Komatsu WA380-8, Operation & Maintenance Manual

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REMARK
If drain plug (2) is heavy to operate, apply grease to O-ring (6) of plug (2) according to the following proce-
dure.
1) Place a container under drain hose (4) to catch the
drained fuel.
2) Loosen plug (2) and drain all the fuel and sediment
through drain hose (4).
3) Check that nothing more comes out from drain hose
(4), then remove plug (2).
4) Apply a suitable amount of grease to O-ring (6). At this
time, take care that grease will not stick to water drain
port (a) and threaded portion of the plug.
5) Tighten plug (2) by hand until it stops.
6) Remove the container for catching the drained fuel.
• If transparent cup (3) is so dirty that the inside cannot be seen, clean it when replacing the filter.
• When the plug (2) has been removed during the cleaning work, apply grease to O-ring (6) and
tighten with your finger until it stops.
METHOD FOR CHECKING COOLANT LEVEL, ADDING COOLANT
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WARNING
• Do not open the radiator cap unless necessary. When checking the coolant level, check the reser-
voir tank when the engine is cold.
• Immediately after the engine is stopped, the coolant is at high temperature. And the pressure is still
accumulated in the radiator. If the cap is removed in this condition, it is dangerous that you may get
burn injury. Always wait for the temperature to go down, and turn the cap slowly to release the pres-
sure.
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CAUTION
When refilling with coolant, support your body securely by using the steps and handrails provided.
1.
Open platform cover (1) on the right side of the machine.
OPERATION MACHINE OPERATIONS AND CONTROLS
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