Name: Komatsu WA900-3E0 Wheel Loader Shop Manual SEN05654-01
Price: 50.00 USD
Availability: InStock

Description

Model List:
- WA900-3E0 Wheel Loader

1. COVER
2. Notice of revision
3. Index and foreword
3.1. Table of Contents
3.1.1. Table of Contents
3.2. Foreword
3.2.1. Before reading this manual
4. Specification
4.1. Specification
4.1.1. Specification dimension drawing
4.1.2. Specifications
4.1.3. Weight table
4.1.4. Table of fuel, coolant and lubricants
5. Structure and function
5.1. Cooling system and related devices
5.1.1. Cooling system
5.2. Hydraulic system
5.2.1. Power ladder system
5.3. Electrical system
5.3.1. Power ladder controller
5.3.2. Rear view monitor system
5.3.3. Engine service monitor system
5.3.4. Parking brake circuit
5.3.5. Sensor
6. Standard value table
6.1. Standard value table
6.1.1. Standard value table for chassis
6.1.2. Standard value table for electrical system
7. Testing and adjusting
7.1. Testing and adjusting
7.1.1. Inspection and adjustment of potentiometer
7.1.2. Ladder position calibration procedure
7.1.3. Procedure for testing diodes
8. Troubleshooting
8.1. General information on troubleshooting
8.1.1. Classification and procedures of troubleshooting
8.1.2. Failure codes table
8.1.3. Fuse locations
8.2. Troubleshooting by failure code
8.2.1. Failure code D1EMKA (Disconnection of parking brake interlock relay)
8.2.2. Failure code D1EMKB (Ground fault of parking brake interlock relay)
8.2.3. Failure code D1EMKY (Hot short of parking brake interlock relay)
8.2.4. Failure code D1EPKA (Disconnection of ladder drive pump relay)
8.2.5. Failure code D1EPKB (Ground fault of ladder drive pump relay)
8.2.6. Failure code D1EPKY (Short circuit of ladder drive pump relay)
8.2.7. Failure code D1EQKY (Ladder operation alarm relay output hot short circuit)
8.2.8. Failure code D1EQKZ (Ladder operation alarm relay output abnormalityOpen circuit, ground fault)
8.2.9. Failure code D1ERKB (Ladder raise solenoid output ground fault)
8.2.10. Failure code D1ERKZ (Ladder raise solenoid output abnormality Open circuit, hot short circuit)
8.2.11. Failure code D1ESKB (Ladder lower solenoid output ground fault)
8.2.12. Failure code D1ESKZ (Ladder lower solenoid output abnormality Open circuit, hot short circuit)
8.2.13. Failure code DBL0KR (Power ladder controller CANNET signal line open circuit)
8.2.14. Failure code DBL0KT (Nonvolatile memory write error)
8.2.15. Failure code DBL1KK (Power Low Error Battery direct)
8.2.16. Failure code DBL2KK (Solenoid Power Low Error)
8.2.17. Failure code DDB6KZ (Parking brake system abnormality)
8.2.18. Failure code DDDGKY (Ladder operation switch hot short circuit)
8.2.19. Failure code DDDKKY (Ladder raise operation switch hot short circuit)4035
8.2.20. Failure code DDDLKY (Ladder lower operation switch hot short circuit)4038
8.2.21. Failure code DK5VKX (Ladder angle sensor abnormality Out of range)
8.2.22. Failure code DK5VMA (Power ladder system abnormality)
8.2.23. Failure code DUM9KY (Ladder indicator output hot short circuit)
8.2.24. Failure code DUM9KZ (Ladder indicator output abnormality Open circuit, hot short circuit)
8.2.25. Failure code DV00KY (Ladder interlock caution output hot short circuit)
8.2.26. Failure code DV00KZ (Ladder interlock caution output abnormality Open circuit, ground fault)
8.2.27. Failure code DWNLKA (Ladder cushion valve output open circuit)
8.2.28. Failure code DWNLKB (Ladder cushion valve output ground fault)
8.2.29. Failure code DWNLKY (Ladder cushion valve output hot short circuit)
8.3. Troubleshooting of electrical system (Emode)
8.3.1. E1 Power ladder does not operate
8.3.2. E2 Brake oil temperature warning keeps lighting
8.3.3. E3 Parking brake does not operate (as emergency brake)
8.3.4. E4 Parking brake is applied while machine is traveling.
8.3.5. E5 Parking brake is released as starting switch is turned to ON position.
8.4. Troubleshooting of hydraulic and mechanical system (Hmode)
8.4.1. H1 Power ladder does not move or its speed is low
8.4.2. H2 Fan of ADD cooler does not rotate
8.5. Troubleshooting of maintenance monitor system (K mode)
8.5.1. Maintenance monitor system
8.5.2. K1 Hydraulic oil level gauge flashes
8.6. Troubleshooting for machine monitor (Mmode)
8.6.1. M1 Rear view monitor does not operate
8.6.2. M2 While clearance lamp is turned on, illuminance of rear view monitor remains dark
8.6.3. M3 Rear view monitor does not work in reverseinterlock mode
8.6.4. M4 Illuminance of rear view monitor cannot be adjusted
8.6.5. M5 Optional controller error and realtime monitor sreen are not displayed on engine service monitor
8.6.6. M6 Engine compartment lamp does not light up
8.6.7. M7 Step lamp does not light up
9. Diagrams and drawings
9.1. Hydraulic circuit diagram
9.1.1. Symbols used in hydraulic circuit diagram
9.1.2. Power train hydraulic circuit diagram
9.1.3. Brake, power ladder and additional cooler Hydraulic circuit diagram
9.1.4. Work equipment hydraulic circuit diagram
9.2. Electrical circuit diagram
9.2.1. Symbols used in electric circuit diagram
9.2.2. Electrical circuit diagram
9.2.3. Connector arrangement diagram