Clean exposed dirty gears and apply light machine oil. Do not oil
the armature, or fiber or nylon gears. If the motor is damaged, you can
get it replaced by contacting: Multi Products Company, Inc.
5301 21st Street
Racine, WI 53406.
Give them the spec number stamped on the frame and they will make a new one.
Or if you send the motor to them they will repair it. Be careful when
looking for the spec number. Some motors have multiple spec numbers, one on
each side, and only one of the numbers means anything to the Multi Products