Komatsu PC22MR-3, Operation & Maintenance Manual

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USE OF THE MACHINE AND RELATED CONTROLS
FUNCTIONING
3-58
2. Check the position of each lever.
3. Insert the key in the ignition switch (2) and turn it to position
ON.
4. Check that the horn goes on for about 1 second and that
the following warning lights are on for about 3 seconds.
q
Pre-heating warning light (3)
q
Battery charge level warning light (4)
q
Engine oil pressure warning light (5)
q
Electrical system control warning light (6) (optional)
q
Engine coolant temperature warning light (7)
q
Fuel level warning light (8)
q
Travel speed increase warning light (9)
If a warning light or indicator does not turn on, or the sound
alarm does not go on, contact a Komatsu distributor, who
will carry out all the necessary repair operations.
After approximately 3 seconds, only the following warning
lights remain on. The other warning lights go out.
q
Battery charge level warning light (4)
q
Engine oil pressure warning light (5)
q
Electrical system control warning light (6) (optional)
5. Press the light switch (10) and make sure that the working
headlamp on the boom turns on. If it does not turn on,
contact a Komatsu distributor, who will carry out all the
necessary repair operations.
WEAM014500