Komatsu PW98MR-10 Operation & Maintenance Manual page 199

OPERATION
7)
If oil is added in state B, pressurize the hydraulic tank
by performing steps 8) to 10).
NOTICE
If the hydraulic tank is not pressurized, air is
sucked in the pump and it affects the components
badly.
8)
Fully extend the boom, arm, and bucket cylinders.
9)
Remove the oil filler cap.
10) Install the oil filler cap.
11) Move plate (4) to the center of the cap and fix it with bolt (3).
12) Remove cover support lever (2) and fix it to the lever lock securely.
13) Close dirt cover (1).
METHOD FOR CHECKING COOLANT LEVEL, ADDING COOLANT
• 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 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 dirt cover (1) on the right side of the machine.
2.
Lock securely with hood support lever (2).
3.
Check reservoir tank (3).
If the coolant level is within the range between FULL and
LOW, the coolant amount is at a proper level.
4.
If the coolant level is below LOW, add coolant to FULL lev-
el through the filler port of reservoir tank (3).
NOTICE
If reservoir tank (3) 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 (3).
5.
After refilling with coolant, tighten the cap securely.
6.
Remove cover support lever (2) and fix it to the lever lock
securely.
7.
Close dirt cover (1).
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 until they have cooled down before starting the work.
MACHINE OPERATIONS AND CONTROLS
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WARNING
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WARNING
WENAM00061
3-131