Komatsu PC15MRX-1 Operation And Maintenance Manual page 80

MACHINE OPERATIONS AND CONTROLS
CHECK ELECTRIC WIRINGS
If the fuses frequently blowor if there are traces of short circuits on the electrical wiring, locate the
cause immediately and carry out repairs, or contact your Komatsu distributor for repairs.
If flammable materials (dead leaves, twigs, dry grass, etc.) accumulate around the battery, they will
cause fire, so always remove such material immediately.
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 clean 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.
Check the wiring of the "battery", "starting motor" and "afternator" carefully in particular.
When carrying out walk-around checks or checks before starting, 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 FUNCTION OF HORN
1. Turn the starting switch to the ON position.
2. Confirm that the horn sounds without delay when the horn button is pressed. If the horn does not sound, ask
your Komatsu distributor for repair.
CHECK FOR WATER AND SEDIMENT IN WATER SEPARATOR, DRAIN WATER
If red ring (1) of the water separator is at the bottom of case (2),
there is no water.
If the ring (1) is floating, there is water up to the bottom of the
ring, so drain the water as follows.
Prepare the filter wrench for fuel filter.
1. Open the engine hood, and set handle to the LOCK posi-
tion.
2. Using the filter wrench, loosen ring (4), then remove case
(2) and throw out the water inside it.
3. Set case (2) in position, then tighten ring (4) to install it.
4. Set handle (3) to the OPEN position.
5. Drain any water or sediment from the fuel tank. For
details, see "DRAIN WATER AND SEDIMENT FROM
FUEL TANK (PAGE 4-40)".
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WARNING
OPERATION