19
Removal and Replacement of the Impeller and/or Mechanical Seal - continued
9. Using water with a small amount of dish soap, brush the impeller shaft for ease of assembly.
10. With the carbon side up, push the mechanical onto the impeller shaft and wipe carbon surface with
a clean cloth.
CAUTION: Do not use grease or lube to install seal. It will damage the seal and cause failure.
11. The ceramic side of the seal can be pushed out from the rear of the seal housing. Please note its
position before removing.
12. Using water only, wet the ceramic side of the seal and using your thumbs push into the seal housing.
Clean surface with a clean cloth.
13. Wipe the motor shaft of all debris. Re-install the seal housing and apply a single drop of Loc-tite to
the motor shaft threads.
14. Install impeller by spinning it clockwise onto the motor shaft. Continue to turn clockwise until the
carbon and ceramic sides make contact and the seal spring slightly compresses.
15. Install the diffuser by aligning the diffuser pin with the holes in the seal housing and pressing together.
16. Make sure the diffuser and casing o-rings are in place and free of debris. Slide the motor flange into
the casing.
17. Tighten the eight screws using a cross pattern from side to side and top to bottom.
CAUTION: Do not over-tighten or you will strip the casing threads.
Motor Replacement
WARNING: The pump must serviced by a professional service technician qualified in pool/spa
installation. The following procedures must be followed exactly. Improper installation and/or
operation can create dangerous electrical hazards, which can cause high voltage to run through
the electrical system. This can cause property damage, serious personal injury, and/or death.
Improper installation and/or operation will void the warranty.
1. Disconnect the wiring from the side of the motor.
(Refer to the Electrical Installation on page 10)
2. Remove the eight screws holding the flange to the pump casing.
3. Slide the motor and flange from the casing.
4. Remove the diffuser by gently pulling the diffuser horizontally until the pins are clear from the seal
housing.
5. Place a flat heat screwdriver through the center hole of the fan cover and into the screwdriver slot on
the motor shaft.
6. While holding the motor shaft, turn the impeller counter-clockwise.
