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
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..
