Komatsu PC20MR-2 Hydraulic Excavator Shop Manual SEBM037001

Komatsu PC20MR-2 Hydraulic Excavator Shop Manual SEBM037001 - Image 2

Komatsu PC20MR-2 Hydraulic Excavator Shop Manual SEBM037001 - Image 3

Komatsu PC20MR-2 Hydraulic Excavator Shop Manual SEBM037001 - Image 4

Komatsu PC20MR-2 Hydraulic Excavator Shop Manual SEBM037001 - Image 5

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Komatsu PC20MR-2 Hydraulic Excavator Shop Manual SEBM037001

$40.00

Type Of Manual: Shop Manual
Manual ID: SEBM037001
Format: PDF
Size: 54.1MB
Number of Pages: 408

Category: Komatsu Shop Manual PDF

Model List:
- PC20MR-2 Hydraulic Excavator

0.1. HOISTING INSTRUCTIONS
0.2. METHOD OF DISASSEMBLING, CONNECTING PUSHPULL TYPE COUPLER
0.3. COATING MATERIALS
0.4. STANDARD TIGHTENING TORQUE
0.5. ELECTRIC WIRE CODE
0.6. CONVERSION TABLE
0.7. UNITS
1. GENERAL
1.1. SPECIFICATION DIMENSION DRAWING
1.2. WORKING RANGE DRAWING
1.3. SPECIFICATIONS
1.4. WEIGHT TABLE
1.5. LUBRICANTS, FUEL AND COOLANT SPECIFICATIONS
2. STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
2.1. HYDRAULIC COMPONENTS LAYOUT DRAWING
2.2. HYDRAULIC TANK
2.3. CENTER SWIVEL JOINT
2.4. TRAVEL MOTOR
2.5. HYDRAULIC CYLINDER
2.6. SOLENOID VALVE
2.7. MULTICONTROL VALVE (IF EQUIPPED)
2.8. HYDRAULIC PUMP
2.9. CONTROL VALVE
2.10. CLSS
2.11. OPERATION FOR EACH FUNCTION AND VALVE
2.12. SWING MOTOR
2.13. PPC VALVE
2.14. WORK EQUIPMENT
2.15. DIMENSIONS OF EACH PART OF WORK EQUIPMENT
2.16. FLOOR
2.17. ENGINE CONTROL
2.18. ELECTRIC CONTROL SYSTEM
2.19. COMPONENT PART OF SYSTEM
2.20. MONITOR SYSTEM
2.21. MONITOR PANEL
2.22. SENSORS
3. TESTING AND ADJUSTING
3.1. STANDARD VALUE TABLE FOR ENGINE RELATED PARTS
3.2. STANDARD VALUE TABLE FOR CHASSIS RELATED PARTS
3.3. TESTING AND ADJUSTING
3.3.1. LIST OF TESTING, ADJUSTING, AND TROUBLESHOOTING TOOLS
3.3.2. MEASURING ENGINE SPEED
3.3.3. MEASUREMENT OF EXHAUST GAS COLOR
3.3.4. ADJUSTING VALVE CLEARANCE
3.3.5. MEASURING COMPRESSION PRESSURE
3.3.6. MEASURING ENGINE OIL PRESSURE
3.3.7. TESTING AND ADJUSTING FUEL INJECTION TIMING
3.3.8. BLEEDING AIR FROM FUEL CIRCUIT
3.3.9. TESTING AND ADJUSTING FAN BELT TENSION
3.3.10. ADJUSTING FUEL CONTROL LEVER LINKAGE
3.3.11. MEASUREMENT OF CLEARANCE IN SWING CIRCLE BEARINGS
3.3.12. TESTING AND ADJUSTING TRACK SHOE TENSION
3.3.13. TESTING AND ADJUSTING OIL PRESSURES IN WORK EQUIPMENT, TRAVEL, SWING, AND BLADE CIRCUITS
3.3.14. MEASURING CONTROL CIRCUIT BASIC PRESSURE
3.3.15. TESTING AND ADJUSTING PUMP LS DIFFERENTIAL PRESSURE
3.3.16. MEASURING SOLENOID VALVE OUTPUT PRESSURE
3.3.17. MEASURING PPC VALVE OUTPUT PRESSURE
3.3.18. ADJUSTING PLAY OF WORK EQUIPMENT AND SWING PPC VALVES
3.3.19. MEASURING SWING HOLDING BRAKE RELEASE PRESSURE
3.3.20. MEASURING OF OIL LEAKAGE FROM CYLINDER
3.3.21. RELEASING RESIDUAL PRESSURE FROM HYDRAULIC CIRCUIT
3.3.22. BLEEDING AIR FROM CYLINDER
3.3.23. PRESSURIZING HYDRAULIC TANK
3.3.24. HOW TO OPEN AND CLOSE (TILT) FLOOR
3.3.25. INSPECTION PROCEDURES FOR DIODE
3.4. TROUBLESHOOTING
3.4.1. POINTS TO REMEMBER WHEN TROUBLESHOOTING
3.4.2. SEQUENCE OF EVENTS IN TROUBLESHOOTING
3.4.3. POINTS TO REMEMBER WHEN CARRYING OUT MAINTENANCE
3.4.4. CHECKS BEFORE TROUBLESHOOTING
3.4.5. CLASSIFICATION AND PROCEDURES OF TROUBLESHOOTING
3.4.6. CONNECTORS LIST AND STEREOGRAM
3.4.7. CONNECTION TABLE FOR CONNECTOR PIN NUMBERS
3.4.8. TADAPTERBOXES AND TADAPTER TABLE
3.4.9. TROUBLESHOOTING OF ELECTRICAL SYSTEM (EXCEPT MONITOR PANEL EMODE)
3.4.9.1. BEFORE STARTING EMODE TROUBLESHOOTING
3.4.9.2. INFORMATION CONTAINED IN TROUBLESHOOTING TABLE
3.4.9.3. E1 ENGINE DOES NOT START
3.4.9.4. E2 ENGINE DOES NOT STOP
3.4.9.5. E3 WHEN SAFETY LOCK LEVER IS IN FREE POSITION, WHOLE WORK EQUIPMENT, TRAVEL, SWING, AND BLADE SYSTEMS DO NOT WORK
3.4.9.6. E4 WHEN SAFETY LOCK LEVER IS IN LOCK POSITION, WHOLE WORK EQUIPMENT, TRAVEL, SWING AND BLADE SYSTEMS WORK
3.4.9.7. E5 WHEN MACHINE STARTS TRAVELING, TRAVEL ALARM DOES NOT SOUND
3.4.9.8. E6 WHEN MACHINE STOPS TRAVELING, TRAVEL ALARM DOES NOT STOP SOUNDING
3.4.9.9. E7 WINDSHIELD WIPER DOES NOT OPERATE CAB SPECIFICATION
3.4.9.10. E8 WINDSHIELD WASHER DOES NOT OPERATE CAB SPECIFICATION
3.4.9.11. E9 HEATER DOES NOT OPERATE
3.4.10. TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEMS (H MODE)
3.4.10.1. INFORMATION CONTAINED IN TROUBLESHOOTING TABLE
3.4.10.2. H1 SPEED OR POWER OF WHOLE WORK EQUIPMENT, TRAVEL, SWING, AND BLADE IS LOW
3.4.10.3. H2 ENGINE SPEED LOWERS EXTREMELY OR ENGINE STALLS
3.4.10.4. H3 WHOLE WORK EQUIPMENT, TRAVEL SYSTEM, SWING SYSTEM, AND BLADE DO NOT WORK
3.4.10.5. H4 ABNORMAL SOUND COMES OUT FROM AROUND HYDRAULIC PUMP
3.4.10.6. H5 FINE CONTROL PERFORMANCE OR RESPONSE IS LOW
3.4.10.7. H6 SPEED OR POWER OF BOOM IS LOW
3.4.10.8. H7 SPEED OR POWER OF ARM IS LOW
3.4.10.9. H8 SPEED OR POWER OF BUCKET IS LOW
3.4.10.10. H9 SPEED OR POWER OF BOOM SWING IS LOW
3.4.10.11. H10 WORK EQUIPMENT DOES NOT MOVE SINGLY
3.4.10.12. H11 WORK EQUIPMENT HYDRAULIC DRIFT IS LARGE
3.4.10.13. H12 TIME LAG OF WORK EQUIPMENT IS LARGE
3.4.10.14. H13 IN COMPOUND OPERATION OF WORK EQUIPMENT, SPEED OF PART LOADED MORE IS LOW
3.4.10.15. H14 MACHINE DEVIATES DURING TRAVEL
3.4.10.16. H15 TRAVEL SPEED OR TRAVEL POWER IS LOW
3.4.10.17. H16 MACHINE IS NOT STEERED WELL OR STEERING POWER IS LOW
3.4.10.18. H17 TRAVEL SPEED DOES NOT CHANGE
3.4.10.19. H18 TRAVEL MOTOR DOES NOT WORK (ONE SIDE ONLY)
3.4.10.20. H19 SPEED OR POWER OF SWING IS LOW
3.4.10.21. H20 MACHINE DOES NOT SWING
3.4.10.22. H21 SWING ACCELERATION PERFORMANCE IS LOW
3.4.10.23. H22 MACHINE OVERRUNS WHEN IT STOPS SWINGING
3.4.10.24. H23 LARGE SHOCK IS MADE WHEN MACHINE STOPS SWINGING
3.4.10.25. H24 WHEN UPPER STRUCTURE STOPS SWINGING, IT MAKES LARGE SOUND
3.4.10.26. H25 HYDRAULIC DRIFT OF SWING IS LARGE
3.4.10.27. H26 SPEED OR POWER OF BLADE IS LOW
3.4.10.28. H27 BLADE DOES NOT MOVE
3.4.10.29. H28 HYDRAULIC DRIFT OF BLADE IS LARGE
3.4.11. TROUBLESHOOTING OF MONITOR PANEL SYSTEM (M MODE)
3.4.11.1. BEFORE STARTING MMODE TROUBLESHOOTING
3.4.11.2. INFORMATION CONTAINED IN TROUBLESHOOTING TABLE
3.4.11.3. M1 WHEN STARTING SWITCH IS TURNED ON, NO MONITOR/GAUGE OPERATES
3.4.11.4. M2 WHEN STARTING SWITCH IS TURNED ON, SOME MONITORS/GAUGES DO NO OPERATE
3.4.11.5. M3 CAUTION BUZZER DOES NOT SOUND OR DOES NOT STOP SOUNDING
3.4.11.6. M4 WHILE ENGINE IS RUNNING, ENGINE OIL PRESSURE MONITOR FLASHES
3.4.11.7. M5 WHILE ENGINE IS RUNNING, CHARGE LEVEL MONITOR FLASHES
3.4.11.8. M6 PREHEATING SYSTEM DOES NOT OPERATE
3.4.11.9. M7 COOLANT TEMPERATURE GAUGE DOES NOT INDICATE NORMALLY
3.4.11.10. M8 FUEL LEVEL GAUGE DOES NOT INDICATE NORMALLY
3.4.11.11. M9 SERVICE METER DOES NOT OPERATE WHILE ENGINE IS RUNNING
3.4.11.12. M10 TRAVEL SPEED SHIFTING SYSTEM DOES NOT OPERATE NORMALLY
3.4.11.13. M11 MONITOR PANEL NIGHT LAMP AND WORKING LAMP DO NOT LIGHT UP
3.4.12. TROUBLESHOOTING OF ENGINE (S MODE)
3.4.12.1. TROUBLESHOOTING OF ENGINE (SMODE)
4. DISASSEMBLY AND ASSEMBLY
4.1. HOW TO READ THIS MANUAL
4.2. PRECAUTIONS WHEN PERFORMING OPERATION
4.3. SPECIAL TOOL LIST
4.4. REMOVAL AND INSTALLATION OF FUEL INJECTION PUMP ASSEMBLY
4.5. REMOVAL AND INSTALLATION OF RADIATOR AND HYDRAULIC OIL COOLER ASSEMBLY
4.6. REMOVAL AND INSTALLATION OF ENGINE AND HYDRAULIC PUMP ASSEMBLY
4.7. REMOVAL AND INSTALLATION TRACK SHOE ASSEMBLY
4.8. DISASSEMBLY AND ASSEMBLY OF IDLER ASSEMBLY
4.9. DISASSEMBLY AND ASSEMBLYOF RECOIL SPRING ASSEMBLY
4.10. DISASSEMBLY AND ASSEMBLY OF TRACK ROLLER ASSEMBLY
4.11. REMOVAL AND INSTALLATION OF CENTER SWIVEL JOINT ASSEMBLY
4.12. DISASSEMBLY AND ASSEMBLY OF CENTER SWIVEL JOINT ASSEMBLY
4.13. REMOVAL AND INSTALLATION OF FLOOR FRAME ASSEMBLY
4.14. REMOVAL AND INSTALLATION OF SWING MOTOR AND SWING MACHINERY ASSEMBLY
4.15. REMOVAL AND INSTALLATION OF WORK EQUIPMENT ASSEMBLY
4.16. REMOVAL AND INSTALLATION OF REVOLVING FRAME ASSEMBLY
4.17. REMOVAL AND INSTALLATION OF SWING CIRCLE ASSEMBLY
4.18. DISASSEMBLY AND ASSEMBLY OF CONTROL VALVE ASSEMBLY
4.19. DISASSEMBLY AND ASSEMBLY OF HDYRAULIC CYLINDER ASSEMBLY
4.20. REMOVAL AND INSTALLATION OF FRONT WINDOW ASSEMBLY
4.21. REMOVAL AND INSTALLATION OF OPERATORS CAB GLASS (STUCK GLASS)
5. OTHERS
5.1. HYDRAULIC CIRCUIT DIAGRAM
5.2. ELECTRICAL CIRCUIT DIAGRAM (1/2)
5.3. ELECTRICAL CIRCUIT DIAGRAM (2/2)

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