Discussion Category:  Vacuum Pumps

Siezed pump, Ian Setterfield

The pump was tripping the electrical overload. First thought was it had seized on the bearings. After stripping it was found to be mechanically free and turned with ease. Now I am thinking the motor was holding the scroll like it was a brake. If this is so, what has gone wrong, is the motor windings at fault or has a capacitor broken down?

Ian Setterfield

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Ian Setterfield
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