Komatsu WA380-8, Operation & Maintenance Manual

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13. Stop the engine.
14. Open drain valve (2) to drain the coolant.
15. Close drain valve (2).
16. Add Non-Amine Engine Coolant through the coolant filler
port up to the mouth of the port.
For the concentration of Non-Amine Engine Coolant, see
“Coolant density table”.
NOTICE
Add less than 12 ℓ/min of Non-Amine Engine Coolant.
If large amount of coolant is added at a time, more air
is mixed into the coolant, and the cooling performance
may be lowered. It will cause overheat.
17. Run the engine at low idle for 5 minutes to remove the air
from the coolant, then run at high idle for a further 5 mi-
nutes.
At this time, keep both of the R.H. and L.H. radiator caps
removed.
18. Drain the coolant in reservoir tank.
19. Clean the inside of reservoir tank.
20. Add Non-Amine Engine Coolant to the middle between
FULL and LOW.
21. Stop the engine.
22. Approximately 3 minutes later, add Non-Amine Engine
Coolant up to the mouth of the coolant filler port.
23. Tighten the radiator cap.
METHOD FOR CHECKING OIL LEVEL IN TRANSMISSION CASE, ADDING OIL
k k
WARNING
Immediately after the engine is stopped, its parts and oil are still very hot and may cause burn injury.
Wait for the temperature to go down, and then start the work.
Perform this operation when ooze of oil on the transmission case is recognized or when oil in the coolant is rec-
ognized.
1.
Stop the engine.
MAINTENANCE MAINTENANCE PROCEDURE
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