Komatsu WA500-6H Operation & Maintenance Manual page 289

Maintenance
18. Add undiluted supercoolant through radiator water filler (4).
19. Add tap water up to the mouth of the air bleed plug (5), then
tighten plug (5).
Tightening torque:
22 ± 2.5 N·m {2.25 ± 0.25 kgf·m, 16.3 ± 1.8 lbft.}
20. Add tap water up to the mouth of radiator water filler (4).
For details of the ratio for mixing supercoolant and water,
see "Water and supercoolant mix ratio table".
21. Drain the coolant from sub-tank (8), then clean the inside of
the sub-tank.
22. Add coolant to sub-tank (8) to a point between the FULL and
LOW lines.
23. Start the engine, run at low idling for 5 minutes, then run at
high idling for another 5 minutes. (This is to remove the air
from the coolant.)
24. Stop the engine and wait for 3 minutes.
25. Loosen radiator cap (4) slightly to release the pressure, then
remove the cap.
26. Add tap water through radiator water filler (4).
27. Tighten radiator cap (4).
WA500-6H – VEAM430100
4.9 Service procedure
When required
8
GK050192
GK050193
4-35