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Robert SmithAug 10, 2025
What to do if the mandrel doesn’t rotate on my Butler Tyre Changer?
- BboydjoshuaAug 10, 2025
If the mandrel doesn’t rotate, it might be due to an inverter overload, undervoltage, or overvoltage alarm. Try shortening any extension cables or increasing the conductor section, then disconnect and reconnect the machine. Lift the motor pedal and wait for the automatic reset. Alternatively, it could be an overtemperature alarm. In this case, wait for the motor system to cool down, as the machine will not restart until the temperature goes below the safety threshold.