Jandy® Stealth - Home - Swimming Pool Parts Filters Pumps ...

Page 162. Replace the motor shaft cover by inserting thecover tabs into the slots and rotating the cover90º clockwise.3. Replace the diffuser over impeller using care toinsert alignment pins into the correct holes. Themolded-in arrow must point toward the handleof the backplate.4. Replace the two small Phillips head screws.Tighten the screws to draw the diffuser againstthe motor backplate.5. Make sure the o-ring, o-ring groove, and o-ringseal area are clean and free of debris, whichcould cause a leak. If grease is used to retainthe o-ring, it must be silicone based. Do not usepetroleum-based grease, which will destroy theo-ring.6. Slide the diffuser into the mating hole in thepump body. While supporting the motor, starttwo screws on opposite sides. (This will holdthe motor in position while you start the othersix (6) screws).7. Tighten the screws lightly in a crossing “X”pattern using a 9/16" wrench starting with theinner (middle) four (4) then the outer (top andbottom) four (4) to draw the backplate to thebody in a even manner. Once all the screwsare snug torque in the same order to 18 footpounds.8. If the pump is located above water level of thepool, remove the lid and fill the basket withwater before starting the pump.NOTE Prior to replacing the lid, check for debris aroundthe lid o-ring seat, as this will cause air leaks intothe system.9. Hand-tighten the lid to make an air tight seal.Do not use any tools to tighten the lid.10. Open the pressure release valve on the filter, andmake sure it is clean and ready for operation.11. Switch on the circuit breaker to the pumpmotor.12. Turn on the pump and check the system fornormal operation.13. Once all the air has left the filter, close thepressure release valve.6.2.4 Mechanical Seal ReplacementNOTE This is a two part replacement process. Themechanical seal must be replaced as a set.NOTE Refer to Figure 6 for an illustration of the locationof the mechanical seal and impeller.WARNINGDo not damage the ceramic or carbon surfacesof the seals. If surfaces are damaged, leaks willoccur.1. To access the mechanical seal, follow steps 1through 8 of Section 6.2.2, Impeller Removal.2. Remove the carbon face seal half from theimpeller (see Figure 8). This is a spring loadedseal. Grasp the portion of the seal closest tothe impeller body and pull the seal off using atwisting motion.Self Sealing LeftHanded ScrewImpellerDiffuserScrews andWashers (2)BackplateFigure 7.Mechanical SealDiffuser O-ringBackplate, Impeller, Diffuser, andMechanical Seal Exploded View• Ceramic Face Seal• Backplate SealFigure 8.• Carbon Face/ Springside of seal• Impeller side of themechanical sealReplace the Mechanical Seal