68
n Cleaning of the Pipe filter of the
Hydraulic Pilot System
Dust and dirt collect on the concave side of
the filter.
Clean the filter by letting hydraulic oil flow
through from the convex side.
(A) Oil
n Hydraulic Oil Change (Including
Replacing of the Suction Filter in
the Hydraulic Tank)
3
CAUTION
To avoid personal injury:
lWait long enough for the
hydraulic fluid to cool down.
Then begin with the change of
the hydraulic fluid.
1. Move the excavator to a level ground
and stop the engine. Extend the piston
rods of the cylinders halfway out and
lower the bucket on the ground.
2. Remove the drain plug on the underside
of the hydraulic tank and drain the oil.
(1) Drain plug
3. Remove the cover of the hydraulic tank.
4. With a fork wrench or similar, remove
and exchange the suction filter.
(1) Cover
(2) Suction filter
(3) Drain plug
5. Retighten the drain plug.
6. Fill oil through the oil filling opening on
the top side of the tank.
7. Let the engine run for approx. 5 min. and
check the oil level again.
Hydraulic
oil volumes
3.44 US gal (13 L)
5.55 US gal (21 L)
Hydraulic
tank
Whole oil
volumes