Happijac Help
I have motorized Happijac 4150 jacks on my camper. For the most part they have been trouble free. This spring when I used them for the first time the two front jacks would NOT cooperate. The lacks ...
Forum Discussion
ejfranz wrote:
Be careful, one of my 4500 failed. The nut the worm screw runs through rusted out.
When you pulled them apart was there rust on the worm screw? If so the main nut is rusting and could be binding.
Yes there were a few spots of rust.
Z-Peller wrote:
When you pulled the jack apart and greased etc, did you pull off the cinch spring and check the roller bearing in there?... use emery cloth to clean up the thrust block sufaces and washer the bearing runs on?...I have also had to emery cloth rust from the hand crank barrel and bore when it is apart..
I did NOT check those things. Looks like I'll be tearing it down again. Good thing it's easy. Thanks to everyone for your help. I'll post my findings. I finally did get ahold of someone at Happijac but he was of no use. Very rude, said he call me back in a few minutes. That was yesterday and haven't heard a peep. Poor customer service.
Mike
