Maintenance; Pump Disassembly - Pentair BERKELEY BPD Serie Notice D'utilisation

Maintenance

Figure 18 – Disconnect Power
Figure 19 – Slide Motor Back
Figure 20 – Remove Diffuser
To avoid electrical
shock hazard, use
insulated-handle
screwdriver to short
capacitor terminals
as shown.
Figure 21 – Hold Shaft
Figure 22 – Remove Seal plate
MAINTENANCE
Pump and piping need not be disconnected to repair or replace motor or
seal (see Figure 19). If motor is replaced, replace the shaft seal. 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.
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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 19).
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3. Remove pump base mounting bolts. Motor assembly and back half of
pump can now be pulled away from pump front half (Figure 19).
CAREFULLY remove O-ring.
CLEANING/REPLACING IMPELLER
NOTICE: First, follow instructions under "Pump Dis assembly".
1. Remove four screws fastening diffuser to seal plate; remove diffuser (see
Figure 20). Exposed impeller can now be cleaned.
2. If impeller must be replaced, loosen two machine screws and remove
motor canopy (see Figure 21).
3.
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capacitor, hold insulated handle screwdriver BY THE HANDLE and
short capacitor terminals together (see Figure 21). Do not touch metal
screwdriver blade or capacitor terminals. If in doubt, consult a qualified
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
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impeller.
6. To reinstall, reverse steps 1 through 5.
7. See directions under "Pump Reassembly," Page 12.
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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 22). Back half of pump body will slide
off shaft, bringing seal with it.
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Capacitor voltage may be hazardous. To discharge
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