This trailer tire wear pattern...

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by TallJoe, Dec 29, 2018.

  1. TallJoe

    TallJoe Road Train Member

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    That's good info.
    By looking at those, my problem would best fit the Shoulder Step Wear description.
     
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  3. Rideandrepair

    Rideandrepair Road Train Member

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    I’m not an expert on tires. I changed them for 6 months split rings one and two piece boloneys and all.After that 6 mos I wantednomore to do with Truck tires. However I’m curious what Joe comes up with. If trailer is only 2 yrs old and tires are original my guess is their just worn out. The river wear pattern seen is normal as the weak point of tires. Same way my steers are still good after 169 k except for river wear. If trailer is more than 5 yrs old Id say definately check bushings and get aligned and shocks if needed. Otherwise 2 yrs out of a set of trailer tires and still have tread left ain’t bad.
     
  4. Rideandrepair

    Rideandrepair Road Train Member

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    110 psi @ x lbs simply states max psi and max Load rating. If anyone wants to put in more than the max cold psi to save a few cents on fuel or try to get longer tire wear, good luck you’ll need the extra $$ for king pins, bushings, and God knows what else. Maybe a new filling in a tooth.
     
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  5. PE_T

    PE_T Road Train Member

    Did you ever solve this problem. I’ve been having a similar tire wear as well on a fairly new Utility reefer trailer with Michelin tires. I called a Utility shop weeks ago, and he was aware of this strange tire wear, but didn’t have a solution other than rotating the tires. I’m going to get an alignment and have my wheel bearings checked to see if that solves the problem. It’s disappointing when these problems happen on new equipment. :biggrin_25513:
     
  6. TallJoe

    TallJoe Road Train Member

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    Seems like a not isolated problem in these new Utility vans. Another guy bought two of them last year and was complaining about the same thing. I checked the bearings and they were tight. As far as the alignment I did not check it, as I did not have the opportunity yet and it does not feel off at all when I pull it.
    I did not want to overthink this so I let the tires go like that. I still have 6 of them - they did not get much worse though, soon enough will replace another pair with the steers and perhaps at that time will go for the remaining 4. That's all right considering over 215K on them now. At this rate before they're done, the trailer will be due for replacement, I'd rather have them trailers up to 5-6 years, no longer.
     
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  7. PE_T

    PE_T Road Train Member

    I’ve been thinking another possibility that is usually not discussed is tire defects, especially since these trailers are new. I suggested trailer alignment to the guy at the Utility shop, but said it was unlikely as Utility trailers do come aligned when sold. I too haven’t noticed my trailer or truck pulling to one side.
     
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  8. Lyle H

    Lyle H Road Train Member

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    It’s the axles flexing. They aren’t as strong as they used to be built.
    Call MD Alignment in Des Moines and talk to Mike.
     
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  9. PE_T

    PE_T Road Train Member

    Now that I remember, what I want to eventually do is install a camera to take a look at how the trailer tires are rolling. I usually see trailer tires moving irregularly on the freeway. Maybe mine are doing something similar. I’d have to figure out a way to mount a spare phone on the trailer bottom rails.
     
  10. Heavyd

    Heavyd Road Train Member

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    Trailer axles do indeed flex enough to cause inner shoulder wear on tires. The other issue are the sliding bogies have a sloppy fit in the sliders and the sub-frame which are attached to the axles are allowed to run misaligned and cause dog tracking.
     
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  11. Dino soar

    Dino soar Road Train Member

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    It's an interesting idea that if your tires are wearing on the outside or inside to over-inflate them a bit.

    The problem should be solved whether it's bad bearings or bushings or whatever it is, but I think that's really an interesting idea. As long as it's safe and the tire doesn't blow up why not?

    If the wear is abnormal on the edges and you over-inflate it a bit then it will wear the center more but that should give you more time and help to even the tread out and get more time out of the tires.

    As long as it is safe, why not?
     
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