komatsu pc20 6 pc30 6 pc40 6 hydraulic excavator shop manual sebm020r0604 1

komatsu pc20 6 pc30 6 pc40 6 hydraulic excavator shop manual sebm020r0604 2

komatsu pc20 6 pc30 6 pc40 6 hydraulic excavator shop manual sebm020r0604 3

komatsu pc20 6 pc30 6 pc40 6 hydraulic excavator shop manual sebm020r0604 4

komatsu pc20 6 pc30 6 pc40 6 hydraulic excavator shop manual sebm020r0604 5

Komatsu PC20-6, PC30-6, PC40-6 Hydraulic Excavator Shop Manual SEBM020R0604

$40.00

Type Of Manual: Shop Manual
Manual ID: SEBM020R0604
Format: PDF
Size: 16.5MB
Number of Pages: 345

Category: Komatsu Shop Manual PDF

Model List:
- PC20-6 Hydraulic Excavator
- PC30-6 Hydraulic Excavator
- PC40-6 Hydraulic Excavator

1. COVER
2. CONTENTS
3. STRUCTURE AND FUNCTION
3.1. POWER TRAIN
3.2. SWING CIRCLE
3.3. SWING MACHINERY
3.4. SPROCKET
3.5. TRACK FRAME AND RECOIL SPRING
3.6. IDLER
3.7. TRACK ROLLER
3.8. TRACK SHOE
3.9. HYDRAULIC PIPING
3.10. HYDRAULIC CIRCUIT SCHEMATICS
3.11. HYDRAULIC CIRCUIT DIAGRAM
3.12. HYDRAULIC TANK
3.13. HYDRAULIC TRIPLE GEAR PUMP
3.14. SPOOL CONTROL VALVE
3.15. SPOOL CONTROL VALVE
3.16. SPOOL CONTROL VALVE
3.17. CENTER SWIVEL JOINT
3.18. SWING MOTOR
3.19. TRAVEL MOTOR (WITH REDUCTION GEAR)
3.20. VALVE CONTROL
3.21. WORK EQUIPMENT
3.22. ELECTRICAL CIRCUIT DIAGRAM
4. TESTING AND ADJUSTING
4.1. TABLE OF JUDGEMENT STANDARD VALVE
4.2. TESTING AND ADJUSTING TOOL LIST
4.3. ADJUSTING VALVE CLEARANCE (PC20,306)
4.4. ADJUSTING VALVE CLEARANCE (PC406)
4.5. MEASURING COMPRESSION PRESSURE
4.6. TESTING AND ADJUSTING FUEL INJECTION TIMING (PC20,306)
4.7. TESTING AND ADJUSTING FUEL INJECTION TIMING (PC406)
4.8. BLEEDING AIR FROM HYDRAULIC CYLINDERS
4.9. MEASURING AND ADJUSTING HYDRAULIC PRESSURE
4.10. MEASURING HYDRAULIC PRESSURE OF ACCELERATION CIRCUIT (PC30,406)
4.11. MEASURING DISCHARGE AMOUNT OF PUMP
4.12. MEASURING OIL LEAKAGE FROM SWING, TRAVEL MOTORS
4.13. TESTING FOR LEAKAGE OF OIL FROM CENTER SWIVEL JOINT (PC206)
4.14. TESTING FOR LEAKAGE OF OIL FROM CENTER SWIVEL JOINT (PC306)
4.15. TESTING FOR LEAKAGE OF OIL FROM CENTER SWIVEL JOINT (PC406)
4.16. MEASURING LEAKAGE FROM HYDRAULIC CYLINDERS
4.17. TROUBLESHOOTING
4.17.1. PREPARATION OF TROUBLESHOOTING
4.17.2. HOW TO USE DIAGNOSTIC TABLE
4.17.3. PREVENTING RECURRENCE OF THE SAME TROUBLE
4.17.3.1. WORK EQUIPMENT, SWING, AND TRAVEL DO NOT MOVE, OR SPEED IS EXTREMELY SLOW
4.17.3.2. ARM IN (OUT) LACKS POWER (INCLUDING LACK OF SPEED)
4.17.3.3. BUCKET CURL (DUMP), BOOM RAISE (PUSHING UP CHASSIS), AND BOOM SWING LACK POWER (INCLUDING LACK OF SPEED)
4.17.3.4. ARM IN (OUT) OPERATION IS IMPOSSIBLE
4.17.3.5. BUCKET CURL (DUMP), BOOM RAISE (LOWER), BOOM SWING OPERATION IS IMPOSSIBLE
4.17.3.6. EXCESSIVE HYDRAULIC DRIFT OF WORK EQUIPMENT (BOOM, ARM, BUCKET, BLADE, BOOM SWING)
4.17.3.7. BLADE LACKS POWER (INCLUDING LACK OF SPEED)
4.17.3.8. BLADE OPERATION IS IMPOSSIBLE
4.17.3.9. LEFT (RIGHT) BOOM SWING LACKS POWER (INCLUDING LACK OF SPEED)
4.17.3.10. SWING OPERATION IS IMPOSSIBLE TO LEFT (OR RIGHT)
4.17.3.11. EXCESSIVE OVERRUN OF SWING ON SLOPES (HYDRAULIC DRIFT OF SWING)
4.17.3.12. EXCESSIVE OVERRUN WHEN SWING IS STOPPED
4.17.3.13. MACHINE NATURALLY DEVIATES TO ONE SIDE WHEN TRAVELING
4.17.3.14. MACHINE DOES NOT TRAVEL FORWARD (IN REVERSE)
4.17.3.15. TRAVEL SPEED DOES NOT CHANGE (PC30.406)
5. DISASSEMBLY AND ASSEMBLY
5.1. METHOD OF READING MANUAL
5.2. TABLE OF SPECIAL TOOLS
5.3. FUEL INJECTION PUMP
5.3.1. REMOVAL (PC20.306)
5.3.2. INSTALLATION (PC20.306)
5.3.3. REMOVAL (PC406)
5.3.4. INSTALLATION (PC406)
5.4. HYDRAULIC OIL COOLER
5.4.1. REMOVAL (PC20,306)
5.4.2. INSTALLATION (PC20,306)
5.4.3. REMOVAL (PC406)
5.4.4. INSTALLATION (PC406)
5.5. SWING CIRCLE
5.5.1. REMOVAL
5.5.2. INSTALLATION
5.6. SWING MACHINERY
5.6.1. REMOVAL
5.6.2. INSTALLATION
5.6.3. DISASSEMBLY (PC20.306)
5.6.4. ASSEMBLY (PC20.306)
5.6.5. DISASSEMBLY (PC406)
5.6.6. ASSEMBLY (PC406)
5.7. REVOLVING FRAME
5.8. IDLER, RECOIL SPRING
5.9. SPOOL CONTROL VALVE
5.9.1. REMOVAL
5.9.2. INSTALLATION
5.10. SPOOL CONTROL VALVE
5.10.1. REMOVAL
5.10.2. INSTALLATION
5.11. SPOOL CONTROL VALVE
5.11.1. REMOVAL
5.11.2. INSTALLATION
5.12. SPOOL CONTROL VALVE
5.12.1. DISASSEMBLY
5.12.2. ASSEMBLY
5.13. SPOOL CONTROL VALVE
5.14. CENTER SWIVEL JOINT
5.14.1. REMOVAL
5.14.2. INSTALLATION
5.14.3. DISASSEMBLY (PC20,306)
5.14.4. ASSEMBLY (PC20,306)
5.14.5. DISASSEMBLY (PC406)
5.14.6. ASSEMBLY (PC406)
5.15. TRAVEL MOTOR
5.15.1. REMOVAL
5.15.2. INSTALLATION
5.15.3. DISASSEMBLY (PC206)
5.15.4. ASSEMBLY (PC206)
5.15.5. DISASSEMBLY (PC30,406)
5.15.6. ASSEMBLY (PC30,406)
5.15.7. DISASSEMBLY (PC206)
5.15.8. ASSEMBLY (PC206)
5.15.9. DISASSEMBLY (PC306)
5.15.10. ASSEMBLY (PC306)
5.15.11. DISASSEMBLY (PC406)
5.15.12. ASSEMBLY (PC406)
5.16. BUCKET CYLINDER
5.17. BLADE CYLINDER
5.18. BOOM SWING CYLINDER
5.19. HYDRAULIC CYLINDER
5.19.1. DISASSEMBLY
5.19.2. ASSEMBLY
5.20. REPLACING HYDRAULIC CYLINDER PISTON RING
6. MAINTENANCE STANDARD
6.1. SWING CIRCLE
6.2. SWING MACHINERY
6.3. SPROCKET
6.4. TRACK FRAME AND RECOIL SPRING
6.5. IDLER
6.6. TRACK ROLLER
6.7. TRACK SHOE
6.8. TRIPLE GEAR PUMP
6.9. CENTER SWIVEL JOINT
6.10. SWING MOTOR
6.11. TRAVEL MOTOR BRAKE VALVE
6.12. SPOOL CONTROL VALVE
6.13. SPOOL CONTROL VALVE
6.14. SPOOL CONTROL VALVE
6.15. HYDRAULIC CYLINDER
6.16. WORK EQUIPMENT

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