KOMATSU PC138US -8 PC138US-8 EXCAVATOR WORKSHOP MANUAL
KOMATSU PC138US -8 PC138US-8 HYDRAULIC EXCAVATOR WORKSHOP SERVICE REPAIR MANUAL
OPERATION & MAINTENANCE MANUAL ALSO INCLUDED WITH THIS MANUAL
APPLICABLE VEHICLE MODEL:
KOMATSU HYDRAULIC EXCAVATOR PC138US-8 FROM SERIAL NUMBER: 20001 & UP GALEO
KOMATSU HYDRAULIC EXCAVATOR PC138USLC-8 FROM SERIAL NUMBER: 20001 & UP GALEO
ENGINE COVERED:
3.3L 4-CYLINDER IN-LINE, 4-CYCLE, WATER-COOLED, TURBOCHARGED/AFTER COOLER, KOMATSU SAA4D95LE-5 ENGINE
CONTENTS:
GENERAL INFORMATION
SAFETY PRECAUTION
TIGHTENING TORQUE
SPECIFICATIONS
MAINTENANCE STANDARD
CHECK AND ADJUSTMENTS
SPECIAL TOOLS
STRUCTURE AND FUNCTION
POWER TAKE OFF
RADIATOR AND OIL COOLER
POWER TRAIN-SWING CIRCLE
SWING MACHINERY
TRACK FRAME-IDLER CUSHION
HYDRAULIC COMPONENT LAYOUT
VALVE CONTROL
HYDRAULIC TANK AND FILTER
HYDRAULIC PUMP (PISTON PUMP)
CONTROL VALVE-CLSS
SUCTION SAFETY VALVE
SELF PRESSURE REDUCING VALVE
TRAVEL MOTOR (FINAL DRIVE)
SWING MOTOR-SOLENOID VALVE
PPC ACCUMULATOR
ACCUMULATOR FOR BREAKER (OPT)
AIR-CONDITIONER
MONITOR PANEL ASSEMBLY
ELECTRIC COMPONENT LAYOUT
ENGINE CONTROL
ELECTRIC CONTROL SYSTEM
MONITOR SYSTEM
CYLINDER HEAD ASSEMBLY
INJECTION PUMP ASSEMBLY
ENGINE AND MAIN PUMP ASSEMBLY
RADIATOR, HYDRAULIC OIL COOLER
HYDRAULIC OIL COOLER ASSEMBLY
AFTER COOLER ASSEMBLY
CENTER SWIVEL JOINT
TRACK ROLLER-TRACK SHOE
BOOM, BUCKET, ARM, SWING CONTROL
HYDRAULIC CYLINDER
COUNTERWEIGHT
CONTROLLER ASSEMBLY
TROUBLESHOOTING
HYDRAULIC CIRCUIT DIAGRAM
ELECTRIC CIRCUIT DIAGRAM
This is a very comprehensive manual (DOWNLOAD in PDF format) for KOMATSU PC138US -8 PC138US-8 HYDRAULIC EXCAVATOR, Features detailed exploded views. This is the same manual that technicians use to fix your vehicles. Manual covers detailed and complete step-by-step written procedures with pictures and diagrams, fully printable-selected pages or whole manual, illustrated. So, you will not be disappointed. This is the manual for Repairs, Maintenance & servicing.
OPERATION & MAINTENANCE MANUAL ALSO INCLUDED WITH THIS MANUAL
APPLICABLE VEHICLE MODEL:
KOMATSU HYDRAULIC EXCAVATOR PC138US-8 FROM SERIAL NUMBER: 20001 & UP GALEO
KOMATSU HYDRAULIC EXCAVATOR PC138USLC-8 FROM SERIAL NUMBER: 20001 & UP GALEO
ENGINE COVERED:
3.3L 4-CYLINDER IN-LINE, 4-CYCLE, WATER-COOLED, TURBOCHARGED/AFTER COOLER, KOMATSU SAA4D95LE-5 ENGINE
CONTENTS:
GENERAL INFORMATION
SAFETY PRECAUTION
TIGHTENING TORQUE
SPECIFICATIONS
MAINTENANCE STANDARD
CHECK AND ADJUSTMENTS
SPECIAL TOOLS
STRUCTURE AND FUNCTION
POWER TAKE OFF
RADIATOR AND OIL COOLER
POWER TRAIN-SWING CIRCLE
SWING MACHINERY
TRACK FRAME-IDLER CUSHION
HYDRAULIC COMPONENT LAYOUT
VALVE CONTROL
HYDRAULIC TANK AND FILTER
HYDRAULIC PUMP (PISTON PUMP)
CONTROL VALVE-CLSS
SUCTION SAFETY VALVE
SELF PRESSURE REDUCING VALVE
TRAVEL MOTOR (FINAL DRIVE)
SWING MOTOR-SOLENOID VALVE
PPC ACCUMULATOR
ACCUMULATOR FOR BREAKER (OPT)
AIR-CONDITIONER
MONITOR PANEL ASSEMBLY
ELECTRIC COMPONENT LAYOUT
ENGINE CONTROL
ELECTRIC CONTROL SYSTEM
MONITOR SYSTEM
CYLINDER HEAD ASSEMBLY
INJECTION PUMP ASSEMBLY
ENGINE AND MAIN PUMP ASSEMBLY
RADIATOR, HYDRAULIC OIL COOLER
HYDRAULIC OIL COOLER ASSEMBLY
AFTER COOLER ASSEMBLY
CENTER SWIVEL JOINT
TRACK ROLLER-TRACK SHOE
BOOM, BUCKET, ARM, SWING CONTROL
HYDRAULIC CYLINDER
COUNTERWEIGHT
CONTROLLER ASSEMBLY
TROUBLESHOOTING
HYDRAULIC CIRCUIT DIAGRAM
ELECTRIC CIRCUIT DIAGRAM
This is a very comprehensive manual (DOWNLOAD in PDF format) for KOMATSU PC138US -8 PC138US-8 HYDRAULIC EXCAVATOR, Features detailed exploded views. This is the same manual that technicians use to fix your vehicles. Manual covers detailed and complete step-by-step written procedures with pictures and diagrams, fully printable-selected pages or whole manual, illustrated. So, you will not be disappointed. This is the manual for Repairs, Maintenance & servicing.