Komatsu PC18MR-3, Operation & Maintenance Manual

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USE OF THE MACHINE AND RELATED CONTROLS
126 WEAM012101
CHECKING THE WIRING SYSTEM
WARNING
q
If fuses are corroded, rusted or do not hold well in place, replace them with fuses featuring the same rat-
ing; before replacing a fuse, make sure that both the starter key and the battery main switch are turned
to OFF.
q
If the wirings show traces of short circuits, contact your Komatsu Distributor, who will locate the fault
and carry out any necessary repairs.
q
Before checking the wiring, take all the necessary safety precautions.
q
Always keep the battery surface clean and make sure that the charge level warning light is always visi-
ble.
Make sure that the fuses are not damaged, that fuses with the required capacity are used, that there are no dis-
connected, broken, or short-circuited wires; furthermore, check the terminals, and tighten any loose ones.
Check the wiring of the battery, the starter and the alternator carefully.
In addition, remove any flammable material that may have accumulated around the battery.
For troubleshooting and repairs, contact your Komatsu Distributor.
CHECKING THE HORN
1. Turn the ignition switch to position ON.
2. Press the button positioned on the right lever and make sure
that the horn functions correctly.
If the horn does not sound, contact your Komatsu Distributor,
who will carry out the necessary repairs.
RKA23520