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KOMATSU PC270LC-7L HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL (A86001 & UP) – PDF DOWNLOAD
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- KOMATSU PC270LC-7L HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL
- Serial Number:A86001 & UP
- Publication Number:CEBM005905
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Description
KOMATSU PC270LC-7L HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL (A86001 & UP)
KOMATSU PC270LC-7L HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL (A86001 & UP) – PDF DOWNLOAD:
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DESCRIPTION:
KOMATSU PC270LC-7L HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL (A86001 & UP)
- 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, FUNCTION AND MAINTENANCE STANDARD
This section explains the structure and function of each component. It serves not only to give an understanding of the structure, but also serves as reference material for troubleshooting. In addition, this section gives the judgement standards when inspecting disassembled parts. - STANDARD VALE TABLE
This section explains the standard values for new machine and judgement criteria for testing, adjusting and troubleshooting. This standard value table is used to check the standard values in testing and adjusting and to judge parts in troubleshooting. - TESTING AND ADJUSTING
This section explains checks to be made before and after performing repairs, as well as adjustments to be made at completion of the checks and repairs. - TROUBLESHOOTING
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. - DIAGRAMS AND DRAWINGS
This section has the foldout drawings for the machine
TABLE OF CONTENTS:
KOMATSU PC270LC-7L HYDRAULIC EXCAVATOR SERVICE REPAIR MANUAL (A86001 & UP)
CONTENTS................................................................................... 2 SAFETY..................................................................................... 15 Safety Notice.......................................................................... 15 IMPORTANT SAFETY NOTICE............................................................ 15 General Precautions................................................................ 15 Preparations For Work.............................................................. 15 Precautions During Work............................................................ 15 GENERAL.................................................................................... 18 HOW TO READ THE SHOP MANUAL................................................................ 19 Volumes................................................................................ 19 Distribution And Updating.............................................................. 19 Filing Method.......................................................................... 19 Revised Edition Mark................................................................... 19 Revisions.............................................................................. 19 Symbols................................................................................ 19 HOISTING INSTRUCTIONS...................................................................... 20 Hoisting............................................................................... 20 Wire Ropes............................................................................. 20 PUSH-PULL TYPE COUPLER..................................................................... 21 COATING MATERIALS.......................................................................... 23 STANDARD TIGHTENING TORQUE................................................................. 25 Standard Tightening Torque Of Bolts And Nuts........................................... 25 Tightening Torque Of Split Flange Bolts................................................ 26 Tightening Torque For Flared Nuts...................................................... 26 Table Of Tightening Torques For O-ring Boss Piping Joints.............................. 26 Table Of Tightening Torques For O-ring Boss Plugs...................................... 27 Tightening Torque For 102 And 114 Engine Series........................................ 27 Tightening Torque Table For Hoses (Taper Seal Type And Face Seal Type)................. 28 ELECTRIC WIRE CODE......................................................................... 29 Classification By Thickness............................................................ 29 Classification By Color And Code....................................................... 29 CONVERSION TABLES.......................................................................... 30 Method Of Using The Conversion Table................................................... 30 SPECIFICATION DIMENSION DRAWINGS........................................................... 38 Dimensions............................................................................. 38 Working Ranges......................................................................... 39 SPECIFICATIONS............................................................................. 40 WEIGHT TABLE............................................................................... 42 FUEL, COOLANT AND LUBRICANTS............................................................... 44 Recommended Brands, Recommended Quality For Products Other Than Komatsu Genuine Oil.... 45 ENGINE RELATED PARTS....................................................................... 49 RADIATOR . OIL COOLER . AFTERCOOLER........................................................ 50 POWER TRAIN................................................................................ 51 FINAL DRIVE................................................................................ 52 SWING MACHINERY............................................................................ 54 SWING CIRCLE............................................................................... 57 TRACK FRAME . RECOIL SPRING................................................................ 58 IDLER...................................................................................... 60 CARRIER ROLLER............................................................................. 62 TRACK ROLLER............................................................................... 0 TRACK SHOE................................................................................. 64 TRIPLE GROUSER SHOE........................................................................ 67 HYDRAULIC EQUIPMENT LAYOUT DRAWING......................................................... 68 HYDRAULIC TANK............................................................................. 70 HYDRAULIC PUMP............................................................................. 71 HPV95+95............................................................................... 71 LS valve............................................................................... 76 PC Valve............................................................................... 76 LS(PC)-EPC Valve....................................................................... 89 CONTROL VALVE.............................................................................. 92 SELF PRESSURE REDUCING VALVE...............................................................110 Main Relief Valve......................................................................113 VARIABLE PRESSURE COMPENSATION VALVE.......................................................114 CLSS.......................................................................................116 SWING MOTOR................................................................................118 Relief Valve Portion...................................................................123 REVERSE PREVENTION VALVE...................................................................124 CENTER SWIVEL JOINT........................................................................127 TRAVEL MOTOR...............................................................................129 Motor Operation........................................................................132 Parking Brake Operation................................................................134 Brake Valve Operation..................................................................135 TRAVEL JUNCTION VALVE......................................................................141 TRAVEL PPC SHUTTLE VALVE...................................................................143 VALVE CONTROL..............................................................................146 WORK EQUIPMENT . SWING PPC VALVE...........................................................147 TRAVEL PPC VALVE...........................................................................152 SERVICE PPC VALVE..........................................................................162 SOLENOID VALVE.............................................................................166 PPC ACCUMULATOR............................................................................169 RETURN OIL FILTER..........................................................................170 BOOM HYDRAULIC DRIFT PREVENTION VALVE......................................................171 LIFT CHECK VALVE...........................................................................175 ATTACHMENT CIRCUIT SELECTOR VALVE..........................................................176 HYDRAULIC CYLINDERS........................................................................178 Boom Cylinder..........................................................................178 Arm Cylinder...........................................................................178 Bucket Cylinder........................................................................178 WORK EQUIPMENT.............................................................................180 100 Hours..............................................................................181 500 Hours..............................................................................181 Dimension Of Arm.......................................................................182 Dimension Of Bucket....................................................................184 AIR CONDITIONER............................................................................186 Piping.................................................................................186 ENGINE CONTROL.............................................................................187 Fuel Control Dial......................................................................189 Governor Motor.....................................................................190 Engine Throttle And Pump Controller....................................................192 Input And Output Signals...........................................................193 ELECTRONIC CONTROL SYSTEM..................................................................195 Total System Diagram...................................................................196 MULTI MONITOR SYSTEM.......................................................................219 Monitor Panel..........................................................................220 Monitor Control, Display Portion Monitor Portion.......................................222 Maintenance Function...................................................................232 7-SEGMENT MONITOR SYSTEM...................................................................238 Monitor panel..........................................................................239 SENSORS....................................................................................245 Engine Oil Level Sensor................................................................245 Engine Oil Pressure Sensor (For Low Pressure)..........................................246 Coolant Temperature Sensor.............................................................246 Hydraulic Oil Temperature Sensor.......................................................246 Fuel Level Sensor......................................................................247 Air Cleaner Clogging Sensor............................................................247 STANDARD VALUE TABLES......................................................................251 Engine.................................................................................251 Chassis................................................................................252 SERVICE TOOLS..............................................................................265 ENGINE.....................................................................................267 Engine Speed...........................................................................267 Exhaust Gas Color......................................................................269 Valve Clearance........................................................................271 Compression Pressure...................................................................273 Blow-by Pressure.......................................................................274 Fuel Injection Timing..................................................................275 Engine Oil Pressure....................................................................277 Engine Speed Sensor....................................................................278 Defective Cylinder.....................................................................279 BELT TENSION - AIR COMPRESSOR..............................................................280 ENGINE CONTROL SYSTEM FAILURE..............................................................281 SWING CIRCLE BEARINGS......................................................................282 TRACK SHOE TENSION.........................................................................283 SPROCKET...................................................................................283 OIL PRESSURE...............................................................................284 Work Equipment, Swing And Travel.......................................................284 Control Circuit........................................................................288 Pump PC Control Circuit................................................................289 Pump LS Control Circuit................................................................292 Solenoid Valve Output Pressure.........................................................297 PPC Valve Output Pressure..............................................................300 WORK EQUIPMENT AND SWING PPC VALVE.........................................................301 WORK EQUIPMENT - HYDRAULIC DRIFT...........................................................302 RELEASING PRESSURE IN HYDRAULIC CIRCUIT....................................................304 OIL LEAKAGE................................................................................305 AIR BLEEDING OF VARIOUS PARTS..............................................................308 DIODE INSPECTION PROCEDURES................................................................310 MULTI-MONITOR PANEL........................................................................312 Monitor Panel Functions - Conventional And Special.....................................313 Conventional Function: Operator's Menu.................................................313 Special Function: Service Menu.........................................................313 Operator's Menu And Display (Outline)..................................................314 Table For Service And Failure Code Numbers.............................................319 Service Menu...........................................................................321 7-SEGMENTS MONITOR PANEL - SPECIAL FUNCTIONS...............................................336 Ordinary functions and special functions of monitor panel..............................337 Display of operator menu...............................................................338 Operation and display of service menu..................................................339 ELECTRICAL SYSTEM TROUBLESHOOTING..........................................................352 PM TUNE UP SERVICE.........................................................................354 POINTS TO REMEMBER WHEN TROUBLESHOOTING....................................................363 SEQUENCE OF EVENTS IN TROUBLESHOOTING......................................................365 POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE...........................................366 CHECKS BEFORE TROUBLESHOOTING..............................................................374 CLASSIFICATION AND STEPS FOR TROUBLESHOOTING...............................................375 Classification Of Troubleshooting......................................................375 Steps For Troubleshooting..............................................................375 Failure-looking Phenomenon And Troubleshooting No......................................376 ELECTRICAL CIRCUIT DIAGRAM SYSTEM..........................................................379 Connector Table........................................................................379 S/N A86001-A86216..................................................................379 S/N A86217-UP......................................................................384 Connector Location Diagram.............................................................390 S/N A86001-A86216..................................................................390 S/N A86217-UP......................................................................396 ELECTRICAL CIRCUIT DIAGRAMS................................................................401 CONNECTION TABLE FOR CONNECTOR PIN NUMBERS.................................................402 T-BRANCH BOX AND T-BRANCH TABLE............................................................424 BEFORE TROUBLESHOOTING FOR DISPLAYED CODE..................................................428 POINTS TO REMEMBER WHEN TROUBLESHOOTING SYSTEM.............................................435 Points To Remember If Abnormality Returns To Normal By Itself..........................435 User Code Memory Retention Function....................................................435 Information In Troubleshooting Table...................................................436 E101 - ABNORMAL DATA IN ERROR HISTORY......................................................438 E112 - SHORT IN WINDSHIELD WIPER MOTOR DRIVE FORWARD ROTATION..............................440 E113 - SHORT IN WINDSHIELD WIPER MOTOR DRIVE REVERSE ROTATION..............................442 E114 - SHORT OR OPEN IN WINDOW WASHER SYSTEM...............................................444 S/N A86001-A86216......................................................................444 S/N A86217-UP..........................................................................446 E115 - ABNORMAL WINDSHIELD WIPER MOTION....................................................448 E116 - ABNORMALITY IN PARKING WIPER ARM....................................................450 E201 - SHORT OR OPEN IN TRAVEL INTERLOCKING SOLENOID.......................................452 S/N A86001-A86216......................................................................452 S/N A86217-UP..........................................................................454 E203 - SHORT IN SWING holding brake SOLENOID...............................................456 S/N A86001-A86216......................................................................456 S/N A86217-UP..........................................................................458 E204 - SHORT IN MERGE/DIVIDE SOLENOID......................................................460 S/N A86001-A86216......................................................................460 S/N A86217-UP..........................................................................462 E205 - SHORT IN 2 STAGE RELIEF SOLENOID....................................................464 S/N A86001-A86216......................................................................464 S/N A86217-UP..........................................................................466 E206 - SHORT IN TRAVEL SPEED SHIFT SOLENOID................................................468 S/N A86001-A86216......................................................................468 S/N A86217-UP..........................................................................470 E211 - OPEN IN TRAVEL INTERLOCKING SOLENOID................................................472 S/N A86001-A86216......................................................................472 S/N A86217-UP..........................................................................474 E213 - OPEN IN SWING holding BRAKE SOLENOID................................................476 S/N A86001-A86216......................................................................476 S/N A86217-UP..........................................................................478 E214 - OPEN OF MERGE/DIVIDE SOLENOID.......................................................480 S/N A86001-A86216......................................................................480 S/N A86217-UP..........................................................................482 E215 - OPEN IN 2 STAGE RELIEF SOLENOID.....................................................484 S/N A86001-A86216......................................................................484 S/N A86217-UP..........................................................................486 E216 - OPEN IN TRAVEL SPEED SOLENOID.......................................................488 S/N A86001-A86216......................................................................488 S/N A86217-UP..........................................................................490 E217 - ABNORMAL INPUT FOR MODEL CODE.......................................................492 E218 - OPEN IN S-NET SIGNAL................................................................494 E222 - SHORT IN LS-EPC SOLENOID............................................................496 E223 - OPEN IN LS-EPC SOLENOID SYSTEM......................................................498 E224 - ABNORMAL F-PUMP PRESSURE SENSOR SIGNAL..............................................500 E225 - ABNORMAL R-PUMP PRESSURE SENSOR SIGNAL..............................................502 E226 - ABNORMAL PRESSURE SENSOR POWER SUPPLY...............................................504 E227 - ABNORMAL ENGINE RPM SIGNAL IN GOVERNOR PUMP CONTROLLER..............................506 E228 - SHORT IN ATTACHMENT RETURN SWITCHING RELAY..........................................508 E232 - SHORT IN PC-EPC SOLENOID............................................................510 E233 - OPEN IN PC-EPC SOLENOID SYSTEM......................................................512 E238 - OPEN IN ATTACHMENT RETURN SWITCH RELAY..............................................514 E245 - SHORT IN ATTACHMENT OIL FLOW RATE EPC SYSTEM........................................516 E246 - OPEN IN ATTACHMENT OIL FLOW RATE EPC SYSTEM.........................................518 E256 - INCORRECT NONVOLATILE MEMORY DATA...................................................520 E306 - ABNORMAL GOVERNOR POTENTIOMETER SIGNALS.............................................522 E308 - ABNORMAL FUEL DIAL SIGNALS..........................................................524 E315 - SHORT IN BATTERY RELAY SYSTEM.......................................................526 E316 - STEP OUT IN GOVERNOR MOTOR..........................................................528 E317 - OPEN IN GOVERNOR MOTOR PHASE "A" AND "B"............................................530 E318 - SHORT IN GOVERNOR MOTOR PHASE "A" AND "B"...........................................532 E501 - MODEL SELECTION FUNCTION NOT PROVIDED...............................................534 E502 - MODEL SELECTING SIGNAL FAULT........................................................535 A000N1 - ENGINE SPEED OUT OF RANGE AT HIGH IDLE............................................536 A000N2 ENGINE SPEED OUT OF RANGE AT LOW IDLE...............................................537 AA10NX - AIR CLEANER CLOGGING..............................................................538 AB00KE - LOW CHARGING VOLTAGE..............................................................540 S/N A86001-A86216......................................................................541 S/N A86217-UP..........................................................................542 B@BAZG - ABNORMALLY LOWERED ENGINE OIL PRESSURE............................................544 B@BAZK - ABNORMALLY LOWERED ENGINE OIL LEVEL...............................................546 B@BCNS - ENGINE COOLING WATER OVERHEATING..................................................548 B@BCZK ABNORMALLY LOWERED RADIATOR WATER LEVEL.............................................550 B@HANS - HYDRAULIC OIL OVERHEATING.........................................................552 ELECTRICAL SYSTEM (E-MODE).................................................................554 Information Contained In Troubleshooting Table.........................................554 Before Carrying Out Troubleshooting Of E Mode..........................................556 E-1 - ENGINE DOES NOT START (ENGINE DOES NOT ROTATE).......................................557 Serial No. A86001 - A86216.............................................................560 Serial No. A86217 - UP.................................................................561 E-2 - ENGINE STOPS WHILE IN OPERATION......................................................562 E-3 - ENGINE SPEED IS IRREGULAR, OR THERE IS HUNTING.......................................563 Serial No. A86001 - A86216.............................................................564 Serial No. A86217 - UP.................................................................565 E-4 - ENGINE DOES NOT STOP.................................................................566 Serial No. A86001 - A86216.............................................................567 Serial No. A86001 - UP.................................................................568 E-5 - AUTO-DECELERATOR DOES NOT WORK.......................................................569 E-6 - AUTO ENGINE WARM-UP DEVICE DOES NOT WORK.............................................570 E-7 - PREHEATER DOES NOT WORK..............................................................572 E-8 - ALL WORK EQUIPMENT, SWING AND TRAVEL DO NOT MOVE.....................................574 E-9 - ONE-TOUCH POWER MAX SWITCH DOES NOT WORK.............................................576 E-10 - NO DISPLAY IN MONITOR PANEL AT ALL..................................................578 E-11 - PART OF DISPLAY ON MONITOR PANEL IS MISSING.........................................580 E-12 - MONITOR PANEL DISPLAYS CONTENTS IRRELEVANT TO THE MODEL.............................580 E-13 - FUEL LEVEL MONITOR RED LAMP LIGHTS UP WHILE ENGINE IS RUNNING.......................581 E-14 - ENGINE COOLING WATER TEMPERATURE GAUGE DOES NOT INDICATE CORRECTLY..................582 E-15 - HYDRAULIC OIL TEMPERATURE GAUGE DOES NOT DISPLAY CORRECTLY..........................583 E-16 - FUEL GAUGE DOES NOT DISPLAY CORRECTLY...............................................584 E-17 - SWING LOCK MONITOR DOES NOT DISPLAY CORRECTLY.......................................586 E-18 - WHEN THE MONITOR SWITCH IS OPERATED, NO DISPLAY APPEARS.............................588 E-19 - WINDSHIELD WIPER DOES NOT WORK......................................................590 E-20 - ALARMING BUZZER CANNOT BE CANCELLED.................................................592 E-21 - "BOOM RAISE" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION.........................594 E-22 - "BOOM LOWER" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION.........................595 E-23 - "ARM DIGGING" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION........................596 E-24 - "ARM DUMPING" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION........................597 E-25 - "BUCKET DIGGING" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION.....................598 E-26 - "BUCKET DUMPING" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION.....................599 E-27 - "SWING" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION..............................600 E-28 - "TRAVEL" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION.............................602 E-29 - "TRAVEL DIFFERENTIAL PRESSURE" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION.......604 E-30 - "SERVICE" IS NOT CORRECTLY DISPLAYED IN MONITOR FUNCTION............................606 E-31 - AIR CONDITIONER DOES NOT WORK.......................................................608 Serial No. A86001 - A86216.............................................................608 Serial No. A86217 and UP...............................................................610 E-31-E11...........................................................................611 E-31-E12...........................................................................611 E-31-E15...........................................................................612 E-31-E16...........................................................................612 E-31-E18...........................................................................613 E-31-E43...........................................................................613 E-31-E44...........................................................................614 E-31-E45...........................................................................615 E-31 Troubleshooting by failure phenomenon.........................................617 E-32 TRAVEL ALARM DOES NOT SOUND...........................................................621 HYDRAULIC AND MECHANICAL SYSTEMS (H-MODE)..................................................622 System Chart...........................................................................622 Information Contained In Troubleshooting Table.........................................624 H-1 - ALL WORK EQUIPMENT LACK POWER, OR TRAVEL AND SWING SPEEDS ARE SLOW...................625 H-2 - ENGINE SPEED SHARPLY DROPS OR ENGINE STALLS..........................................626 H-3 - NO WORK EQUIPMENT, TRAVEL OR SWING MOVE..............................................627 H-4 - ABNORMAL NOISE IS HEARD FROM AROUND HYDRAULIC PUMP...................................627 H-5 - AUTO-DECELERATOR DOES NOT WORK.......................................................628 H-6 - FINE CONTROL MODE DOES NOT FUNCTION..................................................628 H-7 - BOOM MOVES SLOWLY OR LACKS POWER.....................................................629 H-8 - ARM MOVES SLOWLY OR LACKS POWER......................................................630 H-9 - BUCKET MOVES SLOWLY OR LACKS POWER...................................................631 H-10 - WORK EQUIPMENT DOES NOT MOVE IN ITS SINGLE OPERATION................................631 H-11 - WORK EQUIPMENT HAS TO MUCH HYDRAULIC DRIFT..........................................632 H-12 - WORK EQUIPMENT HAS BIG TIME LAG.....................................................633 H-13 - OTHER WORK EQUIPMENT MOVES WHEN RELIEVING SINGLE CIRCUIT............................633 H-14 - ONE-TOUCH POWER MAX. SWITCH DOES NOT OPERATE........................................634 H-15 - IN COMPOUND OPERATION, WORK EQUIPMENT WITH LARGER LOAD MOVES SLOWLY.................634 H-16 - IN SWING + BOOM RAISE OPERATION, BOOM MOVES SLOWLY..................................634 H-17 IN SWING + TRAVEL, TRAVEL SPEED DROPS SHARPLY.........................................635 H-18 - MACHINE SWERVES IN TRAVEL...........................................................636 H-19 - MACHINE TRAVELS SLOWLY..............................................................637 H-20 - MACHINE CANNOT BE EASILY STEERED OR LACKS POWER.....................................638 H-21 - TRAVEL SPEED DOES NOT SHIFT, OR IT IS TOO SLOW OR FAST..............................639 H-22 - TRACK SHOE DOES NOT TURN (ON ONE SIDE ONLY).........................................640 H-23 - MACHINE DOES NOT SWING..............................................................641 H-24 - SWING ACCELERATION IS POOR, OR SWING SPEED IS SLOW..................................642 H-25 - EXCESSIVE OVERRUN WHEN STOPPING SWING...............................................643 H-26 - THERE IS A SHOCK WHEN STOPPING SWING................................................644 H-27 - THERE IS ABNORMAL NOISE CAUSED WHEN STOPPING SWING..................................644 H-28 - SWING NATURAL DRIFT IS TOO BIG......................................................645 METHOD OF USING MANUAL.....................................................................651 PRECAUTIONS DURING OPERATION...............................................................652 Precautions When Carrying Out Removal Work.............................................652 Precautions When Carrying Out Installation Work........................................653 Precautions When Completing The Operations.............................................654 Other Precautions......................................................................654 SPECIAL TOOL LIST..........................................................................655 SKETCHES OF SPECIAL TOOLS..................................................................659 STARTING MOTOR.............................................................................660 Removal................................................................................660 Installation...........................................................................660 FUEL INJECTION PUMP........................................................................661 Removal................................................................................661 Installation...........................................................................664 ENGINE FRONT SEAL..........................................................................666 Removal................................................................................666 Installation...........................................................................666 ENGINE REAR SEAL...........................................................................668 Removal................................................................................668 Installation...........................................................................669 CYLINDER HEAD..............................................................................670 Removal................................................................................670 Installation...........................................................................674 CONNECTOR REPAIR PROCEDURES................................................................677 Contact Terminal Removal (HD30 Type)...................................................677 Striping Insulation....................................................................678 Crimping Contact Terminal (HD30 Type)..................................................679 Insertion Of Contact Terminal (HD30 Type)..............................................680 Contact Terminal Removal (DT Type).....................................................681 Striping Insulation....................................................................682 Crimping Contact Terminal (DT Type)....................................................683 Insertion Of Contact Terminal (DT Type)................................................684 RADIATOR...................................................................................685 Removal................................................................................685 Installation...........................................................................686 HYDRAULIC OIL COOLER.......................................................................687 Removal................................................................................687 Installation...........................................................................688 ENGINE AND HYDRAULIC PUMPS.................................................................689 Removal................................................................................689 Installation...........................................................................694 FINAL DRIVE................................................................................696 Removal................................................................................696 Installation...........................................................................697 Disassembly............................................................................698 Assembly...............................................................................703 SWING MOTOR AND SWING MACHINERY............................................................710 Removal................................................................................710 Installation...........................................................................711 Disassembly............................................................................712 S/N A86001-A86216..................................................................712 S/N A86217-UP......................................................................716 Assembly...............................................................................720 S/N A86001-A86216..................................................................720 S/N A86217-UP......................................................................726 CARRIER ROLLER.............................................................................732 Assembly...............................................................................732 TRACK ROLLER...............................................................................734 Assembly...............................................................................734 IDLER......................................................................................735 Disassembly............................................................................735 Assembly...............................................................................736 RECOIL SPRING..............................................................................739 Disassembly............................................................................739 Assembly...............................................................................740 SPROCKET...................................................................................742 Removal................................................................................742 Installation...........................................................................742 TRACK SHOE.................................................................................743 Expansion Of Track Shoe................................................................743 Assembly...............................................................................744 SWING CIRCLE...............................................................................745 Removal................................................................................745 Installation...........................................................................745 REVOLVING FRAME............................................................................746 Removal................................................................................746 Installation...........................................................................748 CENTER SWIVEL JOINT........................................................................749 Removal................................................................................749 Installation...........................................................................750 Disassembly............................................................................751 Assembly...............................................................................752 HYDRAULIC TANK.............................................................................753 Removal................................................................................753 Installation...........................................................................755 CONTROL VALVE..............................................................................756 Removal................................................................................756 Installation...........................................................................759 Disassembly............................................................................760 Assembly...............................................................................762 HYDRAULIC PUMP.............................................................................763 Removal................................................................................763 Installation...........................................................................765 HYDRAULIC PUMP INPUT SHAFT - OIL SEAL......................................................766 Removal................................................................................766 Installation...........................................................................766 WORK EQUIPMENT PPC VALVE...................................................................767 Assembly...............................................................................767 TRAVEL PPC VALVE...........................................................................768 Assembly...............................................................................768 HYDRAULIC CYLINDER.........................................................................769 Disassembly............................................................................769 Assembly...............................................................................772 WORK EQUIPMENT.............................................................................776 Removal................................................................................776 Installation...........................................................................778 AIR CONDITIONER............................................................................779 Removal................................................................................779 S/N A86001-A86216..................................................................779 S/N A8617-UP.......................................................................783 Installation...........................................................................785 S/N A86001-A86216..................................................................785 S/N A86217-UP......................................................................786 COUNTERWEIGHT..............................................................................787 Removal................................................................................787 Installation...........................................................................787 CAB........................................................................................788 Removal................................................................................788 S/N A86001-A86216..................................................................788 S/N A86217-UP......................................................................791 Installation...........................................................................794 S/N A86001-A86216..................................................................794 S/N A86217-UP......................................................................794 OPERATOR’S CAB GLASS.......................................................................795 Removal................................................................................796 Installation...........................................................................797 FRONT WINDOW...............................................................................806 Removal................................................................................806 Installation...........................................................................809 MONITOR....................................................................................814 Removal................................................................................814 Installation...........................................................................814 GOVERNOR PUMP CONTROLLER...................................................................815 Removal................................................................................815 S/N A86001-A86216..................................................................815 S/N A86217-UP......................................................................816 Installation...........................................................................816 S/N A86001-A86216..................................................................816 S/N A86217-UP......................................................................816
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