How To Repair Electric Motor Pdf

This is part 3 of a ser.

How to repair electric motor pdf.

This article describes a c electrical motor troubleshooting. If the internal windings burn out your ac motor needs to be checked out professionally. 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. Ac motors are generally reliable and last a long time before needing to be replaced.

Given the sheer number of different motors and winding patterns the rewinding process can vary greatly. This advancing magnetic field gives the rotor something to chase causing the rotor to spin. Begin to check the bearings of the motor. Both mechanical and electrical test equipment and tools are discussed with detailed how to.

This electric motor repair shop procedures manual is for use by ima personnel engaged in electric motor repair. Many electric motor failures are caused by bearing failures. You can service wiring connections bearings and. Electricity is passed to the windings in the armature via carbon brushes.

The only user serviceable parts on an ac motor are the brushes and the bearings. 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. I cover the symptoms and how to fix three of the most common motor problems for dc and ac motors found in power tools and appliances. Fixing a dented fan shroud on the back of an electric motor.

This motor is a baldor cl3509 1 hp 3450 rpm electric motor. For maximum effectiveness this manual should be used as a supplement to any ongoing on the job training in the ima electrical repair shop. In this video i show how to test dismantle repair and reassemble a small ac motor patreon link. The bearings allow the shaft or rotor assembly to turn freely and smoothly in the frame.

Electric motor test repair guide. 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. However it generally involves.