24. SERVICE PROCEDURE
24.3.4 CHECK OIL LEVEL IN HYDRAULIC TANK, ADD OIL
g
WARNING
l
When removing the oil filler cap, oil may spurt
out, so turn
the cap
slowly to release the internal pressure before remov-
ing the cap.
l
If oil
has
been
added to above the H mark,
stop
the engine
and wait for the hydraulic oil to cool down, then drain the
1.
2.
3.
excess oil from the drain plug.
If the work equipment is not in the
condition shown in the
diagram
on the right,
start
the engine,
run the engine at low
speed, retract
the
arm and bucket cylinders, then lower the
boom, set the bucket teeth in contact with the ground, and stop
the engine.
Within 15 seconds after stopping the engine, move each control
r
AH82200
lever (for work equipment and-travel) to the full stroke in all
directions to release the internal pressure.
the
machine II Iloo
Forward of
Check sight gauge 0. The oil level is normal if between the H and
L marks.
NOTICE
Do not add oil if the level is above the H line. This will damage
the hydraulic equipment and cause the oil to spurt out.
4. If the level is below the L mark, remove the upper cover of the
hydraulic tank and add oil through oil filler 0.
H
For details of the oil to use, see “20. USE OF FUEL, COOLANT
AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE”.
REMARK
The oil level will vary depending upon the oil temperature.
Accordingly, use the following as a guide:
l
Before operation: around L level
(Oil temperature 10 to 30°C (50 to 86°F))
l
Normal operation: around H level
(Oil temperature 50 to 80°C (122 to 176°F))
AE082220
3-45
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