The reverse rotation of the angle grinder is caused by the polarity exchange of two wires in the armature winding of the motor, resulting in the motor reversing. To adjust the angle grinder to forward rotation, it is necessary to change the connection method of the wires in the motor armature winding to restore its normal polarity. The specific steps are as follows:
- Disconnect the power cord of the angle grinder to ensure safety.
- Open the casing of the angle grinder, find the armature winding of the motor, and check the connection method of the wires.
- If the wire connection method is found to be incorrect, the order of wire connection needs to be changed. Specifically, connect the electrode cable to the opposite polarity terminal on the armature winding.
After completing the wire connection, turn on the power of the angle grinder again, start the motor, and check if it has resumed normal rotation.
If none of the above methods can solve the problem, it may be due to a malfunction in the motor itself, and professional personnel need to be sought for repair or replacement of the motor. Be sure to pay attention to safety during operation to avoid accidents.
