Fristam Pumps FSP Series, Original Instructions Manual, Page: 18 / 36

/ / FSP SERIES / / /
18
Procedure
Fig. 24 Dismantling of pump cover
1. Loosen the nuts (36) on the pump cover (37) .
2. Remove the nuts, the washers, the pump cover, and the cov-
er seal (38) .
Note for model FSPE35…: If the cover cannot be loosened, tap
on it slightly with a plastic hammer (soft-head hammer) to
loosen.
Fig. 25 Loosening impeller nut
3. Warning! Risk of injury when stopping the impeller by hand.
Block the impeller (39) with a special tool (40) .
4. Loosen the impeller nut (41) , and remove with the O-ring
(42) .
Fig. 26 Removing impeller
5. Take the key (45) and the impeller (44) off of the shaft.
6. Remove the plastic snap ring (43) .
7. Only for pumps with double shaft seals: Remove the flushing
tubes for sealing or quenching liquid.
8. Pull the pump head with the pump-side shaft seal off of the
shaft as follows:
8a. Clamp connection variant
1. Loosen the clamp bolt.
2. Slightly spread the clamp connection with a wedge.
3. Pull the pump casing out of the clamp connection.
8b. Flange connection variant
1. Loosen the fastening screws on the flange and remove.
2. Remove the pump casing.
9. Take the shaft seal out of the pump casing.
9.9 Checking of the Clearances
The position of the impeller is determined by the position on
the shaft.
The clearance is the distance between the impeller and the
pump casing.
36
37
38
39 40
42 43 44
45
41