Originally Posted by hopmonster
I'm sure this is a rookie move, but I did it. I must have exceeded the up limit on the power jack as it now will not move the cylinder up or down to raise the AS. It powers fine and I can see after opening the cover that the chain and belt are intact and they do move.
Previous owner mentioned something about the limit and not to exceed it but I was too excited when I bought it and didn't completely catch what he said.
The unit is a 77 Land Yacht (31) and the jack is a Power Jac.
Is there a trick to fixing this???
Thanks so much for your help!
Mike maybe..... Here is a link as I had a similar problem.
I also thought I had exceeded the uptake, but I remember both at walk thru and later with the dealer, that it stops automatically, or should by design. After talks with Barker, then dealer and JC (in that order) I have a new head on the way to correct the non-functionality of the self limiting switch/circuitry. The dealer wil reinstall and re-sequence the head.
Note I have a Barker and you have a Power Jac, but I suspect this principle may apply.
When I first talked to Barker they indicated in needed to be re-sequenced...essentially resetting the zero to 3 the travel of the post. I have attached the instructions for Barker unit in case your is similar...probably at least in concept.
I would try calling CS at PowerJac first. and I you really need to get this functioning this weekend and PowerJac is closed, maybe you can gain some insight from the attached.