Motor very hard to turn. Bearing at end with power cord turns freely. Bearing against the pump hardly turns. How do you remove the pump and get to the bearing to replace? Should the pump be replaces as...
to answer the question "should the pump be replaced as well?)
there are a few things that can answer that question for us. What is the condition of the existing pump? How old is it? Can the impeller even be removed from the shaft without breaking it?
Basically to change the motor bearings you must remove the 10-16 screws on the wet end.
Remove the cap you just unscrewed.
remove the small 1" round shaft cap at the rear of the MOTOR. (on the electrical end) this should come out with just a flathead screwdriver. (if it bends a little its no big deal.)
Lock onto the shaft end we just uncovered with a LARGE flathead screwdriver.
While locked onto the shaft, turn the impeller counterclockwise until removed.
Note: some impellers have a set screw in the center of the impeller.If you have one, it is reverse thread and must be removed by turning clockwise.)
If you are unable to get the impeller off of the shaft, you might as well buy a whole new pump. These pumps are a few hundred dollars, but if you have to purchase a new motor, a new impeller, and a new shaft seal at the very least, then the cost is right up there with a new pump.
If you can remove the impeller, keep reading.
Next remove the (4) - 1/4" hex through bolts located on the motor at the electrical end.
With the impeller removed and the through bolts removed, the wet end should now seperate from the motor.
To remove the bearings, we must seperate the front faceplate from the motor housing by taking a large flathead screwdriver to the small flat notch in between the plate and the motor housing. Pry in small even incriments all the way around the plate to remove this safely.
Once this is done, the bearing can be removed. For this we need a good quality bearing puller (these can be expensive and if you dont own one this is another reason to buy a new pump.)
Lock the 2 arms of the bearing puller around the outside of the bearing, and lock the center pin on the shaft and turn clockwise to remove.
When installing the new bearing, use a piece of 3/4" metal electrical conduit about 6-8 inches inlegth.
Place the bearing on the shaft and fit the electrical conduit on top of it, making sure to only apply pressure to the RACE of the bearing (the inside track) tap lightly until the new bearing is in place.
Once this is done, reverse these instructions to reassemble.
Dec 05, 2010 |
Waterway Executive 56 Spa Pump 3hp 2" 2spd...