8
PUMP SERVICE
Pump should only be serviced by qualified personnel.
Be sure to prime pump (Page 7) and start main pool pump before starting.
Before removing trap cover:
1. STOP PUMP before proceeding.
2. CLOSE GATE VALVES in suction and discharge pipes.
3. RELEASE ALL PRESSURE from pump and piping system.
4. NEVER tighten or loosen clamp while pump is operating!
To avoid dangerous or fatal electrical shock hazard, turn OFF power
to motor before working on pump or motor.
Aside from lubricating trap cover O-Ring, no lubrication or regular mainte-
nance is needed beyond reasonable care and periodic cleaning.
If shaft seal is worn or damaged, repair as follows:
Pump Disassembly/Removing Old Seal:
Disconnect power to pump motor.
Be sure
gate valves on suction and return piping are closed before starting
work.
Release all pressure before starting work.
1. Drain pump by removing drain plugs on bottom of pump body and trap
body.
2. Remove clamp holding pump halves together (Figure 4).
3. Remove pump base mounting bolts. Motor and seal plate assembly can
now be pulled away from pump body.
4. Remove five screws and washers holding diffuser to seal plate. Remove
diffuser (Figure 5).
5. If impeller must be replaced, loosen two machine screws and remove
motor canopy (see Figure 6).
6.
Capacitor voltage may be hazardous.
To discharge capaci-
tor, hold insulated handle screwdriver
BY THE HANDLE
and short capaci-
tor terminals together (see Figure 6). Do not touch metal screwdriver
blade or capacitor terminals. If in doubt, consult a qualified electrician.
7. Unscrew capacitor clamp and remove capacitor. Do not disconnect
capacitor wires to motor.
8. 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.
9. 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 7, Page 9). 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 crocus cloth before installing
new seal. DO NOT reduce shaft diameter!
10. Place pump body face down on flat surface and tap out stationary half of
seal (see Figure 8, Page 9).
1193 0794
FIGURE 4
FIGURE 5
FIGURE 6
7
To avoid electrical
shock hazard, use
insulated-handle
screwdriver to short
capacitor terminals
as shown.
