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How to Rebuild an RC Electric Motor

Electric motors require regular maintenance to minimize wear and ensure optimum performance. Keeping your motor well-lubricated and clean will bring out the best it has to offer. Learning how to rebuild your electric motor will enable you to perform routine services on your device, while also providing a firm understanding of how the motor functions as a whole. Rebuilding a motor will provide you with a comprehensive knowledge of the device's physical parts -- a necessity when it's time to diagnose a malfunction or make an effective repair.

Things You'll Need

Motor Can
End-Bell (fitted with motor brushes)
Two screws
screwdriver
solder
solder iron
two sections of wire

Instructions

- 1
  Insert the armature into the motor can. The armature is the moving part of the motor, it is composed of a long metal shaft, fixed with magnets and a long coiling wire. Slide it into the back-end of the motor can, which is the cylindrical metal body that houses the armature.
- 2
  Reinstall the end-bell, which is the plastic back-side of the motor. The shaft of the armature should slide into the center of the end-bell, through a bearing or bushing. Install the two screws that attach the end-bell to the motor can.
- 3
  Solder a positive and negative lead to the motor's terminals. There are two metal tabs located on the end-bell, these are how power from the battery reaches the motor.
- 4
  Test that the motor is fully functional by either manually spinning the shaft, or applying a reduced amount of power to the device using a low-capacity battery.

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