Komatsu PC75R-2 Hydraulic Excavator Shop Manual WEBM004000

Description

• Model List:
  • PC75R-2 Hydraulic Excavator

• 1. MAIN MENU
• 2. COVER
• 3. CONTENTS
• 4. LIST OF REVISED PAGES
• 5. SAFETY
• 6. FOREWORD
• 7. HOW TO READ THE SHOP MANUAL
• 8. HOISTING INSTRUCTIONS
• 9. STANDARD TIGHTENING TORQUE
• 10. COATING MATERIALS
• 11. ELECTRIC WIRE CODE
• 12. WEIGHT TABLE
• 13. TABLE OF OIL COOLANT QUANTITIES
• 14. STRUCTURE AND FUNCTION
• 14.2. POWER TRAIN
• 14.3. TRACK FRAME
• 14.4. IDLER AND RECOIL SPRING
• 14.5. CARRIER ROLLER
• 14.6. TRACK ROLLER
• 14.7. TRACK SHOE
• 14.8. SWING CIRCLE
• 14.9. SWING MACHINERY
• 14.10. HYDRAULIC CIRCUIT DIAGRAM (STANDARD)
• 14.11. HYDRAULIC CIRCUIT DIAGRAM (2PIECE BOOM)
• 14.12. HYDRAULIC PUMP
• 14.13. SPOOL CONTROL VALVE (STANDARD)
• 14.14. SPOOL CONTROL VALVE (STANDARD2PIECE BOOM)
• 14.15. SWING MOTOR
• 14.16. CENTER SWIVEL JOINT
• 14.17. SERVOCONTROL FEED UNIT
• 14.18. ACCUMULATOR
• 14.19. PPC VALVE (WORK EQUIPMENT)
• 14.20. PPC VALVE (BLADE, BOOM SWING, 2PIECE BOOM)
• 14.21. TRAVEL PPC VALVE
• 14.22. BOOM AND ARM SAFETY VALVE
• 14.23. BLADE SAFETY VALVE
• 14.24. PIECE BOOM SAFETY VALVE
• 14.25. OVERLOAD SENSOR SWITCH
• 14.26. SOLENOID VALVE
• 14.27. ELECTRICAL DIAGRAM (1/3)
• 14.28. ELECTRICAL DIAGRAM (2/3)
• 14.29. ELECTRICAL DIAGRAM (3/3)
• 15. TESTING AND ADJUSTING
• 15.1. NORMAL OR STANDARD TECHNICAL DATA
• 15.2. SPECIAL TOOLS
• 15.3. MEASURING THE ENGINE SPEED
• 15.4. ADJUSTING VALVE CLEARANCE
• 15.5. MEASURING COMPRESSION PRESSURE
• 15.6. TESTING AND ADJUSTING FUEL INJECTION TIMING
• 15.7. TESTING AND ADJUSTING FAN BELT TENSION
• 15.8. ADJUSTING THE STROKE OF THE ACCELERATOR LEVER
• 15.9. ADJUSTING PPC VALVE CLEARANCE
• 15.10. ADJUSTING THE SAFETY MICROSWITCH
• 15.11. MEASURING THE SWING CIRCLE AXIAL CLEARANCE
• 15.12. TESTING AND ADJUSTING TRACKSHOE TENSION
• 15.13. AIR BLEEDING FROM HYDRAULIC CIRCUITS
• 15.14. RELEASING RESIDUAL PRESSURE FROM THE CIRCUITS
• 15.15. CHECKING AND REGULATING PRESSURE IN THE HYDRAULIC CIRCUITS
• 15.16. TESTING AND SETTING OF MAIN VALVES
• 15.17. ADJUSTING PC VALVE
• 15.18. MEASURING LS DIFFERENTIAL PRESSURE AND ADJUSTING LS VALVE
• 15.19. CHECKING AND ADJUSTING PRESSURES IN THE SERVOCONTROL FEED UNIT
• 15.20. MEASURING PUMPS DELIVERY AND FLOW CONTROL STARTING POINT PUMP P1
• 15.21. MEASURING TRAVEL DEVIATION
• 15.22. ADJUSTING THE MAXIMUM SPEED OF THE TRAVEL MOTORS
• 15.23. MEASURING INNER OIL LEAKAGE OF TRAVEL MOTOR
• 15.24. ADJUSTING BOOM AND ARM SAFETY VALVES
• 15.25. ADJUSTING 2nd BOOM SAFETY VALVES
• 15.26. MEASURING AND SETTING OF PRESSURE SWITCH SIGNAL OVERLOAD OPERATION
• 15.27. MEASUREMENT OF INTERNAL OIL LEAKAGES IN THE SWING MOTOR
• 15.28. CHECKING FOR LEAKAGES INSIDE THE SWIVEL JOINT
• 15.29. ANALYSIS OF THE CAUSES OF HYDRAULIC DRIFTS
• 16. DISASSEMBLY AND ASSEMBLY
• 16.1. HOW TO READ THE MANUAL
• 16.2. PRECAUTIONS TO BE TAKEN WHEN WORKING
• 16.3. SPECIAL TOOLS
• 16.4. STARTER MOTOR
• 16.4.1. REMOVAL AND INSTALLATION
• 16.5. ALTERNATOR
• 16.5.1. REMOVAL AND INSTALLATION
• 16.6. INJECTION PUMP
• 16.6.1. REMOVAL
• 16.6.2. INSTALLATION
• 16.7. NOZZLE HOLDER
• 16.7.1. REMOVAL AND INSTALLATION
• 16.8. CYLINDER HEAD
• 16.8.1. REMOVAL
• 16.8.2. INSTALLATION
• 16.9. SEAT
• 16.9.1. REMOVAL AND INSTALLATION
• 16.10. CABIN
• 16.10.1. REMOVAL AND INSTALLATION
• 16.11. ENGINE HOOD
• 16.11.1. REMOVAL AND INSTALLATION
• 16.12. FRONT HOOD
• 16.12.1. REMOVAL AND INSTALLATION
• 16.13. HEATING FAN
• 16.13.1. REMOVAL AND INSTALLATION
• 16.14. HYDRAULIC OIL TANK
• 16.14.1. REMOVAL AND INSTALLATION
• 16.15. ENGINEPUMP GROUP
• 16.16. ENGINEPUMP COUPLING JOINT
• 16.16.1. REMOVAL AND INSTALLATION
• 16.17. MAIN PUMP INPUT SHAFT OIL SEAL
• 16.17.1. REMOVAL AND INSTALLATION
• 16.18. GEAR PUMP
• 16.18.1. REMOVAL AND INSTALLATION
• 16.19. SWIVEL JOINT
• 16.19.1. REMOVAL AND INSTALLATION
• 16.20. SWING MOTOR
• 16.20.1. REMOVAL AND INSTALLATION
• 16.21. SWING MACHINERY
• 16.21.1. REMOVAL AND INSTALLATION
• 16.21.2. DISASSEMBLY
• 16.21.3. ASSEMBLY
• 16.22. CONTROL VALVE
• 16.22.1. REMOVAL AND INSTALLATION
• 16.23. REVOLVING FRAME
• 16.23.1. REMOVAL
• 16.23.2. INSTALLATION
• 16.24. COUNTERWEIGHT
• 16.24.1. REMOVAL AND INSTALLATION
• 16.25. SWING CIRCLE
• 16.25.1. REMOVAL AND INSTALLATION
• 16.26. TRACK SHOES
• 16.26.1. REMOVAL AND INSTALLATION
• 16.27. SPROCKET ASSEMBLY
• 16.27.1. REMOVAL AND INSTALLATION
• 16.28. TRAVEL GEAR MOTOR
• 16.28.1. REMOVAL AND INSTALLATION
• 16.28.2. DISASSEMBLY
• 16.28.3. ASSEMBLY
• 16.29. BALL BEARING PRELOAD
• 16.29.1. ADJUSTING
• 16.30. AXIAL CLEARANCE ON TAPERED ROLLER BEARINGS
• 16.30.1. ADJUSTING
• 16.31. IDLER AND RECOIL SPRING ASSEMBLY
• 16.31.1. REMOVAL AND INSTALLATION
• 16.32. IDLER
• 16.32.1. DISASSEMBLY AND ASSEMBLY
• 16.33. RECOIL SPRING GROUP AND CYLINDER
• 16.33.1. DISASSEMBLY AND ASSEMBLY
• 16.34. TRACK ROLLER
• 16.34.1. REMOVAL AND INSTALLATION
• 16.35. CARRIER ROLLER
• 16.35.1. REMOVAL AND INSTALLATION
• 16.36. PPC VALVE (BOOMBUCKET)
• 16.36.1. REMOVAL
• 16.36.2. INSTALLATION
• 16.37. PPC VALVE (ARMSWING)
• 16.37.1. REMOVAL
• 16.37.2. INSTALLATION
• 16.38. BLADE PPC VALVE
• 16.38.1. REMOVAL AND INSTALLATION
• 16.39. TRAVEL PEDAL CONTROL
• 16.39.1. REMOVAL AND INSTALLATION
• 16.40. t BOOM SWING PEDAL CONTROL
• 16.40.1. REMOVAL AND INSTALLATION
• 16.41. BOOM CYLINDER (FOR 1PIECE BOOM)
• 16.41.1. REMOVAL AND INSTALLATION
• 16.42. BOOM CYLINDER (FOR 2PIECE BOOM)
• 16.42.1. REMOVAL
• 16.42.2. INSTALLATION
• 16.43. d BOOM CYLINDERS
• 16.43.1. REMOVAL
• 16.43.2. INSTALLATION
• 16.44. ARM CYLINDER
• 16.44.1. REMOVAL AND INSTALLATION
• 16.45. BUCKET CYLINDER
• 16.45.1. REMOVAL AND INSTALLATION
• 16.46. BOOM SWING CYLINDER
• 16.46.1. REMOVAL AND INSTALLATION
• 16.47. BLADE CYLINDER
• 16.47.1. REMOVAL AND INSTALLATION
• 16.48. WORK EQUIPMENT CYLINDERS
• 16.48.1. DISASSEMBLY
• 16.48.2. ASSEMBLY
• 16.49. WORK EQUIPMENT (FOR 1PIECE BOOM)
• 16.49.1. REMOVAL AND INSTALLATION
• 16.50. WORK EQUIPMENT (FOR 2PIECE BOOM)
• 16.50.1. REMOVAL
• 16.50.2. INSTALLATION
• 16.51. BUCKET
• 16.51.1. REMOVAL AND INSTALLATION
• 16.52. BOOM (FOR 1PIECE BOOM)
• 16.52.1. REMOVAL AND INSTALLATION
• 16.53. t BOOM
• 16.53.1. REMOVAL
• 16.53.2. INSTALLATION
• 16.54. SWING BRACKET
• 16.54.1. REMOVAL AND INSTALLATION
• 16.55. BLADE
• 16.55.1. REMOVAL AND INSTALLATION
• 17. MAINTENANCE STANDARD
• 17.1. SWING MACHINERY
• 17.2. SERVOCONTROL FEED UNIT
• 17.3. TRAVEL PPC VALVE
• 17.4. PPC VALVE
• 17.5. BLADE SAFETY VALVE
• 17.6. CYLINDERS
• 17.7. WORK EQUIPMENT (1PIECE BOOM)
• 17.8. WORK EQUIPMENT (2PIECE BOOM)