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Komatsu PC300LL-7L GALEO Hydraulic Excavator Shop Manual A85001 and up – PDF DOWNLOAD
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Komatsu PC300LL-7L GALEO Hydraulic Excavator Shop Manual
SERIAL NUMBERS PC300LL-7L A85001 and UP
Book Code: CEBM012100
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Description
Komatsu PC300LL-7L GALEO Hydraulic Excavator Shop Manual
FILE DETAILS:
Komatsu PC300LL-7L GALEO Hydraulic Excavator Shop Manual
Brands: Komatsu
Equipment Type: Hydraulic Excavator
Manuals Type: Shop Manual
Machine Model: PC300LL-7L GALEO
Serial Number: A85001 and up
Book Code: CEBM012100
Language: English
Pages: 676
File Format: Portable Document Format (PDF)
DESCRIPTION:
Komatsu PC300LL-7L GALEO Hydraulic Excavator 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 sections. These sections are further divided into each main group of components.
GENERAL:
This section lists the general machine dimensions, performance specifications, component weights, and fuel, coolant and lubricant specification charts.
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.
TESTING, ADJUSTING AND TROUBLESHOOTING:
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” to “Causes” are also included in this section.
DISASSEMBLY AND ASSEMBLY:
This section explains the order to be followed when removing, installing, disassembling or assembling each component, as well as precautions to be taken for these operations.
MAINTENANCE STANDARD:
This section gives the judgement standards when inspecting disassembled parts.
TABLE OF CONTENTS:
Komatsu PC300LL-7L GALEO Hydraulic Excavator Shop Manual
MAIN MENU.................................................................................. 0 COVER...................................................................................... 1 CONTENTS................................................................................... 2 SAFETY..................................................................................... 5 SAFETY NOTICE.......................................................................... 5 FOREWARD................................................................................... 7 GENERAL................................................................................ 7 HOW TO READ THE SHOP MANUAL............................................................ 8 HOISTING INSTRUCTIONS.................................................................. 9 COATING MATERIALS...................................................................... 10 STANDARD TIGHTENING TORQUE............................................................. 12 ELECTRIC WIRE CODE..................................................................... 17 CONVERSION TABLES...................................................................... 18 UNITS.................................................................................. 23 01 GENERAL................................................................................. 25 DIMENSION DRAWINGS..................................................................... 26 DIMENSIONS......................................................................... 26 WORKING RANGES..................................................................... 28 SPECIFICATIONS......................................................................... 30 WEIGHT TABLE........................................................................... 33 POWERED CAB RISER TILT UNIT TARGETS.................................................... 35 FUEL COOLANT AND LUBRICANTS............................................................ 36 PC300LL-7L......................................................................... 36 10 STRUCTURE AND FUNCTION.................................................................. 37 ENGINE RELATED PARTS................................................................... 39 RADIATOR . OIL COOLER . AFTERCOOLER.................................................... 40 FINAL DRIVE SYSTEM..................................................................... 42 PC300LL-7L......................................................................... 42 SWING MACHINERY........................................................................ 45 SWING CIRCLE........................................................................... 48 TRACK FRAME . RECOIL SPRING............................................................ 50 PC300LL-7L......................................................................... 50 IDLER.................................................................................. 51 TRACK ROLLER........................................................................... 53 TRACK SHOE............................................................................. 54 TRIPLE GROUSER SHOE.................................................................... 56 HYDRAULIC EQUIPMENT.................................................................... 57 HYDRAULIC TANK......................................................................... 59 HYDRAULIC PUMP......................................................................... 60 HPV125 + 125....................................................................... 60 LS VALVE........................................................................... 65 PC VALVE........................................................................... 65 LS(PC)-EPC VALVE................................................................... 77 VARIABLE VOLUME VALVE.................................................................. 80 CONTROL VALVE.......................................................................... 82 MAIN RELIEF VALVE.................................................................. 93 VARIABLE PRESSURE COMPENSATION VALVE............................................... 94 CLSS................................................................................... 95 SELF PRESSURE REDUCING VALVE........................................................... 98 SWING MOTOR............................................................................101 SUCTION-SAFETY VALVE...............................................................104 SWING BRAKE........................................................................105 CENTER SWIVEL JOINT....................................................................106 PC300LL-7L.........................................................................107 MOTOR OPERATION................................................................109 PARKING BRAKE OPERATION........................................................111 BRAKE VALVE OPERATION..............................................................112 TRAVEL JUNCTION VALVE..................................................................116 TRAVEL PPC SHUTTLE VALVE...............................................................118 VALVE CONTROL..........................................................................122 WORK EQUIPMENT . SWING PPC VALVE.......................................................123 TRAVEL PPC VALVE.......................................................................127 ATTACHMENT SOLENOID VALVE..............................................................136 PPC ACCUMULATOR........................................................................138 BOOM HYDRAULIC DRIFT PREVENTION VALVE..................................................139 QUICK RETURN VALVE.....................................................................145 LIFT CHECK VALVE.......................................................................147 HYDRAULIC CYLINDER.....................................................................148 BOOM CYLINDER......................................................................148 ARM CYLINDER.......................................................................148 BUCKET CYLINDER....................................................................149 WORK EQUIPMENT.........................................................................150 DIMENSION OF ARM...................................................................152 DIMENSION OF BUCKET................................................................154 AIR CONDITIONER........................................................................156 PIPING.............................................................................156 ENGINE CONTROL.........................................................................157 FUEL CONTROL DIAL..................................................................159 GOVERNOR MOTOR.....................................................................160 ENGINE THROTTLE AND PUMP CONTROLLER................................................161 INPUT AND OUTPUT SIGNALS.......................................................162 ELECTRONIC CONTROL SYSTEM..............................................................163 TOTAL SYSTEM DIAGRAM...............................................................164 MULTI MONITOR SYSTEM...................................................................187 MONITOR PANEL......................................................................188 MONITOR CONTROL, DISPLAY PORTION /MONITOR PORTION..................................190 MAINTENANCE FUNCTION...............................................................201 SENSORS................................................................................206 ENGINE OIL LEVEL SENSOR............................................................206 ENGINE OIL PRESSURE SENSOR (FOR LOW PRESSURE)......................................206 COOLANT TEMPERATURE SENSOR.........................................................207 HYDRAULIC OIL TEMPERATURE SENSOR...................................................207 FUEL LEVEL SENSOR..................................................................208 AIR CLEANER CLOGGING SENSOR........................................................208 CAB RISER AND RELATED PARTS............................................................209 POWER CONTROL......................................................................210 STRESS TARGETS FOR CAB RISER KIT...................................................211 CAB RISER HYDRAULIC SYSTEM.............................................................212 20 TESTING, ADJUSTING AND TROUBLESHOOTING..................................................213 STANDARD VALUE TABLES..................................................................215 ENGINE RELATED.....................................................................215 CHASSIS RELATED....................................................................216 SERVICE TOOLS..........................................................................224 ENGINE.................................................................................224 AIR BOOST PRESSURE.................................................................224 AIR COMPRESSOR BELT TENSION........................................................224 BLOW-BY PRESSURE...................................................................224 COMPRESSION PRESSURE...............................................................224 ENGINE OIL PRESSURE................................................................224 ENGINE RPM.........................................................................224 ENGINE SPEED SENSOR................................................................225 EXHAUST GAS COLOR..................................................................225 FUEL INJECTION TIMING..............................................................225 VALVE CLEARANCE....................................................................225 EMERGENCY ESCAPE FROM ENGINE CONTROL FAILURE...........................................226 SWING CIRCLE BEARINGS..................................................................226 TRACK SHOE TENSION.....................................................................227 SPROCKET...............................................................................228 OIL PRESSURE...........................................................................228 WORK EQUIPMENT, SWING AND TRAVEL...................................................228 CONTROL CIRCUIT....................................................................233 PUMP PC CONTROL CIRCUIT............................................................234 PUMP LS CONTROL CIRCUIT............................................................237 ATTACHMENT SOLENOID VALVE OUTPUT...................................................241 ATTACHMENT PPC VALVE OUTPUT........................................................244 WORK EQUIPMENT AND SWING PPC VALVE.....................................................245 WORK EQUIPMENT, HYDRAULIC DRIFT LOCATIONS..............................................245 RELEASE OF REMAINING PRESSURE IN HYDRAULIC CIRCUIT.................................246 BOOM AND BUCKET CYLINDERS..........................................................246 BOOM LOCK VALVE....................................................................246 ARM CYLINDER.......................................................................247 PPC VALVE..........................................................................247 OIL LEAKAGE AMOUNT.....................................................................249 BOOM CYLINDER......................................................................249 ARM CYLINDER.......................................................................249 BUCKET CYLINDER....................................................................250 SWING MOTOR........................................................................250 TRAVEL MOTOR.......................................................................250 AIR BLEEDING OF VARIOUS PARTS..........................................................251 DIODE INSPECTION PROCEDURES............................................................253 MULTI-MONITOR PANEL....................................................................254 MONITOR PANEL FUNCTIONS............................................................255 OPERATOR’S MENU AND DISPLAY (OUTLINE)..............................................256 TABLE FOR SERVICE AND FAILURE CODE NOS.............................................261 SERVICE MENU.......................................................................263 WAY OF SWITCHING TO SERVICE MENU...............................................263 TABLE FOR MONITORING ITEMS.....................................................266 ELECTRICAL SYSTEM TROUBLESHOOTING PREPARTIONS..........................................278 PM TUNE SERVICE........................................................................279 TROUBLESHOOTING (GENERAL)..............................................................283 POINTS TO REMEMBER WHEN TROUBLESHOOTING............................................284 SEQUENCE OF EVENTS IN TROUBLESHOOTING..............................................286 PRECAUTIONS WHEN CARRYING OUT MAINTENANCE..........................................287 PRECAUTIONS WHEN HANDLING ELECTRIC EQUIPMENT...................................287 HANDLING CONTROL BOX...........................................................292 POINTS TO REMEMBER WHEN TROUBLESHOOTING ELECTRIC CIRCUITS......................293 POINTS TO REMEMBER WHEN HANDLING HYDRAULIC EQUIPMENT...........................294 CHECKS BEFORE TROUBLESHOOTING......................................................296 CATEGORIES, PROCEDURE, AND METHOD OF USING TROUBLESHOOTING CHARTS..............297 PHENOMENA CONSIDERED TO BE FAILURES AND TROUBLESHOOTING NO.....................298 CONNECTION TABLE FOR CONNECTOR PIN NUMBERS.........................................301 T-ADAPTER TABLE....................................................................325 TROUBLESHOOTING ELECTRICAL SYSTEM (E MODE).........................................329 POINTS TO REMEMBER WHEN TROUBLESHOOTING SYSTEM.................................331 ABNORMALITY RETURNS TO NORMAL BY ITSELF....................................331 USER CODE MEMORY RETENTION FUNCTION........................................331 INFORMATION CONTAINED IN TESTING PROCEDURES....................................332 (E101).........................................................................334 ABNORMAL DATA IN ERROR HISTORY.............................................334 (E112).........................................................................336 SHORT IN WINDSHIELD WIPER MOTOR DRIVE FORWARD ROTATION.....................336 (E113).........................................................................338 SHORT IN WINDSHIELD WIPER MOTOR DRIVE REVERSE ROTATION.....................338 (E114).........................................................................340 SHORT OR OPEN IN WINDOW WASHER SYSTEM......................................340 (E115).........................................................................342 ABNORMAL WINDSHIELD WIPER MOTION...........................................342 (E116).........................................................................344 ABNORMALITY IN PARKING WIPER ARM...........................................344 (E201).........................................................................346 SHORT OR OPEN IN TRAVEL INTERLOCKING SOLENOID..............................346 (E203).........................................................................348 SHORT IN SWING AND PARKING SOLENOID GOVERNOR SYSTEM........................348 (E204).........................................................................350 SHORT IN MERGE/DIVIDE SOLENOID.............................................350 (E205).........................................................................352 SHORT IN 2 STAGE RELIEF SOLENOID...........................................352 (E206).........................................................................354 SHORT IN TRAVEL SPEED SHIFT SOLENOID.......................................354 (E211).........................................................................356 OPEN IN TRAVEL INTERLOCKING SOLENOID.......................................356 (E213).........................................................................358 OPEN IN SWING PARKING BRAKE SOLENOID.......................................358 (E214).........................................................................360 OPEN OF MERGE/DIVIDE SOLENOID..............................................360 (E215).........................................................................362 OPEN IN 2 STAGE RELIEF SOLENOID............................................362 (E216).........................................................................364 OPEN IN TRAVEL SPEED SOLENOID..............................................364 (E217).........................................................................366 ABNORMAL INPUT FOR MODEL CODE..............................................366 (E218).........................................................................368 OPEN IN S-NET SIGNAL.......................................................368 (E222).........................................................................370 SHORT IN LS-EPC SOLENOID...................................................370 (E223).........................................................................372 OPEN IN LS-EPC SOLENOID SYSTEM.............................................372 (E224).........................................................................374 ABNORMAL F-PUMP PRESSURE SENSOR SIGNAL.....................................374 (E225).........................................................................376 ABNORMAL R-PUMP PRESSURE SENSOR SIGNAL.....................................376 (E226).........................................................................378 ABNORMAL PRESSURE SENSOR POWER SUPPLY......................................378 (E227).........................................................................380 ABNORMAL ENGINE RPM SIGNAL IN GOVERNOR PUMP CONTROLLER.....................380 (E228).........................................................................382 SHORT IN ATTACHMENT RETURN SWITCHING RELAY.................................382 (NO CODE)......................................................................384 SHORT OR OPEN IN ATTACHMENT SOLENOID SYSTEM................................384 (NO CODE)......................................................................387 OPEN IN CAB TILT SYSTEM....................................................387 (E232).........................................................................389 SHORT IN PC-EPC SOLENOID...................................................389 (E233).........................................................................391 OPEN IN PC-EPC SOLENOID SYSTEM.............................................391 (E238).........................................................................393 OPEN IN ATTACHMENT RETURN SWITCH RELAY.....................................393 (E245).........................................................................395 SHORT IN ATTACHMENT OIL FLOW RATE EPC SYSTEM...............................395 (E246).........................................................................397 OPEN IN ATTACHMENT OIL FLOW RATE EPC SYSTEM................................397 (E256).........................................................................399 INCORRECT NON-VOLATILE MEMORY DATA.........................................399 (E304).........................................................................401 SHORT IN ENGINE STOP SOLENOID SYSTEM.......................................401 (E314).........................................................................403 OPEN IN ENGINE STOP SOLENOID SYSTEM........................................403 (E306).........................................................................405 ABNORMAL GOVERNOR POTENTIOMETER SIGNALS....................................405 (E308).........................................................................407 ABNORMAL FUEL DIAL SIGNALS.................................................407 (E315).........................................................................409 SHORT IN BATTERY RELAY SYSTEM..............................................409 (E316).........................................................................411 STEP OUT IN GOVERNOR MOTOR.................................................411 (E317).........................................................................413 OPEN IN GOVERNOR MOTOR PHASE “A” AND “B”...................................413 (E318).........................................................................415 SHORT IN GOVERNOR MOTOR PHASE “A” AND “B”..................................415 (E501).........................................................................417 MODEL SELECTION FUNCTION NOT PROVIDED......................................417 (E502).........................................................................418 MODEL SELECTING SIGNAL FAULT...............................................418 (AA10NX).......................................................................419 AIR CLEANER CLOG INDICATOR FAILURE.........................................419 (AB00KE).......................................................................420 LOW CHARGING VOLTAGE INDICATED.............................................420 (B@BAZG).......................................................................422 ABNORMAL ENGINE OIL PRESSURE...............................................422 (B@BAZK).......................................................................423 ABNORMAL ENGINE OIL LEVEL..................................................423 (B@BCNS).......................................................................424 ENGINE COOLANT INDICATING OVERHEAT CONDITION...............................424 (B@BCZK).......................................................................425 ABNORMAL COOLANT LEVEL INDICATION..........................................425 (B@HANS).......................................................................426 HYDRAULIC OIL OVERHEAT INDICATION..........................................426 TROUBLESHOOTING MONITOR ELECTRICAL SYSTEM (E MODE).................................427 POINTS TO REMEMBER WHEN TROUBLESHOOTING SYSTEM.................................428 POINTS TO REMEMBER IF ABNORMALITY RETURNS TO NORMAL BY ITSELF..............428 USER CODE MEMORY RETENTION FUNCTION........................................428 INFORMATION CONTAINED IN TESTING PROCEDURES....................................429 (E-1)..........................................................................431 ENGINE WILL NOT CRANK......................................................431 (E-2)..........................................................................433 ENGINE STOPS WHILE IN OPERATION............................................433 (E-3)..........................................................................435 ENGINE SPEED IRREGULAR, OR HUNTING.........................................435 (E-4)..........................................................................437 ENGINE DOES NOT SHUT DOWN..................................................437 (E-5)..........................................................................439 AUTO DECELERATOR DOES NOT WORK.............................................439 (E-6)..........................................................................440 AUTO ENGINE WARM UP DEVICE DOES NOT WORK...................................440 (E-7)..........................................................................441 COLD START PREHEATER DOES NOT WORK.........................................441 (E-8)..........................................................................443 ALL WORK EQUIPMENT, SWING AND TRAVEL DO NOT OPERATE........................443 (E-9)..........................................................................445 ONE TOUCH POWER MAX SWITCH DOES NOT OPERATE................................445 (E-10).........................................................................447 NO DISPLAY ON MONITOR PANEL................................................447 (E-11).........................................................................449 PART OF DISPLAY ON MONITOR PANEL IS MISSING................................449 (E-12).........................................................................450 MONITOR PANEL DISPLAYS CONTENTS IRRELEVANT TO THE MODEL....................450 (E-13).........................................................................451 FUEL LEVEL INDICATOR LAMP LIGHTS UP WHEN FUEL TANK IS FULL.................451 (E-14).........................................................................453 ENGINE COOLANT TEMPERATURE GAUGE DOES NOT INDICATE CORRECTLY...............453 (E-15).........................................................................455 HYDRAULIC OIL TEMPERATURE GAUGE DOES NOT DISPLAY CORRECTLY.................455 (E-16).........................................................................457 FUEL GAUGE DOES NOT DISPLAY CORRECTLY......................................457 (E-17).........................................................................459 SWING LOCK MONITOR DOES NOT DISPLAY CORRECTLY..............................459 (E-18).........................................................................461 WHEN THE MONITOR SWITCH IS OPERATED, NO DISPLAY APPEARS....................461 (E-19).........................................................................463 WINDSHIELD WIPER DOES NOT WORK.............................................463 (E-20).........................................................................465 ALARM BUZZER CANNOT BE CANCELLED...........................................465 (E-21).........................................................................467 BOOM RAISE NOT CORRECTLY DISPLAYED ON MONITOR..............................467 (E-22).........................................................................469 BOOM LOWER NOT CORRECTLY DISPLAYED ON MONITOR..............................469 (E-23).........................................................................471 ARM EXTEND NOT CORRECTLY DISPLAYED ON MONITOR..............................471 (E-24).........................................................................473 ARM RETRACT NOT CORRECTLY DISPLAYED ON MONITOR.............................473 (E-25).........................................................................475 BUCKET CURL NOT CORRECTLY DISPLAYED ON MONITOR.............................475 (E-26).........................................................................477 BUCKET DUMP NOT CORRECTLY DISPLAYED ON MONITOR.............................477 (E-27).........................................................................479 SWING NOT CORRECTLY DISPLAYED ON MONITOR...................................479 (E-28).........................................................................481 TRAVEL NOT CORRECTLY DISPLAYED ON MONITOR..................................481 (E-29).........................................................................483 TRAVEL DIFFERENTIAL PRESSURE NOT CORRECTLY DISPLAYED ON MONITOR............483 (E-30).........................................................................485 SERVICE NOT CORRECTLY DISPLAYED ON MONITOR.................................485 (E-31).........................................................................487 AIR CONDITIONER SYSTEM DOES NOT WORK.......................................487 (E-32).........................................................................491 TRAVEL ALARM DOES NOT SOUND................................................491 TROUBLESHOOTING HYDRAULIC AND MECHANICAL SYSTEM (H MODE)...........................495 SYSTEM CHART FOR HYDRAULIC AND MECHANICAL SYSTEMS..............................497 INFORMATION CONTAINED IN TROUBLESHOOTING TABLE.................................500 (H-1)..........................................................................501 ALL WORK EQUIPMENT LACK POWER, OR TRAVEL AND SWING SPEEDS ARE SLOW.........501 (H-2)..........................................................................502 ENGINE SPEED DROPS SHARPLY OR ENGINE STALLS................................502 (H-3)..........................................................................503 NO WORK EQUIPMENT, TRAVEL OR SWING MOVEMENT................................503 (H-4)..........................................................................503 ABNORMAL NOISE IS HEARD FROM HYDRAULIC PUMP................................503 (H-5)..........................................................................504 AUTO-DECELERATOR DOES NOT WORK.............................................504 (H-6)..........................................................................504 FINE CONTROL MODE DOES NOT FUNCTION........................................504 (H-7)..........................................................................505 BOOM MOVES SLOWLY OR LACKS POWER...........................................505 (H-8)..........................................................................506 ARM MOVES SLOWLY OR LACKS POWER............................................506 (H-9)..........................................................................507 BUCKET MOVES SLOWLY OR LACKS POWER.........................................507 (H-10).........................................................................508 WORK EQUIPMENT DOES NOT MOVE IN A SINGLE OPERATION.........................508 (H-11).........................................................................509 WORK EQUIPMENT HAS EXCESSIVE HYDRAULIC DRIFT...............................509 (H-12).........................................................................510 WORK EQUIPMENT HAS EXCESSIVE LAG TIME......................................510 (H-13).........................................................................511 OTHER WORK EQUIPMENT MOVES WHEN RELIEVING A SINGLE CIRCUIT.................511 (H-14).........................................................................511 ONE-TOUCH POWER MAX. SWITCH DOES NOT OPERATE...............................511 (H-15).........................................................................511 IN A COMPOUND OPERATION, WORK EQUIPMENT WITH LARGER LOADS MOVES SLOWLY.....511 (H-16).........................................................................512 IN SWING AND BOOM RAISE OPERATION, BOOM MOVES SLOWLY.......................512 (H-17).........................................................................512 IN SWING + TRAVEL, TRAVEL SPEED DROPS SHARPLY..............................512 (H-18).........................................................................513 MACHINE SWERVES WHEN TRAVELING.............................................513 (H-19).........................................................................514 MACHINE TRAVELS SLOWLY.....................................................514 (H-20).........................................................................515 MACHINE CANNOT BE STEERED EASILY OR LACKS POWER............................515 (H-21).........................................................................516 TRAVEL SPEED DOES NOT SHIFT, OR IT IS TOO SLOW OR FAST DURING SHIFTING.....516 (H-22).........................................................................516 TRACK SHOES DO NOT TURN (ON ONE SIDE ONLY).................................516 (H-23).........................................................................517 MACHINE DOES NOT SWING.....................................................517 (H-24).........................................................................518 SWING ACCELERATION IS POOR, OR SWING SPEED IS SLOW.........................518 (H-25).........................................................................519 EXCESSIVE OVERRUN WHEN STOPPING SWING......................................519 (H-26).........................................................................520 THERE IS A SUDDEN SHOCK WHEN STOPPING SWING................................520 (H-27).........................................................................520 ABNORMAL NOISE CAUSED WHEN STOPPING SWING..................................520 (H-28).........................................................................521 SWING NATURAL DRIFT IS EXCESSIVE...........................................521 30 DISASSEMBLY AND ASSEMBLY................................................................523 METHOD OF USING MANUAL.................................................................525 PRECAUTIONS DURING OPERATION...........................................................527 PRECAUTIONS WHEN CARRYING OUT REMOVAL WORK.........................................527 PRECAUTIONS WHEN CARRYING OUT INSTALLATION WORK....................................528 PRECAUTIONS WHEN COMPLETING THE OPERATIONS.........................................529 OTHER PRECAUTIONS..................................................................529 SPECIAL TOOL LIST......................................................................530 SKETCHES OF SPECIAL TOOLS..............................................................533 CONNECTOR REPAIR PROCEDURES............................................................535 CONTACT TERMINAL REMOVAL (HD30 TYPE)...............................................535 STRIPING INSULATION................................................................536 CRIMPING CONTACT TERMINAL (HD30 TYPE)..............................................537 INSERTION OF CONTACT TERMINAL (HD30 TYPE)..........................................538 CONTACT TERMINAL REMOVAL (DT TYPE).................................................539 STRIPING INSULATION................................................................540 CRIMPING CONTACT TERMINAL (DT TYPE)................................................541 INSERTION OF CONTACT TERMINAL (DT TYPE)............................................542 ENGINE.................................................................................543 ALTERNATOR.........................................................................543 CYLINDER HEAD......................................................................543 ENGINE FRONT SEAL..................................................................543 ENGINE OIL COOLER..................................................................543 ENGINE REAR SEAL...................................................................543 FUEL INJECTION PUMP................................................................543 NOZZLE HOLDER......................................................................543 STARTING MOTOR.....................................................................543 THERMOSTAT.........................................................................543 TURBOCHARGER.......................................................................543 WATER PUMP.........................................................................543 RADIATOR...............................................................................544 REMOVAL............................................................................544 INSTALLATION.......................................................................545 HYDRAULIC OIL COOLER...................................................................546 REMOVAL............................................................................546 INSTALLATION.......................................................................547 ENGINE AND HYDRAULIC PUMPS.............................................................548 REMOVAL............................................................................548 INSTALLATION.......................................................................552 FINAL DRIVE............................................................................553 REMOVAL............................................................................553 INSTALLATION.......................................................................553 DISASSEMBLY........................................................................554 ASSEMBLY...........................................................................558 TRAVEL MOTOR...........................................................................564 DISASSEMBLY........................................................................564 ASSEMBLY...........................................................................568 SWING MOTOR............................................................................578 REMOVAL............................................................................578 INSTALLATION.......................................................................578 DISASSEMBLY........................................................................579 ASSEMBLY...........................................................................581 SWING MACHINERY........................................................................588 REMOVAL............................................................................588 INSTALLATION.......................................................................588 DISASSEMBLY........................................................................589 ASSEMBLY...........................................................................592 IDLER AND RECOIL SPRING................................................................597 REMOVAL............................................................................597 INSTALLATION.......................................................................597 IDLER..............................................................................598 RECOIL SPRING......................................................................602 TRACK ROLLER...........................................................................604 REMOVAL............................................................................604 INSTALLATION.......................................................................604 DISASSEMBLY........................................................................605 ASSEMBLY...........................................................................606 SPROCKET...............................................................................609 REMOVAL............................................................................609 INSTALLATION.......................................................................609 TRACK SHOE.............................................................................610 EXPANSION OF TRACK SHOE............................................................610 ASSEMBLY...........................................................................611 SWING CIRCLE...........................................................................612 REMOVAL............................................................................612 INSTALLATION.......................................................................612 REVOLVING FRAME........................................................................613 REMOVAL............................................................................613 INSTALLATION.......................................................................615 CENTER SWIVEL JOINT....................................................................616 REMOVAL............................................................................616 INSTALLATION.......................................................................617 DISASSEMBLY........................................................................618 ASSEMBLY...........................................................................618 HYDRAULIC TANK.........................................................................619 REMOVAL............................................................................619 INSTALLATION.......................................................................620 CONTROL VALVE..........................................................................621 REMOVAL............................................................................621 INSTALLATION.......................................................................623 REPLACING PRESSURE COMPENSATION VALVE SEAL.............................................624 ASSEMBLY...........................................................................625 HYDRAULIC PUMP.........................................................................626 REMOVAL............................................................................626 INSTALLATION.......................................................................628 INPUT SHAFT OIL SEAL...............................................................629 WORK EQUIPMENT PPC VALVE...............................................................630 ASSEMBLY...........................................................................630 TRAVEL PPC VALVE.......................................................................631 ASSEMBLY...........................................................................631 HYDRAULIC CYLINDER.....................................................................632 DISASSEMBLY........................................................................632 ASSEMBLY...........................................................................634 WORK EQUIPMENT.........................................................................638 REMOVAL............................................................................638 INSTALLATION.......................................................................639 AIR CONDITIONER........................................................................641 REMOVAL............................................................................641 INSTALLATION.......................................................................644 COUNTERWEIGHT..........................................................................645 REMOVAL............................................................................645 INSTALLATION.......................................................................645 OPERATOR’S CAB.........................................................................646 REMOVAL............................................................................646 INSTALLATION.......................................................................648 MONITOR................................................................................649 REMOVAL............................................................................649 INSTALLATION.......................................................................649 GOVERNOR PUMP CONTROLLER...............................................................650 REMOVAL............................................................................650 INSTALLATION.......................................................................650 90 OTHERS..................................................................................651 ELECTRICAL.............................................................................653 ELECTRICAL DIAGRAM 1/4 (SHEET 1 OF 3) FOLDOUT 1....................................653 ELECTRICAL DIAGRAM 1/4 (SHEET 2 OF 3) FOLDOUT 2....................................655 ELECTRICAL DIAGRAM 1/4 (SHEET 3 OF 3) FOLDOUT 3....................................657 ELECTRICAL DIAGRAM 2/4 (SHEET 1 OF 1) FOLDOUT 4....................................659 ELECTRICAL DIAGRAM 3/4 (SHEET 1 OF 2) FOLDOUT 5....................................661 ELECTRICAL DIAGRAM 3/4 (SHEET 2 OF 2) FOLDOUT 6....................................663 ELECTRICAL DIAGRAM 4/4 (SHEET 1 OF 2) FOLDOUT 7....................................665 ELECTRICAL DIAGRAM 4/4 (SHEET 2 OF 2) FOLDOUT 8....................................667 HYDRAULIC..............................................................................669 HYDRAULIC DIAGRAM (SHEET 1 OF 3) FOLDOUT 9.........................................669 HYDRAULIC DIAGRAM (SHEET 2 OF 3) FOLDOUT 10........................................671 HYDRAULIC DIAGRAM (SHEET 3 OF 3) FOLDOUT 11........................................673
KOMATSU PC300LL-7L GALEO HYDRAULIC EXCAVATOR SHOP MANUAL A85001 AND UP – PDF DOWNLOAD:
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- This is the SAME manual used by the dealers to troubleshoot any faults in your vehicle. This can be yours in 2 minutes after the payment is made.
- Contact us at [email protected] should you have any queries before your purchase or that you need any other service / repair / parts operators manual.
