Komatsu PC80-3, PC80LC-3 Hydraulic Excavator Shop Manual SEBM020X0302
Komatsu PC80-3, PC80LC-3 Hydraulic Excavator Shop Manual SEBM020X0302 - Image 2
Komatsu PC80-3, PC80LC-3 Hydraulic Excavator Shop Manual SEBM020X0302 - Image 3
Komatsu PC80-3, PC80LC-3 Hydraulic Excavator Shop Manual SEBM020X0302 - Image 4
Komatsu PC80-3, PC80LC-3 Hydraulic Excavator Shop Manual SEBM020X0302 - Image 5

Komatsu PC80-3, PC80LC-3 Hydraulic Excavator Shop Manual SEBM020X0302

$50.00

  • Type Of Manual: Shop Manual
  • Manual ID: SEBM020X0302
  • Format: PDF
  • Size: 22.7MB
  • Number of Pages: 386
Category:

Description

  • Model List:

    • PC80-3 Hydraulic Excavator
    • PC80LC-3 Hydraulic Excavator
  • 1. COVER
  • 2. CONTENTS
  • 3. ENGINE
  • 3.1. STRUCTURE AND FUNCTION
  • 3.1.1. ENGINE MOUNT
  • 3.1.2. RADIATOR
  • 3.1.4. FUEL TANK AND PIPING
  • 3.1.5. ENGINE CONTROL
  • 3.1.6. AUTODECELERATION SYSTEM (IF EQUIPPED)
  • 3.2. TESTING AND ADJUSTING
  • 3.2.1. STANDARD FOR TESTING AND ADJUSTING
  • 3.2.2. TESTING AND ADJUSTING TOOL LIST
  • 3.2.3. ADJUSTING VALVE CLEARANCE
  • 3.2.4. MEASURING EXHAUST GAS COLOR
  • 3.2.5. MEASURING COMPRESSION PRESSURE
  • 3.2.6. MEASURING BLOWBY PRESSURE
  • 3.2.7. ADJUSTING FUEL INJECTION TIMING
  • 3.2.8. TESTING AND ADJUSTING FAN BELT TENSION
  • 3.2.9. ADJUSTING FUEL CONTROL LEVER
  • 3.2.10. ADJUSTING AUTODECELERATION SYSTEM
  • 3.3. DISASSEMBLY AND ASSEMBLY
  • 3.3.1. AUTODECELERATION CYLINDER
  • 3.3.2. ENGINE OIL COOLER
  • 3.3.2.1. REMOVAL
  • 3.3.2.2. INSTALLATION
  • 3.3.3. FAN AND FAN PULLEY
  • 3.3.3.1. REMOVAL
  • 3.3.3.2. INSTALLATION
  • 3.3.4. HYDRAULIC OIL COOLER
  • 3.3.4.1. REMOVAL
  • 3.3.4.2. INSTALLATION
  • 3.3.5. RADIATOR AND HYDRAULIC OIL COOLER
  • 3.4. STRUCTURE AND FUNCTION
  • 3.4.1. POWER TRAIN
  • 3.4.2. TRAVEL SYSTEM
  • 3.4.3. TRAVEL CONTROL CIRCUIT SCHEMATICS
  • 3.4.4. TRAVEL CONTROL CIRCUIT
  • 3.4.5. TRAVEL MOTOR (WITH REDUCTION GEAR AND PARKING BRAKE)
  • 3.4.6. CENTER SWIVEL JOINT
  • 3.4.7. STRAIGHT TRAVEL SYSTEM
  • 3.4.8. TRAVEL CONTROL
  • 3.4.9. SWING SYSTEM
  • 3.4.10. SWING CONTROL CIRCUIT SCHEMATICS
  • 3.4.11. SWING CONTROL CIRCUIT
  • 3.4.12. SWING MOTOR AND BRAKE VALVE
  • 3.4.13. SWING MECHANICAL BRAKE (IF EQUIPPED)
  • 3.4.14. SWING PRIORITY CIRCUIT
  • 3.4.15. SWING MACHINERY
  • 3.4.16. SWING CIRCLE
  • 3.5. DISASSEMBLY AND ASSEMBLY
  • 3.5.1. CENTER SWIVEL JOINT
  • 3.5.2. SWING MACHINERY
  • 3.6. MAINTENANCE STANDARD
  • 3.6.1. SWING MACHINERY
  • 3.6.2. SWING CIRCLE
  • 3.6.3. SWING MOTOR
  • 3.6.4. SPROCKET
  • 4. UNDERCARRIAGE
  • 4.1. STRUCTURE AND FUNCTION
  • 4.2. DISASSEMBLY AND ASSEMBLY
  • 4.3. MAINTENANCE STANDARD
  • 4.3.1. TRACK FRAME AND RECOIL SPRING
  • 4.3.2. IDLER
  • 4.3.3. TRACK ROLLER
  • 4.3.4. CARRIER ROLLER
  • 4.3.5. TRACK SHOE
  • 5. HYDRAULIC SYSTEM
  • 5.1. STRUCTURE AND FUNCTION
  • 5.1.1. OUTLINE
  • 5.1.2. HYDRAULIC PIPING
  • 5.1.3. HYDRAULIC SCHEMATICS
  • 5.1.4. HYDRAULIC CIRCUIT
  • 5.1.5. HYDRAULIC TANK (WITH FUEL TANK)
  • 5.1.6. HYDRAULIC PUMP
  • 5.1.7. PC CONTROL SYSTEM
  • 5.1.8. MODE SELECTION TYPE PC CONTROL SYSTEM (IF EQUIPPED)
  • 5.1.9. OLSS SYSTEM (IF EQUIPPED)
  • 5.1.10. CONTROL VALVE
  • 5.1.11. HYDRAULIC CYLINDER
  • 5.1.12. WORK EQUIPPENT CONTROL
  • 5.1.13. WORK EQUIPPENT
  • 5.2. TESTING AND ADJUSTING
  • 5.2.1. TABLE OF JUDGEMENT STANDARD VALUE
  • 5.2.2. TROUBLESHOOTING TOOLS
  • 5.2.3. TESTING AND ADJUSTING MAIN RELIEF VALVE
  • 5.2.4. TESTING AND ADJUSTING CHARGING PUMP RELIEF VALVE
  • 5.2.5. TESTING CONTROL CIRCUIT PRESSURE
  • 5.2.6. MEASURING DELIVERY OF PISTON PUMP
  • 5.2.7. AIR BLEEDING
  • 5.2.8. CHECKING FOR OIL LEAKAGE FROM SWIVEL JOINT
  • 5.2.9. TROUBLESHOOTING
  • 5.2.9.1. ELECTRICAL CIRCUIT
  • 5.2.9.2. PISTON OF CONNECTORS FOR TROUBLESHOOTING
  • 5.2.9.3. CONNECTION TABLE FOR CONNECTOR PINS
  • 5.2.9.4. TROUBLESHOOTING PROCEDURE
  • 5.2.9.5. CHECKS BEFORE TROUBLESHOOTING
  • 5.2.9.6. JUDGEMENT TABLE
  • 5.2.9.7. TROUBLESHOOTING CHART
  • 5.2.9.7.1. E1 WORK EQUIPMENT, SWING, TRAVEL SPEEDS EXTREMELY SLOW, OR LACK OF POWER. NO CHANGE IN OUTPUT WHEN MODE SELECTOR SWITCH IS OPERATED.
  • 5.2.9.7.2. E2 MACHINE DEVIATES EXCESSIVELY (DURING COMPOUND OPERATIONS)
  • 5.2.9.7.3. E2 MACHINE DEVIATES EXCESSIVELY (DURING COMPOUND OPERATIONS). MACHINE DEVIATES EXCESSIVELY (WHEN STARTING).
  • 5.2.9.7.4. E3 HYDRAULIC DRIFT OF SWING IS EXCESSIVE, OR UPPER STRUCTURE DOES NOT SWING.
  • 5.2.9.7.5. E4 AUTODECELERATION DOES NOT WORK.
  • 5.2.9.7.6. H1 MACHINE DEVIATES EXCESSIVELY (DEVIATES MORE THAN STANDARD WHEN ONLY TRAVEL SYSTEM IS USED, TRAVEL LEVER IS PULLED FULLY).
  • 5.2.9.7.7. H1 MACHINE DEVIATES EXCESSIVELY (DEVIATES MORE THAN STANDARD WHEN ONLY TRAVEL SYSTEM IS USED, TRAVEL LEVER AT FULL TRAVEL).
  • 5.2.9.7.8. H2 MACHINE DEVIATES EXCESSIVELY DURING COMPOUND OPERATION.
  • 5.2.9.7.9. H3 MACHINE DEVIATES EXCESSIVELY WHEN STARTING.
  • 5.2.9.7.10. H4 CONTROL LEVERS ARE EXTREMELY HEAVY.
  • 5.2.9.7.11. H5 WORK EQUIPMENT, TRAVEL AND SWING START SUDDENLY DURING FINE CONTROL OPERATIONS.
  • 5.2.9.7.12. H6 SPEEDS FOR WORK EQUIPMENT, SWING, AND TRAVEL ARE ALL EXTREMELY SLOW, OR THERE IS NO POWER.
  • 5.2.9.7.13. H6 SPEEDS FOR WORK EQUIPMENT, SWING, AND TRAVEL ARE ALL EXTREMELY SLOW, OR THERE IS NO POWER (NO ABNORMALITY IN AUTODECELERATION).
  • 5.2.9.7.14. H7 SPEEDS FOR BOOM, ARM AND BUCKET ARE SLOW, OR THERE IS NO POWER (NO ABNORMALITY IN AUTODECELERATION)
  • 5.2.9.7.15. H8 ENGINE STALLS OR ENGINE SPEED DROPS DURING OPERATIONS.
  • 5.2.9.7.16. H9 NO CHANGE IN OUTPUT WHEN MODE SELECTOR SWITCH IS OPERATED.
  • 5.2.9.7.17. H10 AUTODECELERATION DOES NOT COME ON, OR DOES NOT GO OFF.
  • 5.2.9.7.18. H11 ABNORMAL NOISE COMES FROM AROUND PUMP.
  • 5.2.9.7.19. H12 SWING SPEED IS SLOW, OR OVERRUN WHEN STOPPING SWING IS EXCESSIVE.
  • 5.2.9.7.20. H13 UPPER STRUCTURE DOES NOT SWING.
  • 5.2.9.7.21. H14 EXCESSIVE HYDRAULIC DRIFT OF SWING
  • 5.2.9.7.22. H15 EXCESSIVE HYDRAULIC DRIFT OF WORK EQUIPMENT
  • 5.2.9.7.23. H16 EXCESSIVE TIME LAG FOR WORK EQUIPMENT
  • 5.2.9.8. FAILURE MODE AND COMPONENTS
  • 5.3. DISASSEMBLY AND ASSEMBLY
  • 5.3.0.1. REMOVAL (WITH OLSS)
  • 5.3.0.2. INSTALLATION (WITH OLSS)
  • 5.3.0.3. DISASSEMBLY
  • 5.3.0.4. ASSEMBLY
  • 5.3.1. TVC VALVE AND FRONT CONC VALVE
  • 5.3.1.1. REMOVAL
  • 5.3.1.2. INSTALLATION
  • 5.3.2. REAR CONC VALVE
  • 5.3.3. MAIN PUMP INPUT SHAFT OIL SEAL
  • 5.3.3.1. REMOVAL
  • 5.3.3.2. INSTALLATION
  • 5.3.4. SPOOL CONTROL VALVE
  • 5.3.4.1. REMOVAL
  • 5.3.4.2. INSTALLATION
  • 5.3.5. SPOOL CONTROL VALVE
  • 5.3.6. BUCKET CYLINDER
  • 5.3.6.1. REMOVAL
  • 5.3.6.2. INSTALLATION
  • 5.3.7. HYDRAULIC CYLINDER
  • 5.3.7.1. DISASSEMBLY
  • 5.3.7.2. ASSEMBLY
  • 5.4. MAINTENANCE STANDARD
  • 5.4.1. CHARGING PUMP (BAR16)
  • 5.4.2. SPOOL CONTROL VALVE
  • 5.4.3. SPOOL CONTROL VALVE
  • 5.4.4. HYDRAULIC CYLINDER
  • 5.4.5. WORK EQUIPMENT
  • 6. WORK EQUIPMENT
  • 6.1. DISASSEMBLY AND ASSEMBLY
  • 7. ELECTRIC AND ELECTRONIC SYSTEM
  • 7.1. STRUCTURE AND FUNCTION
  • 7.1.1. ELECTRICAL SYSTEM
  • 7.1.2. ELECTRICAL CIRCUIT DIAGRAM
  • 7.2. TESTING AND ADJUSTING
  • 7.2.1. ECECTRICAL CIRCUIT
  • 7.2.2. TROUBLESHOOTING CHART
  • 7.2.2.1. M1 BATTERY CHARGING PILOT LAMP DOES NOT GO OFF.
  • 7.2.2.2. M2 FUEL GAUGE DOES NOT DISPLAY OR DISPLAYS ABNORMALLY.
  • 7.2.2.3. M3 WATER TEMPERATURE GAUGE DOES NOT OPERATE OR DISPLAYS ABNORMALLY.
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