Komatsu WA500-6H, Руководство по эксплуатации и техническому обслуживанию

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4.9 Service procedure
When required
Maintenance
4-34
WA500-6H – VEAM430100
4. Tighten valve (3) of corrosion resistor (2).
5. Check that the surface of the radiator cap sign is cool
enough to be touched by hand, then slowly turn radiator cap
(4) until it contacts the stopper to release the pressure.
6. Push radiator cap (4) further, turn it until it contacts the stop-
per, then remove it.
7. Remove air bleed plug (5).
8. Prepare a container to catch the supercoolant mix.
9. Open radiator drain valve (6) and oil cooler drain valve (7),
and drain the water.
10. After draining the water, close radiator drain valve (6) and oil
cooler drain valve (7).
11. Add tap water through radiator water filler (4).
12. When the radiator is full, start the engine, and run it at low
idle.
Keep the engine running at low idle for 10 minutes until the
coolant temperature reaches more than 90°C (194°F).
13. Stop the engine.
14. Open radiator drain valve (6) and oil cooler drain valve (7),
and drain the water.
15. After draining the water, close radiator drain valve (6) and oil
cooler drain valve (7).
16. Replace corrosion resistor (2).
For details of the procedure for replacing the corrosion resis-
tor, see "Replace corrosion resistor cartridge (4-75)".
17. Open valve (3) of corrosion resistor (2).
GK050189
3
2
GK050190
4
5
GK050191
7
6
GK050189
3
2