Komatsu PC1250-11, Original Instructions Manual

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If there is any problem, the related parts must be replaced. Ask your Komatsu distributor for replacement.
METHOD FOR REPLACING RADIATOR CAP
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WARNING
Immediately after the engine is stopped, the coolant is still hot and the pressure is accumulated in the
radiator. You may get burn injury if you remove the cap to perform draining in this state. Always wait for
the temperature to go down, and turn the cap slowly to release the pressure.
1.
Place the machine on a level ground, then stop the engine.
2.
Remove the cover (1).
3.
Check that the coolant temperature is low enough to touch
the radiator cap surface by bare hand, turn the radiator
cap (2) slowly until it hits the stopper, and release the pres-
sure.
4.
While pushing the radiator cap (2), turn it until it hits the
stopper, then remove it.
5.
Replace the radiator cap (2) with the new one, and tighten
it.
6.
Install the cover (1).
MAINTENANCE PROCEDURE MAINTENANCE
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