Komatsu WB140PS-2-N and WB150PS-2-N Backhoe Loaders (USA) Workshop Manual (CEBD011100)

Illustrated factory Workshop Manual for Komatsu Backhoe Loaders Models WB140PS-2-N and WB150PS-2-N.

This manual will assist you in diagnosing, repairing, and adjusting for your backhoe loader.
You can use a Windows, Mac, or Android device to view this manual. You only need to have a PDF reader installed.

Covered Models (USA):
   WB140PS-2-N (SN: A40001-)
   WB150PS-2-N (SN: A70001-)

Format: PDF, 498 pages
Language: English
Table of Contents:
   FOREWORD
      SAFETY
      GENERAL
      HOW TO READ THE SHOP MANUAL
      HOISTING INSTRUCTIONS
      COATING MATERIALS
      STANDARD TIGHTENING TORQUE
      ELECTRIC WIRE CODE
      CONVERSION TABLES
   STRUCTURE AND FUNCTION
      POWER TRAIN
      TRANSMISSION
      TRANSMISSION
      DRIVE SHAFTS
      CONTROL VALVE BLOCK
      REAR AXLE
      HYDRAULIC PUMP
      STEERING UNIT
      HYDRAULIC CIRCUIT
      SHOVEL CONTROL VALVE
      BACKHOE CONTROL VALVE
      CLSS (CLOSED CENTER LOAD SENSING SYSTEM)
      SOLENOID VALVE
      SAFETY VALVE
      BRAKE PUMP
      SHOVEL CYLINDERS
      BACKHOE CYLINDERS
      BACKHOE CYLINDER MAINTENANCE STANDARD
      FRONT WORKING EQUIPMENT
      SWING BRACKET
      BACKHOE WORK EQUIPMENT
      AIR-CONDITIONING UNIT
   TESTING, ADJUSTING AND TROUBLESHOOTING
      NORMAL OR STANDARD TECHNICAL DATA
      SPECIAL TOOLS
      MEASURING ENGINE SPEED
      ADJUSTING VALVE CLEARANCE
      MEASURING COMPRESSION PRESSURE
      FUEL INJECTION TIMING
      FAN BELT
      COMPRESSOR BELT
      ACCELERATOR PEDAL AND LEVER
      BRAKE PEDAL AND ALIGNMENT
      AIR BLEEDING
      ATTACHMENTS HYDRAULIC CIRCUIT
      SENSING SIGNAL (LS VALVE)
      UNLOADING VALVE
      PRIORITY VALVE
      STEERING CONTROL SYSTEM PRESSURE
      BRAKE SYSTEM
      ENGINE SPEED CONTROL
      POWER TRAIN PRESSURES
      POWER TRAIN CLUTCHES FUNCTION
      ANALYSIS OF HYDRAULIC DRIFT
      AIR-CONDITIONING UNIT
      FRONT AXLE TROUBLESHOOTING
      REAR AXLE TROUBLESHOOTING
      TRANSMISSION TROUBLESHOOTING
      ELECTRONIC CONTROL UNIT INSPECTION
   DISASSEMBLY AND ASSEMBLY
      METHOD OF USING MANUAL
      PRECAUTIONS DURING OPERATION
      SPECIAL TOOLS
      STARTING MOTOR
      ALTERNATOR
      AIR CONDITIONING COMPRESSOR
      INJECTION PUMP
      INJECTION NOZZLES
      THERMOSTAT
      COOLING LIQUID PUMP
      TURBOCHARGER
      CYLINDER HEAD
      ACCUMULATOR DISCONNECT SWITCH
      FRONT COUNTERWEIGHT
      RADIATOR OIL COOLER UNIT
      CONDENSER
      MUFFLER
      EXHAUST PIPE
      ENGINE HOOD
      CAB
      HEAT AND AIR CONDITIONING GROUP
      FUEL TANK
      HYDRAULIC OIL TANK
      ENGINE-GEARBOX-PUMP GROUP
      PISTON PUMP
      TRANSMISSION
      TRANSMISSION
      CONVERTER
      HEADLIGHT CONTROL GROUP
      STEERING UNIT
      WORKING BRAKE PUMP GROUP
      FRONT WORK EQUIPMENT CONTROL VALVE
      FRONT AXLE
      FRONT AXLE
      REAR AXLE
      WORK EQUIPMENT
      CYLINDERS
      BOOM SWING CYLINDER
      BOOM SAFETY CYLINDER
      BACKHOE WORKING EQUIPMENT
      BACKHOE BUCKET
      BACKHOE ARM
      TELESCOPIC ARM, COMPLETE
      BACKHOE BOOM
      BACKHOE SWING BRACKET
      BACKHOE OUTRIGGERS
   OTHERS
      HYDRAULIC CIRCUIT (CONTROL VALVE)
      HYDRAULIC CIRCUIT (PUMP AND TANK)
      ELECTRICAL SCHEMATIC (Sheet 1 of 3)
      ELECTRICAL SCHEMATIC (Sheet 2 of 3)
      ELECTRICAL SCHEMATIC (Sheet 3 of 3)
      AIR CONDITIONER CIRCUIT