Komatsu PC1250-7, PC1250LC-7, PC1250SP-7 Hydraulic Excavator Shop Manual SEBM027309

Description

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

• 1. COVER
• 2. CONTENTS
• 3. GENERAL
• 3.1. SPECIFICATION DIMENSION DRAWINGS
• 3.2. SPECIFICATIONS
• 3.3. WEIGHT TABLE
• 3.4. FUEL, COOLANT AND LUBRICANTS
• 4. STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
• 4.2. PTO LUBRICATION SYSTEM
• 4.3. RADIATOR, OIL COOLER, AFTERCOOLER AND FUEL COOLER
• 4.4. POWER TRAIN
• 4.5. SWING MACHINERY
• 4.6. CARRIER ROLLER
• 4.7. TRACK ROLLER
• 4.8. TRACK SHOE
• 4.9. AIR PIPING DIAGRAM
• 4.10. AIR CIRCUIT DIAGRAM
• 4.11. HYDRAULIC EQUIPMENT LAYOUT DRAWING
• 4.12. HYDRAULIC TANK
• 4.13. HYDRAULIC PUMP
• 4.14. NO.1 PUMP
• 4.15. NO.2 PUMP
• 4.16. NO.3 PUMP
• 4.17. LINE OIL FILTER
• 4.18. PILOT OIL FILTER
• 4.19. RETURN OIL FILTER
• 4.20. DRAIN OIL FILTER
• 4.21. SPOOL CONTROL VALVE
• 4.22. SPOOL CONTROL VALVE
• 4.23. SWING 4SPOOL CONTROL VALVE
• 4.24. STRAIGHTTRAVEL VALVE
• 4.25. SWING MOTOR
• 4.26. CENTER SWIVEL JOINT
• 4.27. TRAVEL MOTOR
• 4.28. PPC CONTROL RELIEF VALVE
• 4.29. ACCUMULATOR
• 4.30. VALVE CONTROL
• 4.31. WORK EQUIPMENT, SWING PPC VALVE
• 4.32. TRAVEL PPC VALVE
• 4.33. SOLENOID VALVE
• 4.34. HYDRAULIC CYLINDER
• 4.35. WORK EQUIPMENT
• 4.36. DIMENSIONS OF WORK EQUIPMENT
• 4.37. AIR CONDITIONER
• 4.38. ENGINE CONTROL
• 4.39. HPI ENGINE CONTROL SYSTEM
• 4.40. MACHINE CONTROL SYSTEM
• 4.41. MONITOR SYSTEM
• 4.42. SENSOR
• 5. TESTING AND ADJUSTING
• 5.1. STANDARD VALUE TABLE FOR ENGINE RELATED PARTS
• 5.2. STANDARD VALUE TABLE FOR CHASSIS RELATED PARTS
• 5.3. TESTING AND ADJUSTING
• 5.4. TROUBLESHOOTING
• 6. DISASSEMBLY AND ASSEMBLY
• 6.1. HOW TO READ THIS MANUAL
• 6.2. PRECAUTIONS WHEN PERFORMING OPERATION
• 6.3. SPECIAL TOOL LIST
• 6.4. REMOVAL AND INSTALLATION OF FUEL PUMP ASSEMBLY
• 6.5. REMOVAL AND INSTALLATION OF ENGINE FRONT SEAL
• 6.6. REMOVAL AND INSTALLATION OF ENGINE REAR SEAL
• 6.7. REMOVAL AND INSTALLATION OF CYLINDER HEAD ASSEMBLY
• 6.8. REMOVAL AND INSTALLATION OF FUEL COOLER AND AIR CONDITIONER ASSEMBLY
• 6.9. REMOVAL AND INSTALLATION OF AFTERCOOLER ASSEMBLY
• 6.10. REMOVAL AND INSTALLATION OF RADIATOR, HYDRAULIC COOLER ASSEMBLY
• 6.11. REMOVAL AND INSTALLATION OF ENGINE, PTO, HYDRAULIC PUMP ASSEMBLY
• 6.12. REMOVAL AND INSTALLATION OF PTO ASSEMBLY
• 6.13. DISASSEMBLY AND ASSEMBLY OF PTO ASSEMBLY
• 6.14. REMOVAL AND ASSEMBLY OF FUEL TANK ASSEMBLY
• 6.15. DISASSEMBLY AND ASSEMBLY OF FINAL DRIVE ASSEMBLY
• 6.16. REMOVAL AND INSTALLATION OF REVOLVING FRAME ASSEMBLY
• 6.17. REMOVAL AND INSTALLATION OF SWING MACHINERY ASSEMBLY
• 6.18. DISASSEMBLY AND ASSEMBLY OF SWING MACHINERY ASSEMBLY
• 6.19. REMOVAL AND INSTALLATION OF SWING CIRCLE ASSEMBLY
• 6.20. REMOVAL AND INSTALLATION OF TRACK SHOE ASSEMBLY
• 6.21. REMOVAL AND INSTALLATION OF IDLER ASSEMBLY
• 6.22. DISASSEMBLY AND ASSEMBLY OF IDLER ASSEMBLY
• 6.23. DISASSEMBLY AND ASSEMBLY OF IDLER ADJUSTMENT CYLINDER ASSEMBLY
• 6.24. REMOVAL AND INSTALLATION OF RECOIL SPRING ASSEMBLY
• 6.25. DISASSEMBLY AND ASSEMBLY OF RECOIL SPRING ASSEMBLY
• 6.26. REMOVAL AND INSTALLATION OF CARRIER ROLLER ASSEMBLY
• 6.27. DISASSEMBLY AND ASSEMBLY OF CARRIER ROLLER ASSEMBLY
• 6.28. REMOVAL AND INSTALLATION OF TRACK ROLLER ASSEMBLY
• 6.29. DISASSEMBLY AND ASSEMBLY OF TRACK ROLLER ASSEMBLY
• 6.30. REMOVAL AND INSTALLATION OF HYDRAULIC TANK ASSEMBLY
• 6.31. REMOVAL AND INSTALLATION OF HYDRAULIC PUMP ASSEMBLY
• 6.32. REMOVAL AND INSTALLATION OF MAIN PUMP INPUT SHAFT OIL SEAL
• 6.33. DISASSEMBLY AND ASSEMBLY OF MAIN RELIEF VALVE ASSEMBLY
• 6.34. REMOVAL AND INSTALLATION OF 5SPOOL CONTROL VALVE ASSEMBLY (NO. 1)
• 6.35. REMOVAL AND INSTALLATION OF 4SPOOL CONTROL VALVE ASSEMBLY (NO. 2)
• 6.36. REMOVAL AND INSTALLATION OF 4SPOOL CONTROL VALVE ASSEMBLY (NO. 3)
• 6.37. DISASSEMBLY AND ASSEMBLY OF CONTROL VALVE ASSEMBLY (NO. 1)
• 6.38. DISASSEMBLY AND ASSEMBLY OF CONTROL VALVE ASSEMBLY (NO. 2)
• 6.39. DISASSEMBLY AND ASSEMBLY OF CONTROL VALVE ASSEMBLY (NO. 3)
• 6.40. REMOVAL AND INSTALLATION OF SWING MOTOR ASSEMBLY
• 6.41. REMOVAL AND INSTALLATION OF CENTER SWIVEL JOINT ASSEMBLY
• 6.42. DISASSEMBLY AND ASSEMBLY OF CENTER SWIVEL JOINT ASSEMBLY
• 6.43. REMOVAL AND INSTALLATION OF TRAVEL MOTOR ASSEMBLY
• 6.44. DISASSEMBLY AND ASSEMBLY OF WORK EQUIPMENT PPC VALVE ASSEMBLY
• 6.45. DISASSEMBLY AND ASSEMBLY OF TRAVEL PPC VALVE ASSEMBLY
• 6.46. REMOVAL AND INSTALLATION OF BUCKET CYLINDER ASSEMBLY (BACKHOE SPECIFICATION)
• 6.47. REMOVAL AND INSTALLATION OF BUCKET CYLINDER ASSEMBLY (LOADING SHOVEL)
• 6.48. REMOVAL AND INSTALLATION OF BOTTOM DUMP CYLINDER ASSEMBLY (LOADING SHOVEL)
• 6.49. REMOVAL AND INSTALLATION OF ARM CYLINDER ASSEMBLY (BACKHOE SPECIFICATION )
• 6.50. REMOVAL AND INSTALLATION OF ARM CYLINDER ASSEMBLY (LOADING SHOVEL)
• 6.51. REMOVAL AND INSTALLATION OF BOOM CYLINDER ASSEMBLY (BACKHOE SPECIFICATION )
• 6.52. REMOVAL AND INSTALLATION OF BOOM CYLINDER ASSEMBLY (LOADING SHOVEL )
• 6.53. DISASSEMBLY AND ASSEMBLY OF HYDRAULIC CYLINDER ASSEMBLY (BACKHOE SPECIFICATION )
• 6.54. REMOVAL AND INSTALLATION OF BUCKET ASSEMBLY (BACKHOE SPECIFICATION)
• 6.55. REMOVAL AND INSTALLATION OF BUCKET ASSEMBLY (LOADING SHOVEL)
• 6.56. REMOVAL AND INSTALLATION OF ARM ASSEMBLY (BACKHOE SPECIFICATION)
• 6.57. REMOVAL AND INSTALLATION OF ARM ASSEMBLY (LOADING SHOVEL)
• 6.58. REMOVAL AND INSTALLATION OF BOOM ASSEMBLY (BACKHOE SPECIFICATION)
• 6.59. REMOVAL AND INSTALLATION OF BOOM ASSEMBLY (LOADING SHOVEL)
• 6.60. REMOVAL AND INSTALLATION OF OPERATORS CAB ASSEMBLY
• 6.61. REMOVAL AND INSTALLATION OF OPERATORS CAB GLASS (STUCK GLASS)
• 6.62. REMOVAL AND INSTALLATION OF FRONT WINDOW ASSEMBLY
• 6.63. REMOVAL AND INSTALLATION OF COUNTERWEIGHT ASSEMBLY
• 6.64. REMOVAL AND INSTALLATION OF RECEIVER TANK ASSEMBLY
• 6.65. REMOVAL AND INSTALLATION OF AIR CONDITIONER COMPRESSOR ASSEMBLY
• 6.66. REMOVAL AND INSTALLATION OF VHMS CONTROLLER
• 7. OTHERS
• 7.1. HYDRAULIC CIRCUIT DIAGRAM (1/3)
• 7.2. HYDRAULIC CIRCUIT DIAGRAM (2/3)
• 7.3. HYDRAULIC CIRCUIT DIAGRAM (3/3)
• 7.4. ELECTRICAL CIRCUIT DIAGRAM (1/7)
• 7.5. ELECTRICAL CIRCUIT DIAGRAM (2/7)
• 7.6. ELECTRICAL CIRCUIT DIAGRAM (3/7)
• 7.7. ELECTRICAL CIRCUIT DIAGRAM (4/7)
• 7.8. ELECTRICAL CIRCUIT DIAGRAM (5/7)
• 7.9. ELECTRICAL CIRCUIT DIAGRAM (6/7)
• 7.10. ELECTRICAL CIRCUIT DIAGRAM (7/7)