Need instructions on how to replace seals
ok, I will try my best. First, make sure power is off to the pump. Then, remove the six bolts and nuts on the front (wet) end of the pump and expose the impeller. On the back of the motor, you will need to remove the small dust cap in the center. Underneath that dust cap should be the shaft that is slotted. You will need a large screwdriver to hold it from turning as you remove the impeller by turning it counter-clockwise. Once the impeller is off, remove the four bolts holding the seal-plate onto the motor. Once you have the seal plate off, press the old seal out by pushing from behind with a flat tip screwdriver. Once the (ceramic part) seal is out, clean the area where the seal seats very thoroughly and apply some silicone lubricant or even Vaseline to for a nice uniform coat to the area, don't leave any of it dry but don't glob it on either. Next, pull the carbon/spring part of the seal off of the impeller by twisting pulling it at the same time. Make sure all of the seal comes off including the rubber washer/o-ring. Apply a very small amount of lube to the impeller shaft where the new seal will go. Install the new seal onto the impeller, be careful not to touch the carbon face of the seal if you can help it. Slide the seal all the way onto the shaft until it bottoms out. Next, install the ceramic part of the seal into the seal plate, be careful not to touch the ceramic surface. Press it into place using some paper of cardboard from the box the new seal came in. Make sure it seats all the way down, inspect it from the back to make sure the seal is completely seated. Install the seal plate back on and torque the four bolts onto the motor. Thread the impeller onto the shaft until it bottoms out, hold the shaft and tighten the impeller lightly, no need to crank on it, snug is good. Check and lube all your o-rings and install the wet end back onto the seal plate. Reinstall the motor shaft dust cover and you should be back in business. Be sure to fill the pump with water before turning it on. You can usually do this by starting your filter pump first.
Here is an exploded view of your booster pump.
Sep 28, 2009 |
Polaris Pb4 - 60 Booster Pump