Motor Shaft Replacement Instructions For TP Motors

1. Remove the firewall mount from the motor. The set screw requires a 1.5mm allen wrench. Sometimes the firewall mount comes off easily and sometimes it can be quite difficult.

2. Remove the C-clip that retains the shaft. Also remove the washer under the C-clip. Removing this little washer can be the most difficult part of disassembly, as it tends to get hung up in the C-clip groove.

3. Pull the bell housing off the stator. Do this by grasping the motor tube with a pliers where the firewall mount was and pulling on the motor bell with your fingers. There will be resistance from the magnets, so it takes a little effort. The front bearing sometimes comes off with the shaft. If it does, remove the bearing from the shaft and replace it in the stator tube.

4. At this point the motor is essentially in two pieces - you have the stator with the motor windings, and the motor bell (with the magnets) attached to the shaft. The new style motor has a bell flange with two set screws. Simply loosen the two set screws (be sure to turn the set screws out quite a bit as the shaft has a flat notch under one of them) and drive the shaft out of the flange. There is usually no need to remove the flange from the bell housing.

5. Insert the new shaft and tighten the two set screws, being certain to line up the flat notch of the shaft with one of the set screws.

6. Now put the motor bell with the new shaft back on the stator and replace the washer and C-clip.

Note: The old style motor with the black nut on the front of the bell comes apart differently. You must remove the black nut and take the motor bell off the flange. Discard the old flange and shaft. You need to have a new style flange to put on the motor bell in order to use the shafts in this listing. The new flange mounts on the motor bell with the nut on the inside of the bell.