEBM022105 – PDF DOWNLOAD
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Description
Komatsu GD705A-4 Shop Manual SEBM022105 – PDF DOWNLOAD
FILE DETAILS:
Komatsu GD705A-4 Shop Manual SEBM022105 – PDF DOWNLOAD
Language : English
Pages : 431
Downloadable : Yes
File Type : PDF
IMAGES PREVIEW OF THE MANUAL:
TABLE OF CONTENTS:
Komatsu GD705A-4 Shop Manual SEBM022105 – PDF DOWNLOAD
COVER............................................................................ 1 CONTENTS......................................................................... 2 SAFETY........................................................................... 5 SAFETY NOTICE................................................................ 5 GENERAL PRECAUTIONS...................................................... 5 PRECAUTIONS FOR WORK..................................................... 5 PRECAUTIONS DURING WORK.................................................. 6 FOREWARD......................................................................... 7 GENERAL...................................................................... 7 HOW TO READ THE SHOP MANUAL.................................................. 8 VOLUMES.................................................................. 8 DISTRIBUTION AND UPDATING................................................ 8 FILING METHOD............................................................ 8 REVISED EDITION MARK..................................................... 8 REVISIONS................................................................ 8 SYMBOLS.................................................................. 8 HOISTING INSTRUCTIONS........................................................ 9 HOISTING................................................................. 9 WIRE ROPES............................................................... 9 METHOD OF DISASSEMBLING, CONNECTING PUSH-PULL TYPE COUPLER................... 10 COATING MATERIALS............................................................ 12 STANDARD TIGHTENING TORQUE................................................... 14 STANDARD TIGHTENING TORQUE OF BOLTS AND NUTS............................. 14 TIGHTENING TORQUE OF HOSE NUTS........................................... 15 TIGHTENING TORQUE OF SPLIT FLANGE BOLTS.................................. 15 TIGHTENING TORQUE FOR FLARED NUTS........................................ 15 TIGHTENING TORQUE FOR 102 ENGINE SERIES (BOLTS AND NUTS)................. 16 TIGHTENING TORQUE FOR 102 ENGINE SERIES (EYE JOINTS)..................... 16 TIGHTENED TORQUE FOR 102 ENGINE SERIES (TAPERED SCREWS).................. 16 ELECTRIC WIRE CODE........................................................... 17 CLASSIFICATION BY THICKNESS.............................................. 17 CLASSIFICATION BY COLOR AND CODE......................................... 17 CONVERSION TABLES............................................................ 18 METHOD OF USING THE CONVERSION TABLE..................................... 18 UNITS........................................................................ 24 01 GENERAL....................................................................... 25 GENERAL ASSEMBLY DRAWING..................................................... 26 SPECIFICATIONS............................................................... 27 WEIGHT TABLE................................................................. 29 LIST OF LUBRICANT AND WATER.................................................. 30 10 STRUCTURE, FUNCTION AND MAINTENANCE STANDARD.................................. 33 ENGINE MOUNTING.............................................................. 34 RADIATOR..................................................................... 35 FUEL TANK PIPING............................................................. 36 ACCELERATOR CONTROL.......................................................... 37 POWER TRAIN.................................................................. 38 DAMPER....................................................................... 40 PTO (POWER TAKE OFF)......................................................... 41 HYDROSHIFT TRANSMISSION...................................................... 43 HYDROSHIFT TRANSMISSION CONTROL VALVE........................................ 54 HYDROSHIFT TRANSMISSION PIPING............................................... 69 LUBRICATION RELIEF VALVE..................................................... 70 TRANSMISSION PUMP............................................................ 71 TRANSMISSION CONTROL......................................................... 74 DRIVE SHAFT.................................................................. 76 FINAL DRIVE.................................................................. 77 TANDEM DRIVE................................................................. 82 STEERING PIPING.............................................................. 86 STEERING WHEEL............................................................... 90 STEERING VALVE (ORBIT ROLL TYPE)............................................. 91 STEERING SYSTEM.............................................................. 92 STEERING PUMP................................................................ 99 STEERING CYLINDER............................................................102 FRONT AXLE...................................................................104 WHEEL........................................................................110 BRAKE PIPING.................................................................112 DISC BRAKE SYSTEM............................................................114 BRAKE VALVE..................................................................118 RELAY VALVE..................................................................122 AIR GOVERNOR.................................................................124 CHECK VALVE..................................................................126 AIR RESERVOIR................................................................127 SAFETY VALVE.................................................................127 PRESSURE SWITCH..............................................................128 AUTOMATIC DRAIN VALVE........................................................130 AIR DRIER....................................................................132 AIR COMPRESSOR...............................................................134 PARKING BRAKE................................................................135 PARKING BRAKE CONTROL........................................................138 HYDRAULIC PIPING.............................................................140 MAIN CONTROL VALVE...........................................................146 PILOT CHECK VALVE............................................................150 DDV (DUAL DEMAND VALVE)......................................................158 FLOW DIVIDER VALVE...........................................................176 HYDRAULIC PUMP...............................................................178 CIRCLE ROTATION MOTOR........................................................181 HYDRAULIC CYLINDER...........................................................184 WORK EQUIPMENT CONTROL.......................................................194 WORK EQUIPMENT...............................................................196 20 TESTING AND ADJUSTING.........................................................215 STANDARD VALUE TABLE FOR ENGINE..............................................216 STANDARD VALUE TABLE FOR CHASSIS.............................................217 TESTING AND ADJUSTING........................................................221 TESTING AND ADJUSTING TOOL LIST (FOR ENGINE).............................222 TESTING AND ADJUSTING VALVE CLEARANCE....................................223 MEASURING COMPRESSION PRESSURE...........................................224 MEASURING BLOW-BY........................................................225 TESTING AND ADJUSTING FAN BELT TENSION...................................226 TESTING AND ADJUSTING FUEL INJECTION TIMING..............................227 INCHING PEDAL STROKE AND OPERTING FORCE..................................229 HYDROSHIFT TRANSMISSION..................................................230 TRANSMISSION CONTROL LEVER STROKE AND OPERATING FORCE....................232 ADJUSTING F/R CONTROL CABLE..............................................233 ADJUSTING TRANSMISSION CONTROL LINKAGE...................................234 STEERING WHEEL...........................................................236 CHECKING TIRE PLAY.......................................................237 CHECKING TIRE AIR PRESSURE...............................................237 CHECKING TOE-IN..........................................................238 CHECKING PARKING BRAKE LEVER STROKE AND OPERATING FORCE..................240 CHECKING WEAR OF BRAKE DISC..............................................241 CHECKING HYDRAULIC OIL PRESSURE..........................................242 CHECKING HYDRAULIC OIL TEMPERATURE.......................................243 WORK EQUIPMENT CONTROL LEVER STROKE AND OPERATING FORCE..................244 HYDRAULIC DRIFT OF BLADE.................................................244 MEASURING BLADE SINKING AMOUNT...........................................244 TROUBLESHOOTING..............................................................245 POINTS TO REMEMBER WHEN TROUBLESHOOTING..................................246 SEQUENCE OF EVENTS IN TROUBLESHOOTING....................................247 POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE.........................248 CHECKS BEFORE TROUBLESHOOTING............................................256 CONNECTOR TYPES AND MOUNTING LOCATIONS...................................257 CONNECTOR TABLE FOR CONNECTOR PIN NUMBERS................................260 TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE)............................265 E-1 ENGINE DOES NOT START............................................266 E-2 ELECTRIC SYSTEM DOES NOT WORK....................................269 E-3 SERVICE METER DOES NOT WORK......................................270 E-4 WATER TEMPERATURE GUAGE INDICATES ABNORMALLY HIGH TEMPERATURE....271 E-5 WATER TEMPERATURE GUAGE DOES NOT WORK............................271 E-6 FUEL GUAGE ALWAYS INDICATES FULL.................................272 E-7 FUEL GUAGE DOES NOT WORK.........................................272 E-8 ENGINE OIL PRESSURE GUAGE INDICATES ABNORMALLY HIGH PRESSURE.....273 E-9 ENGINE OIL PRESSURE GUAGE DOES NOT WORK..........................273 30 DISASSEMBLY AND ASSEMBLY......................................................275 ALTERNATOR ASSEMBLY..........................................................277 REMOVAL AND INSTALLATION.................................................277 STARTING MOTOR AND ASSEMBLY..................................................278 REMOVAL AND INSTALLATION.................................................278 OIL COOLER ASSMBLY...........................................................278 REMOVAL AND INSTALLATION.................................................278 HYDROSHIFT TRANSMISSION OIL COOLER ASSEMBLY..................................279 REMOVAL AND INSTALLATION.................................................279 WATER PUMP ASSEMBLY..........................................................280 REMOVAL AND INSTALLATION.................................................280 FUEL INJECTION PUMP ASSEMBLY.................................................281 REMOVAL AND INSTALLATION.................................................281 AIR COMPRESSOR ASSEMBLY......................................................282 REMOVAL AND INSTALLATION.................................................282 TURBOCHARGER ASSEMBLY........................................................283 REMOVAL AND INSTALLATION.................................................283 NOZZLE HOLDER ASSEMBLY.......................................................284 REMOVAL AND INSTALLATION.................................................284 CYLINDER HEAD ASSEMBLY.......................................................286 REMOVAL..................................................................286 INSTALLATION.............................................................292 RADIATOR ASSEMBLY............................................................298 REMOVAL..................................................................298 INSTALLATION.............................................................300 FUEL TANK ASSEMBLY (INC. HYDRAULIC TANK).....................................302 REMOVAL..................................................................302 INSTALLATION.............................................................304 ENGINE ASSEMBLY (INC. TRANSMISSION)..........................................306 REMOVAL..................................................................306 INSTALLATION.............................................................311 HYDROSHIFT TRANSMISSION ASSEMBLY.............................................318 DISASSEMBLY..............................................................318 ASSEMBLY.................................................................328 CAGE AND REVERSE CARRIER ASSEMBLY............................................339 DISASSEMBLY AND ASSEMBLY.................................................339 1ST SPEED AND 2ND SPEED CARRIER ASSEMBLY.....................................340 DISASSEMBLY..............................................................340 ASSEMBLY.................................................................341 HIGH REVOLUTION CLUTCH ASSEMBLY..............................................342 DISASSEMBLY..............................................................342 ASSEMBLY.................................................................343 PLANETARY GEAR...............................................................344 DISASSEMBLY AND ASSEMBLY.................................................344 HYDROSHIFT TRANSMISSION PUMP ASSEMBLY........................................345 REMOVAL AND INSTALLATION.................................................345 TANDEM AND FINAL DRIVE ASSEMBLY..............................................346 REMOVAL..................................................................346 INSTALLATION.............................................................347 FINAL DRIVE ASSEMBLY.........................................................348 DISASSEMBLY..............................................................348 ASSEMBLY.................................................................354 BEVEL GEAR ASSEMBLY..........................................................362 DISASSEMBLY..............................................................362 ASSEMBLY.................................................................365 BEVEL PINION ASSEMBLY........................................................368 REMOVAL..................................................................368 INSTALLATION.............................................................369 DISASSEMBLY..............................................................371 ASSEMBLY.................................................................372 SPROCKET ASSEMBLY............................................................374 REMOVAL..................................................................374 INSTALLATION.............................................................376 CHAIN........................................................................378 REMOVAL..................................................................378 INSTALLATION.............................................................380 FRONT AXLE ASSEMBLY..........................................................382 REMOVAL..................................................................382 INSTALLATION.............................................................384 STEERING PUMP ASSEMBLY.......................................................386 REMOVAL AND INSTALLATION.................................................386 STEERING CYLINDER ASSEMBLY...................................................387 REMOVAL AND INSTALLATION.................................................387 WHEEL BRAKE ASSEMBLY.........................................................388 DISASSEMBLY..............................................................388 ASSEMBLY.................................................................390 HYDRAULIC TANK...............................................................392 REMOVAL AND INSTALLATION.................................................392 HYDRAULIC PUMP ASSEMBLY......................................................393 REMOVAL AND INSTALLATION.................................................393 HYDRAULIC CONTROL VALVE ASSEMBLY.............................................394 REMOVAL..................................................................394 INSTALLATION.............................................................395 BLADE LIFT CYLINDER ASSEMBLY.................................................396 REMOVAL AND INSTALLATION.................................................396 DRAWBAR SHIFT CYLINDER ASSEMBLY..............................................397 REMOVAL AND INSTALLATION.................................................397 BLADE SIDE SHIFT CYLINDER ASSEMBLY...........................................398 REMOVAL..................................................................398 INSTALLATION.............................................................399 LEANING CYLINDER ASSEMBLY....................................................400 REMOVAL AND INSTALLATION.................................................400 ARTICULATE CYLINDER ASSEMBLY.................................................401 REMOVAL AND INSTALLATION.................................................401 POWER TILT CYLINDER ASSEMBLY.................................................402 REMOVAL AND INSTALLATION.................................................402 HYDRAULIC CYLINDER ASSEMBLY..................................................403 DISASSEMBLY..............................................................403 ASSEMBLY.................................................................406 BLADE ASSEMBLY...............................................................413 REMOVAL AND INSTALLATION.................................................413 CIRCLE ROTATION GEAR AND HYDRAULIC MOTOR ASSEMBLY............................414 REMOVAL AND INSTALLATION.................................................414 DISASSEMBLY..............................................................415 ASSEMBLY.................................................................417 90 OTHERS........................................................................421 HYDRAULIC CIRCUIT DIAGRAM (STD SPEC.)........................................422 HYDRAULIC CIRCUIT DIAGRAM (DDV SPEC.)........................................424 HYDROSHIFT TRANSMISSION CONTROL CIRCUIT DIAGRAM..............................426 ELECTRICAL CIRCUIT DIAGRAM (1/2).............................................427 ELECTRICAL CIRCUIT DIAGRAM (2/2).............................................428 ELECTRICAL CIRCUIT DIAGRAM FOR AIR CONDITIONER...............................429 ELECTRICAL CIRCUIT DIAGRAM FOR CAB...........................................430
DESCRIPTION:
Komatsu GD705A-4 Shop Manual SEBM022105 – PDF DOWNLOAD
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.
S.S 17/12/24
