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Old 05-29-2012, 02:24 PM   #1
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Wheel Chock Problem

I own a 2005 Cherokee 27l with a tandem axle. We camped over Memorial weekend. I use the pinch down wheel chocks that go between the front and back wheels. I had to place a plactic lago block under one side to level the camper from side to side. That first evening we had heavy down pours and wind. I didn't sleep well and it seemed like the front corner (bedroom area) was lower then the rest of the trailer. I felt a tendency to roll to that side. The next morning I decided to start from scratch and raise the corner stabilizers in hope of equalling out this twist in the camper. I took the pressure of the back two stabilizers first. Then all of a sudden the whole camper began to roll forward. I had the tongue jack on a block of 4X4 wood 6 inch high. The tongue jack slipped off the wood block. The camper rolled forward about 6-8 inches. The tires rolled off the one level of lago blocks I had under them. The front scissor stabilizer jacks that were still touching the ground folded under.

What I found was that the wheel chocks had some how loosened. I know they were tight when we first set up the camper for the weekend. I know we had a big temperature shift once the storm front came through. Now I wonder if this could cause the tire pressure to change enough to cause the wheel chocks to be loose?

Live and learn. I just ordered two new front stabilizers to replace the damaged ones. Doesn't look to hard to replace on my own. I have another camping trip planned in two weeks.

Has anyone come across this problem?

Other then checking the wheel chocks daily does anyone have any other suggestions that might work better to keep this from happening again.
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Old 05-29-2012, 02:30 PM   #2
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X chocks will solve your issue.
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Old 05-29-2012, 02:45 PM   #3
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Doesn't the chocks I use that pinch down from above and below work on the same principal as the X-chocks. I thought it did (Purchased at Walmart). I hand tightened mine down so they felt solid and didn't budge.
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Old 05-29-2012, 03:51 PM   #4
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If you set up right after you got off the road (which almost all do) the tires will be at a higher pressure from going down the road. As they cool to normal temps, the tires will contract back down and you need to re-tighten the chocks.
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Old 05-29-2012, 03:56 PM   #5
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Quote:
Originally Posted by travyp View Post
If you set up right after you got off the road (which almost all do) the tires will be at a higher pressure from going down the road. As they cool to normal temps, the tires will contract back down and you need to re-tighten the chocks.
As above...re-tighten after sitting for a couple of hours and you'd be surprised how much more you can tighten them up.

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Old 05-29-2012, 03:58 PM   #6
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Sorry I assumed by your first post you meant slide in wedge chocks,sorry
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Old 05-29-2012, 07:47 PM   #7
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If you use any type of tire lock, that goes between the wheels, that is the last thing you put in, after the trailer is level, and the first thing you remove when you get ready to hook up. If you must re-level your trailer, you should loosen these firs, re-level, then reinstall or re-tighten. The tire diameter will change a little with heat, but when you were adjusting the jacks, you caused a suspension shift, which caused the distance between the tires to change,(it's a geometry thing, having to do with the the way the springs are joined in the center), and therefore your camper moved. Lesson learned, NEVER mess with jack, leveling, hooking, unhooking, without first having the wheels chocked with chocks on the ground.
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Old 05-29-2012, 09:36 PM   #8
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Windrider,
Thank you for the response. You are the first to mention using the ground chocks first. I guess I have never heard of that before. This being only my third year using a tt I have only used the squeeze down chocks in the middle. Some areas I have set up the camper have not been level. I guess I wouldn't trust those ground chocks to start with in those cases. Same for my driveway at home. Lets just say it is up hill to start with (approx 20 degrees) and not has steep a slant at the top (5 degrees). I park the camper there (part time) but the tongue jack is over the steeper part and needs to be almost fully extended to make the camper almost level. Again those ground chocks make me nervous as a first step. I don't use the corner stabilizers when in the driveway.

But I will try your method the next trip out (2 weeks)

Curious to hear from others on your comment (agree or disagree)
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Old 05-29-2012, 09:48 PM   #9
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These do not move, period. Jack is from Chevy Colbalt, $5 at a junk yard.

They do need a coat of paint.

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Old 05-29-2012, 10:09 PM   #10
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Have used the x chocks between the tires for years without putting any chocks on the ground and never had a problem on unlevel sites as the tires never leave the ground. Would be hesitant about putting the jack on the ground beween wooden chocks as if enough pressure is put on the chocks, the wheels will be elevated off the ground thus defeating the purpose. But, bottom line, everyone has their own way of doing things and that's what makes this world go around.

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