Franklin Electric FPS MH Series Installation instructions

50 Hz
Horizontal
Multistage
Centrifugal
Pumps
Assembly and
Disassembly
Instructions

1
Disassembly Procedure
1. Unloose the screws of fan cover and
remove it.
3. Remove the plugs from the pump casing
5 .  Remove the motor holder.
2. Remove the fan by means of a
screwdriver.
4 .  Using a bench vice lock the pump from
the motor shaft then release the preload
screws as shown in the picture.

2
Disassembly Procedure
7. Remove the O-ring from the seal plate.
9 .  Remove stages, spacers and impellers.
11. Insert the specic tool /pipe having very
ne wall) between the rubber of the
mechanical seal and the shaft. Pull the
tool holding the mechanical seal
upwards to the end of the shaft.
8. Unscrew and then remove the
impellers’ pre-loading nut and washer.
10. Remove the mechanical seal locking
disk, split rings and washer.
12. Pull out the seal plate.

3
Disassembly Procedure
13. Remove the static portion of the
mechanical seal from the seal plate.
15.  Pull out together the rotor and motor
ange.
17. Extract the rotor from the motor ange.
14. Unscrew and then remove the tie bolts.
16. Remove the motor cover and the
compensation ring.

4
Re-assembly Procedure
18. Insert the rotor into motor ange.
20.  Place the compensation spring on top of
motor bearing.
22. Insert and fasten the tie bolts.
19. Couple the stator 19. Insert the rotor into
motor ange. with motor ange.
21. Couple the motor ange.
23. Put motor up side down and lock the
shaft with a bench vice.

5
Re-assembly Procedure
24. Use the alcool to lubiricate the static part
of the mechanical seal and then put the
seal into its housing.
26.  Lubricate the mechanical seal,and slide
it down on the shaft. If available use the
supplied tool to ease this operation.
28. Position the washer, split rings and disk.
25. Place the seal plate as shown.
27. Bring the seal faces together and
remove the tool.
29. Position the impellers, the spacers and
pump stages.

6
Re-assembly Procedure
30. Tighten rmly the preloading nut and its
washer.
32.  Lubricate the O-ring with alcohol and
then position the pump casing.
34. Secure the pump casing to the motor by
tightening the pre-loading screws.
31. Couple the O-ring to the seal plate.
33. Position the motor holder.
35. Screw up the inlet and discharge
plugs.

7
Re-assembly Procedure
36. By means of a mallet put back the motor
fan.
37. Position the motor fan cover and tighten
it rmly.

8
Notes