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Komatsu WA380-6 with 6D107E-1 Engine Wheel Loader Service Manual

1,805 pages · Publication CEBM022703

$189.95
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Models
WA380-6 with 6D107E-1 Engine
Serial coverage
A54001 and up
Manual type
Service Manual
Pages
1,805
Publication
CEBM022703
Condition
Brand new
Komatsu WA380-6 with 6D107E-1 Engine Wheel Loader Service Manual, publication CEBM022703

What's inside

From the manual's own table of contents: 3 sections, 555 entries. See sample pages (PDF, 1042 KB)

FOREWORD8 topics
  • 12CONTENTS
  • GENERAL
  • STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
  • STANDARD VALUE TABLES
  • TESTING AND ADJUSTING
  • TROUBLESHOOTING
  • DISASSEMBLY AND ASSEMBLY
  • DIAGRAMS AND SCHEMATICS
TROUBLESHOOTING492 topics
  • DRC12, 16 Series Connectors
  • AMP Connectors for Pump Controller (CH700)
  • BOSCH Connectors for Engine
  • SUMITOMO Connectors for Engine
  • CANNON Connector for Engine
  • AMP Connectors for Engine
  • FRAMATOME Connectors for Engine
  • PACKARD Connectors for Engine
  • DT Series Connectors for Engine
  • T-BRANCH BOX and T-BRANCH ADAPTER TABLE
  • MODE CHART
  • INFORMATION CONTAINED IN TESTING PROCEDURES
  • TROUBLESHOOTING BY FAILURE CODE
  • Failure Code Table
  • FUSE BOX AND SLOW-BLOW FUSES
  • Connection Table
  • Fuse Box 1
  • Fuse Box 2
  • Slow-Blow Fuses
  • FAILURE CODES
  • TORQFLOW Transmission: Double Meshing
  • ECMV F Clutch: When Command Current is OFF, Fill Signal is ON
  • 15SALH
  • ECMV F Clutch: When Command Current is ON, Fill Signal is OFF
  • ECMV R Clutch: When Command Current is OFF, Fill Signal is ON
  • 15SBLH
  • ECMV R Clutch: When Command Current is ON, Fill Signal is OFF
  • ECMV 1st Clutch: When Command Current is OFF, Fill Signal is ON
  • 15SELH
  • ECMV 1st Clutch: When Command Current is ON, Fill Signal is OFF
  • ECMV 2nd Clutch: When Command Current is OFF, FIll Signal is ON
  • 15SFLH
  • ECMV 2nd Clutch: When Command Current is ON, Fill Signal is OFF
  • ECMV 3rd Clutch: When Command Current is OFF, Fill Signal is ON
  • ECMV 3rd Clutch: When Command Current is ON, Fill Signal is OFF
  • ECMV 4th Clutch: When Command Current is OFF, Fill Signal is ON
  • 15SHLH
  • ECMV 4th Clutch: When Command Current is ON, Fill Signal is OFF
  • Parking Brake: Malfunction
  • Rear Accumulator: Low Oil Pressure
  • Bucket Positioner: ON/OFF Signals Disagree
  • AA1ANX
  • Air Cleaner: Clogging
  • Alternator: Signal Disagrees with Operating State of Engine
  • AB00MA
  • Alternator: Malfunction
  • B@BAZG
  • Engine: Rotation Derating by Low Engine Oil Pressure
  • B@BAZK
  • Engine Oil: Low Level
  • B@BCNS
  • Engine Coolant: Overheating
  • B@BCZK
  • Engine Coolant: Low Level
  • B@BEBF
  • Water in Fuel Error
  • B@C7NS
  • Brake Oil: Overheating
  • b@CENS
  • Torque Converter Oil: Overheating
  • B@HANS
  • Hydraulic Oil: Overheating
  • Abnormality in Engine Controller
  • Engine Ne or Bkup Speed Sensor Error
  • Charge Pressure Sensor High Error
  • Charge Pressure Sensor Low Error
  • Throttle Sensor High Error
  • Throttle Sensor Low Error
  • Coolant Temperature Sensor High Error
  • Coolant Temperature Sensor Low Error
  • Charge Temperature Sensor High Error
  • Charge Temperature Sensor Low Error
  • Derating of Speed by Abnormally High Charge Temperature
  • Sensor Power Supply 2 Low Error
  • Atmospheric Pressure Sensor High Error
  • Atmospheric Pressure Sensor Low Error
  • Sensor Power Supply 2 High Error
  • Engine Overspeed
  • Ne Speed Sensor Power Supply Error
  • IMV/PCV1 Short Circuit
  • IMV/PCV1 Disconnection
  • Injector #1 Open/Short Error
  • Injector #5 Open/Short Error
  • Injector #3 Open/Short Error
  • Injector #6 Open/Short Error
  • Injector #2 Open/Short Error
  • Injector #4 Open/Short Error
  • Calibration Code Inconsistency
  • Injectors Drive Circuit Error
  • Sensor Power Supply 1 Low Error
  • Sensor Power Supply 1 High Error
  • Abnormally High Level in Water Sensor
  • Abnormally Low Level in Water Sensor
  • Idle Validation Switch Error
  • Idle Validation Action Error
  • Engine Oil Pressure Switch Error
  • Battery Voltage Low Error
  • Battery Voltage High Error
  • Common Rail Pressure High Error 2
  • Common Rail Pressure Sensor High Error
  • Common Rail Pressure Sensor Low Error
  • Derating of Torque by Abnormally High Charge Temperature
  • Common Rail Pressure High Error 1
  • Supply Pump Pressure Very Low Error 1
  • Engine Ne Speed Sensor Error
  • Engine Bkup Speed Sensor Phase Error
  • All Continuous Data Lost Error
  • Engine Bkup Speed Sensor Error
  • KOMNET Datalink Timeout Error
  • Throttle Sensor Power Supply Voltage High Error
  • Throttle Sensor Power Supply Voltage Low Error
  • Supply Pump Pressure Very Low Error 2
  • Abnormality in IMV Solenoid
  • Intake Heater Relay Disconnection Error
  • Intake Heater Relay Short Circuit Error
  • Emergency Steering Relay: Disconnection
  • Emergency Steering Relay: Short Circuit
  • Emergency Steering Relay: Short Circuit with Power Supply Line
  • Backup Lamp Relay: Disconnection
  • Backup Lamp Relay: Short Circuit
  • Joystick Steering Neutral Safety Relay: Disconnection
  • Joystick Steering Neutral Safety Relay: Short Circuit
  • Joystick Steering Neutral Safety Relay: Short Circuit with Power Supply Line
  • ECSS Solenoid: Disconnection
  • ECSS Solenoid: Short Circuit
  • ECSS Solenoid Relay: Short Circuit with Power Supply Line
  • Joystick Steering Solenoid Cut Relay: Disconnection
  • Joystick Steering Solenoid Cut Relay: Short Circuit
  • Joystick Steering Solenoid Cut Relay: Short Circuit with Power Supply Line
  • D5ZHKA
  • Terminal C Signal: Disconnection
  • D5ZHKB
  • Terminal C Signal: Short Circuit
  • D5ZHKZ
  • Terminal C Signal: Disconnection or Short Circuit
  • D5ZHL6
  • Terminal C Signal: Signal Does Not Match Engine Running or Stopped State
  • Auto-Grease Controller: ON/OFF Signals Disagree
  • DAF3KK
  • Machine Monitor: Low Source Voltage (input)
  • DAF5KP
  • Machine Monitor: Low Output Voltage
  • DAFRKR
  • Machine Monitor: CAN Defective Communication
  • DAQ0KK
  • Transmission Controller: Low Source Voltage
  • DAQ0KT
  • Transmission Controller: Abnormality in Controller
  • DAQ2KK
  • Transmission Controller Load Power Supply Line: Low Source Voltage (input)
  • DAQ9KQ
  • Transmission Controller: Disagreement of Model Selection Signals
  • DAQRKR
  • CAN Communication with Transmission Controller: Defective Communication
  • DAQRMA
  • Transmission Controller Option Setting: Malfunction
  • DB2RKR
  • CAN Communication with Engine Controller: Defective Communication
  • DB90KK
  • Work Equipment Controller: Low Source Voltage (input)
  • DB90KT
  • Work Equipment Controller: Abnormality in Controller
  • DB92KK
  • DD95KX
  • Work Equipment Controller Power Supply Output: Out-of-Input Signal Range
  • DB99KQ
  • Work Equipment Controller: Disagreement in Model Selection Signals
  • DB9RKR
  • DB9RMA
  • Work Equipment Controller Option Setting: Malfunction
  • DB9RMC
  • CAN Communication: Defective Operation
  • DD15LD
  • Switch (Panel Switch 1 n): Switch is Pressed for Long Time
  • DD16LD
  • Switch (Panel Switch 2 ‡): Switch is Pressed for Long Time
  • DD17LD
  • Switch (Panel Switch 3 <): Switch is Pressed for Long Time
  • DD18LD
  • Switch (Panel Switch 4 >): Switch is Pressed for Long Time
  • DD1ALD
  • DD1BLD
  • DD1CLD
  • Load Meter Subtotal Switch: Switch is Pressed for Long Time
  • DD1FLD
  • Load Meter Mode Selector Switch (A/B): Switch is Pressed for Long Time
  • DD1GLD
  • Load Meter Mode Selector Switch (+/-): Switch is Pressed for Long Time
  • DD1HLD
  • Load Meter Display Selector Switch: Switch is Pressed for Long Time
  • DD1NLD
  • Fan Reverse Switch: Switch is Pressed for Long Time
  • DD1NL4
  • Fan Automatic Reverse Switch: Switch is Pressed for Long Time
  • DDB6L4
  • Parking Brake Switch (Neutralizer): ON/OFF Signals Disagree
  • DDE5MA
  • Emergency Steering Drive Switch: Malfunction
  • DDK3KA
  • Right FNR Switch: Disconnection
  • DDK4KA
  • Joystick Steering FNR Switch: Disconnection
  • DDK5L4
  • Joystick Steering Shift UP/DOWN Switch: ON/OFF Signals Disagree
  • DDK6KA
  • FNR Lever Switch: Disconnection
  • DDK6KB
  • FNR Lever Switch: Short Circuit
  • DDS5KA
  • Steering Pressure Switch: Disconnected
  • DDS5KB
  • Steering Pressure Switch: Grounded
  • DDT0L4
  • Shift Mode Selector Switch: ON/OFF Signals Disagree
  • DDT4LD
  • Transmission Cutoff Set Switch: Switch is Pressed for Long Time
  • DDW9LD
  • Kickdown Switch: Switch is Pressed for Long Time
  • DDWLLD
  • Hold Switch: Switch is Pressed Down for Long Time
  • DDY0LD
  • Load Meter Cancel Switch: Switch is Pressed for Long Time
  • DF10KA
  • Transmission Shift Lever Switch: Disconnected
  • DF10KB
  • Transmission Shift Lever Switch: Short Circuit
  • DGF1KA
  • Transmission Oil Temperature Sensor: Disconnected
  • DGF1KB
  • Transmission Oil Temperature Sensor: Short Circuit
  • DGH2KX
  • Hydraulic Oil Temperature Sensor: Out-of-Input Signal Range
  • DGR2KA
  • Rear Brake Oil Temperature Sensor: Disconnected
  • DGR2KX
  • Rear Brake Oil Pressure Sensor: Out-of-Input Signal Range
  • DGT1KX
  • Torque Converter Oil Temperature Sensor: Out-of-Input Signal Range
  • DH21KA
  • Loader Pump Pressure Sensor: Disconnection
  • DH21KAB
  • Loader Pump Pressure Sensor: Power Supply Line Short
  • DHPCKX
  • Lift Arm Cylinder Bottom Pressure Sensor: Out-of-Input Signal Range
  • DHPDKX
  • Lift Arm Cylinder Head Pressure Sensor: Out-of-Input Signal Range
  • DHT1KX
  • Transmission Cutoff Pressure Sensor: Out-of-Input Signal
  • DHT8KA
  • Steering Pump Pressure Sensor: Disconnection
  • DHT8KB
  • Steering Pump Pressure Sensor: Short Circuit
  • DK59KA
  • Lift Arm EPC Lever Potentiometer (Main): Disconnection
  • DK59KY
  • Lift Arm EPC Lever Potentiometer (Main): Analog Signals Disagree
  • DK5AKA
  • Lift Arm EPC Lever Potentiometer (Sub): Disconnection
  • DK5AKY
  • Lift Arm EPC Lever Potentiometer (Sub): Short Circuit with Power Supply LIne
  • DK5BKA
  • Bucket EPC Lever Potentiometer (Main): Disconnection
  • DK5BKY
  • Bucket EPC Lever Potentiometer (Main): Short Circuit with Power Supply Line
  • DK5BL8
  • Bucket EPC Lever Potentiometer (Main): Analog Signals Disagree
  • DK5CKA
  • Bucket EPC Lever Potentiometer (Sub): Disconnection
  • DK5CKY
  • Bucket EPC Lever Potentiometer (Sub): Short Circuit with Power Supply Line
  • DK5FKA
  • Joystick Steering EPC Lever Potentiometer (Main): Disconnection
  • DK5FKY
  • Power Supply Line
  • DK5GKA
  • Joystick Steering EPC Lever Potentiometer (Sub): Disconnection
  • DK5GKY
  • DK5FL8
  • Joystick Steering EPC Lever Potentiometer (Main): Analog Signals Disagree
  • DKA0KA
  • Lift Arm Angle Sensor: Disconnection
  • DKA0KY
  • Lift Arm Angle Sensor: Short Circuit with Power Supply Line
  • DKA0L0
  • Lift Arm Angle Sensor: Double Meshing
  • DLT3KA
  • Transmission Output Shaft Speed Sensor: Disconnection
  • DLT3LC
  • Transmission Output Shaft Speed Sensor: Out-of-Input Signal Range
  • DT20KB
  • Transmission Cutoff Indicator Lamp: Short Circuit
  • DUM1KB
  • Remote Positioner Raise Set Indicator Lamp: Short Circuit
  • DUM2KB
  • Remote Positioner Lower Set Indicator Lamp: Short Circuit
  • DV00KB
  • Alarm Buzzer: Short Circuit
  • DW4PKA
  • Lift Arm Raise EPC Solenoid: Disconnection
  • DW4PKB
  • Lift Arm Raise EPC Solenoid: Short Circuit
  • DW4PKY
  • Lift Arm Raise EPC Solenoid: Short Circuit with Power Supply Line
  • DW4QKA
  • Lift Arm Lower EPC Solenoid: Disconnection
  • DW4QKB
  • Lift Arm Lower EPC Solenoid: Short Circuit
  • DW4QKY
  • Lift Arm Lower EPC Solenoid: Short Circuit with Power Supply Line
  • DW4RKA
  • Bucket Tilt EPC Solenoid: Disconnection
  • DW4RKB
  • Bucket Tilt EPC Solenoid: Short Circuit
  • DW4RKY
  • Bucket Tilt EPC Solenoid: Short Circuit with Power Supply Line
  • DW4SKA
  • Buck Dump EPC Solenoid: Disconnection
  • DW4SKB
  • Bucket Dump EPC Solenoid: Short Circuit
  • DW4SKY
  • Bucket Dump EPC Solenoid: Short Circuit with Power Supply Line
  • DW7BKA
  • Fan Reverse Solenoid: Disconnection
  • DW7BKB
  • Fan Reverse Solenoid: Short Circuit
  • DW7BKY
  • Fan Reverse Solenoid: Short Circuit with Power Supply Line
  • DWM1KA
  • Work Equipment Neutral Lock Solenoid: Disconnection
  • DWM1KB
  • Work Equipment Neutral Lock Solenoid: Short Circuit
  • DWM1KY
  • Work Equipment Neutral Lock Solenoid: Short Circuit with Power Supply Line
  • DWN6KA
  • Lift Arm Raise Magnet Detent Solenoid: Disconnection
  • DWN6KB
  • Lift Arm Raise Magnet Detent Solenoid: Short Circuit
  • DWN6KY
  • Lift Arm Raise Magnet Detent Solenoid: Short Circuit with Power Supply Line
  • DWN7KA
  • Lift Arm Float Magnet Detent Solenoid: Disconnection
  • DWN7KB
  • Lift Arm Float Magnet Detent Solenoid: Short Circuit
  • DWN7KY
  • Lift Arm Float Magnet Detent Solenoid: Short Circuit with Power Supply Line
  • DWN8KA
  • Bucket Tilt Magnet Detent Solenoid: Disconnection
  • DWN8KB
  • Bucket Tilt Magnet Detent Solenoid: Short Circuit
  • DWN8KY
  • Bucket Tilt Magnet Detent Solenoid: Shorted with the Power Source
  • DX16KA
  • Fan Pump EPC Solenoid: Disconnection
  • DX16KB
  • Fan Pump EPC Solenoid: Short Circuit
  • DX16KY
  • Fan Pump EPC Solenoid: Short Circuit with Power Supply Line
  • DXA1KA
  • Loader Pump EPC Solenoid: Disconnection
  • DXH1KA
  • Lockup ECMV Solenoid: Disconnection
  • DXH1KB
  • Lockup ECMV Solenoid: Short Circuit
  • DXH1KY
  • Lockup ECMV Solenoid: Short Circuit with Power Supply Line
  • DXH4KA
  • 1st Clutch ECMV Solenoid: Disconnection
  • DXH4KB
  • 1st Clutch ECMV Solenoid: Short Circuit
  • DXH4KY
  • 1st Clutch ECMV Solenoid: Short Circuit with Power Supply Line
  • DXH5KA
  • 2nd Clutch ECMV Solenoid: Disconnection
  • DXH5KB
  • 2nd Clutch ECMV Solenoid: Short Circuit
  • DXH5KY
  • 2nd Clutch ECMV Solenoid: Short Circuit with Power Supply Line
  • DXH6KA
  • 3rd Clutch ECMV Solenoid: Disconnection
  • DXH6KB
  • 3rd Clutch ECMV Solenoid: Short Circuit
  • DXH6KY
  • 3rd Clutch ECMV Solenoid: Short Circuit with Power Supply Line
  • DXH7KA
  • R Clutch ECMV Solenoid: Disconnection
  • DXH7KB
  • R Clutch ECMV Solenoid: Short Circuit
  • DXH7KY
  • R Clutch ECMV Solenoid: Short Circuit with Power Supply Line
  • DXH8KA
  • F Clutch ECMV Solenoid: Disconnection
  • DXH8KB
  • F Clutch ECMV Solenoid: Short Circuit
  • DXH8KY
  • F Clutch ECMV Solenoid: Short Circuit with Power Supply Line
  • DXHHKA
  • 4th Clutch ECMV Solenoid: Disconnection
  • DXHHKB
  • 4th Clutch ECMV Solenoid: Short Circuit
  • DXHHKY
  • 4th Clutch ECMV Solenoid: Short Circuit with Power Supply Line
  • DXHLKA
  • Joystick Steering Right EPC Solenoid: Disconnection
  • DXHLKB
  • Joystick Steering Right EPC Solenoid: Short Circuit
  • DXHLKY
  • Joystick Steering Right EPC Solenoid: Short Circuit with Power Supply Line
  • DXHMKA
  • Joystick Steering Left EPC Solenoid: Disconnection
  • DXHMKB
  • Joystick Steering Left EPC Solenoid: Short Circuit
  • DXHMKY
  • Joystick Steering Left EPC Solenoid: Short Circuit with Power Supply Line
  • DY30MA
  • Motor-Driven Emergency Steering Pump Failure (during Operation of machine)
  • DY30MC
  • Motor-Driven Emergency Steering Pump Failure (Malfunction in Manual Mode)
  • TROUBLESHOOTING: E-MODE
  • Troubleshooting Electrical System
  • Information in Troubleshooting Table
  • Engine Does Not Start
  • Wiper Does Not Operate
  • Windshield Washer Does Not Operate
  • Go Off
  • Working Lamp Does Not Light Up or Go Off
  • Turn Signal Lamp and Hazard Lamp Do Not Light Up or Go Off
  • Brake Lamp Does Not Light or It Keeps Lighting Up
  • Backup Lamp Does Not Light or It Keeps Lighting Up
  • Backup Buzzer Does Not Sound or It Keeps Sounding
  • Horn Does Not Sound or It Keeps Sounding
  • Alarm Buzzer Does Not Sound or It Keeps Sounding
  • Air Conditioner Does Not Operate or Stop
  • KOMTRAX System Does Not Work Properly
  • Indicator Lamps of KOMTRAX Terminal
  • When Kickdown Switch is Turned On, Kickdown Operation Does Not Start
  • When Hold Switch is Pressed, Holding Operation Does Not Start
  • Operated While Parking Brake is Applied
  • Transmission Cutoff Mode Cannot Be Set or Reset
  • Transmission Cutoff Set Cannot be Reset
  • FN Switch Mode Cannot Be Set or Reset
  • Fan Reverse Function Cannot Be Used or Reset
  • Discharge from Loader Pump Does Not Rise from Minimum Level
  • ECSS Function Cannot Be Used or Reset
  • Does Not Light Up
  • Does Not Operate
  • Air Cleaner Clogging Indicator Lamp Does Not Light Up
  • Radiator Coolant Level Caution Lamp Does Not Light Up
  • Caution Lamp Does Not Light Up
  • Oil Temperature Caution Lamp Does Not Light Up
  • Steering Oil Pressure Caution Lamp Does Not Light Up
  • Abnormality in Switch (n) (Panel Switch 1) Input
  • Abnormality in Switch (‡) (Panel Switch 2) Input
  • Abnormality in Switch (<) (Panel Switch 3) Input
  • Abnormality in Switch (>) (Panel Switch 4) Input
  • TROUBLESHOOTING: H-MODE
  • Troubleshooting Hydraulic and Mechanical Systems
  • Using Troubleshooting Chart
  • Failure Codes and Causes Table
  • Machine Does Not Start
  • Torque Converter Lockup is Not Switched OFF (Engine Stalls)
  • Torque Converter Lockup is Not Switched ON
  • Gear is Not Shifted
  • Large Shocks When Starting and Shifting Gears
  • Large Time Lag When Starting and Shifting Gear
  • Torque Converter Oil Temperature is High
  • Steering Does Not Turn
  • Steering Does Not Turn (Joystick Steering, if equipped)
  • Steering Response is Poor
  • Steering, Turning Response is Poor (Joystick Steering, if Equipped)
  • Steering is Heavy
  • When Machine Turns, It Shakes or Jerks
  • When Machine Turns, It Shakes or Jerks (Joystick Steering, if Equipped)
  • Wheel Brake Does Not Work or Does Not Work Well
  • Wheel Brake is Not Released or It Drags
  • Parking Brake Does Not Work or Does Not Work Well
  • Parking Brake is Not Released or It Drags
  • Lift Arm Does Not Rise
  • Lift Arm Speed is Low or Rising Force is Insufficient
  • When Rising, Lift Arm Starts to Move Slowly at a Specific Height
  • Lift Arm Cylinder Cannot Hold Down Bucket (Bucket Floats)
  • Hydraulic Drifts of the Lift Arm Are Large
  • Lift Arm Wobbles During Operation
  • Bucket Does Not Tilt Back
  • Bucket Speed is Low or Tilting-Back Force Is Insufficient
  • Bucket Starts to Operate Slowly in the Midst of Tilting Back
  • Bucket Cylinder Cannot Hold Down the Bucket
  • Hydraulic Drifts of the Bucket Are Large
  • Bucket Wobbles During Travel with Load
  • Lift Arm and Bucket Control Levers Do Not Move Smoothly and Are Heavy
  • During Operation of Machine, Engine Speed Drops Remarkably or Engine Stalls
  • Large Shocks When Work Equipment Starts and Stops
  • ECSS Does Not Operate; Pitching and Bouncing Occur
DISASSEMBLY AND ASSEMBLY52 topics
  • Installation
  • Engine
  • Removal
  • Cooling Fan and Fan Motor
  • FUEL SUPPLY SYSTEM
  • Fuel Supply Pump
  • Fuel Injector
  • Fuel Tank
  • POWER TRAIN
  • Torque Converter and Transmission Assembly
  • Torque Converter (Standard Specification)
  • Disassembly
  • Assembly
  • Torque Converter (Lockup Specification)
  • Transmission
  • Clutch Pack
  • Forward and Reverse Clutch Pack: Disassembly
  • 1st and 4th Clutch Pack: Disassembly
  • 2nd and 3rd Gear Clutch Pack: Disassembly
  • Forward and Reverse Clutch Pack: Assembly
  • 1st and 4th Clutch Pack: Assembly
  • 2nd and 3rd Clutch Pack: Assembly
  • Parking Brake
  • Front Axle
  • Rear Axle
  • Axle Housing
  • Differential Assembly
  • STEERING SYSTEM
  • Steering Valve Assembly
  • BRAKING SYSTEM
  • Parking Brake Discs and Plates
  • UNDERCARRAGE AND FRAME
  • Center Hinge Pin
  • Counterweight
  • HYDRAULIC SYSTEM
  • Work Equipment Control Valve
  • Power Train Pump and Work Equipment Pump Assembly
  • Steering Pump And Cooling Fan Pump Assembly
  • Hydraulic Tank
  • WORK EQUIPMENT
  • Work Equipment Assembly
  • Hydraulic Cylinder
  • CAB AND ATTACHMENTS
  • Cab and Floor Frame
  • Cab Glass (Stuck Glass)
  • Operator Seat Assembly (Standard Specification) (ISRING HAUSEN)
  • Operator Seat Assembly (GRAMMER)
  • Upper Seat
  • Suspension
  • AIR CONDITIONER UNIT ASSEMBLY
  • ELECTRICAL SYSTEM
  • Engine Controller Assembly

Inside this manual

Real pages from this service manual (1,805 pages). Open the sample pages (PDF, 1039 KB)

Sample pages from the Komatsu WA380-6 with 6D107E-1 Engine Wheel Loader Service Manual: Specifications, Diagram, Troubleshooting, Foldout diagram
  • Specifications, page 642: TESTING AND ADJUSTING
  • Diagram, page 1,128: DHPDKX
  • Troubleshooting, page 1,425: TROUBLESHOOTING: H-MODE
  • Foldout diagram, page 1,791

This is a service manual

Here's how it compares to the other manual types.

This manual

Service manual

Factory repair procedures and technical information such as specifications, troubleshooting, and wiring and hydraulic diagrams, for the models and systems the manual covers. See What's inside for its topics.

Operator's manual

Safe operation, controls, maintenance schedules, lubrication points, inspections, and basic checks. Repair procedures are in the service manual.

Parts manual

Illustrated diagrams with factory part numbers for identifying components and ordering parts. Repair procedures are in the service manual.

Engine service manuals are sometimes sold separately, since certain machine models were offered with more than one engine option.

What it's used for

Factory manual for in-house farm and construction shop use. Straightforward, complete, and easy to follow. It contains the OEM information dealership service departments and parts counters use to diagnose problems, identify components, and perform maintenance or repairs correctly.

Service shops and owner/operators who repair their own equipment

Identifying correct parts and seeing how assemblies come apart and go back together

Keeping equipment running with less downtime

Factory manual, 1,805 pages

Quantity one is the manual described above.

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Other editions and similar models

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