User manual
Change hydraulic oil
The hydraulic oil should only be changed when warm (ca. 40
°C).
Retract all hydraulic cylinders before changing the hydraulic
oil.
Rotate superstructure 90°.
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
Open ventilation filter (SW 36) to release pressure
Open the hydraulic oil tank carefully (tank is under
pressure)
Drain oil into a container
Clean out the hydraulic tank if necessary (Remove cleaning
cap)
Replace return filter cartridge (see 18.2.4)
Screw the drain plug back in properly
Refill with clean hydraulic oil (10 mµ) from a filling station
Open the hydraulic pump plug (hexagonal socket head
screw, SW
6) until clear oil (without bubbles) comes out, close
hydraulic pump
plug
Close hydraulic tank
Let the excavator idle unloaded for a few minutes
Dispose of used hydraulic oil in accordance with environmental
laws.
1
5
4
8
2 /6
Check ventilation filter and sieve
Check ventilation filter and replace if necessary
Check sieve for damage and replace if necessary
20.3 Gear rim
Change gear rim grease:
Remove cap under the gear, unscrew plug (2", SW 28 - square)
with
grease nipple, press out old grease by swiveling superstructure,
screw
plug back in, use the grease nipple to fill the gear rim with fresh
grease,
close cap.
9707672_user manual_en
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