Komatsu PC650-3, PC650LC-3, PC650SE-3 Hydraulic Excavator Shop Manual SEBM02090307

Description

• Model List:
  • PC650-3 Hydraulic Excavator
  • PC650LC-3 Hydraulic Excavator
  • PC650SE-3 Hydraulic Excavator

• 1. COVER
• 2. CONTENTS
• 3. ENGINE
• 3.1. STRUCTURE AND FUNCTION
• 3.1.1. ENGINE RELATED PARTS
• 3.1.2. PTO (POWER TAKEOFF)
• 3.1.3. PTO LUBRICATION SYSTEM
• 3.1.4. RADIATOR AND OIL COOLER
• 3.1.5. FUEL TANK AND PIPING
• 3.1.6. ENGINE CONTROL SYSTEM
• 3.1.7. 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 COMPRESSION PRESSURE
• 3.2.5. ADJUSTING FUEL INJECTION TIMING
• 3.2.6. MEASURING EXHAUST GAS COLOR
• 3.2.7. MEASURING BLOWBY PRESSURE
• 3.2.8. TESTING AND ADJUSTING FAN BELT TENSION
• 3.2.9. TESTING AND ADJUSTING ALTERNATOR BELT TENSION
• 3.2.10. ADJUSTING FUEL CONTROL LEVER
• 3.2.11. ADJUSTING AUTODECELERATION SYSTEM
• 3.3. DISASSEMBLY AND ASSEMBLY
• 3.3.1. ENGINE OIL COOLER
• 3.3.2. FUEL INJECTION PUMP
• 3.3.3. HYDRAULIC OIL COOLER
• 3.3.4. RADIATOR
• 3.3.5. ENGINE, PTO AND HYDRAULIC PUMP
• 3.3.6. DECELERATOR CYLINDER (IF EQUIPPED)
• 3.4. MAINTENANCE STANDARD
• 4. POWER TRAIN
• 4.1. STRUCTURE AND FUNCTION
• 4.1.1. POWER TRAIN
• 4.1.2. TRAVEL AND BRAKE SYSTEM
• 4.1.3. SWING SYSTEM
• 4.2. DISASSEMBLY AND ASSEMBLY
• 4.2.1. CENTER SWIVEL JOINT
• 4.2.2. TRAVEL MOTOR (WITH FOUR TRAVEL MOTORS)
• 4.2.3. TRAVEL BRAKE VALVE (WITH FOUR TRAVEL MOTORS)
• 4.2.4. TRAVEL MOTOR (WITH TWO TRAVEL MOTORS)
• 4.2.5. FINAL DRIVE
• 4.2.6. CONC VALVE (FOR SWING PUMP)
• 4.2.7. SERVO VALVE (FOR SWING PUMP)
• 4.2.8. SWING CONTROL VALVE
• 4.2.9. MAIN RELIEF VALVE (FOR SWING CONTROL VALVE)
• 4.2.10. REVOLVING FRAME
• 4.2.11. SWING CIRCLE
• 4.2.12. SWING MACHINERY
• 4.3. MAINTENANCE STANDARD
• 4.3.1. TRAVEL MOTOR
• 4.3.2. TRAVEL SHUTTLE VALVE
• 4.3.3. STRAIGHTTRAVEL VALVE
• 4.3.4. TRAVEL BRAKE VALVE
• 4.3.5. FINAL DRIVE
• 4.3.6. SWING CONTROL VALVE
• 4.3.7. JET SENSOR
• 4.3.8. SWING MOTOR
• 4.3.9. SWING SHADOW VALVE (IF EQUIPPED)
• 4.3.10. CONNECTION VALVE (IF EQUIPPED)
• 4.3.11. SWING MACHINERY
• 4.3.12. SWING CIRCLE
• 5. UNDERCARRIAGE
• 5.1. STRUCTURE AND FUNCTION
• 5.2. DISASSEMBLY AND ASSEMBLY
• 5.2.1. IDLER ADJUSTMENT CYLINDER
• 5.3. MAINTENANCE STANDARD
• 5.4. STRUCTURE AND FUNCTION
• 5.4.1. AIR PIPING
• 5.4.2. AIR CIRCUIT DIAGRAM
• 6. HYDRAULIC SYSTEM
• 6.1. STRUCTURE AND FUNCTION
• 6.1.1. HYDRAULIC PIPING
• 6.1.2. HYDRAULIC CIRCUIT DIAGRAM
• 6.1.3. WORK EQUIPMENT CONTROL
• 6.1.4. ELECTRONIC AUTOMATIC WORK EQUIPMENT CONTROL SYSTEM (IF EQUIPPED)
• 6.1.5. HYDRAULIC TANK
• 6.1.6. MAIN PUMP
• 6.1.7. HYDRAULIC OIL FILTER
• 6.1.8. CHARGING AND PTO LUBRICATING PUMP
• 6.1.9. STAGE AND 3STAGE MODE SELECTOR OLSS (OPEN CENTER LOAD SENSING SYSTEM)
• 6.1.10. HYDRAULIC CONTROL VALVE
• 6.1.11. PPC VALVE
• 6.1.12. PPC SHUTTLE VALVE
• 6.1.13. ACCUMULATOR
• 6.1.14. PILOT RELIEF VALVE
• 6.1.15. SAFETY LOCK VALVE
• 6.1.16. HYDRAULIC CYLINDER
• 6.1.17. WORK EQUIPMENT
• 6.2. TESTING AND ADJUSTING
• 6.2.1. TABLE OF JUDGEMENT STANDARD VALUE
• 6.2.2. TABLE OF ELECTRICAL JUDGEMENT STANDARD VALUE
• 6.2.3. TESTING AND ADJUSTING TOOL LIST
• 6.2.4. TESTING TRAVEL AND OPERATING FORCE
• 6.2.5. TESTING AND ADJUSTING MAIN RELIEF VALVE
• 6.2.6. TESTING CONTROL CIRCUIT PRESSURE
• 6.2.7. MEASURING DISCHARGE OF MAIN PISTON PUMP
• 6.2.8. CHECKING AND ADJUSTING TRAVEL MOTOR PERFORMANCE
• 6.2.9. MEASURING OIL LEAKAGE FROM SWING AND TRAVEL MOTOR
• 6.2.10. TESTING OIL LEAKAGE FROM SWIVEL JOINT
• 6.2.11. BLEEDING AIR
• 6.2.12. CHARGING ACCUMULATOR WITH GAS
• 6.2.13. TESTING METHOD USING VISUAL AND FUNCTIONAL CHECK
• 6.2.14. ADJUSTMENT OF WORK EQUIPMENT POTENTIOMETER
• 6.2.15. ADJUSTMENT OF WORK EQUIPMENT CONTROL BOX
• 6.2.16. TROUBLESHOOTING
• 6.3. DISASSEMBLY AND ASSEMBLY
• 6.3.1. CHARGING AND PTO LUBRICATION PUMP
• 6.3.2. NO.1 PUMP
• 6.3.3. NO.2 PUMP
• 6.3.4. MAIN PUMP
• 6.3.5. SERVO VALVE (FOR NO.1 FRONT PUMP)
• 6.3.6. SERVO VALVE (FOR NO.1 REAR PUMP)
• 6.3.7. SERVO VALVE (FOR NO.2 FRONT PUMP)
• 6.3.8. SERVO VALVE (FOR NO.2 REAR PUMP)
• 6.3.9. CONC VALVE (FOR NO.1 FRONT PUMP)
• 6.3.10. CONC VALVE (FOR NO.1 REAR PUMP)
• 6.3.11. TVC VALVE
• 6.3.12. SPOOL CONTROL VALVE
• 6.3.13. SPOOL CONTROL VALVE
• 6.3.14. CONTROL VALVE
• 6.3.15. MAIN RELIEF VALVE (FOR L.H.5SPOOL,R.H.4SPOOL VALVE)
• 6.3.16. PILOT RELIEF VALVE
• 6.3.17. PPC VALVE (FOR TRAVEL)
• 6.3.18. PPC VALVE (FOR WORK EQUIPMENT AND SWING)
• 6.3.19. BOOM CYLINDER (BACK HOE)
• 6.3.20. ARM CYLINDER (BACK HOE)
• 6.3.21. BUCKET CYLINDER (BACK HOE)
• 6.3.22. BOOM CYLINDER (LOADING SHOVEL)
• 6.3.23. ARM CYLINDER (LOADING SHOVEL)
• 6.3.24. BUCKET CYLINDER (LOADING SHOVEL)
• 6.3.25. BOTTOM DUMP CYLINDER (LOADING SHOVEL)
• 6.3.26. HYDRAULIC CYLINDER
• 6.3.27. BUCKET (BACK HOE)
• 6.3.28. ARM (BACK HOE)
• 6.3.29. BOOM (BACK HOE)
• 6.3.30. BUCKET AND ARM (BACK HOE)
• 6.3.31. WORK EQUIPMENT (BACK HOE)
• 6.3.32. BUCKET (LOADING SHOVEL)
• 6.3.33. ARM (LOADING SHOVEL)
• 6.3.34. BOOM (LOADING SHOVEL)
• 6.3.35. WORK EQUIPMENT (LOADING SHOVEL)
• 6.3.36. POTENTIOMETER (LOADING SHOVEL)
• 6.3.37. COUNTERWEIGHT
• 6.4. MAINTENANCE STANDARD
• 6.4.1. CHARGING AND PTO LUBRICATION PUMP
• 6.4.2. PILOT RELIEF VALVE
• 6.4.3. SPOOL CONTROL VALVE
• 6.4.4. SPOOL CONTROL VALVE
• 6.4.5. PPC VALVE
• 6.4.6. PPC SHUTTLE VALVE
• 6.4.7. HYDRAULIC CYLINDER
• 6.4.8. WORK EQUIPMENT
• 7. ELECTRIC AND ELECTRONIC SYSTEM
• 7.1. STRUCTURE AND FUNCTION
• 7.1.1. ELECTRICAL WIRING DIAGRAM
• 7.1.2. ELECTRICAL CIRCUIT DIAGRAM
• 7.1.3. ELECTRONIC COMPONENTS OF 3STAGE MODE SELECTOR OLSS
• 7.1.4. ELECTRONIC COMPONENTS OF AUTOMATIC WORK EQUIPMENT CONTROL SYSTEM
• 7.1.5. EVMS
• 7.2. TESTING AND ADJUSTING
• 7.2.1. ELECTRICAL CIRCUIT DIAGRAM
• 7.2.2. POSITION OF CONNECTORS FOR TROUBLESHOOTING
• 7.2.3. M MODE TROUBLESHOOTING