49
RCS Climbing Device and Hydraulics
Assembly Instructions
Part D Operations
D5 Remedial Measures for Malfunctions
D5.2 Venting the system
In order to ensure a reliable operation
of the system, the system must be
completely vented during the initial
commissioning on site, after tubes and
hoses have been replaced, or after main-
tenance work has been carried out on
the cylinder. In this process, the oil level
in the hydraulic pump must always be
checked and topped up as required.
Venting during initial commissioning
1. Couple hose on the hydraulic pump
side.
2. Connect coupling pair at the other
end to the cylinder.
3. Place cylinder in an upright position.
4. Completely extend the cylinder in
order to displace the air pockets on
the rod side.
5. Uncouple the cylinder and create
a short-circuit connection.(Fig. 59)
6. Switch on hydraulic pump and
flush hose for approx. 1 minute by
operating the hand valve.
7. Uncouple hose ends from each other
and re-connect the cylinder.
8. Place the cylinder upside down.
9. Completely retract the cylinder in
order to displace the air pockets on
the piston side.
10. Uncouple cylinder and flush hose
once again for approx. 1 minute by
means of a short-circuit connection
in order to eliminate air pockets.
11. Extend and retract the cylinder pair
several times in order to check the
synchronisation.
Fig. 58: Free hose couplings
Fig. 59: Short-circuit connection