KOMATSU PC128 PC138 HYDRAULIC EXCAVATOR WORKSHOP SERVICE REPAIR MANUAL



THIS MANUAL IS COMPATIBLE WITH THE FOLLOWING COMPUTER OPERATING SYSTEMS:
# ALL WINDOWS VERSION
# ALL MAC VERSION

# YOU NEED THE ADOBE ACROBAT READER TO VIEW THE DOCUMENT AS THE MANUAL IS PDF FORMAT. IF YOUR COMPUTER DON'T HAVE THIS APPLICATION YOU CAN DOWNLOAD AND INSTALL IT FREE FROM ADOBE ACROBAT WEBSITE

# AS THIS MANUAL IS COMING TO YOU IN ZIP FORMAT, YOU NEED TO EXTRACT THE FILE BEFORE USE BY USING WINZIP OR WINRAR SOFTWARE. IF YOUR COMPUTER DON'T HAVE THIS APPLICATION YOU CAN DOWNLOAD AND INSTALL IT FREE FROM WINZIP WEBSITE



APPLICABLE VEHICLE MODEL:
KOMATSU HYDRAULIC EXCAVATOR PC128US-2 FROM SERIAL NUMBER: 5001-7730 AVANCE
KOMATSU HYDRAULIC EXCAVATOR PC128US-2 FROM SERIAL NUMBER: 7731 & UP GALEO
KOMATSU HYDRAULIC EXCAVATOR PC138US-2 FROM SERIAL NUMBER: 4501 & UP GALEO
KOMATSU HYDRAULIC EXCAVATOR PC138USLC-2E0 FROM SERIAL NUMBER: 1001 & UP GALEO


ENGINE COVERED:
4.0L 4-CYLINDER IN-LINE, 4-CYCLE, WATER-COOLED, TURBOCHARGED, KOMATSU S4D102E-1 ENGINE

3.3L 4-CYLINDER IN-LINE, 4-CYCLE, WATER-COOLED, TURBOCHARGED/AFTER COOLER, KOMATSU SAA4D95LE-3-A 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 AND INTUITIVE ELECTRONIC PDF FORMAT WORKSHOP MANUAL WHICH HAS DETAILED ILLUSTRATIONS AS WELL AS STEP BY STEP INSTRUCTIONS WITH PICTURES & DIAGRAMS. ALL PAGES ARE PRINTABLE, SO RUN OFF WHAT YOU NEED AND TAKE IT WITH YOU INTO THE GARAGE OR WORKSHOP. THIS MANUAL ARE YOUR NUMBER ONE SOURCE FOR REPAIR AND SERVICE INFORMATION. THEY ARE SPECIFICALLY WRITTEN FOR THE DO-IT-YOURSELF AS WELL AS THE EXPERIENCED MECHANIC. USING THIS REPAIR MANUAL IS AN INEXPENSIVE WAY TO KEEP YOUR MACHINE/VEHICLE WORKING PROPERLY. EACH MANUAL PROVIDES STEP-BY-STEP INSTRUCTIONS BASED ON THE COMPLETE DIS-ASSEMBLY OF THE MACHINE. SO, IT ALLOWING YOU TO STOP WASTING MONEY ON ROUTINE MAINTENANCE, AND GIVE YOU ALL THE SOLID INFORMATION AND GUIDANCE NEEDED TO PERFORM LARGER REPAIRS AND MODIFICATIONS AT HOME.