Komatsu WA420-3H Wheel Loader Operation & Maintenance Manual
220 pages · Publication VEAM470400
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- Models
- WA420-3H
- Serial coverage
- WA420H30462 to WA420H30566
- Manual type
- Operation & Maintenance Manual
- Pages
- 220
- Publication
- VEAM470400
- Condition
- Brand new
What's inside
From the manual's own table of contents: 10 sections, 93 entries. See sample pages (PDF, 379 KB)
Location of plates, table to enter serial No. and distributor5 topics
- Dimensions, weights and data
- Dimensions, weights and data WA420-3
- Dimensions, weights and data WA420-3 High-Lift
- Equipment, CE-conform
- Loading
General precautions7 topics
- Before starting the engine
- Machine operation
- Transportation
- Personnel
- Before carrying out maintenance
- During maintenance
- Tyres
Position for attaching safety labels46 topics
- General view of machine
- General view of control and gauges
- Machine motor
- Switches
- Control levers, pedals
- Steering column tilt lever
- Cap with lock
- Safety bar
- Towing pin
- Grease pump
- Backup alarm
- Fuse
- Slow-blow fuse
- Air conditioner
- Check before starting the engine
- Starting engine
- Operations and checks after starting engine
- Machine travel
- Shifting the gear
- Changing direction
- Turning
- Stopping machine
- Operation of work equipment
- Operations with the wheel loader
- Precautions for operation
- Adjusting work equipment position
- Parking the machine
- Checks after completion of operation
- Stopping engine
- Check after stopping engine
- Locking
- Handling the tires
- Loading, unloading work
- Precautions for loading
- Precautions for transportation
- Precautions for low temperature
- Precautions after completion of work
- After cold weather
- Before storage
- During storage
- After storage
- When machine runs out of fuel
- Towing the machine
- If battery is discharged
- Malfunktion of brake
- Other trouble
Guides to maintenance2 topics
- Oil, fuel, coolant
- Electric system
Wear parts list4 topics
- Lubrication chart
- Use of fuel, coolant and lubricants according to ambient temperature
- Introduction of recommended tools
- Torque list
Periodic replacement of safety critical parts11 topics
- Maintenance schedule chart
- Initial 250 hours service
- When required
- Checks before starting
- Every 50 hours service
- Every 100 hours service
- Every 250 hours service
- Every 500 hours service
- Every 1000 hours service
- Every 2000 hours service
- Every 4000 hours service
Specifications8 topics
- Noise level
- Vibration level
- Limit values for the operation on slopes
- ALS-Electronic
- Structure and function of ALS-Electronics
- Precautionary Measures for switching on the ALS-Electronics
- Operating the ALS-Electronics
- Precautions when handling accumulator
Inside this manual
Real pages from this operation & maintenance manual (220 pages). Open the sample pages (PDF, 378 KB)
- Controls and operation, page 50: GENERAL VIEW OF CONTROLS AND GAUGES
- Maintenance, page 149: 17. MAINTENANCE GUIDE
- Specifications, page 158: 20. LUBRICATING AND OPERATING MEANS
This is an operator's 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.
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, 220 pages
Quantity one is the manual described above.
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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
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).