Form 106323101 rev 3, 07-2021
© Copyright 2021 Franklin Electric Co., Inc.
5 to 50 HP JM Frame
1. Make sure all the components of the kit are clean, free of
burrs and fit properly during the assembly process.
2.
If applicable, remove the protective film from the motor
shaft. Make sure that each motor has the slinger prop-
erly installed. On 50 HP (230/460 V) motors, remove the
metal slinger and replace it with the slinger from the kit.
This slinger is very important and it prevents water from
entering the motor along the shaft.
3. Install the small square ring on the motor shaft. Apply
P80 lubricant emulsion or an equivalent on the small
o-ring and then slide it up against the square ring.
4. Apply anti-seize on the inside of the shaft sleeve and
then slide it over the motor shaft with the stepped end
against the motor shaft shoulder. The sleeve must slip
over the lubricated rings and sit firmly against the motor
shaft shoulder.
5. For DC4 models only:
Install the compression hose
connector in the bracket using a Teflon sealant or an
equivalent.
6. Apply P80 lubricant emulsion or an equivalent on the
mechanical seal o-ring cup and install it into the bracket.
It is very important to keep the sealing surfaces as clean
as possible. Therefore, avoid touching them and keep
them clear from residue and debris.
7. Position the pump bracket with the nameplate area on
the top. Install the bracket with four bolts.
Do not misalign or bind the bracket when you
are tightening the bolts.
Tighten the bolts in a diagonal pattern to the following
torque specifications:
• 3/8” bolts to 20 ft-lb,
• 1/2” bolts to 45 ft-lb
• 5/8” bolts to 93 ft-lb
8. Apply P80 lubricant emulsion or an equivalent on the
mechanical seal bellows and spring and install them
on the motor shaft sleeve. Again, the sealing surfaces
should be kept as clean as possible. Therefore, avoid
touching them and keep them clear from residue and
debris.
9. For DC4 models only:
Lubricate the inside of the brack-
et (hub) wear ring with petroleum jelly or an equivalent.
10. Place the square key into the shaft keyway and carefully
slide the impeller over the motor shaft.
For DC4 models only:
Make sure the spring retainer at
the mechanical seal is in the proper position against the
hub of the impeller.
For all the other models:
Discard the spring retainer at
the mechanical seal.
11. Push the impeller towards the bracket until it contacts the
shaft sleeve. Install the impeller washer and the impeller
bolt at the shaft end. Use 271 Loctite or an equivalent
locking compound. Tighten the bolt to the following
torque specifications:
• 3/8” bolts to 21 ft-lb,
• 1/2” bolts to 90 ft-lb
12. Apply P80 lubricant emulsion or an equivalent on the
large o-ring and then install it on the outside diameter of
the bracket.
13. For DC4 models only:
Install the compression hose
connector in the volute using a Teflon sealant or an
equivalent.
14. For DC3 and DC4 models only:
Lubricate the inside of
the volute wear ring with petroleum jelly or an equivalent.
15. Carefully place the volute into position. With the dis-
charge pointing in the desired position, install the re-
quired quantity of bolts.
Tighten the bolts in a diagonal pattern to the following
torque specifications:
• 3/8” bolts to 20 ft-lb,
• 1/2” bolts to 45 ft-lb
Do not misalign the volute when you are
tightening the bolts. Align it carefully and take
care not to pinch the o-ring.
16. Rotate the impeller by hand and make sure that it rotates
freely. Tightness of the impeller implies a bind or a mis-
alignment.
17. For DC4 models only:
Install the polypropylene tubing
into the compression hose connectors.