Happijac TC jacks stop, no light
2007 NL 10'2QRR. tag says 2425# dry, but I beleive wet and equipment is closer to 3500# (haven't checked). HJ system with wired remote and 4500/4150 jacks. When loading the camper from the ground ...
Forum Discussion
covered wagon wrote:
If the camper is left outside the moisture builds in around the lower bearing on the electric motor. That is the most likely place for the bind grind you hear. Because the white housings on each motor does allow a minute amount of moisture build and the bottom bearing nestled in an undrainable metal lobe housing, the moisture builds right there and rusts that bearing.
My jacks outside 15 yrs in PNW rain are still functioning because each year I cover the jack heads with a freezer bag after removing the electric motor cover (slides down off the motor with 25 psi air nozzle) and spray oil into the lower bearing. Use excess oil sprayed to wipe down elect motor housing and put cover back on. Good to go for storage.
Can you explain the lubrication process in a little more detail? I think you are saying you use a freezer bag around the opening at the top of the jack once the motor is removed and spray lots of lubricant inside so that it gets down into the drive screw area.
FWIW, these are the files that HJ sent. I also have a video of the logic board turning off in case anyone is interested. The board checks out so it's most likely due to the bad thermal fuses or the lubrication (both of which are being addressed).
https://www.dropbox.com/sh/xlur1z111cfbdov/AABhGfRWBPIW9uscguhc9Y9Ya?dl=0
