Happijack problem

check the levers on the side of the jack to be sure they are fully engaged.

If you go to the university...there is a tear down article I wrote for a 4150...I'm trying to find the link

I did and they are.

IIRC there is an adjustment on the amount of torque it takes to ratchet the gears. Perhaps yours has backed off?

You may need to re lube it. At least tear into it and make sure it doesn't have water intrusion. Sorry I can't figure out the sticky link but the article has pics which is helpful

This is the article: http://www.rv.net/forum/index.cfm/fuseaction/thread/tid/22881036.cfm

Just copy and paste it in your browser and the info will pop up.

I just read through the sticky and there is 17 pages of really good info there. One guy even had a paint build up inside that was binding up the jack. You might even have a bent tube or rust as another issue. Either way, it's good info and education is always worth the read.

daily double wrote:
I've got a Happijack 4150 on the rear of my TC and when I try to raise the camper it works fine until it starts to raise the weight. Then it sounds like it's stripping gears and won't raise any farther. The other 3 corners work fine. Any suggestions?

If you use the other 3 to lift the camper slightly so that this jack is off the ground (not far) does this jack still move until it takes a load or is it a specific spot where it ratchets? If it's the load and not the position of the jack, you could at least use this method to inch the camper up. Just don't get the camper too far ahead of the 4th jack. If it's a single spot where it ratchets, there may be something bent or broken which gets us back to the teardown/lubricate post.

Good advice!!