How To Repair Electric Motor Pdf

This article describes a c electrical motor troubleshooting.

How to repair electric motor pdf.

If the internal windings burn out your ac motor needs to be checked out professionally. This motor is a baldor cl3509 1 hp 3450 rpm electric motor. Electric motor test repair guide. Fixing a dented fan shroud on the back of an electric motor.

Begin to check the bearings of the motor. Many electric motor failures are caused by bearing failures. Bearings are located at both ends of the motor which are sometimes called bell housings or end bells. The bearings allow the shaft or rotor assembly to turn freely and smoothly in the frame.

In this video i show how to test dismantle repair and reassemble a small ac motor patreon link. Both mechanical and electrical test equipment and tools are discussed with detailed how to. All electric motors contain copper windings on the armature and magnets that are fixed to the outer casing. Capacitor start electric motors use a starting coil and a capacitor to create an advancing magnetic field in the stator outer frame of the motor with its coils.

For maximum effectiveness this manual should be used as a supplement to any ongoing on the job training in the ima electrical repair shop. The magnets repel the electrical energy and force the armature in the motor to rotate. Electricity is passed to the windings in the armature via carbon brushes. This is part 3 of a ser.

Ac motors are generally reliable and last a long time before needing to be replaced. The only user serviceable parts on an ac motor are the brushes and the bearings. Here we provide an electric motor diagnostic table a troubleshooting guide that helps diagnose and repair most electric motor problems for motors found on hvac equipment in buildings such as air conditioners furnace or air handler blower fans oil burner motors well pumps and condensate return. This electric motor repair shop procedures manual is for use by ima personnel engaged in electric motor repair.

You can service wiring connections bearings and. However it generally involves. Electric motors are relatively simple mechanical devices but rewinding them isn t in fact it s one project that s usually best left to the professionals.