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Tractor Transporting Discussion Forum

Re: New Kaufman trailer. Very Disappointed.

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Dean Olson

07-17-2012 19:52:27

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I had a 20' 14k bumper pull trailer doing that to me and it ended being the tires. They would develop a flat spot from sitting that would take 50+ miles to straighten out. I would load it a little heavier on the tongue and that made it tolerable. I ended up replacing the tires, worn and weathered, and all the bs went away. If I'd of known that I'd of replaced them years ago.

The Kaufman guy may have been trying to tell you they put on junk tires without admitting to it.

Have the axle alignment checked. If that's ok replace or borrow a set of tires to see it that's it.
Measure the axle placement on the trailer. 60% of trailer in front of axles and 40% behind seems to be the best for bumper pull trailers.

I had to back my 5103 Deer and 6' shredder on that trailer to get it to balance properly. If I pulled it on I would have too much tongue weight by the time I had the shredder most of the way on.

I went to a 14k 20+5' deck over gooseneck and will never go back to a bumper pull.

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Ralph Bauer

07-17-2012 20:38:43

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 Re: New Kaufman trailer. Very Disappointed. in reply to Dean Olson, 07-17-2012 19:52:27  
Did balance my triple single GN (23+5), thought I do something good for the tires (chinese imports). Put the least round/ most leaded one as spare (#7) on the rack. Now they jump/vibrate a little a little between 30-36 mph when empty....will not be noticable when "pulling under load" (giving gas). Thinking about taking it back to another person for balancing... (BTW, I do my turns slow and as wide as possible....)but I'll put the tape to the axles, just out of curiosity. Trailer is Load Max, 2 yr. comprehensive/3yr. structural/2 roadside yr. warranty (for whole rig, truck and all), IIRC.

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Dick W.

07-20-2012 13:56:05

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 Re: New Kaufman trailer. Very Disappointed. in reply to Ralph Bauer, 07-17-2012 20:38:43  
A good balance job will only improve the vibrations on an out-of-round tire, never make it right. OOR tires a problem everywhere you install them, you need round tires for a good ride.

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07-20-2012 14:08:13

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 Re: New Kaufman trailer. Very Disappointed. in reply to Dick W., 07-20-2012 13:56:05  
Guys thanks for all the input on the tires but i had them professionally balanced and there pretty decent now. Im sure with high end tires it would be better but not sure by how much. Anyway tire balance issues are a more consistent problem. If there out of balance then there out of balance. However the trailer does fine alot of the time and is very smooth but on certain parts of the highway it bucks and jerks violently. Theres something else going on here but not sure exactly what. I plan to take it in for service in next few weeks and hopefully they find what is wrong. Really think it has nothing to do with tires as the trailer can run very smooth for miles then all the sudden starts the bucking an jerking thing. As i mentioned earlier my other trailers do not do this.

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