Hayward TriStar XL HCP3000 Series Variable Speed Pump - Owners Manual - Page 23

Shaft Seal Change Instructions When servicing electrical equipment, basic safety precautions should always be observed including the following. Failure to follow instructions may result in injury. ! WARNING - To reduce risk of injury, do not permit children to use this product. • Disconnect all electrical power service to pump before beginning shaft seal replacement. • Only qualified personnel should attempt rotary seal replacement. Contact your local authorized Hayward Dealer or service center if you have any questions. • Refer to page 23 for pump component locations. Exercise extreme care in handling both the rotating and the stationary sections of the two-part replacement seal. Foreign matter or improper handling will easily scratch the graphite and ceramic sealing surfaces. Removing the Motor Assembly 1. Remove the six (6) 5/16" x 2" hex head bolts (item #20) which hold the motor assembly to the pump housing (item #9), using a ½" wrench or socket. 2. Slide the motor assembly out of the pump housing (item #9), exposing diffuser (item #12). Remove the four (4) diffuser screws (item #11) and pull the diffuser off of the seal plate (item #18) to expose the impeller (item #15). Removing the Impeller 3. To prevent motor shaft from turning, insert a 5/16" allen wrench into the end of the motor shaft through the center hole in the motor end cover/canopy. 4. Rotate the impeller (item #15) counterclockwise and remove. The spring portion of the seal assembly (item #16) is now exposed. Note carefully the position of the spring seal, and remove it. NOTE - Replace motor cover to protect delicate motor parts. Removing the Ceramic Seat 5. Remove the seal plate (item #18) from the motor by removing the four (4) 3/8" x 1" hex head bolts (item #21) that secure it to the motor, using a 1/2" wrench or socket. 6. Press the ceramic seat with rubber cup out of the seal plate. If tight, use a small screwdriver to tap seal out. See Figure below. STOP - Clean all recesses & parts to be reassembled. Inspect gaskets & replace if necessary. Seal Installation 7. Clean and lightly lubricate the motor shaft and seal recess in the seal plate (item #18) with a dilute solution of non-granulated liquid-type soap. Gently wipe the polished surface of the ceramic seal with a clean, soft, cotton cloth. Lubricate the rubber cup on the ceramic seat and press it firmly and evenly into the recess of the seal plate (item #18) with the polished side of the ceramic facing out. 8. Assemble the motor to the seal plate (item #18) with the four (4) 3/8" x 1" hex head bolts (item #21). Torque bolts to 95-105 in-lbs. 9. Gently wipe the black, polished surface of the spring seal assembly with a clean, soft, cotton cloth. 10. Press the spring seal assembly (item #16) onto the motor shaft - black polished surface facing toward the polished surface of the ceramic seat. See Figure below. 22 USE ONLY HAYWARD GENUINE REPLACEMENT PARTS