Over on steer axle

Discussion in 'Questions From New Drivers' started by Erjonb, Jul 8, 2020.

  1. Erjonb

    Erjonb Light Load Member

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    I started to drive a volvo vn 780 d13, and wanted to know how much is the limit on steet axle for this kind of truck? Bc if it's 12000, everytime a get scaled, im over. I moved the fifth wheel, but still. Thanks and be safe
     
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  3. daf105paccar

    daf105paccar Road Train Member

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    Start by checking the rating on your tires and steeraxle.
     
  4. Erjonb

    Erjonb Light Load Member

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    Aug 27, 2019
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    Thanks, but any chance limit can be 13200? That's what someone told me
     
  5. ZVar

    ZVar Road Train Member

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    It can be. Volvo I'm in right now is 13,200 for the front axle. The rating is on the door jamb.
    12,000 is simply a rule of thumb so if trailer and drives are both fully loaded at 34,000 each you can only have 12,000 on the steers before your over the 80,000 lbs limit. Things never work that way in real life. There are a few things to look at for the axle weight.
    1. Tire ratings - on the tire
    2. Axle ratings - driver door jamb
    3. State ratings - front of your atlas

    It's the lesser of the three.
     
    Last edited: Jul 8, 2020
  6. bad-luck

    bad-luck Road Train Member

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    Generally, having the 5th wheel in between the drives is where most people keep then5th wheel. Sliding it back should get some weight off of the steers.

    Numerous states allow the weight rating on the tires for the steer axle. For instance, I run 16 ply which are rated at 13,200. Hope this helps
     
  7. Erjonb

    Erjonb Light Load Member

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    Aug 27, 2019
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    Okay thanks
     
  8. Erjonb

    Erjonb Light Load Member

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    I had another volvo before this one and both trucks had fifth wheel all the way on front, and i never was over with that one, rn i have 40k pounds and steeraxle is 12220 pounds even tho i moved it one hole. Thats why im asking, I don't get it
     
  9. bad-luck

    bad-luck Road Train Member

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    A few holes back you will be legal.
     
  10. Bill51

    Bill51 Road Train Member

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    [​IMG] repeating.

    Both the manufacturer's front axle rating and the tires BOTH should meet the specs for the weight.
    As quoted, if one or the other is rated lower, the lower rating is the steers weight limit.
     
    ZVar Thanks this.
  11. Capacity

    Capacity Road Train Member

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    We ran bus tires on our heavy tour on a standard 12k front axle
     
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