Happijac motor drive
I have a Bigfoot with Happijacs. One of them keeps blowing the fuse. The jack moves freely when manually cranking the jack. Do any of you know if all the jacks use the same drive motor assembly? I hav...
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racedrvr wrote:
There had to be some moisture down in the motor bottom bearing to cause it to "stick" so I suspect it's just a matter of time. But for now it looks like I am OK.
That's what happens. Disassembly and bearing replacement is not too difficult. Warm the plastic cover a bit, and use an air nozzle at the drain hole to remove (learned that trick at here at RV.net). Small tie wraps can be used to hold the brushes in place. I found a suitable bearing at Granger, and drilled the bottom cover to give the moisture that inevitably makes its way in, a way out.
