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Hägglunds Fusion Drive system
| Maintenance and repair
Bosch Rexroth AB, RE 15345-WA Version 11.2022,
Fig. 30: Duplex filter change
In this position
you can change
this element
Switching lever
42647
When
removing a filter element take some time to inspect and look for unusual
contamination within the pleats. Contact your Bosch Rexroth representative for
advice.
Duplex filter
1.
Establish which filter side is inoperation – look at pictogram on the filter
2.
Pull the switching lever away from filter and turn the lever through 90° to
change flow direction in the filter housing, see
.
3.
Open the vent screw (do not unscrew it completely) at the switched off filter
side in order to reduce the pressure.
4.
If filter is equipped with drain plug, loosen the drain plug under the filter bowl
to empty from hydraulic fluid. Drain the oil into a clean container to be able to
collect eventual contamination particles for analysis. When empty - tighten the
drain plug.
5.
Change filter cartridge.
It is very important during the mounting not to expose the cartridge to any dirt
i.e. keep it in the plastic cover as long as possible.
6.
Check the O-ring and the backup ring for damage. Change parts if necessary.
7.
Mount the filter bowl. Tighten by hand to stop and back off 1/4:th of a turn.
Vent screw
Table 19:
Weight filter bowl
Filter size
Weight bowl (dry)
Weight cartridge (dry)
Kg
lb
Kg
lb
Single filter 110 (100 bar)
0.6
1.32
0.2
0.44
Duplex filter 110 (63 bar)
0.6
1.32
0.2
0.44
