Back At Heavy Haul

Discussion in 'Heavy Haul Trucking Forum' started by ColoradoGreen, Aug 9, 2017.

  1. ColoradoGreen

    ColoradoGreen Heavy Load Member

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    65-ton rated modular deck in 12ft, we have an 8ft extension for it, as well. Neck has a 3ft flip over section so the trailer is easily operated as both a 2-2-2, longnecking, or short-neck if you drop the jeep for a day, scraper bolsters. 1-inch main-rails and half-inch outer rails, 24inch crossmember spacing, full width crossmembers to the excavator trough. Full height swing-out outriggers. Sliding fifth wheel on the jeep with about 6ft of slide, as well as multiple kingpin settings on the main neck, air-ride with manual ride height controls, full shim set for both the main deck and booster. Length is just right for out west, as I'll be about 110ft long hooked to the 2-2-2 meaning in many states West of the Mississippi I can skip the pilot car without having to deck the jeep. That being said, I carry enough tools with me to deck the jeep and booster if needed and bring it down to a 53-ft trailer with the flipover turned up and the extension out of the deck. Walking beam suspension on the main deck with direct tie in to the booster, meaning the main deck and booster level each other pretty closely.

    I only have one real point I dislike about the trailer, and that's the neck design, for two reasons. For starters, it's not a scraper neck, so, when going to large scrapers like a 637 you have to have the can way on the end of the scraper bolsters, or turn it around with the can way up in front. The other thing I'm not wild about is that Etnyre necks pick the deck up essentially by rotating the base of the neck. It works, but, the pistons lose a lot of efficiency trying to roll the base of the neck rather than a vertical or near vertical lift like most TK's, LK's and XL's.

    Axle spacings are set-up to allow max gross in most conditions. The trailer is good to the 200,000lb. gross weight limit on an annual in Colorado. It should permit to about 217,000 (assuming you could get all of your axle weights dead on maxed out) in Wyoming. Varying state to state, I can gross between 172,000 in the lightest states (Oklahoma, et al) and to around 210-220,000 in the heavier states. It puts the trailer in the category of transporting 245 Cat's, 637 Scrapers, D10's, etc (obviously with some of the attachments off on the excavator and dozer, they'll come off anyway. Colorado though, we can legally move a 637 in one piece).
     
    Last edited: Sep 3, 2017
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  3. johndeere4020

    johndeere4020 Road Train Member

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    It's not air ride, how much max well?
     
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  4. ColoradoGreen

    ColoradoGreen Heavy Load Member

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    No, it is air ride walking beam.

    26 in the well, 34 with the extension in.
     
  5. johndeere4020

    johndeere4020 Road Train Member

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    So it actually has an air ride walking beam? That's pretty rare, can't say I've ever seen one on that type of trailer.
     
  6. ColoradoGreen

    ColoradoGreen Heavy Load Member

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    We have 4 air ride walking beam lowboys. Two 3-1 60 ton Trail Kings, the 65 ton Etnyre, and the 75ton TK 2-3-2 which is really our super load trailer.

    Air ride walking beam isn't uncommon out west, there's a handful of states that require axles within an axle grouping to be no more than about 2,000lbs difference front to back.

    65,000 sitting on a tridem with standard air ride you can be 5-6,000lbs heavier on the lead axle than the last.
     
  7. johndeere4020

    johndeere4020 Road Train Member

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    Most states require an axle group to be controlled by a common leveling valve. If you know what your doing with a standard air ride you'll be closer than 2000 front to rear.
     
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  8. DDlighttruck

    DDlighttruck Road Train Member

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    I know enough to be dangerous- the trailer is walking beam. There are two blocks that flip down from the trailer to the frame to lock it without a booster.

    Add a booster and remove the blocks and the suspension transfers to the air ride booster. The walking beam then creates a stable platform for the load to ride on.
    That's all I got, I assume that's what he is describing. Hammer showed me his in person.
     
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  9. johndeere4020

    johndeere4020 Road Train Member

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    No this is under that, this is the air ride that actually attaches to the axles. A "normal" suspension like his or mine has an airbag on each side behind the axel but the axles themselves are completely independent of each other aside from being attached to the trailer frame. An air ride walking beam has the axles attached to the ends of a beam then the center of the beam attaches to the trailer frame at a single point.
     
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  10. ColoradoGreen

    ColoradoGreen Heavy Load Member

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    You're right on on the description, DD.

    I have yet to see a leveling valve that can keep up with a 336 or a 2100 Wirtgen on a 3 axle lowboy.

    All of the 55 tons are standard air ride, along with the fliptails.
     
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  11. ColoradoGreen

    ColoradoGreen Heavy Load Member

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    I mean, manufacturers will refer to them as walking beam, but, what do they know, right JD?
     
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