Komatsu WA800-2 Wheel Loader Service Manual
879 pages · Publication CEBM002400
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- Models
- WA800-2
- Serial coverage
- A20020and up
- Manual type
- Service Manual
- Pages
- 879
- Publication
- CEBM002400
- Condition
- Brand new
What's inside
From the manual's own table of contents: 1 sections, 55 entries. See sample pages (PDF, 829 KB)
General6 topics
- GENERAL
- STRUCTURE AND FUNCTION
- TESTING AND ADJUSTMENT
- DISASSEMBLY AND ASSEMBLY
- MAINTENANCE STANDARD
- OTHER
TROUBLESHOOTING48 topics
- code number
- mode
- chart for engine related failure
- (Follow up is poor)
- is excessive (or exhaust gas is blue)
- quickly
- is excessive
- Oil is in cooling water, or water spurts back, or water level goes down
- becomes too high
- E-6 Parking brake is released when starting switch is turned ON
- E-9 Kick-down switch does not work (l/2)
- E-9 Kick-down switch does not work (2/2)
- Kick-down works mistake when traveling in F2
- Machine does not travel when kick-down switch is pressed
- Preheating is not carried out
- ENGINE OIL LEVEL flashes when engine is stopped
- BATTERY CHARGE flashes when engine is running
- BRAKE LINE FAILURE flashes when engine is running
- ENGINE OIL PRESSURE flashes when engine is running
- flashes when engine is running
- or does not light up
- FAILURE lights up, or does not light up
- CUT-OFF lights up, or does not light up
- Turn signal Hi beam light up, or does not light up
- Turn signal does not flash even when hazard switch is turned ON
- When starting switch is turned ON, monitor panel does not work, or only part works
- When starting switch is turned ON, all monitor panel lights up, but does not go out
- CAUTION item is flashing but buzzer does not sound
- is shown on monitor display, warning lamp lights up
- in fuel gauge
- gauge
- T-2 Machine lacks power or speed
- T-3 Excessive time lag when starting machine or shifting gear
- T-5 Steering wheel does not turn
- T-7 Steering wheel moves unsteadily or is subjected to large shock
- T-9 Air pressure does not rise at all
- Air pressure does not rise to the specified range
- Parking brake does not release, or drags
- Lift arm does not rise
- Bucket moves slowly or has insufficient tilt-back power
- Bucket has large hydraulic drift
- Clean
- F, N, R SIGNAL SYSTEM
- STEERING NEUTRAL SIGNAL SYSTEM
- IN JOYSTICK STEERING ON-OFF SIGNAL SYSTEM
- R SOLENOID SYSTEM
- SYSTEM
- F SWITCH SYSTEM
Inside this manual
Real pages from this service manual (879 pages). Open the sample pages (PDF, 829 KB)
- Troubleshooting, page 337: PRECAUTIONS
- Diagram, page 480: Related electrical circuit diagram
- Specifications, page 792: HYDRAULIC CYLINDER
- Foldout diagram, page 229
Other manuals for this machine
Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the WA800-2 are listed below. Editions cover different serial number ranges: check the serial coverage and tick only the ones that match your machine.
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This is a service manual
Here's how it compares to the other manual types.
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, 879 pages
Quantity one is the manual described above.
Fast free USA shipping
Ships in 1 business day.
60-day returns
Free if the mistake is ours. A manual ordered in error must come back unopened in its shrink-wrap; you pay return shipping and a 20% restocking fee applies. Return policy
Binder not included
Manuals over about 300 pages may need a standard 3-ring binder, which you can buy locally to keep the pages organized for shop use.
Other editions and similar models
Questions about model, serial number, engine coverage or contents? Contact us before purchasing and we'll help confirm it's the right manual. Please verify the manual type, machine model, serial number range and engine coverage before purchasing: manuals ordered in error carry a 20% restocking fee (return policy).