107
MAINTENANCE
Daily Inspection (Every 10 Hours)
Inspecting the Hydraulic Oil
Level and Replenishing
Oil may spurt out if caps or filters are
removed or pipes disconnected before
releasing the pressure in the hydraulic
system.
¡Gradually press the air breather button
to relieve tank pressure.
Inspection
The oil level changes according to the oil
temperature. Inspect the oil level in the
hydraulic oil level inspection posture shown
in the diagram.
¡Hydraulic oil level inspection posture
1.Start the engine and run it at low speed.
2.Fully offset the boom to the left.
3.Fully retract the arm and bucket cylinders
and ground the bucket.
4.Ground the dozer blade, then stop the
engine.
5.Inspect the oil level at the sight gauge (4).
¡When the oil temperature is about 20°C
(68°F):
The level should be halfway between the
upper limit (H) and lower limit (L).
If it is below the lower limit (L), replenish.
¡When the oil temperature is about 50 to
80°C (122 to 176°F):
The level should be near the upper limit
(H).
WARNING
Replenishing
1.Slowly turn the vent plug (1) to release the
internal pressure, then remove.
2.Add hydraulic oil up to the middle of the
sight gauge (4).
3.Pressurize the hydraulic tank using the
procedure next page.
4
H
L
4
F4G005
1
2
4
7
5
6
3
8
F4G006
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