Komatsu WA200-8 Operation & Maintenance Manual page 315

MAINTENANCE
If you turn the steering wheel and stop turning it at
certain position while the oil temperature is low, a time
lag may result until the machine stops after the turning
operation.
In such case, set the frame lock bar to LOCK position
(L) for safety and perform the warm-up operation in a
large place.
At that time, be sure not to relieve the oil pressure in
the circuit for more than 5 seconds.
Repeating the operations from step 12 to 14 moves the
pointer of the engine coolant temperature caution lamp (9)
upward. The pointer of the engine coolant temperature
caution lamp (9) once drops at around the center of scale
(A), after that, continue the above operations for approxi-
mately 10 seconds.
15. Stop the engine.
16. Open the drain valve (5) to drain the coolant.
17. Close the drain valve (5).
18. Add the 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 the Non-Amine Engine Cool-
ant. If large amount of coolant is added at a time, more
air is mixed into the coolant, and the cooling perform-
ance may be lowered. It will cause overheat.
19. 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 minutes.
Keep the radiator cap (2) removed during the above operations.
k k
WARNING
MAINTENANCE PROCEDURE
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