So last week I acquired a Lift mast and motor that had burnt out. It appears that the lower circlip had failed allowing the rotor to push forward into the windings. One of the magnets managed to tear and short out a winding resulting in another winding burning out. I’m not sure if it’s a design flaw, but I have seen a few units with this type of failure now.
I’m now slowly disassembling the unit (when I have time) and am hoping I may be able to rewind it and get it all back up and running again. Either way it’s going to be interesting to see exactly how the motor is wound.
And now for some pics of the motor…