Article: Unplug the motor from its power source. Power should not be running into the motor, or else you're in for a shock. Unscrew any bolts holding the motor in place if there are any. You can test the motor with a multimeter if you think it may have an electrical charge. Take a look at the motor's exterior to locate the wires that connect it to other components in an electrical system. They are often bright red, black, or blue, so they should be easy to spot. Twist the wires with a wrench to free them from the terminals. Note the wire locations so you can reconnect them later. You may want to take pictures to help with this. Find the gear shaft, which is a metal rod sticking out from 1 of the motor's ends. The pulley is the small piece that looks like a wheel on the end of the shaft. Use the gear puller's claws to grip the pulley, then pull it off the shaft. You can purchase a gear puller at most hardware stores. At both ends of the motor, you will notice circular pieces of casing, often made with PVC. These end bells need to be repositioned precisely later, and marking them now makes that much easier. Hold the center punch to the exterior of each end bell and tap it with a hammer to create a small mark. Put 1 mark on the end bell underneath the pulley, then put 2 marks on the opposite end bell. Your motor may also have long metal tubes called housings. These are located behind the end bells. Mark them the same way. Each bell is likely to have 8 bolts. Look for a set of bolts in the center, then another set around the outside rim. You will need to turn these counterclockwise with the socket wrench in order to loosen and remove them. Depending on your motor, you may need a box wrench or a screwdriver instead. A soft-faced hammer has a plastic, wooden, or lead head. Wedge the screwdriver between the bell and the motor. It should be positioned on the side closest to the motor. Then, use the hammer to strike the screwdriver until you are able to pull the bell off the motor. Remember to get both bells, including the one on the side opposite of the pulley. The starter switch will be on the pulley end of the motor. It will be behind the end bell and housing. You will see a lot of copper wires connecting. Carefully pull off the metal piece holding the wires, taking care not to break any of the wires. If your motor does not have a starter switch, it will have a brush housing, which is a horizontal tube. Look for the massive bundle of copper wires inside it. Note the position and number of any shims. The shims are flat metal pieces that look like 2-pronged forks.
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Disconnect the motor and remove it from its mounting. Disconnect the wires from the terminals. Remove the pulley with a gear puller. Mark the end bells with a center punch. Unscrew the bolts from end bells using a socket wrench. Tap the bells loose with a soft-faced hammer and screwdriver. Remove the motor's ends and starter switch.