Komatsu PC15MRX-1 Operation And Maintenance Manual page 76

MACHINE OPERATIONS AND CONTROLS
CHECKS BEFORE STARTING
Always carry out the items of the checks in this section before starting the engine.
CHECK COOLANT LEVEL, ADD WATER
Do not open the radiator cap unless necessary. When checking the coolant, always wait for the
engine to cool down and check the sub tank.
Immediately after the engine is stopped, the coolant is at a high temperature and the radiator is under
high internal pressure.
If the cap is removed to drain the coolant in this condition, there is a hazard of burns. Wait for the tem-
perature to go down, then turn the cap slowly to release the pressure before removing it.
1. Open the engine hood on the machine and check that the
cooling water level is between the FULL and LOW marks
on radiator reserve tank (1) (shown in the diagram on the
right).
If the water level is low, add water through the water filler
of reserve tank (1) to the FULL level.
2. After adding water, tighten the caps securely.
3. If the sub tank is empty, there is probably leakage of
water.
After inspecting, repair any abnormality immediately. If
there is no abnormality, check the water level in the radia-
tor. If the water level is low, add water to the radiator, then
fill the reserve tank (1).
3-22
WARNING
OPERATION