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Komatsu PC270LL-7L GALEO Logging Excavator Shop Manual A86001 and up – PDF DOWNLOAD
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Komatsu PC270LL-7L GALEO Logging Excavator Shop Manual
Book Code: CEBM014600
SERIAL NUMBERS : PC270LL-7L A86001 and UP
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Description
Komatsu PC270LL-7L GALEO Logging Excavator Shop Manual
FILE DETAILS:
Komatsu PC270LL-7L GALEO Logging Excavator Shop Manual
Brands: Komatsu
Equipment Type: Logging Excavator
Manuals Type: Shop Manual
Machine Model: PC270LL-7L GALEO
Serial Number: A86001 and up
Book Code: CEBM014600
Language: English
Pages: 694
File Format: Portable Document Format (PDF)
DESCRIPTION:
Komatsu PC270LL-7L GALEO Logging 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 PC270LL-7L GALEO Logging Excavator Shop Manual
MAIN MENU.................................................................................. 0 COVER...................................................................................... 1 CONTENTS................................................................................... 2 FOREWORD................................................................................... 2 SAFETY................................................................................. 5 SAFETY NOTICE...................................................................... 5 IMPORTANT SAFETY NOTICE............................................................ 5 GENERAL PRECAUTIONS................................................................ 5 PREPARATIONS FOR WORK.............................................................. 5 PRECAUTIONS DURING WORK............................................................ 5 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 COATING MATERIALS...................................................................... 10 STANDARD TIGHTENING TORQUE............................................................. 12 STANDARD TIGHTENING TORQUE OF BOLTS AND NUTS....................................... 12 TIGHTENING TORQUE OF HOSE NUTS..................................................... 13 TIGHTENING TORQUE OF SPLIT FLANGE BOLTS............................................ 13 TIGHTENING TORQUE FOR FLARED NUTS.................................................. 13 ELECTRIC WIRE CODE..................................................................... 14 CLASSIFICATION BY THICKNESS........................................................ 14 CLASSIFICATION BY COLOR AND CODE................................................... 14 CONVERSION TABLES...................................................................... 15 METHOD OF USING THE CONVERSION TABLE............................................... 15 01 GENERAL................................................................................. 21 SPECIFICATION DIMENSION DRAWINGS....................................................... 22 PC270LL-7L......................................................................... 22 DIMENSIONS......................................................................... 22 WORKING RANGES..................................................................... 24 WEIGHT TABLE........................................................................... 27 FUEL, COOLANT AND LUBRICANTS........................................................... 29 PC270LL-7L......................................................................... 29 10 STRUCTURE AND FUNCTION.................................................................. 31 ENGINE RELATED PARTS................................................................... 33 RADIATOR . OIL COOLER . AFTERCOOLER.................................................... 34 POWER TRAIN............................................................................ 35 FINAL DRIVE............................................................................ 37 SWING CIRCLE........................................................................... 41 TRACK FRAME . RECOIL SPRING............................................................ 43 IDLER.................................................................................. 45 TRACK ROLLER........................................................................... 47 TRACK SHOE............................................................................. 48 TRIPLE GROUSER SHOE.................................................................... 50 HYDRAULIC EQUIPMENT.................................................................... 51 HYDRAULIC TANK......................................................................... 53 HYDRAULIC PUMP......................................................................... 55 HPV95 + 95......................................................................... 55 LS VALVE........................................................................... 60 PC VALVE........................................................................... 60 LS(PC)-EPC VALVE................................................................... 73 CONTROL VALVE.......................................................................... 77 SELF PRESSURE REDUCING VALVE........................................................... 93 MAIN RELIEF VALVE.................................................................. 96 VARIABLE PRESSURE COMPENSATION VALVE............................................... 97 CLSS................................................................................... 99 SWING MOTOR............................................................................100 RELIEF VALVE PORTION...............................................................103 SWING LOCK.........................................................................104 REVERSE PREVENTION VALVE...............................................................105 CENTER SWIVEL JOINT....................................................................108 TRAVEL MOTOR.......................................................................110 PARKING BRAKE......................................................................115 TRAVEL JUNCTION VALVE..............................................................121 VALVE CONTROL..........................................................................123 CONNECTIONS........................................................................123 LEVER POSITIONS....................................................................124 WORK EQUIPMENT . SWING PPC VALVE.......................................................125 TRAVEL PPC VALVE.......................................................................130 SERVICE VALVE..........................................................................139 SOLENOID VALVE.........................................................................142 ATTACHMENT SOLENOID VALVE..............................................................143 PPC ACCUMULATOR........................................................................145 BOOM HYDRAULIC DRIFT PREVENTION VALVE..................................................146 LIFT CHECK VALVE.......................................................................149 HYDRAULIC CYLINDERS....................................................................150 BOOM CYLINDER......................................................................150 ARM CYLINDER.......................................................................150 BUCKET CYLINDER....................................................................150 WORK EQUIPMENT.........................................................................152 100 HOURS..........................................................................153 500 HOURS..........................................................................153 DIMENSION OF ARM...................................................................154 DIMENSION OF BUCKET................................................................156 AIR CONDITIONER........................................................................158 PIPING.............................................................................158 ENGINE CONTROL.........................................................................159 FUEL CONTROL DIAL..................................................................161 GOVERNOR MOTOR.....................................................................162 ENGINE THROTTLE AND PUMP CONTROLLER................................................164 INPUT AND OUTPUT SIGNALS...........................................................165 ELECTRONIC CONTROL SYSTEM..............................................................167 MACHINE CONTROL SYSTEM DIAGRAM.....................................................168 ENGINE AND PUMP CONTROL FUNCTION...................................................170 SWING CONTROL FUNCTION WITH SOFT SWING.............................................185 MULTI MONITOR SYSTEM...................................................................193 MONITOR PANEL......................................................................194 MONITOR CONTROL, DISPLAY PORTION MONITOR PORTION...................................196 MONITOR ITEMS AND DISPLAY..........................................................197 MAINTENANCE FUNCTION...............................................................206 SENSORS................................................................................211 ENGINE OIL LEVEL SENSOR............................................................212 ENGINE OIL PRESSURE SENSOR (FOR LOW PRESSURE)......................................212 COOLANT TEMPERATURE SENSOR.........................................................212 HYDRAULIC OIL TEMPERATURE SENSOR...................................................212 FUEL LEVEL SENSOR..................................................................213 AIR CLEANER CLOGGING SENSOR........................................................213 CAB RISER AND RELATED PARTS............................................................214 POWER CONTROL......................................................................215 CAB RISER HYDRAULIC SYSTEM.............................................................216 20 TESTING, ADJUSTING AND TROUBLESHOOTING..................................................231 STANDARD VALUE TABLES..................................................................219 ENGINE.............................................................................219 CHASSIS............................................................................220 TESTING AND ADJUSTING..................................................................231 SERVICE TOOLS......................................................................233 ENGINE.............................................................................234 COMPRESSION PRESSURE...........................................................234 BLOW-BY PRESSURE...............................................................234 OIL PRESSURE...................................................................234 RPM............................................................................234 SPEED SENSOR...................................................................234 EXHAUST GAS COLOR..............................................................234 FUEL INJECTION TIMING..........................................................234 VALVE CLEARANCE................................................................234 BELT TENSION - AIR COMPRESSOR......................................................235 EMERGENCY ESCAPE FROM ENGINE CONTROL FAILURE.......................................236 SWING CIRCLE BEARINGS..............................................................237 TRACK SHOE TENSION.................................................................238 SPROCKET...........................................................................238 OIL PRESSURE.......................................................................239 WORK EQUIPMENT, SWING AND TRAVEL...............................................239 CONTROL CIRCUIT................................................................243 PUMP PC CONTROL CIRCUIT........................................................244 PUMP LS CONTROL CIRCUIT........................................................247 SOLENOID VALVE OUTPUT PRESSURE.................................................252 TABLE FOR FUNCTIONING CONDITIONS...............................................253 PPC LOCK SOLENOID VALVE........................................................253 SWING AND PARKING BRAKE SOLENOID...............................................253 TRAVEL INTERCONNECTION SOLENOID VALVE..........................................253 ATTACHMENT SOLENOID VALVE OUTPUT...............................................256 PPC VALVE OUTPUT PRESSURE..........................................................257 ATTACHMENT PPC VALVE OUTPUT....................................................258 WORK EQUIPMENT AND SWING PPC VALVE.................................................259 WORK EQUIPMENT - HYDRAULIC DRIFT...................................................260 RELEASING PRESSURE IN HYDRAULIC CIRCUIT............................................262 OIL LEAKAGE........................................................................263 AIR BLEEDING OF VARIOUS PARTS......................................................266 SOFT SWING ADJUSTMENTS.............................................................268 DIODE INSPECTION PROCEDURES........................................................269 CAB DOOR STOP ADJUSTMENT...........................................................271 MULTI-MONITOR PANEL................................................................272 TABLE FOR SERVICE AND FAILURE CODE NUMBERS.....................................279 SERVICE MENU...................................................................281 WAY OF SWITCHING TO SERVICE MENU...............................................281 ELECTRICAL SYSTEM TROUBLESHOOTING..................................................297 PM TUNE UP SERVICE.................................................................298 TROUBLESHOOTING........................................................................303 TROUBLESHOOTING GENERAL............................................................303 POINTS TO REMEMBER WHEN TROUBLESHOOTING........................................305 SEQUENCE OF EVENTS IN TROUBLESHOOTING..........................................307 POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE...............................308 CHECKS BEFORE TROUBLESHOOTING..................................................316 CLASSIFICATION AND STEPS FOR TROUBLESHOOTING...................................317 CLASSIFICATION OF TROUBLESHOOTING..........................................317 STEPS FOR TROUBLESHOOTING..................................................317 FAILURE-LOOKING PHENOMENON AND TROUBLESHOOTING NO..........................318 CONNECTOR LOCATION CHART.......................................................321 CONNECTOR TABLE............................................................321 CONNECTOR LOCATION DIAGRAM.................................................328 ELECTRICAL CIRCUIT DIAGRAMS....................................................333 CONNECTION TABLE FOR CONNECTOR PIN NUMBERS.....................................334 CONNECTOR REPAIR PROCEDURES....................................................357 CONTACT TERMINAL REMOVAL (HD30 TYPE).......................................357 STRIPPING INSULATION.......................................................358 CRIMPING CONTACT TERMINAL (HD30 TYPE)......................................359 INSERTION OF CONTACT TERMINAL (HD30 TYPE)..................................360 CONTACT TERMINAL REMOVAL (DT TYPE).........................................361 STRIPPING INSULATION.......................................................362 CRIMPING CONTACT TERMINAL (DT TYPE)........................................363 INSERTION OF CONTACT TERMINAL (DT TYPE)....................................364 TROUBLESHOOTING ELECTRICAL SYSTEM (E-MODE).........................................365 POINTS TO REMEMBER WHEN TROUBLESHOOTING SYSTEM.................................369 POINTS TO REMEMBER IF ABNORMALITY RETURNS TO NORMAL BY ITSELF..............369 USER CODE MEMORY RETENTION FUNCTION........................................369 INFORMATION CONTAINED IN TESTING PROCEDURES....................................370 (E101).........................................................................372 ABNORMAL DATA IN ERROR HISTORY.............................................372 (E112).........................................................................374 SHORT IN WINDSHIELD WIPER MOTOR DRIVE FORWARD ROTATION.....................374 SHORT IN GUARD WIPER MOTOR DRIVE FORWARD ROTATION..........................375 (E113).........................................................................377 SHORT IN WINDSHIELD WIPER MOTOR DRIVE REVERSE ROTATION.....................377 SHORT IN GUARD WIPER MOTOR DRIVE REVERSE ROTATION..........................378 (E114).........................................................................380 SHORT OR OPEN IN WINDOW WASHER SYSTEM......................................380 SHORT OR OPEN IN GUARD WASHER SYSTEM.......................................381 (E115).........................................................................383 ABNORMAL WINDSHIELD WIPER MOTION...........................................383 ABNORMAL GUARD WIPER MOTION................................................384 (E116).........................................................................386 ABNORMALITY IN PARKING WIPER ARM...........................................386 ABNORMALITY IN PARKING WIPER ARM (GUARD)...................................387 (E201).........................................................................390 SHORT OR OPEN IN TRAVEL INTERLOCKING SOLENOID..............................390 (E203).........................................................................392 SHORT IN SWING AND PARKING SOLENOID GOVERNOR SYSTEM........................392 SHORT IN SWING AND PARKING SOLENOID CONTROLLER SYSTEM (WITH SOFT SWING)....394 (E204).........................................................................396 SHORT IN MERGE/DIVIDE SOLENOID.............................................396 (E205).........................................................................398 SHORT IN 2 STAGE RELIEF SOLENOID...........................................398 (E206).........................................................................400 SHORT IN TRAVEL SPEED SHIFT SOLENOID.......................................400 (E211).........................................................................402 OPEN IN TRAVEL INTERLOCKING SOLENOID.......................................402 (E213).........................................................................404 OPEN IN SWING PARKING BRAKE SOLENOID.......................................404 OPEN IN SWING PARKING BRAKE SOLENOID (WITH SOFT SWING).....................406 NO CODE........................................................................408 SHORT OR OPEN IN SOFT SWING SOLENOID SYSTEM................................408 (E214).........................................................................412 OPEN OF MERGE/DIVIDE SOLENOID..............................................412 (E215).........................................................................414 OPEN IN 2 STAGE RELIEF SOLENOID............................................414 (E216).........................................................................416 OPEN IN TRAVEL SPEED SOLENOID..............................................416 (E217).........................................................................418 ABNORMAL INPUT FOR MODEL CODE..............................................418 (E218).........................................................................420 OPEN IN S-NET SIGNAL.......................................................420 (E222).........................................................................422 SHORT IN LS-EPC SOLENOID...................................................422 (E223).........................................................................424 OPEN IN LS-EPC SOLENOID SYSTEM.............................................424 (E224).........................................................................426 ABNORMAL F-PUMP PRESSURE SENSOR SIGNAL.....................................426 (E225).........................................................................428 ABNORMAL R-PUMP PRESSURE SENSOR SIGNAL.....................................428 (E226).........................................................................430 ABNORMAL PRESSURE SENSOR POWER SUPPLY......................................430 (E227).........................................................................432 ABNORMAL ENGINE RPM SIGNAL IN GOVERNOR PUMP CONTROLLER.....................432 (E228).........................................................................434 SHORT IN ATTACHMENT RETURN SWITCHING RELAY.................................434 NO CODE........................................................................436 SHORT OR OPEN IN ATTACHMENT SOLENOID SYSTEM................................436 NO CODE........................................................................440 OPEN IN CAB TILT SYSTEM....................................................440 (E232).........................................................................442 SHORT IN PC-EPC SOLENOID...................................................442 (E233).........................................................................444 OPEN IN PC-EPC SOLENOID SYSTEM.............................................444 (E238).........................................................................446 OPEN IN ATTACHMENT RETURN SWITCH RELAY.....................................446 (E245).........................................................................448 SHORT IN ATTACHMENT OIL FLOW RATE EPC SYSTEM...............................448 (E246).........................................................................450 OPEN IN ATTACHMENT OIL FLOW RATE EPC SYSTEM................................450 (E256).........................................................................452 INCORRECT NON-VOLATILE MEMORY DATA.........................................452 (E306).........................................................................454 ABNORMAL GOVERNOR POTENTIOMETER SIGNALS....................................454 (E308).........................................................................456 ABNORMAL FUEL DIAL SIGNALS.................................................456 (E315).........................................................................458 SHORT IN BATTERY RELAY SYSTEM..............................................458 (E316).........................................................................460 STEP OUT IN GOVERNOR MOTOR.................................................460 (E317).........................................................................462 OPEN IN GOVERNOR MOTOR PHASE "A" AND "B"...................................462 (E318).........................................................................464 SHORT IN GOVERNOR MOTOR PHASE "A" AND "B"..................................464 (E501).........................................................................466 MODEL SELECTION FUNCTION NOT PROVIDED......................................466 (E502).........................................................................467 MODEL SELECTING SIGNAL FAULT...............................................467 (A000N1).......................................................................468 ENGINE SPEED OUT OF RANGE AT HIGH IDLE.....................................468 (A000N2).......................................................................469 ENGINE SPEED OUT OF RANGE AT LOW IDLE......................................469 (AA10NX).......................................................................470 AIR CLEANER CLOG INDICATOR FAILURE.........................................470 (AB00KE).......................................................................472 LOW CHARGING VOLTAGE INDICATED.............................................472 (B@BAZG).......................................................................474 ABNORMAL ENGINE OIL PRESSURE...............................................474 (B@BAZK).......................................................................476 ABNORMAL ENGINE OIL LEVEL..................................................476 (B@BCNS).......................................................................478 ENGINE COOLANT INDICATING OVERHEAT CONDITION...............................478 (B@BCZK).......................................................................480 ABNORMAL COOLANT LEVEL INDICATION..........................................480 (B@HANS).......................................................................482 HYDRAULIC OIL OVERHEAT INDICATION..........................................482 TROUBLESHOOTING MONITOR ELECTRICAL (E-MODE)........................................485 POINTS TO REMEMBER WHEN TROUBLESHOOTING SYSTEM.................................487 POINTS TO REMEMBER IF ABNORMALITY RETURNS TO NORMAL BY ITSELF..............487 USER CODE MEMORY RETENTION FUNCTION........................................487 INFORMATION CONTAINED IN TESTING PROCEDURES....................................488 (E-1)..........................................................................490 ENGINE WILL NOT CRANK......................................................490 (E-2)..........................................................................492 ENGINE STOPS WHILE IN OPERATION............................................492 (E-3)..........................................................................494 ENGINE SPEED IRREGULAR, OR HUNTING.........................................494 (E-4)..........................................................................496 ENGINE DOES NOT STOP.......................................................496 (E-5)..........................................................................498 AUTO DECELERATOR DOES NOT WORK.............................................498 (E-6)..........................................................................499 AUTO ENGINE WARM UP DEVICE DOES NOT WORK...................................499 (E-7)..........................................................................500 COLD START PREHEATER DOES NOT WORK.........................................500 (E-8)..........................................................................502 ALL WORK EQUIPMENT, SWING AND TRAVEL DO NOT OPERATE........................502 (E-9)..........................................................................504 ONE TOUCH POWER MAX SWITCH DOES NOT OPERATE................................504 (E-10).........................................................................506 NO DISPLAY ON MONITOR PANEL................................................506 (E-11).........................................................................508 PART OF DISPLAY ON MONITOR PANEL IS MISSING................................508 (E-12).........................................................................509 MONITOR PANEL DISPLAYS CONTENTS IRRELEVANT TO THE MODEL....................509 (E-13).........................................................................510 FUEL LEVEL INDICATOR LAMP LIGHTS UP WHEN FUEL TANK IS FULL.................510 (E-14).........................................................................512 ENGINE COOLANT TEMPERATURE GAUGE DOES NOT INDICATE CORRECTLY...............512 (E-15).........................................................................514 HYDRAULIC OIL TEMPERATURE GAUGE DOES NOT DISPLAY CORRECTLY.................514 (E-16).........................................................................516 FUEL GAUGE DOES NOT DISPLAY CORRECTLY......................................516 (E-17).........................................................................518 SWING LOCK MONITOR DOES NOT DISPLAY CORRECTLY..............................518 (E-18).........................................................................520 WHEN THE MONITOR SWITCH IS OPERATED, NO DISPLAY APPEARS....................520 (E-19).........................................................................522 WINDSHIELD WIPER DOES NOT WORK.............................................522 GUARD WIPER DOES NOT WORK..................................................523 (E-20).........................................................................526 ALARM BUZZER CANNOT BE CANCELLED...........................................526 (E-21).........................................................................528 BOOM RAISE NOT CORRECTLY DISPLAYED ON MONITOR..............................528 (E-22).........................................................................530 BOOM LOWER NOT CORRECTLY DISPLAYED ON MONITOR..............................530 (E-23).........................................................................532 ARM EXTEND NOT CORRECTLY DISPLAYED ON MONITOR..............................532 (E-24).........................................................................534 ARM RETRACT NOT CORRECTLY DISPLAYED ON MONITOR.............................534 (E-25).........................................................................536 BUCKET CURL NOT CORRECTLY DISPLAYED ON MONITOR.............................536 (E-26).........................................................................538 BUCKET DUMP NOT CORRECTLY DISPLAYED ON MONITOR.............................538 (E-27).........................................................................540 SWING NOT CORRECTLY DISPLAYED ON MONITOR...................................540 (E-28).........................................................................542 TRAVEL NOT CORRECTLY DISPLAYED ON MONITOR..................................542 (E-29).........................................................................544 TRAVEL DIFFERENTIAL PRESSURE NOT CORRECTLY DISPLAYED ON MONITOR............544 (E-30).........................................................................546 SERVICE NOT CORRECTLY DISPLAYED ON MONITOR.................................546 (E-31).........................................................................548 AIR CONDITIONER SYSTEM DOES NOT WORK.......................................548 (E-32).........................................................................552 TRAVEL ALARM DOES NOT SOUND................................................552 30 DISASSEMBLY AND ASSEMBLY................................................................555 METHOD OF USING MANUAL.................................................................559 PRECAUTIONS DURING OPERATION...........................................................560 PRECAUTIONS WHEN CARRYING OUT REMOVAL WORK.........................................560 PRECAUTIONS WHEN CARRYING OUT INSTALLATION WORK....................................561 PRECAUTIONS WHEN COMPLETING THE OPERATIONS.........................................562 OTHER PRECAUTIONS..................................................................562 SPECIAL TOOL LIST......................................................................563 SKETCHES OF SPECIAL TOOLS..............................................................567 ENGINE.................................................................................568 ALTERNATOR.........................................................................568 CYLINDER HEAD......................................................................568 ENGINE FRONT SEAL..................................................................568 ENGINE OIL COOLER..................................................................568 ENGINE REAR SEAL...................................................................568 FUEL INJECTION PUMP................................................................568 NOZZLE HOLDER......................................................................568 STARTING MOTOR.....................................................................568 THERMOSTAT.........................................................................568 TURBOCHARGER.......................................................................568 WATER PUMP.........................................................................568 RADIATOR...............................................................................569 REMOVAL............................................................................569 INSTALLATION.......................................................................570 HYDRAULIC OIL COOLER...................................................................571 REMOVAL............................................................................571 INSTALLATION.......................................................................572 ENGINE AND HYDRAULIC PUMPS.............................................................573 REMOVAL............................................................................573 INSTALLATION.......................................................................578 TRAVEL MOTOR AND FINAL DRIVE...........................................................580 REMOVAL............................................................................580 INSTALLATION.......................................................................580 FINAL DRIVE............................................................................581 DISASSEMBLY........................................................................581 ASSEMBLY...........................................................................586 REMOVAL............................................................................591 INSTALLATION.......................................................................592 DISASSEMBLY........................................................................593 ASSEMBLY...........................................................................596 TRACK AND CARRIER ROLLER...............................................................602 REMOVAL............................................................................602 INSTALLATION.......................................................................602 DISASSEMBLY........................................................................603 ASSEMBLY...........................................................................604 IDLER AND RECOIL SPRING................................................................607 REMOVAL............................................................................607 INSTALLATION.......................................................................607 IDLER..............................................................................608 DISASSEMBLY........................................................................608 ASSEMBLY...........................................................................609 RECOIL SPRING......................................................................612 DISASSEMBLY........................................................................612 ASSEMBLY...........................................................................613 TRACK ROLLER...........................................................................614 REMOVAL............................................................................614 INSTALLATION.......................................................................614 DISASSEMBLY........................................................................615 ASSEMBLY...........................................................................616 SPROCKET...............................................................................619 REMOVAL............................................................................619 INSTALLATION.......................................................................619 TRACK SHOE.............................................................................620 EXPANSION OF TRACK SHOE............................................................620 ASSEMBLY...........................................................................621 SWING CIRCLE...........................................................................622 REMOVAL............................................................................622 INSTALLATION.......................................................................622 REVOLVING FRAME........................................................................623 REMOVAL............................................................................623 INSTALLATION.......................................................................625 CENTER SWIVEL JOINT....................................................................626 REMOVAL............................................................................626 INSTALLATION.......................................................................627 DISASSEMBLY........................................................................628 ASSEMBLY...........................................................................629 HYDRAULIC TANK.........................................................................630 REMOVAL............................................................................630 INSTALLATION.......................................................................632 CONTROL VALVE..........................................................................633 REMOVAL............................................................................633 INSTALLATION.......................................................................636 DISASSEMBLY........................................................................637 ASSEMBLY...........................................................................638 HYDRAULIC PUMP.........................................................................639 REMOVAL............................................................................639 INSTALLATION.......................................................................641 HYDRAULIC PUMP INPUT SHAFT - OIL SEAL..................................................642 REMOVAL............................................................................642 INSTALLATION.......................................................................642 PPC VALVE..............................................................................643 WORK EQUIPMENT.....................................................................643 ASSEMBLY...........................................................................643 TRAVEL.............................................................................644 ASSEMBLY...........................................................................644 HYDRAULIC CYLINDER.....................................................................645 DISASSEMBLY........................................................................645 ASSEMBLY...........................................................................647 WORK EQUIPMENT.........................................................................651 REMOVAL............................................................................651 INSTALLATION.......................................................................653 AIR CONDITIONER........................................................................654 REMOVAL............................................................................654 INSTALLATION.......................................................................657 COUNTERWEIGHT..........................................................................658 REMOVAL............................................................................658 INSTALLATION.......................................................................658 CAB....................................................................................659 REMOVAL............................................................................659 INSTALLATION.......................................................................661 MONITOR................................................................................662 REMOVAL............................................................................662 INSTALLATION.......................................................................662 GOVERNOR PUMP CONTROLLER...............................................................663 REMOVAL............................................................................663 INSTALLATION.......................................................................663 90 OTHERS..................................................................................665 ELECTRICAL.............................................................................667 CIRCUIT DIAGRAM SHEET 1 (PART 1 OF 3)..............................................667 CIRCUIT DIAGRAM SHEET 1 (PART 2 OF 3)..............................................669 CIRCUIT DIAGRAM SHEET 1 (PART 3 OF 3)..............................................671 CIRCUIT DIAGRAM SHEET 2 (PART 1 OF 1)..............................................673 CIRCUIT DIAGRAM SHEET 3 (PART 1 OF 2)..............................................675 CIRCUIT DIAGRAM SHEET 3 (PART 2 OF 2)..............................................677 CIRCUIT DIAGRAM SHEET 4 (PART 1 OF 2)..............................................679 CIRCUIT DIAGRAM SHEET 4 (PART 2 OF 2)..............................................681 HYDRAULIC..............................................................................685 HYDRAULIC DIAGRAM (SHEET 1 OF 4) - FOLDOUT 11......................................685 HYDRAULIC DIAGRAM (SHEET 2 OF 4) - FOLDOUT 12......................................687 HYDRAULIC DIAGRAM (SHEET 3 OF 4) - FOLDOUT 13......................................689
KOMATSU PC270LL-7L GALEO LOGGING EXCAVATOR SHOP MANUAL A86001 AND UP – PDF DOWNLOAD:
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