Komatsu D475A-5E0 Operation & Maintenance Manual page 172

OPERATION OPERATION
3. Monitor panel speed range display (4) changes as shown on
the right.
(A): Lock lever at safety position
(B): Flashes: Prelube needed
4. Turn the key in starting switch (2) to the START (C) position,
then return it to the ON (D) position. If the key is released while
it is at the START (C) position, the key automatically returns to
the ON (D) position.
5. Monitor panel speed range display (4) changes as shown on
the right, indicates the prelube operation is being performed.
(B): Lights up: Prelube operation taking place
6. The prelube operation is completed in approx. 5 to 60 seconds.
When this happens, monitor panel speed range display (4)
changes as shown on the right.
(The time for the prelube operation changes according to the
ambient temperature and the engine oil temperature.)
Goes out: Prelube operation completed
7. Check that engine pre-heating pilot lamp (3) on the monitor
panel lights up.
If the engine pre-heating pilot lamp does not light, go on to step
9.
OPERATION OPERATION
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