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KOMATSU GD555-3C GD655-3C GD675-3C SHOP MANUAL SEBM020905 – PDF DOWNLOAD
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Description
KOMATSU GD555-3C GD655-3C GD675-3C SHOP MANUAL SEBM020905 – PDF DOWNLOAD
FILE DETAILS:
KOMATSU GD555-3C GD655-3C GD675-3C SHOP MANUAL SEBM020905 – PDF DOWNLOAD
Language : English
Pages : 735
Downloadable : Yes
File Type : PDF
IMAGES PREVIEW OF THE MANUAL:
TABLE OF CONTENTS:
KOMATSU GD555-3C GD655-3C GD675-3C SHOP MANUAL SEBM020905 – PDF DOWNLOAD
MAIN MENU............................................................................................................................... 0 COVER................................................................................................................................... 1 CONTENTS................................................................................................................................ 2 FOREWORD................................................................................................................................ 6 SAFETY.............................................................................................................................. 6 GENERAL............................................................................................................................. 8 HOW TO READ THE SHOP MANUAL......................................................................................................... 9 HOIST INSTRUCTIONS.................................................................................................................. 10 PUSH-PULL TYPE COUPLERS............................................................................................................. 11 COATING MATERIALS................................................................................................................... 13 STANDARD TIGHTENING TORQUE.......................................................................................................... 15 ELECTRIC WIRE CODE.................................................................................................................. 18 CONVERSION TABLES................................................................................................................... 19 UNITS............................................................................................................................... 25 01 GENERAL.............................................................................................................................. 26 GENERAL ASSEMBLY DRAWING............................................................................................................ 27 SPECIFICATIONS...................................................................................................................... 28 WEIGHT TABLE........................................................................................................................ 40 FUEL, COOLANT, AND LUBRICANT SELECTION.............................................................................................. 42 10 STRUCTURE AND FUNCTION............................................................................................................... 45 ACCELERATOR CONTROL LINKAGE......................................................................................................... 46 ACCELERATOR PEDAL................................................................................................................... 47 FAN DRIVE........................................................................................................................... 48 POWER TRAIN DIAGRAM................................................................................................................. 49 TRANSMISSION HYDRAULIC PIPING....................................................................................................... 50 TRANSMISSION CONTROL................................................................................................................ 52 TORQUE CONVERTER.................................................................................................................... 53 TORQUE CONVERTER LOCK-UP VALVE (ECMV)............................................................................................... 58 TRANSMISSION........................................................................................................................ 61 TRANSMISSION VALVE.................................................................................................................. 90 ECMV (ELECTRONIC CONTROL MODULATION VALVE).......................................................................................... 91 MAIN RELIEF VALVE................................................................................................................... 96 TRANSMISSION PUMP................................................................................................................... 99 TRANSMISSION AND DIFFERENTIAL LOCK PUMP.............................................................................................100 FINAL DRIVE.........................................................................................................................101 TANDEM DRIVE........................................................................................................................106 STEERING HYDRAULIC PIPING DRAWING...................................................................................................110 STEERING VALVE (Q/AMP MANUAL ORBIT-ROLL TYPE).......................................................................................113 PRIORITY ACC GOVERNOR VALVE SERIAL NO. 50001-51000..................................................................................120 PRIORITY VALVE SERIAL NO. 51001 AND UP..............................................................................................127 ACCUMULATOR CHARGE VALVE............................................................................................................134 FRONT AXLE..........................................................................................................................136 BRAKE HYDRAULIC PIPING..............................................................................................................140 BRAKE VALVE.........................................................................................................................144 WHEEL BRAKE.........................................................................................................................148 SLACK ADJUSTER......................................................................................................................149 ACCUMULATOR.........................................................................................................................152 PARKING BRAKE.......................................................................................................................153 PARKING AND BANK CONTROL VALVE .....................................................................................................154 WORK EQUIPMENT HYDRAULIC PIPING DRAWING.............................................................................................156 HYDRAULIC PUMP SERIAL NO. 50001-51000...............................................................................................166 HYDRAULIC PUMP SERIAL NO. 51001 AND UP..............................................................................................188 MAIN CONTROL VALVE..................................................................................................................211 CLSS................................................................................................................................230 WORK EQUIPMENT CONTROL..............................................................................................................242 HYDRAULIC SYSTEM....................................................................................................................244 HYDRAULIC TANK......................................................................................................................250 SWIVEL JOINT........................................................................................................................251 PILOT CHECK VALVE...................................................................................................................254 BLADE ACCUMULATOR, FLOAT VALVE......................................................................................................259 SHUT-OFF VALVE......................................................................................................................263 BLADE FLOAT DEVICE..................................................................................................................264 CIRCLE ROTATION MOTOR...............................................................................................................266 HYDRAULIC CYCLINDER.................................................................................................................268 CIRCLE DRAWBAR......................................................................................................................274 LIFTER BRACKET LOCK PIN.............................................................................................................276 BLADE...............................................................................................................................278 CIRCLE ROTATION GEAR................................................................................................................280 SCARIFIER...........................................................................................................................284 RIPPER..............................................................................................................................286 MAIN FRAME..........................................................................................................................289 AIR CONDITIONER.....................................................................................................................290 ENGINE STARTING CIRCUIT.............................................................................................................294 ENGINE STOP CIRCUIT.................................................................................................................298 PREHEAT CIRCUIT.....................................................................................................................300 AUTOMATIC SHIFT CONTROL SYSTEM......................................................................................................302 TRANSMISSION CONTROLLER.............................................................................................................303 MONITOR.............................................................................................................................307 SENSORS.............................................................................................................................310 20 TESTING AND ADJUSTING................................................................................................................317 STANDARD VALUE TABLES...............................................................................................................318 STANDARD VALUE TABLE FOR ENGINE.................................................................................................318 STANDARD VALUE TABLE FOR CHASSIS................................................................................................322 STANDARD VALUE TABLE FOR ELECTRICAL SYSTEM......................................................................................329 TESTING AND ADJUSTING...............................................................................................................339 TOOLS FOR TESTING, ADJUSTING, AND TROUBLESHOOTING...............................................................................340 MEASURING EXHAUST COLOR.........................................................................................................341 MEASURING BLOWBY PRESSURE.......................................................................................................342 MEASURING ENGINE OIL PRESSURE...................................................................................................343 MEASURING ENGINE SPEED..........................................................................................................343 TESTING FAN BELT TENSION........................................................................................................344 TESTING AIR CONDITIONER COMPRESSOR BELT TENSION ................................................................................345 MEASURING TORQUE COVERTER STALL SPEED...........................................................................................345 CHECKING CLUTCH OIL PRESSURE ...................................................................................................346 CHECKING TORQUE CONVERTER OIL PRESSURE..........................................................................................347 ADJUSTING SPEED SENSOR .........................................................................................................348 FLUSHING THE TORQUE CONVETER, TRANSMISSION CIRCUIT..............................................................................350 ADJUSTING ACCELERATOR CONTROL LINKAGE ..........................................................................................351 TESTING THE BRAKE DISC..........................................................................................................352 TESTING AND ADJUSTING PARKING BRAKE PAD CLEARANCE ..............................................................................353 TESTING ACCUMULATOR CHARGE PRESSURE.............................................................................................354 TESTING AND ADJUSTING WORK EQUIPMENT OIL PRESSURE...............................................................................354 TESTING AND ADJUSTING THE LS DIFFERENTIAL PRESSURE..............................................................................355 ADJUSTING THE PC VALVE .........................................................................................................357 BLEEDING AIR FROM THE HYDRAULIC CIRCUIT.........................................................................................357 MEASURING INTERNAL CYLINDER LEAKAGE.............................................................................................358 MEASURING STEERING, BRAKE OIL PRESSURE..........................................................................................360 BLEEDING AIR FROM THE BRAKE PIPING..............................................................................................361 CHARGING NITROGEN GAS FOR BRAKE, WORK EQUIPMENT ACCUMULATOR.....................................................................362 TESTING AND ADJUSTING CIRCLE GUIDE CLEARANCE....................................................................................363 TESTING AND ADJUSTING SLIP CLUTCH-TYPE ROTARY DEVICE............................................................................365 MEMORIZING IDLE AND FULL POSITION PROCEDURE ....................................................................................367 INITIAL LEARNING METHOD FOR THE TRANSMISSION CONTROLLER.........................................................................368 DIODE CHECKING PROCEDURE........................................................................................................370 MOVING MACHINE WHEN TRANSMISSION VALVE FAILS....................................................................................371 ADJUSTING CAB STOPPER BOLT......................................................................................................373 TROUBLESHOOTING.....................................................................................................................375 TROUBLESHOOTING POINTS TO REMEMBER..............................................................................................376 TROUBLESHOOTING SEQUENCE........................................................................................................377 POINTS TO REMEMBER WHEN PERFORMING MAINTENANCE..................................................................................378 CHECKS BEFORE TROUBLESHOOTING...................................................................................................386 CONNECTOR TYPES AND MOUNTING LOCATIONS..........................................................................................387 CONNECTOR ARRANGEMENT DIAGRAM...................................................................................................396 CONNECTION TABLE FOR CONNECTOR PIN NUMBERS......................................................................................404 MESSAGE CENTER DISPLAY AND TABLE ERROR CODES....................................................................................425 USING THE TROUBLESHOOTING CHARTS................................................................................................429 TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE)...................................................................................431 ELECTRICAL CIRCUIT DIAGRAM..................................................................................................432 E-1 ENGINE DOES NOT START...................................................................................................436 E-2 ENGINE DOES NOT STOP....................................................................................................446 E-3 ENGINE PREHEATING PILOT LAMP DOES NOT GLOW..............................................................................448 E-4 ELECTRICAL COMPONENTS DO NOT WORK.......................................................................................450 TROUBLESHOOTING THE TRANSMISSION CONTROLLER SYSTEM (T MODE).....................................................................452 TRANSMISSION-CONTROLLER SYSTEM JUDGEMENT TABLE..............................................................................455 CONTROLLER ACTION WHEN PROBLEMS OCCUR WITH THE MACHINE......................................................................459 ELECTRICAL CIRCUIT DIAGRAM..................................................................................................479 T-1 FAILURE CODE [A1].......................................................................................................483 T-2 FAILURE CODE [A2].......................................................................................................484 T-3 FAILURE CODE [A-3]......................................................................................................485 T-4 FAILURE CODE [A4].......................................................................................................486 T-5 FAILURE CODE [A5].......................................................................................................487 T-6 FAILURE CODE [A8].......................................................................................................488 T-7 FAILURE CODE [B1].......................................................................................................489 T-8 FAILURE CODE [B2].......................................................................................................490 T-9 FAILURE CODE [B3].......................................................................................................491 T-10 FAILURE CODE [B4]......................................................................................................492 T-11 FAILURE CODE [B5]......................................................................................................493 T-12 FAILURE CODE [B6]......................................................................................................494 T-13 FAILURE CODE [B7]......................................................................................................495 T-14 FAILURE CODE [B8]......................................................................................................496 T-15 FAILURE CODE [C0]......................................................................................................497 T-16 FAILURE CODE [C1]......................................................................................................498 T-17 FAILURE CODE [C3]......................................................................................................499 T-18 FAILURE CODE [C4]......................................................................................................501 T-19 FAILURE CODE [C5]......................................................................................................503 T-20 FAILURE CODE [C6]......................................................................................................504 T-21 FAILURE CODE [C7]......................................................................................................505 T-22 FAILURE CODE [C8]......................................................................................................506 T-23 FAILURE CODE [C9]......................................................................................................507 T-24 FAILURE CODE [D1]......................................................................................................508 T-25 FAILURE CODE [D2]......................................................................................................509 T-26 FAILURE CODE [D4]......................................................................................................510 T-27 FAILURE CODE [D5]......................................................................................................511 T-28 FAILURE CODE [D6]......................................................................................................512 T-29 FAILURE CODE [D7]......................................................................................................513 T-30 FAILURE CODE [E1]......................................................................................................514 T-31 FAILURE CODE [E2]......................................................................................................515 T-32 FAILURE CODE [E3]......................................................................................................516 T-33 FAILURE CODE [E4]......................................................................................................518 T-34 FAILURE CODE [E5]......................................................................................................518 T-35 FAILURE CODE [E6]......................................................................................................519 T-36 FAILURE CODE [E7]......................................................................................................520 T-37 FAILURE CODE [E8]......................................................................................................520 T-38 FAILURE CODE [F1]......................................................................................................522 T-39 FAILURE CODE [F2]......................................................................................................522 T-40 FAILURE CODE [F3]......................................................................................................523 T-41 FAILURE CODE [F4]......................................................................................................524 T-42 FAILURE CODE [F5]......................................................................................................524 T-43 FAILURE CODE [F6]......................................................................................................525 T-44 FAILURE CODE [F7]......................................................................................................525 T-45 FAILURE CODE [F8]......................................................................................................526 T-46 FAILURE CODE [91]......................................................................................................527 T-47 FAILURE CODE [92]......................................................................................................527 T-48 FAILURE CODE [93]......................................................................................................528 T-49 FAILURE CODE [94]......................................................................................................529 T-50 FAILURE CODE [95]......................................................................................................529 T-51 FAILURE CODE [96]......................................................................................................530 T-52 FAILURE CODE [97]......................................................................................................530 T-53 FAILURE CODE [98]......................................................................................................532 TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (H MODE).....................................................................533 FAILURE TABLE: MODES AND CAUSES.............................................................................................534 H-1 ALL WORK EQUIPMENT IS SLOW OR LACKS POWER...............................................................................536 H-2 NO WORK EQUIPMENT MOVES.................................................................................................537 H-3 EXCESSIVE DROP IN ENGINE SPEED, OR ENGINE STALLS........................................................................537 H-4 ABNORMAL NOISE GENERATED AROUND THE PUMP................................................................................538 H-5 EXCESSIVE BLADE DRIFT...................................................................................................538 H-6 IMPOSSIBLE TO RAISE FRONT OF MACHINE USING THE BLADE....................................................................539 H-7 LACK OF ACTUATING POWER IN THE ARTICULATING DRAWBAR SHIFT, SCARIFIER, LEANING, AND BLADE SHIM CYLINDERS (LEFT,RIGHT)....539 H-8 EXCESSIVE LEANING CYLINDER DRIFT (TIRES LEAN)...........................................................................540 H-9 IMPOSSIBLE TO ROTATE THE CIRCLE.........................................................................................540 H-10 EXCESSIVE SCARIFIER DRIFT..............................................................................................541 H-11 MACHINE DOES NOT MOVE IN EITHER FORWARD OR REVERSE.....................................................................541 H-12 TRANSMISSION DOES NOT UPSHIFT OR DOWNSHIFT.............................................................................542 H-13 MACHINE IS SLOW OR LACKS POWER WHEN TRAVELING..........................................................................542 H-14 TORQUE COVERTER LOCK-UP MALFUNCTION....................................................................................543 H-15 EXCESSIVE TIME LAG WHEN STARTING OR SHIFTING GEAR......................................................................543 H-16 TORQUE CONVERTER OIL TEMPERATURE IS HIGH...............................................................................544 H-17 BRAKING FORCE IS INSUFFICIENT..........................................................................................545 TROUBLESHOOTING OF MAIN MONITOR SYSTEM (M MODE).................................................................................547 FAILURE TABLE: MODES AND CAUSES.............................................................................................548 ELECTRICAL CIRCUIT DIAGRAM FOR THE MAIN MONITOR SYSTEM......................................................................550 M-1 ENGINE OIL PRESSURE CAUTION LAMP GLOWS..................................................................................554 M-2 TRANSMISSION CONTROLLER CAUTION LAMP GLOWS..............................................................................555 M-3 TRANSMISSION OIL TEMPERATURE CAUTION LAMP GLOWS.........................................................................555 M-4 DIFFERENTIAL OIL TEMPERATURE CAUTION LAMP GLOWS (OPT)...................................................................556 M-5 BANK PIN CAUTION LAMP GLOWS.............................................................................................557 M-6 BRAKE OIL PRESSURE CAUTION LAMP GLOWS...................................................................................558 M-7 BATTERY CHARGE CAUTION LAMP GLOWS.......................................................................................559 M-8 PREHEATING DISPLAY DOES NOT LIGHT UP....................................................................................560 M-9 HIGH BEAM DISPLAY DOES NOT LIGHT UP.....................................................................................561 M-10 WORKING LAMP DISPLAY DOES NOT LIGHT UP (OPT)...........................................................................562 M-11 DIFFERENTIAL LOCK ACTUATION DISPLAY DOES NOT LIGHT UP (OPT)............................................................563 M-12 ACCUMULATOR ACTUATION DISPLAY DOES NOT LIGHT UP........................................................................564 M-13 FLOAT ACTUATION DISPLAY DOES NOT LIGHT UP..............................................................................564 M-14 PARKING BRAKE DISPLAY DOES NOT LIGHT UP................................................................................566 M-15 TURN SIGNAL LAMP DISPLAY DOES NOT FLASH................................................................................567 M-16 ARTICULATION GAUGE DOES NOT WORK.......................................................................................568 M-17 FUEL GAUGE DOES NOT WORK...............................................................................................570 M-18 ENGINE WATER TEMPERATURE GAUGE DOES NOT WORK...........................................................................572 M-19 TORQUE CONVERTER TEMPERATURE GAUGE DOES NOT WORK (OPT).................................................................573 M-20 MESSAGE CENTER DOES NOT WORK...........................................................................................574 M-21 SERVICE METER DOES NOT WORK............................................................................................575 30 DISASSEMBLY AND ASSEMBLY.............................................................................................................576 METHOD OF USING MANUAL..............................................................................................................578 PRECAUTIONS WHEN CARRYING OUT OPERATION.............................................................................................580 SPECIAL TOOL LIST...................................................................................................................583 SKETCHES OF SPECIAL TOOLS...........................................................................................................586 REMOVAL OF ENGINE HOOD ASSEMBLY (SERIAL NO.: 50001-51000)...........................................................................591 INSTALLATION OF ENGINE HOOD ASSEMBLY (SERIAL NO.: 50001-51000)......................................................................592 REMOVAL OF ENGINE HOOD ASSEMBLY (SERIAL NO.: 51001-UP)..............................................................................592 INSTALLATION OF ENGINE HOOD ASSEMBLY (SERIAL NO.: 51001-UP).........................................................................593 REMOVAL OF RADIATOR ASSEMBLY (SERIAL NO.:50001-51000)...............................................................................594 INSTALLATION OF RADIATOR ASSEMBLY (SERIAL NO.: 50001-51000).........................................................................595 REMOVAL OF RADIATOR ASSEMBLY (SERIAL NO.: 51001-UP).................................................................................596 INSTALLATION OF RADIATOR ASSEMBLY (SERIAL NO.: 51001-UP)............................................................................598 REMOVAL OF FUEL TANK, HYDRAULIC TANK, AND COOLING WATER SUB TANK ASSEMBLY (SERIAL NO.: 50001-51000).................................599 INSTALLATION OF FUEL TANK, HYDRAULIC TANK, AND COOLING WATER SUB TANK ASSEMBLY (SERIAL NO.: 50001-51000)............................601 REMOVAL OF FUEL TANK, HYDRAULIC TANK, AND COOLING WATER SUB TANK ASSEMBLY (SERIAL NO.: 51001-UP)....................................603 INSTALLATION OF FUEL TANK, HYDRAULIC TANK, AND COOLING WATER SUB TANK ASSEMBLY (SERIAL NO.: 51001-UP)...............................605 REMOVAL OF ENGINE ASSEMBLY..........................................................................................................606 INSTALLATION OF ENGINE ASSEMBLY.....................................................................................................607 REMOVAL OF ENGINE ASSEMBLY, TRANSMISSION ASSEMBLY AS ONE UNIT.......................................................................609 INSTALLATION OF ENGINE ASSEMBLY, TRANSMISSION ASSEMBLY AS ONE UNIT..................................................................610 REMOVAL OF TRANSMISSION ASSEMBLY....................................................................................................611 INSTALLATION OF TRANSMISSION ASSEMBLY...............................................................................................613 DISASSEMBLY OF TORQUE CONVERTER ASSEMBLY............................................................................................616 ASSEMBLY OF TORQUE CONVERTER ASSEMBLY...............................................................................................618 DISASSEMBLY OF TRANSMISSION ASSEMBLY................................................................................................622 ASSEMBLY OF TRANSMISSION ASSEMBLY...................................................................................................638 REMOVAL OF FINAL DRIVE ASSEMBLY.....................................................................................................659 INSTALLATION OF FINAL DRIVE ASSEMBLY................................................................................................662 DISASSEMBLY OF FINAL DRIVE ASSEMBLY.................................................................................................664 ASSEMBLY OF FINAL DRIVE ASSEMBLY....................................................................................................665 DISASSEMBLY OF FINAL BRAKE CASE.....................................................................................................668 ASSEMBLY OF FINAL BRAKE CASE........................................................................................................669 DISASSEMBLY OF SIDE CASE............................................................................................................671 ASSEMBLY OF SIDE CASE...............................................................................................................672 DISASSEMBLY OF DIFFERENTIAL GEAR ASSEMBLY...........................................................................................674 ASSEMBLY OF DIFFERENTIAL GEAR ASSEMBLY..............................................................................................675 DISASSEMBLY OF BEVEL GEAR...........................................................................................................678 ASSEMBLY OF BEVEL GEAR..............................................................................................................679 DISASSEMBLY OF BEVEL PINION ASSEMBLY................................................................................................680 ASSEMBLY OF BEVEL PINION ASSEMBLY...................................................................................................681 REMOVAL OF OPERATOR'S CAB ASSEMBLY..................................................................................................682 INSTALLATION OF OPERATOR'S CAB ASSEMBLY.............................................................................................684 REMOVAL OF OPERATOR'S CAB FLOOR.....................................................................................................686 INSTALLATION OF OPERATOR'S CAB FLOOR................................................................................................688 REMOVAL OF STEERING VALVE (ORBIT-ROLL)..............................................................................................690 INSTALLATION OF STEERING VALVE (ORBIT-ROLL).........................................................................................690 STANDARD INTEGRAL ORBIT-ROLL........................................................................................................691 DISASSEMBLY OF STEERING VALVE.......................................................................................................693 ASSEMBLY OF STEERING VALVE..........................................................................................................696 REMOVAL OF BLADE ASSEMBLY...........................................................................................................701 INSTALLATION OF BLADE ASSEMBLY......................................................................................................701 REMOVAL OF CIRCLE DRAWBAR ASSEMBLY..................................................................................................702 INSTALLATION OF CIRCLE DRAWBAR ASSEMBLY.............................................................................................703 REMOVAL OF BLADE CIRCLE GEAR ASSEMBLY...............................................................................................704 INSTALLATION OF BLADE CIRCLE GEAR ASSEMBLY..........................................................................................705 REMOVAL OF BLADE CIRCLE ROTATION GEAR ASSEMLBY (WITH SHEAR PIN).....................................................................706 INSTALLATION OF BLADE CIRCLE ROTATION GEAR ASSEMBLY (WITH SHEAR PIN)................................................................707 DISASSEMBLY OF BLADE CIRCLE ROTATION GEAR ASSEMBLY (WITH SHEAR PIN).................................................................708 ASSEMBLY OF BLADE CIRCLE ROTATION GEAR ASSEMBLY (WITH SHEAR PIN)....................................................................710 DISASSEMBLY OF CIRCLE ROTATING GEAR ASSEMBLY (WITH SLIP CLUTCH).....................................................................712 ASSEMBLY OF CIRCLE ROTATING GEAR ASSEMBLY (WITH SLIP CLUTCH)........................................................................714 90 OTHERS...............................................................................................................................718 TRANSMISSION HYDRAULIC CIRCUIT SERIAL NO.: 50001-51000..............................................................................719 TRANSMISSION HYDRAULIC CIRCUIT SERIAL NO.: 51001 AND UP.............................................................................720 HYDRAULIC CIRCUIT DIAGRAM SERIAL NO.:50001-51000....................................................................................721 HYDRAULIC CIRCUIT DIAGRAM (1/2) SERIAL NO.:51001 AND UP.............................................................................722 HYDRAULIC CIRCUIT DIAGRAM (2/2) SERIAL NO.:51001 AND UP.............................................................................723 ELECTRICAL CIRCUIT DIAGRAM (1/6) SERIAL NO.: 50001-51000............................................................................724 ELECTRICAL CIRCUIT DIAGRAM (2/6) SERIAL NO.: 50001-51000............................................................................725 ELECTRICAL CIRCUIT DIAGRAM (3/6) SERIAL NO.: 50001-51000............................................................................726 ELECTRICAL CIRCUIT DIAGRAM (4/6) SERIAL NO.: 50001-51000............................................................................727 ELECTRICAL CIRCUIT DIAGRAM (5/6) SERIAL NO.: 50001-51000............................................................................728 ELECTRICAL CIRCUIT DIAGRAM (6/6) SERIAL NO.: 50001-51000............................................................................729 ELECTRICAL CIRCUIT DIAGRAM (1/6) SERIAL NO.: 51001 AND UP...........................................................................730 ELECTRICAL CIRCUIT DIAGRAM (2/6) SERIAL NO.: 51001 AND UP...........................................................................731 ELECTRICAL CIRCUIT DIAGRAM (3/6) SERIAL NO.: 51001 AND UP...........................................................................732 ELECTRICAL CIRCUIT DIAGRAM (4/6) SERIAL NO.: 51001 AND UP...........................................................................733 ELECTRICAL CIRCUIT DIAGRAM (5/6) SERIAL NO.: 51001 AND UP...........................................................................734 ELECTRICAL CIRCUIT DIAGRAM (6/6) SERIAL NO.: 51001 AND UP...........................................................................735
DESCRIPTION:
KOMATSU GD555-3C GD655-3C GD675-3C SHOP MANUAL SEBM020905 – PDF DOWNLOAD
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.
S.S 29/12/24
