BAC RV Club Forum
General Boards => Technical Support => Topic started by: Ante Peros on March 06, 2026, 02:20:00 PM
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We have a 2008 Beaver Patriot Thunder (Brandywine) and have been parked and leveled for a couple of months. Everything has been running pretty smoothly, but when we get up inside the coach and move a lot of times there is a sort of "bump" and a slight movement in the coach- like it is settling. The hydraulics are down and we are level. The bump is sometimes barely noticeable but occasionally it feels like the whole coach has moved. Has anyone ever experienced this? I have checked and all 3 hydraulics are touching down. Any thoughts would be appreciated! Thanks Ante
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Ante,
Nor sure about hydraulic jack systems but an air bag system automatically adjusts every so often if the system detects a slight out of level condition which is normal if you are parked for an extended time. May want to check your owners or hydraulic system manuals. If that's not the case and a single jack is settling the system should detect an out of level condition at some point.
Steve
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With hydraulics my coach does this. One rear jack has very small leak and maybe once a day i will feel and hear a pretty loud bump. I'm just assuming it's the coach settling. Where I'm at now its pretty level so I just dumped the air and didn't put jacks down for about a week at first and no thumps. The bumps/thuds only show up when I decided to hydraulic level due to slight wind movement. So pretty sure it's the jack, but you could also have seals or valves leaking at the manifold at the pump.
What bums me out is that's a brand new jack as my previous jack got torqued with unstable base and wouldn't fully retract - it doesn't take much with this heavy coach. But last fall I was at a new park that had a lot of non compacted deep gravel and even though I had a good sized 1.5" thick , 18" square plywood pad under the jack, the gravel still settled funny under the jack and it must have still got torqued a bit because it starting leaking after that night and won't retract that last inch anymore. The leak is very small - just enough to wet the pad over a couple weeks. I've heard they are sealed and it's pretty extensive to replace the seals. So as careful as I thought I was being - it wasn't good enough.
BTW, I use a SnapPad on the front jack as it is harder to get my plywood pad under the center of the coach (3 jack design) and that jack has lots of ground clearance for the additional thickness for the SnapPad. Highly recommend.