©
200515 5-5
Draining and filling
EXPLANATORY NOTES ON THE MAINTENANCE ACTIVITIES
ΛΦ45/55 series
5
5.4 DRAINING AND FILLING, RAS-EC STEERING CIRCUIT
Drained steering oil must not be re-
used. Store this hydraulic oil
separately from the other drained
oils and have the oil collected by a
waste-removal company authorised
to do so.
Draining the RAS-EC steering circuit
1. Jack up the trailing axle and support the axle
on stands.
2. Place suitable catch pans under the high-
pressure filter (1), the steering cylinder (2)
and the valve block (3).
3. Clean the steering oil reservoir and the
surrounding area.
4. Remove the filter element from the steering
oil reservoir.
5. Clean the housing and the surrounding area
of the high-pressure filter. Remove the high-
pressure filter.
6. Mark the position of the pipes on the
damping valves (1) and remove the pipes
from the damping valves.
7. Mark the position of the damping valves, if
necessary, and remove the damping valves.
8. Slowly turn the trailing axle manually several
times, until the steering oil gently comes out
of the steering cylinder.
9. Check the sealing rings of the damping
valves for damage and wear. Replace them
if necessary.
}
S7 00 801
1
3
2
S7 00 800
B 25 bar
A 33 bar
A B
1
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