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MAINTENAN
C
E
1000HOURS
Change Hydraulic Oil and Clean the Strainer
* Hot oil and components can cause personal
injury. Do not allow hot oil or components to
contact the skin.
* At operating temperature, the hydraulic tank
is hot and can be under pressure.
* To relieve the pressure from the hydraulic
tank, loosen the oil fill plug
c
on the
hydraulic tank.
* Relieve the tank pressure with engine off by
removing fill plug slowly to prevent burns
from hot oil.
1. Place the machine on level ground, with the arm
and bucket cylinder fully retracted and
attachments lowered, as shown. Stop the engine.
2. Relieve the internal pressure from the hydraulic
tank by loosening the fill plug
c
.
3. Clean area thoroughly to keep dirt out of strainer
cover unit
d
and fill plug
c
.
4. Remove the oil drain plug
e
. Drain oil into a
container. Drain oil in all parts of the hydraulic
system thereafter.
NOTE:
Always dispose of used oil as established
by local regulation.
5. Remove the pipe joint
f
. Remove the bolts
g
and the strainer cover unit
d
/strainer
h
from
the hydraulic tank.
6. Inspect the O-ring
i
and replace it if damaged.
7. Clean the inside of the tank with the clean oil.
8. Clean and install the strainer cover unit
d
/
strainer
h
and the pipe joint
f
.
9. Clean and install the drain plug
e
.
CAUTION
Bucket position at the time of
drain the hydraulic oil.
Содержание 55N3
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