English 5.906-548.0 Rev. 00 (04/12)
77
1 Installation mandrel
2 Oil seal
3 Piston guide
Install the oil seal into the piston guide free of oil
and grease using an installation mandrel.
High pressure and low pressure seals consist of a 3-
part seal package each.
Note
The installation direction of the low pressure seals in
the bushing (see cross section drawings) must be ad-
hered to avoid leaks.
1 Plastic washer
2 O ring
3 Bushing
4 Support ring
5 Low pressure seal
6 Back ring
7 Brass support disc
Remove the low pressure seal from the bushing.
1 Low pressure seal
2 Support ring
3 Bushing
Grease the new support ring and the low pressure
seal and install them.
The groove of the seal must point toward the
bushing.
Completely assemble the low pressure seal pack-
ages.
1 Holes
Grease the low pressure seal packages and insert
them into the piston guide over the pistons.
Align the bores at the chamfers of the bush-
ings toward the centre.
Note:
–
High pressure and low pressure seals consist of a
3-part seal package each.
–
To increase the standstill time, the following seal
packages are available (3-parts each):
Low pressure seal 2.885-236.0
High pressure seal 2.885-237.0
–
3 seal packages are required for each pump.
6.6.3 Low pressure seal packages