325
137
ø82 x 72
VL7
VL14
VL20
46
15
40
35
3
Fig. 9
8
6.2.2 Reassemble
All parts that are weared off or damaged must be replaced with
original spare parts.
All seals and o-rings must always be replaced.
The suitable seal kit can be used.
Check that lobes and seals are of the same material (NBR-NBR,
VITON-VITON).
During the reassemble all the seals and O-rings must be lubricated
or greased in order to allow the contact and exact matching to the
corresponding surfaces without being damaged.
Single groups reassemble sequence
(Refer to VL 14)
6.2.2.1 End plate - Housing and wearplate group VL 7-14-20
Note: Do not insert the wear bushing Pos. 25!
The assemble sequence of the lobes must be adapted to each
single type of pump (see chart*).
Fig. 8