Pump Disassembly - aermotor SPCA Serie Manual De Instalación Y Funcionamiento

Maintenance
Pump and piping need not be disconnected to repair or
replace motor or seal (see Figure 14). If motor is
replaced, replace the shaft seal (Key No. 7, Page 12).
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.
ON
OFF
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Figure 13 – Disconnect Power
2. Remove capscrews holding seal plate to pump
body. Motor assembly and seal plate can now be
pulled away from pump body (Figure 14). CARE-
FULLY remove gasket.
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Figure 14 – Slide Motor Back
CLEANING/REPLACING IMPELLER
NOTICE: First, follow instructions under "Pump Dis-
assembly".
1. Remove screws fastening diffuser to seal plate; re-
move diffuser (see Figure 15). Exposed impeller can
now be cleaned.
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Figure 15 – Remove Diffuser
2. If impeller must be replaced, loosen two machine
screws and remove motor canopy (see Figure 16).
Figure 16 – Hold Shaft
3. Capacitor voltage may be hazardous.
To discharge capacitor, hold insulated handle
screwdriver BY THE HANDLE and short capacitor
terminals together (see Figure 16). 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 screw (if used) by turning clockwise (left
hand thread) when looking into eye of impeller.
6. Unscrew impeller while holding shaft by turning
counterclockwise while looking into eye of impeller.
7. To reinstall, reverse steps 1 through 6.
8. See directions under "Pump Reassembly," Page 10.
8
To avoid electrical
shock hazard, use
insulated-handle
screwdriver to short
capacitor terminals
as shown.
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