Jandy FloPro Diffuser with O-Ring and Hardware Kit | R0479702

Impeller/Diffuser and Hardware Replacement

1.Refer to Figure 2 and the associated parts list to identify the parts included in each replacement kit.

2. Using a No. 1 Phillips screwdriver, remove the two (2) screws attaching the diffuser to the backplate. Carefully remove the diffuser from the backplate. See Figure 3.

3. Remove any debris from the inlet and outlet of the impeller.

4. Remove the motor shaft cover on the back of the motor by twisting the hex-head screw with an adjustable wrench. The motor shaft will be exposed.

5. Hold the exposed motor shaft with a ½" wrench while removing the impeller center screw. Use a No. 2 Phillips screwdriver. Turn the left-handthreaded screw clockwise to loosen it.

6. While holding the motor shaft with a ½" wrench, thread the new impeller onto the motor shaft. Hand-tighten the impeller until it is secure.

7. Using a No. 2 Phillips screwdriver, tighten the impeller’s center screw into the center of the impeller. Turn the left-hand-threaded screw counter-clockwise to tighten it. Do not overtighten.

8. Replace the motor shaft cover by inserting the cover tabs into the slots and rotating the cover 90º clockwise.

9. Install the new diffuser over the impeller. Make sure you insert the alignment pins into the correct holes. The molded-in arrow must align with the molded-in arrow on the backplate. See Figure 3.

10. Install the two (2) Phillips-head screws. Tighten the screws to draw the diffuser against the backplate.

11. To avoid a leak, make sure the diffuser o-rings, o-ring grooves, and o-ring seal area are clean and free of debris. If grease is used to retain the o-rings, it must be silicone based. Do not use petroleum-based grease, because it will destroy the o-rings.

12. If you are not installing another replacement kit, skip to Section 6, Pump Assembly.