Komatsu D375A-8, Operation & Maintenance Manual

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5) Remove the hose (1) toward the direction (A), loosen
the drain valve (2), and drain the excessive oil.
When draining the oil, prepare a container to catch the
oil under the drain plug.
6) Tighten the drain valve (2).
7) Check the oil level again.
8) If the oil level becomes correct, tighten the oil filler cap
securely.
METHOD FOR CHECKING DUST INDICATOR
1.
Check if the inside yellow piston of dust indicator (1) is lap-
ped over the peripheral red zone.
2.
If the yellow piston is lapped over the red zone (A), clean
or replace the element immediately.
For the cleaning method of the element, see “METHOD
FOR CHECKING, CLEANING AND REPLACING AIR
CLEANER”.
REMARK
Clean or replace the element even if the air cleaner clog-
ging caution lamp is not lit.
3.
After checking, cleaning, and replacing, press the button of
dust indicator (1) to return the yellow piston to its original
position.
In an environment where the rubber is deteriorated or the
surface is damaged easily (in the direct sunlight, sandy
district, etc.), replace it before reading becomes difficult
because of dirt.
METHOD FOR CHECKING BRAKE OPERATION
1.
Drive the machine in FORWARD 2nd speed range.
2.
Depress the brake pedal and check that the machine stops.
METHOD FOR CHECKING ELECTRIC WIRING
k k
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 of it and to perform the repair.
• Keep the top surface of the battery clean and check the vent hole in the battery cap. If it is clogged
with dirt or dust, wash the battery cap with water to clear the vent hole.
NOTICE
In particular, inspect the wiring of “battery”, “starting motor”, and “alternator” with care.
Perform the following inspection.
• Perform inspection to confirm that the fuses have no defect and their capacity is proper.
• Perform inspection to confirm that there is no disconnection or trace of short-circuiting in the electric wiring
and no damage to the coating.
• Perform inspection to confirm that there is no loose terminals, and tighten any loose parts if found.
MACHINE OPERATIONS AND CONTROLS OPERATION
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