Komatsu WA250-5L, WA250PT-5L wheel loader pdf shop manual

Table of Contents for KOMATSU-CEBM011605 manual

• CEBM011605 - WA250-5L/WA250PT-5L
  • CONTENTS
• 01 GENERAL
  • SPECIFICATION
  • FUEL, COOLANT AND LUBRICANTS
• 10 STRUCTURE AND FUNCTION
  • ENGINE AND DRIVE SYSTEM MOUNTING
  • DRIVE SYSTEM DAMPER
  • COOLING SYSTEM
  • POWER TRAIN
  • HST HYDRAULIC PIPING DIAGRAM
  • HST PUMP
  • HIGH-PRESSURE CUT-OFF VALVE
  • HST MOTORS
  • TRANSFER
  • TRANSFER OIL COOLER
  • CLUTCH SOLENOID VALVE
  • AXLES
  • DIFFERENTIALS
  • LIMITED-SLIP DIFFERENTIAL
  • FINAL DRIVE
  • AXLE MOUNTING AND CENTER HINGE CARIER
  • STEERING PIPING SYSTEM
  • STEERING COLUMN
  • PRIORITY VALVE
  • ORBIT-ROLL VALVE
  • 2-WAY RESTRICTOR VALVE
  • STEERING CYLINDER
  • EMERGENCY STEERING PIPING
  • EMERGENCY STEERING VALVE
  • BRAKE PIPING
  • BRAKE VALVE
  • INCHING VALVE
  • CHARGE VALVE
  • ACCUMULATOR (FOR BRAKE)
  • SLACK ADJUSTER
  • BRAKE
  • PARKING BRAKE CONTROL
  • PARKING BRAKE
  • HYDRAULIC PIPING
  • WORK EQUIPMENT LEVER LINKAGE
  • HYDRAULIC TANK
  • 4-GEAR PUMP UNIT
  • ACCUMULATOR (FOR PPC CIRCUIT)
  • LOCK VALVE
  • BY-PASS VALVE
  • QUICK COUPLER SOLENOID VALVE
  • E.C.S.S. VALVE (IF EQUIPPED)
  • ACCUMULATOR (FOR E.C.S.S.) (IF EQUIPPED)
  • HYDRAULIC PIPING OF COOLING SYSTEM
  • COOLING FAN MOTOR
  • WORK EQUIPMENT CONTROL VALVE
  • WORK EQUIPMENT PPC VALVE
  • ATTACHMENT PPC VALVE (IF EQUIPPED)
  • WORK EQUIPMENT LINKAGE
  • BUCKET
  • BUCKET POSITIONER, BOOM KICK-OUT, AND DUMP SPEED
  • WORK EQUIPMENT CYLINDER
  • AIR CONDITIONER PIPING
  • MACHINE MONITORING SYSTEM
  • INDIVIDUAL CIRCUIT DIAGRAMS OF THE MACHINE MONITOR
  • MACHINE MONITOR
  • ELECTRICAL SYSTEM (HST CONTROLLER SYSTEM)
  • HST CONTROLLER
  • SELECTING FORWARD-REVERSE SELECTOR SWITCH
  • ENGINE STARTING CIRCUIT
  • ENGINE STOP CIRCUIT
  • PREHEATING CIRCUIT (AUTOMATIC PREHEAT SYSTEM)
  • PARKING BRAKE CIRCUIT
  • ELECTRONICALLY CONTROLLED SUSPENSION SYSTEM
  • COUPLER PLUNGER CONTROL SYSTEM
  • SENSORS
  • KOMTRAX SYSTEM
• 20 TESTING, ADJUSTING AND TROUBLESHOOTING
  • STANDARD VALUE TABLE
  • SPECIAL TOOLS
  • ENGINE COMPONENTS
  • MEASURING ENGINE SPEED
  • OPERATING FORCE OF ACCELERATOR PEDAL
  • OPERATING ANGLE OF PEDAL
  • ADJUSTING ENGINE STOP SOLENOID
  • ADJUSTING ENGINE SPEED SENSOR
  • REFRIGERANT COMPRESSOR BELT
  • MEASURING DIRECTIONAL LEVER EFFORT
  • HST OIL PRESSURE
  • MEASURING CLUTCH CONTROL PRESSURE
  • STEERING WHEEL
  • STEERING OIL PRESSURE
  • HYDRAULIC FAN
  • REVERSING FAN CONTROLLER, IF EQUIPPED
  • MEASURING BRAKE PEDAL
  • BRAKE PEDAL LINKAGE
  • MEASURING BRAKE PERFORMANCE
  • ACCUMULATOR CHARGE PRESSURE
  • MEASURING BRAKE OIL PRESSURE
  • MEASURING WEAR OF BRAKE DISC
  • BLEEDING AIR FROM BRAKE CIRCUIT
  • MEASURING PARKING BRAKE PERFORMANCE
  • PARKING BRAKE LINKAGE
  • MEASURING PARKING BRAKE RELEASE PRESSURE
  • WORK EQUIPMENT CONTROL LEVER
  • WORK EQUIPMENT PRESSURE
  • WORK EQUIPMENT PPC OIL PRESSURE
  • RELEASING REMAINING PRESSURE IN HYDRAULIC CIRCUIT
  • BUCKET POSITIONER
  • BOOM KICK-OUT
  • PROXIMITY SWITCH ACTUATION DISPLAY LAMP
  • PROCEDURE FOR CHECKING DIODE
  • SPECIAL FUNCTIONS OF MACHINE MONITOR
  • FLOW OF MODES AND FUNCTIONS
  • PM CLINIC INSPECTION CHART
• 20-101 TROUBLESHOOTING (GENERAL)
  • POINTS TO REMEMBER WHEN TROUBLESHOOTING
  • SEQUENCE OF EVENTS IN TROUBLESHOOTING
  • PRECAUTIONS WHEN CARRYING OUT MAINTENANCE
  • CHECKS BEFORE TROUBLESHOOTING
  • CONNECTION TABLE FOR CONNECTOR PIN NUMBERS
  • T-ADAPTER TABLE
  • CONNECTOR TYPES AND MOUNTING LOCATIONS
  • CONNECTOR LAYOUT DRAWING
• 20-301 TROUBLESHOOTING OF HST CONTROLLER SYSTEM (HST MODE)
  • POINTS TO REMEMBER WHEN TROUBLESHOOTING SYSTEM
  • HST CONTROLLER SYSTEM DIAGRAM
  • TROUBLESHOOTING CODE DISPLAY
  • FUSE SYSTEM CHECK
  • INFORMATION CONTAINED IN TESTING PROCEDURES
  • ERROR CODE: [989F00]
  • ERROR CODE: [DHH1KX]
  • ERROR CODE: [DLE2LC]
  • ERROR CODE: [DW26KZ]
  • ERROR CODE: [DX19KZ]
  • ERROR CODE: [DX20KZ]
  • TROUBLESHOOTING CODE: [HST-1]
  • TROUBLESHOOTING CODE: [HST-2]
  • TROUBLESHOOTING CODE: [HST-3]
  • TROUBLESHOOTING CODE: [HST-4]
  • TROUBLESHOOTING CODE: [HST-5]
• 20-402 TROUBLESHOOTING OF HST MONITOR SYSTEM (HST MODE)
  • POINTS TO REMEMBER WHEN TROUBLESHOOTING SYSTEM
  • MONITOR SYSTEM CIRCUIT DIAGRAM
  • TROUBLESHOOTING CODE DISPLAY
  • FUSE SYSTEM CHECK
  • INFORMATION CONTAINED IN TESTING PROCEDURES
  • ERROR CODE: [15B0NX]
  • ERROR CODE: [2G42ZG]
  • ERROR CODE: [989F00]
  • ERROR CODE: [989FN1]
  • ERROR CODE: [AB00L6]
  • ERROR CODE: [AB00MA]
  • ERROR CODE: [B@BAZG]
  • ERROR CODE: [B@BCNS]
  • ERROR CODE: [B@BCZK]
  • ERROR CODE: [B@C7NS]
  • ERROR CODE: [B@CRNS]
  • ERROR CODE: [D5ZHL6]
  • ERROR CODE: [DAF0KT]
  • ERROR CODE: [DAJ0KR]
  • ERROR CODE: [DD15LD]
  • ERROR CODE: [DD16LD]
  • ERROR CODE: [DD17LD]
  • ERROR CODE: [DD18LD]
  • ERROR CODE: [DDK3KB]
  • ERROR CODE: [DDS5L6]
  • ERROR CODE: [DGE2KX]
  • ERROR CODE: [DGE3KX]
  • ERROR CODE: [DGH1KX]
  • ERROR CODE: [DGR1KX]
  • ERROR CODE: [DGR4KX]
  • ERROR CODE: [DHE4KA]
  • TROUBLESHOOTING CODE: [MON-1]
  • TROUBLESHOOTING CODE: [MON-2]
  • TROUBLESHOOTING CODE: [MON-3]
  • TROUBLESHOOTING CODE: [MON-4]
  • TROUBLESHOOTING CODE: [MON-5]
  • TROUBLESHOOTING CODE: [MON-6]
  • TROUBLESHOOTING CODE: [MON-7]
  • TROUBLESHOOTING CODE: [MON-8]
  • TROUBLESHOOTING CODE: [MON-9]
  • TROUBLESHOOTING CODE: [MON-10]
  • TROUBLESHOOTING CODE: [MON-11]
  • TROUBLESHOOTING CODE: [MON-12]
  • TROUBLESHOOTING CODE: [MON-13]
  • TROUBLESHOOTING CODE: [MON-14]
  • TROUBLESHOOTING CODE: [MON-15]
• 20-501 TROUBLESHOOTING OF ELECTRICAL SYSTEM (E MODE)
  • POINTS TO REMEMBER WHEN TROUBLESHOOTING SYSTEM
  • ELECTRICAL SYSTEM CIRCUIT DIAGRAM
  • FUSE SYSTEM CHECK
  • INFORMATION CONTAINED IN TESTING PROCEDURES
  • CODE: (E-1)
  • CODE: (E-2)
  • CODE: (E-3)
  • CODE: (E-4)
  • CODE: (E-5)
  • CODE: (E-6)
  • CODE: (E-7)
  • CODE: (E-8)
  • CODE: (E-9)
  • CODE: (E-9)
  • CODE: (E-10)
  • CODE: (E-11)
  • CODE: (E-11)
  • CODE: (E-11)
  • CODE: (E-11)
  • CODE: [E-11]
  • CODE: (E-11)
  • CODE: (E-12)
  • CODE: (E-13)
  • CODE: (E-13)
  • CODE: (E-13)
  • CODE: (E-13)
  • CODE: (E-13)
• 20-601 TROUBLESHOOTING OF HYDRAULIC MECHANICAL SYSTEM (H MODE)
  • METHOD OF USING TROUBLESHOOTING CHART
  • FAILURE CODE AND CAUSE TABLE
  • CODE: (H-1)
  • CODE: (H-2)
  • CODE: (H-3)
  • CODE: (H-4)
  • CODE: (H-5)
  • CODE: (H-6)
  • CODE: (H-7)
  • CODE: (H-8)
  • CODE: (H-9)
  • CODE: (H-10)
  • CODE: (H-11)
  • CODE: (H-12)
  • CODE: (H-13)
  • CODE: (H-14)
  • CODE: (H-15)
  • CODE: (H-16)
  • CODE: (H-17)
  • CODE: (H-18)
  • CODE: (H-19)
  • CODE: (H-20)
  • CODE: (H-21)
  • CODE: (H-22)
  • CODE: (H-23)
  • CODE: (H-24)
  • CODE: (H-25)
  • CODE: (H-26)
• 20-701 TROUBLESHOOTING OF ENGINE SYSTEM (S MODE)
  • METHOD OF USING TROUBLESHOOTING CHARTS
  • (S-1) ENGINE STARTING PERFORMANCE IS POOR
  • (S-2) ENGINE HAS STARTING PROBLEMS
  • (S-3) ENGINE DOES NOT RUN SMOOTHLY
  • (S-4) ENGINE STOPS DURING OPERATIONS
  • (S-5) ENGINE SPEED HUNTS
  • (S-6) ENGINE LACKS POWER
  • (S-7) EXHAUST SMOKE IS BLACK
  • (S-8) OIL CONSUMPTION IS EXCESSIVE OR EXHAUST SMOKE IS BLUE
  • (S-9) OIL BECOMES CONTAMINATED QUICKLY
  • (S-10) FUEL CONSUMPTION IS EXCESSIVE
  • (S-11) OIL FOUND IN COOLANT, OR COOLANT SPURTS FROM RADIATOR
  • (S-12) OIL PRESSURE CAUTION LAMP LIGHTS UP
  • (S-13) OIL LEVEL RISES (COOLANT OR FUEL FOUND IN OIL)
  • (S-14) COOLANT TEMPERATURE TOO HIGH (OVERHEATING)
  • (S-15) ABNORMAL NOISE IS HEARD WHEN ENGINE IS RUNNUNG
  • (S-16) EXCESSIVE VIBRATION WHEN ENGINE IS RUNNING
• 20-901 TROUBLESHOOTING AIR CONDITIONING
  • AIR CONDITIONING SYSTEM
• 30 DISASSEMBLY AND ASSEMBLY
  • HOW TO USE THIS MANUAL
  • PRECAUTIONS WHEN PERFORMING AN OPERATION
  • SPECIAL TOOL LIST
  • SKETCHES OF SPECIAL TOOLS
  • CONNECTOR REPAIR PROCEDURES
  • FUEL INJECTION PUMP ASSEMBLY
  • NOZZLE HOLDER ASSEMBLY
  • CYLINDER HEAD ASSEMBLY
  • ENGINE ASSEMBLY
  • RADIATOR ASSEMBLY
  • AIR AFTERCOOLER
  • HYDRAULIC OIL COOLER
  • COOLING FAN AND FAN MOTOR
  • FUEL TANK
  • TRANSFER
  • TRANSFER ASSEMBLY
  • PARKING BRAKE ASSEMBLY
  • FRONT AXLE ASSEMBLY
  • REAR AXLE ASSEMBLY
  • AXLE HOUSING ASSEMBLY
  • DIFFERENTIAL ASSEMBLY
  • HST PUMP AND 4-GEAR PUMP ASSEMBLY
  • HST PUMP ASSEMBLY
  • HST MOTOR 1 ASSEMBLY
  • HST MOTOR 2 ASSEMBLY
  • HST MOTOR ASSEMBLY
  • WORK EQUIPMENT CONTROL VALVE ASSEMBLY
  • TRAVEL DAMPER VALVE ASSEMBLY
  • HYDRAULIC TANK
  • WORK EQUIPMENT ASSEMBLY (Z-BAR LINKAGE)
  • WORK EQUIPMENT ASSEMBLY (PARELLEL TOOL CARRIER)
  • HYDRAULIC CYLINDER ASSEMBLY
  • OPERATOR'S CAB ASSEMBLY
  • OPERATOR'S CAB GLASS
  • CENTER HINGE PIN
  • COUNTERWEIGHT
  • AIR CONDITIONER UNIT ASSEMBLY
  • AIR CONDITIONER COMPRESSOR ASSEMBLY
  • MONITOR PANEL
  • KOMTRAX TERMINAL ASSEMBLY
• 90 SCHEMATICS AND DIAGRAMS
  • HYDRAULIC CIRCUIT DIAGRAM
  • ELECTRICAL CIRCUIT DIAGRAM