Looking to replace my elec. motor on my hayward pump # sp3605x7. ser# 640c30. not sure how you..remove the motor from the pump.did not see a set screw? thank you steve 978-606-9706.
Turn off the electric first. Then just remove the 4-6 bolts and separate the back half from the front. The motor with seal plate, impeller, and diffuser can all be pulled back away from the rest of the pump. Now disconnect the electrical from the motor and your can pull the motor with the seal plate, diffuser, and impeller all the way out and work on it. You need to remove the diffuser (plastic housing that goes around the impeller) sometimes this is held by a series of 3 to 6 small screws, other times it just slips over the impeller. To remove the impeller you need to lock the motor and unscrew impeller. Depending on the motor, you remove a cap in the middle of the tail piece and hold with a wrench, or remove a cap that covers the whole end and grab the shaft with a wrench (usually 7/16") by sliding it under one of the components (not sure exact part off top of my head have to look at it) and then turning impeller. If the impeller has a bolt or screw in the middle remove that first. It should be reverse thread so make sure you don't turn the wrong way and break or strip. If there is no screw, or after you've removed it, just spin the impeller off (it should be counter clockwise standard thread). If you can't do it by hand and assuming you don't have an impeller wrench, be very careful and use a large pliers, pipe wrench, or strap wrench to loosen it. After that you unbolt the motor from the seal plate, pull the seal plate away from motor (this removes half the seal), and then pop the other half of the seal from the seal plate. Make sure replace the shaft seal, and use a tiny bit of pool lube on the rubber parts when installing, but keep the white and black ceramic surfaces 100% free of any dirt, grease, etc while working with them. The instructions above a based on a very similar model and may vary slightly, let me know if something doesn't look/sound right and I'll clarify. Good Luck
Sep 24, 2010 |
Hayward Single Speed 34 Hp Swimming Pool...