Komatsu PC138US-11 Operation & Maintenance Manual page 204

MACHINE OPERATIONS AND CONTROLS
METHOD FOR CHECKING COOLANT LEVEL, ADDING COOLANT
• Do not open the radiator cap unless necessary. When checking the coolant level, check it with the
reservoir tank when the engine is cold.
• Immediately after the engine is stopped, the coolant is still hot and the pressure is 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, turn the cap slowly to release the pressure, then re-
move the cap with care.
1.
Open the fuel filter inspection cover on the right side of the
machine.
2.
Check the reservoir tank (1).
If the coolant level is within the range between FULL and
LOW, the coolant amount is at a proper level.
3.
If the coolant level is below LOW, add coolant to FULL lev-
el through the filler port of reservoir tank (1).
NOTICE
If reservoir tank (1) is empty, leakage of coolant should
be suspected. After checking, repair any abnormality
immediately. If no abnormality is found, check the lev-
el of the coolant in the radiator. If it is low, add coolant
of the same density in radiator according to the cool-
ant density table in "METHOD FOR CLEANING INSIDE
OF COOLING SYSTEM (4-18)", then add coolant to
reservoir tank (1).
4.
Tighten the cap securely after the refilling.
5.
Close the fuel filter inspection cover.
METHOD FOR CHECKING OIL LEVEL IN ENGINE OIL PAN, ADDING OIL
Immediately after the engine is stopped, its parts and oil are still very hot, and may cause burn injury.
Wait for the temperature to go down, and then start the work.
When checking the oil level after the engine has been operated, wait for at least 15 minutes after stopping the
engine.
If the machine is inclining, make it level before checking.
1.
Open the engine hood.
2.
Pull out dipstick (G) and wipe the oil off with a cloth.
3.
Fully insert dipstick (G) into the dipstick pipe, then remove
it.
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WARNING
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WARNING
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OPERATION