on just about every electric motor Ive ever torn apart you just remove the 4 long bolts holding the back on, and pull the back cover off, then the motor shaft slips out. be sure to mark the motor housing and the cover so that when you go to put it back together you can line it up as it was before.
How do you remove bearings from a motor shaft?
(1) Cold disassembly
When we remove a smaller bearing, use a suitable punch to gently tap the side of the bearing ring to remove it from the shaft. A better method is to use a mechanical puller (Figure 1). Pulling acts on the inner ring or adjacent parts.
How do you remove gear from shaft?
The gear will come off easily if you heat it. You will need a small butane torch (you can buy one on Ebay for five bucks or so). Get the gear glowing hot, and then use screwdriver or something similar to push it off the shaft. Then heat it again before sliding it onto the shaft of the new motor.
How do I know if my electric motor bearings are bad?
Check for mechanical binding or seized bearings. If you feel resistance or hear rasping or scraping sounds when you rotate the shaft by hand, the bearings may be worn or seized. If the motor has sleeve bearings, you may be able to lubricate the sleeve bearings with oil.
How do you remove a pulley without a puller?
There is a way to do it. You put a wrench on the pulley bolt and block the other end against the floor or the frame. Then you use the starter motor to turn the engine (DO NOT START IT, JUST TURN IT) for at most one or two revolutions of the crank. Just enough to break the bolt loose.