cheap 120v ac motors maintenance
Maintenance in the line
1. The cheap 120v ac motors should be kept clean at all times, and no debris is allowed to enter the motor; the air inlet and outlet should be kept clear.
2. Monitor the power supply voltage, frequency and load current of the motor with the meter. The power supply voltage and frequency must conform to the motor nameplate data. The motor load current must not exceed the specified value on the nameplate. Otherwise, the cause should be identified and measures should be taken.
3. Take necessary measures to detect the temperature rise of each part of the motor.
4. For the wound-phase rotor motor, always pay attention to the contact pressure, wear and spark between the brush and the collector ring. When the motor stops, the switch in the stator circuit should be disconnected, then the brush lift mechanism is pulled to the starting position, and the short circuit device is disconnected.
5. Regular maintenance after the motor is running, generally divided into minor repairs and overhauls. The minor repairs are generally overhauled. The motor starting equipment and the whole are not disassembled. In the first quarter, the overhaul will remove all the components of the transmission and the motor, and the parts will be thoroughly inspected and cleaned. Usually once a year.
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