Maintenance, repair and care work
Cirrus 3/4/6000 DB2034 08.04
143
10.2.4 Pressure reservoir (professional workshop job)
Pressure reservoir – way of function
The wedge ring roller is loaded with the machine weight to reconsolidate the soil.
With the aid of hydraulic rams the machine weight is also applied to the wedge ring
rollers attached to the wings. As hydraulic oil is nearly incompressible, the pressure is
not maintained, e.g. when the oil cools down, even with locked hydraulic rams. The
hydraulic rams retract for a few millimetres.
In order to pressurise the hydraulic rams without burdening the tractor hydraulic pump,
a pressure of approx. 100 bar is built up in a pressure reservoir filled with nitrogen.
(Fig. 237/1).
Observe in the case of repair:
The hydraulic system and the pressure reservoir Die
(Fig. 237/1) are under high pressure (approx. 100 bar).
In case of necessary repair work only a professional
workshop with appropriate tools authorised to remove
the hydraulic hose assemblies or to unbolt or open the
pressure reservoir.
For all work on the pressure reservoir and the
connected hydraulic system the standard EN 982
(safety technical demands on fluidic devices) should be
adhered to.
Danger!
The hydraulic system and the con-
nected pressure reservoir are under
high pressure (approx. 100 bar).
Fig. 237