7-52
MAINTENANCE
Clean Suction Filter
--- each time the hydraulic oil is changed.
IMPORTANT: This upper tank area must be very clean
prior to beginning this procedure. Failure to clean the
top of tank may lead to hydraulic system problems due
to system contamination.
A suction filter is located on the bottom of the hydraulic oil
tank.
Clean the suction filter when changing hydraulic oil.
1. After draining hydraulic oil, remove cover (1). Lift to
take out rod (2). Put a cover over the oil supply port to
prevent foreign matter from entering.
When removing the suction filter, take care not to allow
trapped dust to fall into tank.
IMPORTANT: A few small particles in the strainer is
normal. Large metal, rubber pieces, or a large amount
of fine particles is abnormal. If found, contact your
authorized dealer.
2. Clean the suction filter and the hydraulic oil tank inside
with cleaning oil.
3. Supply the specified volume of oil through the oil supply
port while checking the oil level with the oil gauge.
4. Securely insert the suction filter into pipe (3) when
installing the suction filter.
5. Before installing cover (1), check that the rod top is
correctly inserted into support hole (4) on cover (1).
Then, install cover (1) with bolts.
Tightening torque: 50 N·m (37 lbf·ft)
6. Start the engine. While slowly raising or lowering the
arm and tilting the bucket forward and backward, check
for any abnormality. Stop the engine. Check the oil level
using level gauge (5).
M4GB-07-044
1
M4GB-07-048
1
2
3
4
MNEC-07-017
5
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