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Komatsu D39PX-21 - CHASSIS TROUBLESHOOTING

Komatsu D39PX-21
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OPERATION OPERATION
3-69
CHECK ELECTRIC WIRING
CAUTION
If fuses are frequently blown or if there are traces of short-circuiting on the electrical wiring, promptly ask
your Komatsu distributor to locate the cause and make the repair.
Keep the top surface of the battery clean and check the breather hole in the battery cap. If it is clogged
with dirt or dust, wash the battery cap to clear the breather hole.
Check for damage and wrong capacity of the fuse and any sign of disconnection or short circuit in the electric wir-
ing. Check also for loose terminals and tighten any loose parts.
Particularly, check the wiring of the “battery“, “starting motor“ and “alternator“ carefully.
When carrying out checks around the battery, always check if there is any accumulation of flammable material
around the battery, and remove such flammable material.
Please contact your Komatsu distributor for investigation and correction of the cause.
CHECK THAT LAMPS LIGHT UP
Check that the head lamp, rear lamp, and instrument lamp light up normally and they are free from stain and dam-
age.
If the lamps do not light, check for a broken bulb or disconected wire, contact your Komatsu distributor for repairs.
1. Turn the starting switch to the ON position.
2. Turn the lamp switches to the
l (ON) position, and check
that all the lamps light up.

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