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MAINTENANCE
The pump and piping do not need to be disconnected to repair
or replace the motor or seal.
If motor is replaced, a new shaft seal must be installed. Keep
an extra shaft seal on hand for future needs.
Check motor label for lubrication instructions. The
mechanical shaft seal in the pump is water lubricated and
self-adjusting.
PUMP DISASSEMBLY
Drain pump when disconnecting from service or when it might
freeze.
1.
Disconnect power to motor.
2.
Mark wires for correct assembly.
3.
Release all water pressure from system.
4.
Remove drain plug and drain pump.
5.
Remove capscrews holding seal plate to pump body.
Motor assembly and seal plate can now be pulled away
from pump body (Figure 14).
6.
CARE FULLY remove gasket.
Figure 14 – Slide Motor Back
CLEANING/REPLACING IMPELLER
1.
Follow instructions under "Pump Dis assembly".
2.
Remove screws fastening the diffuser to the seal plate.
Figure 15 – Remove Diffuser
8
3.
Remove diffuser (Figure 15). The exposed impeller can
now be cleaned.
4.
If impeller must be replaced, loosen two machine screws
and remove motor canopy (Figure 16).
5.
WARNING
discharge capacitor, hold insulated handle screwdriver
BY THE HANDLE and short capacitor terminals together
(Figure 16). Do not touch metal screwdriver blade or
capacitor terminals. If in doubt, consult a qualified
electrician.
6.
Unscrew capacitor clamp and remove capacitor. Do not
disconnect capacitor wires to motor.
7.
Slide a 7/16" open-end wrench behind the spring-
loaded switch on the motor end of the shaft.
Hold motor shaft with wrench on shaft flats and unscrew
impeller screw (if used) by turning clockwise (left hand
thread) when looking into eye of impeller.
8.
Unscrew impeller while holding shaft by turning
counterclockwise while looking into eye of impeller.
9.
To reinstall, reverse steps 1 through 6 and follow
3027 0997
directions in the "Pump Reassembly" section below.
REMOVING OLD SEAL
1.
Follow instructions under "Pump Disassembly".
2.
Follow steps 2 through 5 under "Cleaning/Replacing
Impeller".
3028 0997
To avoid electrical
shock hazard, use
insulated-handle
screwdriver to short
capacitor terminals
as shown.
Figure 16 – Hold Shaft
Capacitor voltage may be hazardous. To
Figure 17 – Remove Seal plate
739 0993
3029 0997
S30 (11-21-19)
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