Komatsu PC1250-7, PC1250SP-7, PC1250LC-7 Hydraulic Excavator Shop Manual SEBM027313

Description

• Model List:
  • PC1250-7 Hydraulic Excavator
  • PC1250SP-7 Hydraulic Excavator
  • PC1250LC-7 Hydraulic Excavator

• 1. COVER
• 2. CONTENTS
• 3. LIST OF REVISED PAGES
• 4. SAFETY
• 4.1. SAFETY NOTICE
• 5. FOREWORD
• 5.1. GENERAL
• 5.2. HOW TO READ THE SHOP MANUAL
• 5.3. HOISTING INSTRUCTIONS
• 5.4. METHOD OF DISASSEMBLING, CONNECTING PUSHPULL TYPE COUPLER
• 5.5. COATING MATERIALS
• 5.6. STANDARD TIGHTENING TORQUE
• 5.7. ELECTRIC WIRE CODE
• 5.8. CONVERSION TABLE
• 5.9. UNITS
• 6. GENERAL
• 6.1. SPECIFICATION DIMENSION DRAWINGS
• 6.2. SPECIFICATIONS
• 6.3. WEIGHT TABLE
• 6.4. FUEL, COOLANT AND LUBRICANTS
• 7. STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
• 7.2. PTO LUBRICATION SYSTEM
• 7.3. RADIATOR, OIL COOLER, AFTERCOOLER AND FUEL COOLER
• 7.4. POWER TRAIN
• 7.5. SWING MACHINERY
• 7.6. AIR PIPING DIAGRAM
• 7.7. AIR CIRCUIT DIAGRAM
• 7.8. HYDRAULIC EQUIPMENT LAYOUT DRAWING
• 7.9. LINE OIL FILTER
• 7.10. PILOT OIL FILTER
• 7.11. RETURN OIL FILTER
• 7.12. DRAIN OIL FILTER
• 7.13. SPOOL CONTROL VALVE
• 7.14. SPOOL CONTROL VALVE
• 7.15. SWING 4SPOOL CONTROL VALVE
• 7.16. STRAIGHTTRAVEL VALVE
• 7.17. SWING MOTOR
• 7.18. CENTER SWIVEL JOINT
• 7.19. TRAVEL MOTOR
• 7.20. PPC CONTROL RELIEF VALVE
• 7.21. ACCUMULATOR
• 7.22. VALVE CONTROL
• 7.23. WORK EQUIPMENT, SWING PPC VALVE
• 7.24. TRAVEL PPC VALVE
• 7.25. SOLENOID VALVE
• 7.26. HYDRAULIC CYLINDER
• 7.27. WORK EQUIPMENT
• 7.28. DIMENSIONS OF WORK EQUIPMENT
• 7.29. AIR CONDITIONER
• 7.30. ENGINE CONTROL
• 7.31. HPI ENGINE CONTROL SYSTEM
• 7.32. MACHINE CONTROL SYSTEM
• 7.33. MONITOR SYSTEM
• 7.34. SENSOR
• 8. TESTING AND ADJUSTING
• 8.1. STANDARD VALUE TABLE FOR ENGINE RELATED PARTS
• 8.2. STANDARD VALUE TABLE FOR CHASSIS RELATED PARTS
• 8.3. TESTING AND ADJUSTING
• 8.4. TROUBLESHOOTING
• 9. DISASSEMBLY AND ASSEMBLY
• 9.1. HOW TO READ THIS MANUAL
• 9.2. PRECAUTIONS WHEN PERFORMING OPERATION
• 9.3. SPECIAL TOOL LIST
• 9.4. REMOVAL AND INSTALLATION OF FUEL PUMP ASSEMBLY
• 9.5. REMOVAL AND INSTALLATION OF ENGINE FRONT SEAL
• 9.6. REMOVAL AND INSTALLATION OF ENGINE REAR SEAL
• 9.7. REMOVAL AND INSTALLATION OF CYLINDER HEAD ASSEMBLY
• 9.8. REMOVAL AND INSTALLATION OF FUEL COOLER AND AIR CONDITIONER ASSEMBLY
• 9.9. REMOVAL AND INSTALLATION OF AFTERCOOLER ASSEMBLY
• 9.10. REMOVAL AND INSTALLATION OF RADIATOR, HYDRAULIC COOLER ASSEMBLY
• 9.11. REMOVAL AND INSTALLATION OF ENGINE, PTO, HYDRAULIC PUMP ASSEMBLY
• 9.12. REMOVAL AND INSTALLATION OF PTO ASSEMBLY
• 9.13. DISASSEMBLY AND ASSEMBLY OF PTO ASSEMBLY
• 9.14. REMOVAL AND INSTALLATION OF FUEL TANK ASSEMBLY
• 9.15. DISASSEMBLY AND ASSEMBLY OF FINAL DRIVE ASSEMBLY
• 9.16. REMOVAL AND INSTALLATION OF REVOLVING FRAME ASSEMBLY
• 9.17. REMOVAL AND INSTALLATION OF SWING MACHINERY ASSEMBLY
• 9.18. DISASSEMBLY AND ASSEMBLY OF SWING MACHINERY ASSEMBLY
• 9.19. REMOVAL AND INSTALLATION OF SWING CIRCLE ASSEMBLY
• 9.20. REMOVAL AND INSTALLATION OF TRACK SHOE ASSEMBLY
• 9.21. REMOVAL AND INSTALLATION OF IDLER ASSEMBLY
• 9.22. DISASSEMBLY AND ASSEMBLY OF IDLER ASSEMBLY
• 9.23. DISASSEMBLY AND ASSEMBLY OF IDLER ADJUSTMENT CYLINDER ASSEMBLY
• 9.24. REMOVAL AND INSTALLATION OF RECOIL SPRING ASSEMBLY
• 9.25. DISASSEMBLY AND ASSEMBLY OF RECOIL SPRING ASSEMBLY
• 9.26. REMOVAL AND INSTALLATION OF CARRIER ROLLER ASSEMBLY
• 9.27. DISASSEMBLY AND ASSEMBLY OF CARRIER ROLLER ASSEMBLY
• 9.28. REMOVAL AND INSTALLATION OF TRACK ROLLER ASSEMBLY
• 9.29. DISASSEMBLY AND ASSEMBLY OF TRACK ROLLER ASSEMBLY
• 9.30. REMOVAL AND INSTALLATION OF HYDRAULIC TANK ASSEMBLY
• 9.31. REMOVAL AND INSTALLATION OF HYDRAULIC PUMP ASSEMBLY
• 9.32. REMOVAL AND INSTALLATION OF MAIN PUMP INPUT SHAFT OIL SEAL
• 9.33. DISASSEMBLY AND ASSEMBLY OF MAIN RELIEF VALVE ASSEMBLY
• 9.34. REMOVAL AND INSTALLATION OF 5SPOOL CONTROL VALVE ASSEMBLY (NO. 1)
• 9.35. REMOVAL AND INSTALLATION OF 4SPOOL CONTROL VALVE ASSEMBLY (NO. 2)
• 9.36. REMOVAL AND INSTALLATION OF 4SPOOL CONTROL VALVE ASSEMBLY (NO. 3)
• 9.37. DISASSEMBLY AND ASSEMBLY OF CONTROL VALVE ASSEMBLY (NO. 1)
• 9.38. DISASSEMBLY AND ASSEMBLY OF CONTROL VALVE ASSEMBLY (NO. 2)
• 9.39. DISASSEMBLY AND ASSEMBLY OF CONTROL VALVE ASSEMBLY (NO. 3)
• 9.40. REMOVAL AND INSTALLATION OF SWING MOTOR ASSEMBLY
• 9.41. REMOVAL AND INSTALLATION OF CENTER SWIVEL JOINT ASSEMBLY
• 9.42. DISASSEMBLY AND ASSEMBLY OF CENTER SWIVEL JOINT ASSEMBLY
• 9.43. REMOVAL AND INSTALLATIONOF TRAVEL MOTOR ASSEMBLY
• 9.44. DISASSEMBLY AND ASSEMBLY OF WORK EQUIPMENT PPC VALVE ASSEMBLY
• 9.45. DISASSEMBLY AND ASSEMBLY OF TRAVEL PPC VALVE ASSEMBLY
• 9.46. REMOVAL AND INSTALLATION OF BUCKET CYLINDER ASSEMBLY
• 9.47. REMOVAL AND INSTALLATION OF BUCKET CYLINDER ASSEMBLY (LOADING SHOVEL)
• 9.48. REMOVAL AND INSTALLATION OF BOTTOM DUMP CYLINDER ASSEMBLY (LOADING SHOVEL)
• 9.49. REMOVAL AND INSTALLATION OF ARM CYLINDER ASSEMBLY (BACKHOE SPECIFICATION)
• 9.50. REMOVAL AND INSTALLATION OF ARM CYLINDER ASSEMBLY (LOADING SHOVEL)
• 9.51. REMOVAL AND INSTALLATION OF BOOM CYLINDER ASSEMBLY (BACKHOE SPECIFICATION)
• 9.52. REMOVAL AND INSTALLATION OF BOOM CYLINDER ASSEMBLY (LOADING SHOVEL)
• 9.53. DISASSEMBLY AND ASSEMBLY OF HYDRAULIC CYLINDER ASSEMBLY (BACKHOE SPECIFICATION)
• 9.54. REMOVAL AND INSTALLATION OF BUCKET ASSEMBLY (BACKHOE SPECIFICATION)
• 9.55. REMOVAL AND INSTALLATION OF BUCKET ASSEMBLY (LOADING SHOVEL)
• 9.56. REMOVAL AND INSTALLATION OF ARM ASSEMBLY (BACKHOE SPECIFICATION)
• 9.57. REMOVAL AND INSTALLATION OF ARM ASSEMBLY (LOADING SHOVEL)
• 9.58. REMOVAL AND INSTALLATION OF BOOM ASSEMBLY (BACKHOE SPECIFICATION)
• 9.59. REMOVAL AND INSTALLATION OF BOOM ASSEMBLY (LOADING SHOVEL)
• 9.60. REMOVAL AND INSTALLATION OF OPERATORS CAB ASSEMBLY
• 9.61. REMOVAL AND INSTALLATION OF OPERATORS CAB GLASS (STUCK GLASS)
• 9.62. REMOVAL AND INSTALLATION OF FRONT WINDOW ASSEMBLY
• 9.63. REMOVAL AND INSTALLATION OF COUNTERWEIGHT ASSEMBLY
• 9.64. REMOVAL AND INSTALLATION OF RECEIVER TANKASSEMBLY
• 9.65. REMOVAL AND INSTALLATION OF AIR CONDITIONER COMPRESSOR ASSEMBLY
• 9.66. REMOVAL AND INSTALLATION OF VHMS CONTROLLER
• 10. OTHERS
• 10.1. HYDRAULIC CIRCUIT DIAGRAM (1/3)
• 10.2. HYDRAULIC CIRCUIT DIAGRAM (2/3)
• 10.3. HYDRAULIC CIRCUIT DIAGRAM (3/3)
• 10.4. ELECTRICAL CIRCUIT DIAGRAM (1/7)
• 10.5. ELECTRICAL CIRCUIT DIAGRAM (2/7)
• 10.6. ELECTRICAL CIRCUIT DIAGRAM (3/7)
• 10.7. ELECTRICAL CIRCUIT DIAGRAM (4/7)
• 10.8. ELECTRICAL CIRCUIT DIAGRAM (5/7)
• 10.9. ELECTRICAL CIRCUIT DIAGRAM (6/7)
• 10.10. ELECTRICAL CIRCUIT DIAGRAM (7/7)