Komatsu PC88MR-6 Hydraulic Excavator Shop Manual WEBM007200

Description

• Model List:
  • PC88MR-6 Hydraulic Excavator

• 1. CONTENTS
• 2. REVISED PAGES
• 3. k SAFETY
• 4. FOREWORD
• 5. HOW TO READ THE SHOP MANUAL
• 6. HOISTING INSTRUCTIONS
• 7. STANDARD TIGHTENING TORQUE
• 8. COATING MATERIALS
• 9. ELECTRIC
• 10. WEIGHT TABLE
• 11. TABLE OF OIL AND COOLANT QUANTITIES
• 12. CONVERSION TABLE
• 13. STRUCTURE, FUNCTION ANDMAINTENANCE STANDARD
• 13.1. POWER TRAIN
• 13.2. SWING CIRCLE
• 13.3. SWING MACHINERY
• 13.4. TRACK FRAME AND IDLER CUSHION
• 13.5. WORK EQUIPMENT CYLINDER
• 13.6. SOLENOID VALVE GROUP
• 13.7. TRAVEL PPC VALVE
• 13.8. BLADE, BOOM SWING, 2PIECE BOOM PPC VALVES
• 13.9. EQUIPMENT
• 14. TESTING AND ADJUSTMENTS
• 14.1. NORMAL OR STANDARD TECHNICAL DATA
• 14.2. PUMP FEATURES
• 14.3. CHECK POSITIONS
• 14.4. SPECIAL TOOLS
• 14.5. MEASURING THE ENGINE SPEED
• 14.6. CHECKING THE EXHAUST SMOKE COLOUR
• 14.7. ADJUSTING VALVE CLEARANCE
• 14.8. CHECKING COMPRESSION PRESSURE
• 14.9. TESTING AND ADJUSTING FUEL INJECTION TIMING
• 14.10. CHECKING ENGINE OIL PRESSURE
• 14.11. ADJUSTING CHECKING FUEL CONTROL LEVER LINKAGE
• 14.12. ADJUSTING THE TACHOMETER SENSOR
• 14.13. CHECKING AND CALIBRATING PRESSURE IN THE SECONDARY VALVES
• 14.14. CHECKING AND ADJUSTING THE LS (Load Sensing) VALVE
• 14.15. ADJUSTING PC VALVE
• 14.16. CHECKING TVCEPC SOLENOID VALVE OUTPUT PRESSURE
• 14.17. CHECKING SERVOCONTROL CIRCUIT PRESSURE
• 14.18. CHECKING PPC VALVE DELIVERY PRESSURE
• 14.19. CHECKING SOLENOID VALVE OUTPUT PRESSURE
• 14.20. ADJUSTING BOOM SAFETY VALVE
• 14.21. ADJUSTING PPC VALVE CLEARANCE
• 14.22. MEASURING TRAVEL DEVIATION
• 14.23. ANALYSIS OF THE CAUSES OF HYDRAULIC DRIFTS
• 14.24. METHODS FOR TESTING FOR LEAKAGES INSIDE THE SWIVEL JOINT
• 14.25. ELIMINATING PRESSURES FROM CIRCUITS
• 14.26. MEASUREMENT OF CLEARANCE IN SWING CIRCLE BEARINGS
• 14.27. TESTING AND ADJUSTING TRACK SHOE TENSION
• 14.28. AIR BLEEDING FROM HYDRAULIC CIRCUITS
• 14.29. POTENTIOMETER REPLACEMENT PROCEDURE
• 14.30. TESTING THE AIRCONDITIONING UNIT
• 14.31. EMPTYING THE AIRCONDITIONING UNIT
• 15. REMOVAL AND INSTALLATION
• 15.1. HOW TO READ THE MANUAL
• 15.2. PRECAUTIONS TO BE TAKEN WHILE WORKING
• 15.3. COMPLETE HYDRAULIC PUMP
• 15.3.1. Removal
• 15.3.2. Installation
• 15.4. SERVOCONTROL PUMP
• 15.5. COMPLETE RADIATOR AND AIR CONDITIONING CONDENSER
• 15.5.1. Removal
• 15.5.2. Installation
• 15.6. SWING MOTOR AND REDUCTION GEAR
• 15.7. SWING REDUCTION GEAR
• 15.7.1. Disassembly and assembly
• 15.8. EQUIPMENT PPC VALVES
• 15.8.1. Assembly
• 15.9. TRAVEL PPC VALVE
• 15.9.1. Removal
• 15.9.2. Installation
• 15.9.3. Assembly
• 15.10. ADDITIONAL EQUIPMENT AND BOOM SWING PPC VALVE
• 15.10.1. Removal
• 15.10.2. Installation
• 15.11. BLADE PPC VALVE
• 15.11.1. Removal
• 15.11.2. Installation
• 15.12. ACCELERATOR ASSEMBLY
• 15.13. SAFETY MICROSWITCH
• 15.13.1. Removal
• 15.13.2. Installation
• 15.14. HYDRAULIC OIL TANK
• 15.15. EVAPORATOR UNIT
• 15.16. REVOLVING FRAME
• 15.16.1. Removal
• 15.16.2. Installation
• 15.17. EQUIPMENT (1piece boom version)
• 15.17.1. Removal
• 15.17.2. Installation
• 15.18. UPPER EQUIPMENT (2piece boom version)
• 15.18.1. Removal
• 15.18.2. Installation
• 15.19. BOOM CYLINDER (For 1piece boom)
• 15.19.1. Removal
• 15.19.2. Installation
• 15.20. BOOM CYLINDER (version with 2piece boom)
• 15.21. BUCKET CYLINDER
• 15.21.1. Removal
• 15.21.2. Installation
• 15.22. BOOM SWING CYLINDER
• 15.23. PIECE BOOM CYLINDER
• 15.24. COMPLETE TRAVEL ASSEMBLY
• 15.24.1. Removal
• 15.24.2. Installation
• 15.25. TRACK SHOE IDLER
• 15.25.1. Assembly
• 15.26. BUMPER SPRING
• 15.26.1. Disassembly
• 15.26.2. Assembly
• 15.27. LOWER IDLER ROLLERS
• 15.27.1. Disassembly
• 15.27.2. Assembly
• 16. OTHER
• 16.1. HYDRAULIC CIRCUIT DIAGRAM (STANDARD)
• 16.2. ELECTRICAL CIRCUIT DIAGRAM