Komatsu PC75UU-2 Hydraulic Excavator Shop Manual SEBM001302

Description

• Model List:
  • PC75UU-2 Hydraulic Excavator

• 1. COVER
• 2. CONTENTS
• 3. GENERAL
• 3.1. GENERAL ASSEMBLY DRAWING
• 3.2. SPECIFICATIONS
• 3.3. WEIGHT TABLE
• 3.4. LIST OF LUBRICANT AND WATER
• 4. STRUCTURE AND FUNCTION
• 4.1. HYDRAULIC PIPING DIAGRAM
• 4.2. HYDRULIC CIRCUIT DIAGRAM
• 4.3. ELECTRIC WIRING DIAGRAM
• 4.4. ELECTRIC CIRCUIT DIAGRAM
• 5. TESTING AND ADJUSTING
• 5.1. TABLE OF JUDGEMENT STANDARD VALUE
• 5.2. STANDARD VALUE TABLE FOR ELECTRICAL PARTS
• 5.3. TOOLS FOR TESTING ,ADJUSTING,AND TROUBLESHOOTING
• 5.4. MEASURING ENGINE SPEED
• 5.5. MEASURING ENGINE OIL PRESSURE
• 5.6. MEASURING COMPRESSION PRESSURE
• 5.7. MEASURING BLOWBY
• 5.8. ADJUSTING VALVE CLEARANCE
• 5.9. TESTING AND ADJUSTING FUEL INJECTION TIMING
• 5.10. TESTING AND ADJUSTING ALTERNATOR FAN BELT TENSION
• 5.11. ADJUSTING FUEL CONTROL LEVER
• 5.12. TESTING AND ADJUSTING TRACK SHOE TENSION
• 5.13. TESTING AND ADJUSTING HYDRAULIC PRESSURE IN WORK EQUIPMENT, SWING, TRAVEL CIRCUIT
• 5.14. TESTING CONTROL CIRCUIT PRESSURE
• 5.15. MEASURING OUTPUT PRESSURE OF PPC VALVE
• 5.16. ADJUSTING PPC VALVE
• 5.17. MEASURING OUTLET PORT PRESSURE OF SOLENOID VALVE,EPC VALVE
• 5.18. MEASURING OIL LEAKAGE INSIDE CYLINDER
• 5.19. MEASURING OIL LEAKAGE FROM SWING,TRAVEL MOTOR
• 5.20. BLEEDING AIR FROM HYDRAULIC CIRCUIT
• 5.21. RELEASING REMAINING FROM HYDRAULIC CIRCUIT
• 5.22. ADJUSTING BLADE CONTROL LEVER
• 5.23. ADJUSTING TRAVEL CONTROL LEVER
• 5.24. PROCEDURE FOR RESETTING ELECTRICAL SYSTEM INPUT/OUTPUT SIGNALS AND CHECKING OPERATION
• 5.25. PROCEDURE FOR REPLACING POTENTIOMETER
• 5.26. PROCDURE FOR CHECKING DIODE
• 5.27. TROUBLESHOOTING
• 5.27.1. POINTS TO REMEMBER WHEN TROUBLESHOOTING
• 5.27.2. SEQUENCE OF EVENTS IN TROUBLESHOOTING
• 5.27.3. PRECAUTIONS WHEN CARRYING OUT MAINTENANCE
• 5.27.4. CHECKS BEFORE TROUBLESHOOTING
• 5.27.5. ELECTRICAL CIRCUIT DIAGRAMS FOR EACH SYSTEM
• 5.27.6. CONNECTOR ARRANGEMENT DRAWING
• 5.27.7. CONNECTION TABLE FOR CONNECTOR PIN NUMBERS
• 5.27.8. HANDING CONNECTORS
• 5.27.9. EXPLANATIONS OF CONTROL MECHANISM OF ELECTRICAL SYSTEM
• 5.27.10. DISPLAY METHOD FOR MONITOR PANEL,CONTROLLER
• 5.27.11. ACTION TAKEN BY SELF DIAGNOSTIC FUNCTION AND PROBLEMS ON MACHINE
• 5.27.12. METHOD OF USING JUDGEMENT TABLE
• 5.27.13. METHOD OF USING TROUBLESHOOTING CHARTS
• 5.27.14. TROUBLESHOOTING OF CONTROLLER,ELECTRICAL SYSTEM (E MODE)
• 5.27.15. TROUBLESHOOTING OF HYDRAULIC,MECHANICAL SYSTEM (H MODE)
• 5.27.16. TROUBLESHOOTING OF MACHINE MONITOR SYSTEM (M MODE)
• 6. DISASSEMBLY AND ASSEMBLY
• 6.1. METHOD OF USING MANUAL
• 6.2. PRECAUTIONS WHEN CARRYING OUT OPERATION
• 6.3. SPECIAL TOOLS LIST
• 6.4. SCHEMATIC DRAWING OF SPECIAL TOOL
• 6.5. STARTING MOTOR
• 6.5.1. REMOVAL AND INSTALLATION
• 6.6. ALTERNATOR
• 6.6.1. REMOVAL AND INSTALLATION
• 6.7. FUEL INJECTION PUMP
• 6.7.1. REMOVAL AND INSTALLATION
• 6.8. WATER PUMP
• 6.8.1. REMOVAL
• 6.8.2. INSTALLATION
• 6.9. NOZZLE HOLDER
• 6.9.1. REMOVAL AND INSTALLTION
• 6.10. THERMOSTAT
• 6.10.1. REMOVAL AND INSTALLATION
• 6.11. ENGINE FRONT SEAL
• 6.11.1. REMOVAL AND INSTALLATION
• 6.12. ENGINE REAR SEAL
• 6.12.1. REMOVAL AND INSTALLATION
• 6.13. CYLINDER HEAD
• 6.13.1. REMOVAL
• 6.13.2. INSTALLATION
• 6.14. HYDRAULIC OIL COOLER
• 6.14.1. REMOVAL AND INSTALLATION
• 6.15. RADIATOR
• 6.15.1. REMOVAL AND INSTALLATION
• 6.16. ENGINE AND MAIN PUMP
• 6.16.1. REMOVAL
• 6.16.2. INSTALLATION
• 6.17. DAMPER
• 6.17.1. REMOVAL AND INSTALLATION
• 6.18. CENTER SWIVEL JOINT
• 6.18.1. REMOVAL AND INSTALLATION
• 6.18.2. DISASSEMBLY AND ASSEMBLY
• 6.19. TRAVEL MOTOR
• 6.19.1. REMOVAL AND INSTALLATION
• 6.20. SPROCKET
• 6.20.1. REMOVAL AND INSTALLATION
• 6.21. SWING MOTOR AND SWING MACHINERY
• 6.21.1. REMOVAL AND INSTALLATION
• 6.22. SWING MOTOR
• 6.22.1. DISASSEMBLY
• 6.22.2. ASSEMBLY
• 6.23. SWING MACHINERY
• 6.23.1. DISASSEMBLY
• 6.23.2. ASSEMBLY
• 6.24. REVOLVING FRAME
• 6.24.1. REMOVAL
• 6.24.2. INSTALLATION
• 6.25. SWING CIRCLE
• 6.25.1. REMOVAL AND INSTALLATION
• 6.26. IDLER AND RECOIL SPRING
• 6.26.1. REMOVAL AND INSTALLATION
• 6.26.2. REMOVAL AND INSTALLATION
• 6.26.3. DISASSEMBLY
• 6.26.4. ASSEMBLY
• 6.27. RUBBER SHOE
• 6.27.1. REMOVAL AND INSTALLATION
• 6.28. STEEL SHOE AND ROAD LINER
• 6.28.1. EXPANSION AND INSTALLATION
• 6.29. PPC PUMP
• 6.29.1. REMOVAL AND INSTALLATION
• 6.30. MAIN PUMP
• 6.30.1. REMOVAL AND INSTALLATION
• 6.30.2. DISASSEMBLY
• 6.30.3. ASSEMBLY
• 6.31. SPOOL CONTROL VALVE
• 6.31.1. REMOVAL
• 6.31.2. INSTALLATION
• 6.31.3. DISASSEMBLY
• 6.31.4. ASSEMBLY
• 6.32. SPOOL CONTROL VALVE
• 6.32.1. REMOVAL
• 6.32.2. INSTALLATION
• 6.33. MAIN RELIEF VALVE
• 6.33.1. REMOVAL AND INSTALLATION
• 6.33.2. DISASSEMBLY AND ASSEMBLY
• 6.34. PPC VALVE ASSEMBLY ON LEFT SIDE OF WORK EQUIPMENT
• 6.34.1. REMOVAL AND INSTALLATION
• 6.35. PPC VALVE ON RIGHT SIDE OF WORK EQUIPMENT
• 6.35.1. REMOVAL AND INSTALLATION
• 6.36. WORK EQUIPMENT PPC VALVE
• 6.36.1. DISASSEMBLY
• 6.36.2. ASSEMBLY
• 6.37. PPC VALVE FOR OFFSET OPERATION
• 6.37.1. REMOVAL AND INSTALLATION
• 6.38. ARM CYLINDER
• 6.38.1. REMOVAL
• 6.38.2. INSTALLATION
• 6.39. BUCKERT CYLINDER
• 6.40. OFFSET CYLINDER
• 6.41. HYDRAULIC CYLINDER
• 6.41.1. REMOVAL AND INSTALLATION
• 6.41.2. REMOVAL AND INSTALLATION
• 6.42. OPERATORS CAB
• 6.42.1. REMOVAL AND INSTALLATION
• 6.43. FLOOR FRAME
• 6.43.1. REMOVAL
• 6.43.2. INSTALLATION
• 6.44. FUEL TANK
• 6.44.1. REMOVAL AND INSTALLATION
• 6.45. CONTROLLER
• 6.45.1. REMOVAL AND INSTALLATION
• 6.46. MONITOR
• 6.46.1. REMOVAL AND INSTALLATION
• 6.47. COUNTERWEIGHT
• 6.47.1. REMOVAL AND INSTALLATION
• 7. MAINTENANCE STANDARD
• 7.1. SWING MACHINERY
• 7.2. SWING CIRCLE
• 7.3. TRACK FRAME,RECOIL SPRING
• 7.4. SPOOL CONTROL VALVE(FOR FRONT PUMP)
• 7.5. SPOOL CONTROL VALVE(FOR CENTER PUMP)
• 7.6. SPOOL CONTROL VALVE
• 7.7. SWING MOTOR
• 7.8. CENTER SWIVEL JOINT
• 7.9. PPC VALVE
• 7.10. HYDRAULIC CYLINDER
• 7.11. WORK EQUIPMENT