Komatsu PC490-11, Installation And Instruction Manual

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4.
Check if the oil is sticking up to between marks H and L on
dipstick (G).
It is appropriate if the oil level is between marks H and L.
If the oil level is below the L mark, add oil through oil filler
port (F).
5.
If the oil level is higher than H, decrease it to a proper level
according to the following procedure.
1) Remove cover (1).
2) Drain excessive engine oil through drain valve (P) at
the bottom of the engine oil pan.
When draining the engine oil, put a container to re-
ceive the oil under the drain plug.
6.
Check the oil level again.
7.
If the oil is at the correct level, tighten the oil filler cap se-
curely and close the engine hood.
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.
• Always check if there is any accumulation of combustible material around the battery, and remove such
combustible material.
MACHINE OPERATIONS AND CONTROLS OPERATION
3-152