Franklin Electric TurfBoss, Owner'S Manual

9

NOTICE: While this will drain the pump, it will 
not necessarily drain all other parts of the piping 
system. If there are any concerns with the proper 
procedure or necessity of draining the suction 
plumbing, contact your contractor.

B. pump Disassembly (Appendix I & Figure 9)

In order to access the internal components of the 
pump, review the exploded diagram of the pump 
assembly as shown on the repair parts page 
(Appendix I). Drain the pump as described above and 
then remove the four bolts that hold the pump case 
to the motor bracket. This will allow the motor and 
hydraulic sub-assembly to be removed from the case 
without disturbing the plumbing. Locate and inspect 
the diaphragm and grommet which are internal water 
seals. Make sure they are in good condition and are 
working properly. To remove the diffuser, loosen the 
3 bolts that attach it to the motor bracket. This will 
expose the impeller and eye-seal. Remove the eye-
seal. In order to remove the impeller, remove the 
cover from the opposite end of the motor and hold 
the shaft with a 7/16” open end wrench. The motor 
shaft is flatted behind the centrifugal switch, close 
to the motor end bell. The open end wrench can be 
inserted down into the shaft from behind the motor 
overload. Unscrew the impeller from the motor shaft 
by grasping the OD of the impeller with a gloved hand 
and rotating counter clockwise. This will reveal the 
mechanical shaft seal. This seal can then be removed 
from the motor shaft for inspection. The motor bracket 
can be removed from the motor by removing the 4 
bolts on the backside of the motor bracket. To remove 
the ceramic shaft seal, press gently from the backside 
on the ceramic and it will fall out easily. Inspect, clean 
or replace parts as needed.

C. pump Assembly

Reassemble unit by first pressing the ceramic seal into 
the seal plate. Use rubbing alcohol as a lubricant. Do 
not use an oil, vaseline or grease as this will damage 
the sealing surfaces of the shaft seal during operation. 
Next, install the motor bracket onto the motor using 
the four bolts. Tighten the bolts in a diagonal pattern 
to insure a proper fit. Place the shaft seal on the motor 
shaft and then install the impeller and eye-seal. The 
diffuser is positioned by three bolts that can only be 
installed when the diffuser is oriented properly (Figure 
9). Position the diaphragm on the diffuser suction eye. 
(as shown in Figure 9). The grommet will slide over the 
diffuser eye on top of the diaphragm. Lift the motor 
assembly up into the pump case and attach it using 
the 4 bolts. When seating the pump case against the 
motor bracket, the diaphragm should be captivated 
between them around the entire perimeter. This allows 
the diaphragm to serve as a water seal between the 
two cast iron parts. If the diaphragm is not positioned 
correctly the unit will leak once the case is filled with 
water. Tighten all bolts to 185 in-lbs in a diagonal 
pattern to insure proper seating of all components.

Drain Plug

Priming Port

Diffuser

Motor 

Bracket

Diffuser Bolt

Diffuser Bolt

Grommet

Diaphragm

Figure 8

Figure 9