MAINTENANCE
Pump and piping need not be disconnected to repair or re-
place motor or seal (see Figure 16). If motor is replaced, re-
place the shaft seal (Key No. 6, Page 11). Keep one on hand
for future use.
Be sure to prime pump before starting.
NOTICE:
Check motor label for lubrication instructions.
The mechanical shaft seal in the pump is water lubricated
and self-adjusting.
NOTICE:
Drain pump when disconnecting from service or
when it might freeze.
PUMP DISASSEMBLY
1. Disconnect power to motor.
NOTICE:
Mark wires for correct assembly.
2. Remove clamp (see Figure 16).
3. Remove pump base mounting bolts. Motor assembly and
back half of pump can now be pulled away from pump
front half (Figure 16). CAREFULLY remove O-Ring.
CLEANING/REPLACING IMPELLER
NOTICE:
First, follow instructions under “Pump Disas-
sembly”.
1. Remove four screws fastening diffuser to seal plate; re-
move diffuser (see Figure 17). Exposed impeller can now
be cleaned.
2. If impeller must be replaced, loosen two machine screws
and remove motor canopy (see Figure 18).
3.
Capacitor voltage may be hazardous.
To discharge capacitor, hold insulated handle screw-
driver
BY THE HANDLE
and short capacitor terminals
together (see Figure 18). Do not touch metal screwdriver
blade or capacitor terminals. If in doubt, consult a quali-
fied electrician.
4. Unscrew capacitor clamp and remove capacitor. Do not
disconnect capacitor wires to motor.
5. Slide 7/16” open end wrench in behind spring loaded
switch on motor end of shaft; hold motor shaft with
wrench on shaft flats and unscrew impeller by turning
counterclockwise when looking into eye of impeller.
6. To reinstall, reverse steps 1 through 5.
7. See directions under “Pump Reassembly,” Page 10.
REMOVING OLD SEAL
1. Follow instructions under “Pump Disassembly”.
2. Follow steps 2 through 5 under “Cleaning/Replacing
Impeller.
3. Unscrew four nuts holding pump back half to motor.
Remove rotating half of seal by placing two screwdrivers
under back half of pump body and carefully prying up
(Figure 19). Back half of pump body will slide off shaft,
bringing seal with it.
NOTICE:
Be sure you do not scratch or mar shaft; if shaft is
marred, it must be dressed smooth with fine emery or cro-
cus cloth before installing new seal. DO NOT reduce shaft
diameter!
8
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Figure 18 – Hold Shaft
To avoid electrical
shock hazard, use
insulated-handle
screwdriver to short
capacitor terminals
as shown.
Figure 16 – Slide Motor Back
Figure 15 – Disconnect Power
Figure 17 – Remove Diffuser
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Figure 19 – Remove Seal plate
