Komatsu D37EX-24 Operation & Maintenance Manual page 183

Bulldozer
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OPERATION
When the oil level is below L mark
The oil is insufficient. Add hydraulic oil through oil filler
port (F) on top of the hydraulic tank.
REMARK
The oil level changes depending on the oil tempera-
ture. Use the following as guide line.
Before starting operation: Between H and L marks (oil
temperature 10 to 30 °C)
During normal operation: Around H mark (oil tempera-
ture 50 to 80 °C)
After adding oil, close the cap securely and always lock with key.
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.
Do not remove the reservoir tank cap while the radiator coolant temperature is high. Boiling coolant
may spurt out. After the coolant temperature goes down, turn the cap slowly to release the pres-
sure, then remove it.
1.
Open the hydraulic tank inspection cover on the left side of the machine.
2.
Check that the coolant level is between FULL and LOW
marks of reservoir tank (1).
When the coolant level is between FULL and LOW
marks
The coolant level is proper.
When the coolant level is below LOW mark
The coolant is insufficient. Add coolant to FULL level
through the filler port of reservoir tank (1).
REMARK
The coolant may overflow from the reservoir tank
drain hose. This is no problem. It occurs because too
much coolant has been added.
After adding, tighten the cap securely.
3.
Check reservoir tank (1) for abnormality.
If reservoir tank (1) is empty, leakage of coolant should be
suspected.
4.
If reservoir tank (1) has abnormality, repair it immediately.
5.
Check the coolant level in the radiator.
6.
If the coolant level is low, add Non-Amine Engine Coolant
(AF-NAC) of the same density as Non-Amine Engine Cool-
ant (AF-NAC) in the radiator, and then add it to reservoir tank (1).
For details, see "METHOD FOR USING FUEL, COOLANT AND LUBRICANTS ACCORDING TO AMBIENT
TEMPERATURE".
7.
After adding, close the hydraulic tank inspection cover.
MACHINE OPERATIONS AND CONTROLS
k
k
WARNING
3-125

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