When the speed of aluminum gold motor motor is slow and weak after power on, most of the capacitor start-up motors are lack of capacitor capacity, serious leakage or low power supply voltage; in addition, if there are serious defects and broken bars in the aluminum bar of squirrel cage rotor, especially the washing machine motor is often started and runs alternately, the large induced current of rotor aluminum bar will easily break the aluminum bar of rotor It causes slow and weak operation. When it is found that there are cracks in the aluminum bar of the aluminum gold motor, a small hole can be drilled between the cracks with a hand electric drill, and the corresponding aluminum wire rod is inserted into the hole, and then it is knocked flat and riveted. Finally, the steel file and sandpaper are used to polish and smooth it. If the fracture surface of aluminum bar of aluminum gold motor is large, the method of aluminum wire gas welding can be used to repair if conditions permit.