Fristam Pumps FKL 15, Original Instructions Manual, Page: 18 / 40

/ / FKL PUMP SERIES / / /
18
WARNING
Rotating machine parts. Severe pinching of hands.
► Block the rotors (38) with wooden or plastic wedges.
3. Loosen and remove the rotor fasteners (37) and the
belonging seals.
4. Take the rotors off of the drive and synchronizing shafts.
5. Take the O-rings off of the shafts.
Fig. 22 Removal of pump casing from gearbox
6. Loosen and remove the hex cap screws (43) on the pump
casing.
7. Carefully detach the pump casing (42) from the gearbox
(39) .
If the pump casing is hard to detach from the gearbox, tap
on the suction- and discharge-side connections lightly with
a plastic hammer.
8. Remove the rotating seal rings (41) and the O-rings (40)
from the shafts.
10.8.1 Removal of Shaft Seal
Depending on the shaft seal, proceed as follows:
Pump size 15-20
1. Remove the shaft seal from the pump casing.
2. Remove the rotating seal ring and the O-ring from the shaft.
3. Please check the attached Sectional Drawing of the Shaft Seal
to determine the remaining shaft seal disassembly steps.
Pump size 25-600
Fig. 23 Removal of shaft seal
1. Lay the pump casing (45) onto the workbench with the inte-
rior facing downward.
2. Remove the socket screws (47) on the mechanical seal
chamber (46) .
3. Please check the attached Sectional Drawing of the Shaft Seal
to determine the remaining shaft seal disassembly steps.
10.9 Mounting of the Pump Casing
The pump assembly is dependent on the respective pump size
and model as well as the respective shaft seal. To determine
which shaft seal you have, please see the
Order-Related Docu-
ments .
NOTICE
Incorrect Elastomers. Pump leakiness.
► Ensure that the elastomers are appropriate for the condition
of the pumping medium. Please refer to the
Order-Related
Documents .
Preparation
►
Clean all pump parts. Check for damage and accuracy of fit.
► If necessary, rework or replace pump parts.
► Assemble carefully in clean conditions. The seals can easily
be damaged.
► Replace all O-rings.
► To reduce friction, wet the O-rings and the sliding faces with
water, alcohol, or silicone grease.
► Clean the sealing surfaces of the mechanical seals with a de-
greaser, e.g., OKS 2610 Universal Cleaner. Do not allow the
sealing surfaces to come into contact with oil or grease and
do not touch with your fingers afterwards.
43
42
41
40
39
44
45
46
47