Komatsu WA250PT-5H, Operation & Maintenance Manual

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OPERATION
Explanation of components
Machine monitor
3-19
Inspection and maintenance item 0.
CAUTION
If these lamps light up, stop operations quickly and carry out the following action.
Radiator coolant level caution lamp 0.
This lamp (1) lights up to warn the operator that the coolant
level in the radiator has gone down.
During checks before starting (when the starting switch is
turned to the ON position but the engine is not started), this
monitor lights up if the coolant level in the radiator is low.
At the same time, “E01“ and “COOLANT LOW“ are displayed
on the character display in turn, so check the coolant level in
the radiator sub-tank, and add coolant. Use a suitable climbing
aid (for example a ladder) to climb up the back of the machine
and unscrew the radiator cap.
During operation (engine running)
If the water level in the radiator becomes too low, the radiator
coolant level caution lamp will light up.
At the same time, “E01“ and “COOLANT LOW“ are displayed
on the character display in turn, so stop the engine, check the
coolant level in the radiator sub-tank, and add coolant.
(1) Radiator water level caution lamp (3) HST oil filter clogging caution lamp
(2) Maintenance caution lamp