Problem with kingpin or 5th wheel?
Discussion in 'Trucks [ Eighteen Wheelers ]' started by D389, Apr 29, 2013.
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I have seen that before and it was after the truck and trl was on its side the tow truck hooked to the pin and pulled made it bubble from the trl
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I haven't had a chance to look at it closely but I'm leaning toward the cross members being bad or the frame being bent. Its eating the inside driver side tires when loaded and its been aligned twice. The king pin plate has also been replaced but I don't know all the details on that. Its also an '01. The other trailers I pulled were loaded the same way and didn't lift off the plate that way. I haven't figured how to multi quote so I'm answering all your questions in one long post.
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king pin support is bent from ram racking ( backing in tons of times with a weak support ) and it starts bending a little at a time. have seen this on your make and fontaines also
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when the top half of pic showed on my comp, it looked like a pic of part of the titanic found underwater after 80 years.
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Thanks for the replies. We found a bunch of cracks in the welds where the pin plate meets the frame rails. Who ever replaced the plate didnt prep it right and welded over the rust. So far so good. The trailer ran all the northern states and canada. The titanic is in better shape I promise.
Last edited: May 11, 2013
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Overhead welding is the hardest to do. I doubt they flipped the trailer over to weld new bolster on.
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