Performing Maintenance
OXiStop OXS-LID
en
Page 55 / 112
MoWa OXS-LID 3992764e en-us 2018-08-10.docx
2018-08-10
To fill the hydraulic tank via the OLF 5 bypass flow filtration unit (2.1),
proceed as follows:
1.
Fully unscrew screw plug (B.22) to bleed air from the hydraulic tank.
Optional: Unscrew the screw plug (Z1) on the "Connection kit for
rapid bleeding for OXS" and open the ball valve (Z2) (see also page
66).
2.
Unscrew the screw plug (B.08) on the valve block (connection B08).
Mount a suction hose to this connection (G ¾") and insert the other
end into an unpressurized external oil container to suck out the oil.
3.
Open the selector valve (4.7) by switching from position (a) to position
(b).
4.
Move all working cylinders to a position in which they are filled with
the least amount of oil.
5.
Switch on the OLF 5 bypass flow filtration unit (2.1) on. The oil is now
pumped into the hydraulic tank. Fill the hydraulic tank up to the
marking
on the fluid level indicator (7.24).
6.
Close the selector valve (4.7) by switching from position (b) to
position (a).
7.
Start the hydraulic system with a low fluid flow rate and a low system
pressure. This gives the air bubbles in the tank sufficient time to rise.
We recommend:
- each 100 liters of tank volume
≈ differential flow rate < 30 l/min
- each 1000 liters of tank volume
≈ differential flow rate < 300 l/min
Bleed air from the hydraulic system by moving each individual
working cylinder back and forth several times in succession. Operate
the components, e.g. hydraulic motors or cylinders, at reduced speed.
8.
During the topping up process, return the working cylinders to the
same initial position they were in before filling. Define and document
the positions of working cylinders, hydraulic accumulators, etc., by
means of markings or notes on the hydraulic system for subsequent
fluid level monitoring.
