Komatsu PC290LC-7K, PC290NLC-7K Hydraulic Excavator Shop Manual UEBM001601

Description

• Model List:
  • PC290LC-7K Hydraulic Excavator
  • PC290NLC-7K Hydraulic Excavator

• 1. GENERAL
• 1.1. SPECIFICATION DIMENSION DRAWINGS
• 1.2. SPECIFICATIONS
• 1.3. WEIGHT TABLE
• 1.4. FUEL, COOLANT, AND LUBRICANTS
• 2. STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
• 2.1. ENGINE RELATED PARTS
• 2.2. RADIATOR OIL COOLER AFTERCOOLER
• 2.3. POWER TRAIN
• 2.4. FINAL DRIVE
• 2.5. SWING MACHINERY
• 2.6. SWING CIRCLE
• 2.7. TRACK FRAME RECOIL SPRING
• 2.8. IDLER
• 2.9. CARRIER ROLLER
• 2.10. TRACK ROLLER
• 2.11. TRACK SHOE
• 2.12. HYDRAULIC EQUIPMENT LAYOUT DRAWING
• 2.13. HYDRAULIC TANK
• 2.14. HYDRAULIC PUMP
• 2.15. CONTROL VALVE
• 2.16. SELF PRESSURE REDUCING VALVE
• 2.17. CLSS
• 2.18. SWING MOTOR
• 2.19. REVERSE PREVENTION VALVE
• 2.20. CENTRE SWIVEL JOINT
• 2.21. TRAVEL MOTOR
• 2.22. TRAVEL JUNCTION VALVE
• 2.23. TRAVEL PPC SHUTTLE VALVE
• 2.24. VALVE CONTROL
• 2.25. WORK EQUIPMENT SWING PPC VALVE
• 2.26. TRAVEL PPC VALVE
• 2.27. SERVICE PPC VALVE
• 2.28. SOLENOID VALVE
• 2.29. PPC ACCUMULATOR
• 2.30. RETURN OIL FILTER
• 2.31. BOOM HYDRAULIC DRIFT PREVENTION VALVE
• 2.32. LIFT CHECK VALVE
• 2.33. ATTACHMENT CIRCUIT SELECTOR VALVE
• 2.34. HYDRAULIC CYLINDER
• 2.35. WORK EQUIPMENT
• 2.36. AIR CONDITIONER
• 2.37. ENGINE CONTROL
• 2.38. ELECTRONIC CONTROL SYSTEM
• 2.39. MULTI MONITOR SYSTEM
• 2.40. SENSOR
• 3. TESTING AND ADJUSTING
• 3.1. STANDARD VALUE TABLE FOR ENGINE RELATED PARTS
• 3.2. STANDARD VALUE TABLE FOR CHASSIS RELATED PARTS
• 3.3. INSPECTION AND ADJUSTMENT OF ENGINE RPM
• 3.4. MEASUREMENT OF EXHAUST GAS COLOR
• 3.5. ADJUSTMENT OF VALVE CLEARANCE
• 3.6. MEASUREMENT OF COMPRESSION PRESSURE
• 3.7. MEASUREMENT OF BLOWBY PRESSURE
• 3.8. INSPECTION AND ADJUSTMENT OF FUEL INJECTION TIMING
• 3.9. MEASUREMENT OF ENGINE OIL PRESSURE
• 3.10. ADJUSTMENT OF ENGINE SPEED SENSOR
• 3.11. INSPECTION AND ADJUSTMENT OF AIR COMPRESSOR BELT TENSION
• 3.12. EMERGENT ESCAPE FROM FAILURE IN ENGINE CONTROL SYSTEM
• 3.13. MEASUREMENT OF CLEARANCE IN SWING CIRCLE BEARINGS
• 3.14. INSPECTION AND ADJUSTMENT OF TRACK SHOE TENSION
• 3.15. INSPECTION OF WEAR ON SPROCKET
• 3.16. INSPECTION AND ADJUSTMENT OF HYDRAULIC OIL PRESSURE IN HYDRAULIC CIRCUIT FOR WORK EQUIPMENT, SWING AND TRAVEL
• 3.17. INSPECTION AND ADJUSTMENT OF CONTROL CIRCUIT OIL PRESSURE
• 3.18. INSPECTION AND ADJUSTMENT OF PUMP PC CONTROL CIRCUIT OIL PRESSURE
• 3.19. INSPECTION AND ADJUSTMENT OF PUMP LS CONTROL CIRCUIT OIL PRESSURE
• 3.20. MEASUREMENT OF SOLENOID VALVE OUTPUT PRESSURE
• 3.21. MEASUREMENT OF PPC VALVE OUTPUT PRESSURE
• 3.22. ADJUSTMENT OF WORK EQUIPMENT AND SWING PPC VALVE
• 3.23. INSPECTION OF LOCATIONS OF HYDRAULIC DRIFT OF WORK EQUIPMENT
• 3.24. RELEASE OF REMAINING PRESSURE IN HYDRAULIC CIRCUIT
• 3.25. MEASUREMENT OF OIL LEAKAGE AMOUNT
• 3.26. AIR BLEEDING OF VARIOUS PARTS
• 3.27. INSPECTION PROCEDURES FOR DIODE
• 3.28. SPECIAL FUNCTION OF MULTIMONITOR PANEL
• 3.29. PREPARATIONS FOR TROUBLESHOOTING ELECTRICAL SYSTEM
• 3.30. TROUBLESHOOTING
• 3.30.1. TROUBLESHOOTING WHEN SERVICE CODE ELECTRICAL SYSTEM AND FAILURE CODE MECHANICAL SYSTEM ARE INDICATED
• 3.30.2. TROUBLESHOOTING OF ELECTRICAL SYSTEM (EMODE)
• 3.30.3. TROUBLESHOOTING OF HYDRAULIC AND MECHANICAL SYSTEM (HMODE)
• 4. DISASSEMBLY AND ASSEMBLY
• 4.1. HOW TO READ THIS MANUAL
• 4.2. PRECAUTIONS WHEN PERFORMING OPERATION
• 4.3. STARTING MOTOR
• 4.4. FUEL INJECTION PUMP
• 4.5. ENGINE FRONT SEAL
• 4.6. ENGINE REAR SEAL
• 4.7. CYLINDER HEAD
• 4.8. RADIATOR ASSEMBLY
• 4.9. HYDRAULIC OIL COOLER
• 4.10. ENGINE AND HYDRAULIC PUMP
• 4.11. FINAL DRIVE
• 4.12. SWING MOTOR AND SWING MACHINERY
• 4.13. REVOLVING FRAME
• 4.14. CENTER SWIVEL JOINT
• 4.15. HYDRAULIC TANK
• 4.16. CONTROL VALVE
• 4.17. HYDRAULIC PUMP
• 4.18. OIL SEAL IN HYDRAULIC PUMP INPUT SHAFT
• 4.19. WORK EQUIPMENT PPC VALVE
• 4.20. TRAVEL PPC VALVE
• 4.21. HYDRAULIC CYLINDER
• 4.22. WORK EQUIPMENT
• 4.23. AIR CONDITIONER UNIT
• 4.24. COUNTERWEIGHT
• 4.25. OPERATORS CAB
• 4.26. MONITOR ASSEMBLY
• 4.27. GOVERNOR PUMP CONTROLLER
• 5. OTHERS
• 5.1. HYDRAULIC CIRCUIT DIAGRAM
• 5.2. ELECTRICAL CIRCUIT DIAGRAM (1/4)
• 5.3. ELECTRICAL CIRCUIT DIAGRAM (2/4)
• 5.4. ELECTRICAL CIRCUIT DIAGRAM (3/4)
• 5.5. ELECTRICAL CIRCUIT DIAGRAM (4/4)