1. Thank you for visiting HeavyEquipmentForums.com! Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. We welcome you to register using the "Register" icon at the top of the page. We'd appreciate any help you can offer in spreading the word of our new site. The more members that join, the bigger resource for all to enjoy. Thank you!
  2. ALL NEW MEMBERS READ THIS FIRST!! Thank you for joining Heavy Equipment Forums! If you are new to forums we communicate with "Threads", please search our threads to see if your topic may have already been answered and if not then click "Post New Thread" in the appropriate forum. This will allow all of our members to see your question and give you the best chance to be answered. After you've made a number of posts you will graduate to Full Member status where you'll see a few more privileges. Following these guidelines will help make this the best resource for heavy equipment on the net. Thanks for joining us and I hope you enjoy your stay!!

Mech Detach Neck too low??

Discussion in 'Trailers' started by Andrew_D, Apr 19, 2014.

  1. Andrew_D

    Andrew_D Senior Member

    Joined:
    Oct 20, 2012
    Messages:
    297
    Location:
    Newdale, Manitoba, Canada
    I went and looked at a lowbed today. 1979 Cozad. Tandem axle (11r22.5 regular tires). Mechanical Detach. Live roll at the rear.

    The underframe clearance was ~30" just ahead of the axles. This means that the upright part of the neck isn't very tall. The front of the deck was sitting up on some blocks, but I estimated that if it was sitting on the ground (for loading), that the kingpin would have been 14" off the ground. So how the heck would you hook up to that trailer??? Would need some awful long ramps on the truck wouldn't you? And to top it off, horizontal distamce from neck to kingpin is only 78", so no room for long ramps on the truck.

    Would this trailer require a winch truck to lift the trailer up?

    I didn't have the camera with me, so no pics unfortunately.

    Andrew
     
  2. RZucker

    RZucker Senior Member

    Joined:
    Jul 7, 2013
    Messages:
    4,009
    Occupation:
    Mechanic/welder
    Location:
    Wherever I end up
    It should only require a set of short steep ramps (45 degrees) to take out the slack in the neck and then slide up standard ramps to the 5th wheel. Hard to explain and I dont have pics either. I would find the previous owner and check out his ramp setup.
     
  3. Andrew_D

    Andrew_D Senior Member

    Joined:
    Oct 20, 2012
    Messages:
    297
    Location:
    Newdale, Manitoba, Canada
    It's at a trailer dealer. He buys and sells mostly flat decks to farmers to use for hauling hay and/or equipment. So he doesn't have a truck set up for this trailer. The front of the deck was up on blocks when I was there.

    14" is pretty close to the ground though. I'm guessing that the bottom of the ramp would have to be below the bottom of my frame rails. I don't think I've seen one that low???

    I'm not at my yard to measure my truck frame, but I'd guess the top of the frame is 30" plus? So that's minimum 16" of rise. Even at 45ยบ, that's an additional 16" sticking out the back of the truck.

    Andrew
     
    Last edited: Apr 20, 2014
  4. Andrew_D

    Andrew_D Senior Member

    Joined:
    Oct 20, 2012
    Messages:
    297
    Location:
    Newdale, Manitoba, Canada
    I can't edit my original anymore.... It's not a Cozad, it's a Scona.

    Andrew
     
  5. 1466IH

    1466IH Senior Member

    Joined:
    Feb 5, 2014
    Messages:
    281
    Location:
    prairie du rocher, il
    It may be a mechanical detach and you have to let the air out of the truck to get under it

    Sent from my SAMSUNG-SGH-I317 using Tapatalk
     
  6. Andrew_D

    Andrew_D Senior Member

    Joined:
    Oct 20, 2012
    Messages:
    297
    Location:
    Newdale, Manitoba, Canada
    Yes, it is a mechanical detach. But I've never seen a mechanical detach with 30" of ground clearance before. Which means that the neck drops very low to the ground for loading.

    Andrew
     
  7. Andrew_D

    Andrew_D Senior Member

    Joined:
    Oct 20, 2012
    Messages:
    297
    Location:
    Newdale, Manitoba, Canada
    Basically, it is a single drop lowbed. ie: no drop from the axles to the deck. Hence the 30" of clearance. Which means that the kingpin is going to drop slightly more than 30". My airbags will give me 4" (KW 8 bag setup), so the ramps would need at least 26" of vertical. That's going to mean the bottom of the ramps needs to be around the center line of the diffs wouldn't it??

    Andrew
     
    Last edited: Apr 20, 2014
  8. ben46a

    ben46a Senior Member

    Joined:
    Mar 11, 2007
    Messages:
    773
    Location:
    Waverley NS/Fort Mac AB
    With a live roll at the rear, its likely designed for a truck with a power tower and winch setup, to winch the trailer onto the tractor.
     
  9. Andrew_D

    Andrew_D Senior Member

    Joined:
    Oct 20, 2012
    Messages:
    297
    Location:
    Newdale, Manitoba, Canada
  10. 1466IH

    1466IH Senior Member

    Joined:
    Feb 5, 2014
    Messages:
    281
    Location:
    prairie du rocher, il
    The trailer may have a landing gear that might be broken or something or it is designed for a winch truck

    Sent from my SAMSUNG-SGH-I317 using Tapatalk
     
  11. Andrew_D

    Andrew_D Senior Member

    Joined:
    Oct 20, 2012
    Messages:
    297
    Location:
    Newdale, Manitoba, Canada
    I'm thinking a winch truck would be needed. Definitely a mech detach neck with no landing gear.

    Andrew
     
  12. td25c

    td25c Senior Member

    Joined:
    Feb 15, 2009
    Messages:
    5,251
    Location:
    indiana
  13. Andrew_D

    Andrew_D Senior Member

    Joined:
    Oct 20, 2012
    Messages:
    297
    Location:
    Newdale, Manitoba, Canada
    Yup, that's close. The problem with this one is that the neck->kingpin is only 78". I'm still at the in-laws for Easter. I'll measure my truck when I get home, but I don't think there's enough room with that short of a neck.....

    Andrew
     
  14. 1466IH

    1466IH Senior Member

    Joined:
    Feb 5, 2014
    Messages:
    281
    Location:
    prairie du rocher, il
    What would be the point of a detach with a deck that high? Why wouldn't you just hang a set of ramps off the back? The only detach I have ever seen were the double drop style. I'm just not real sure what the use of one of those is.

    Sent from my SAMSUNG-SGH-I317 using Tapatalk
     
  15. Andrew_D

    Andrew_D Senior Member

    Joined:
    Oct 20, 2012
    Messages:
    297
    Location:
    Newdale, Manitoba, Canada
    Well, I got home and measured my truck. Never mind issues of hooking up....the trailer has neck->kingpin of 78". My truck from the center of the 5th wheel plate to the corner of my tire is 84". I'd have to move the 5th wheel right to the back every time I wanted to use it...

    Andrew
     
  16. Andrew_D

    Andrew_D Senior Member

    Joined:
    Oct 20, 2012
    Messages:
    297
    Location:
    Newdale, Manitoba, Canada
    I suppose another option would have been to weld the ramps on the front of the neck of the trailer going up into the air. Oh well, wouldn't be able to turn anyways... Or, if the trailer was really cheap, maybe a guy could re-work the neck???

    Andrew
     
  17. td25c

    td25c Senior Member

    Joined:
    Feb 15, 2009
    Messages:
    5,251
    Location:
    indiana
    Yeah Andrew_D , That might work . My old Lacrosse lowboy had a short neck on it from the factory . Had to have the fifth wheel at the rear to pull it .I really like the trailer so a few years ago I cut the short beams off the neck & added longer ones to fix the problem .
     
  18. 1466IH

    1466IH Senior Member

    Joined:
    Feb 5, 2014
    Messages:
    281
    Location:
    prairie du rocher, il
    I made that mistake once. Got hire as a shop hand at a local construction company and the foreman comes out and says go get a truck and hook up the tilt deck for a roller so I said ok. Went out to the first truck, got in and hooked up to the tilt deck. Come to find out I was supposed to use the old single axle ih truck because they would up having to cut the 5th wheel off of the truck in order to get things unhooked. The lengths must have been just right so the 5th wheel would lock to the kingpin but the back tires were against the trailer neck and I couldn't back up at all to relieve the pressure to pull the release handle. Lucky for me the guys there were pretty nice and understanding so I didn't get in trouble and all they asked me was "did you learn not to do that again"

    Sent from my SAMSUNG-SGH-I317 using Tapatalk
     
  19. lumberjack

    lumberjack Senior Member

    Joined:
    Dec 25, 2011
    Messages:
    1,027
    Location:
    Columbus, MS
    Impressive that they couldn't push the trailer into the truck to relieve the pressure on the 5th wheel.
     
  20. td25c

    td25c Senior Member

    Joined:
    Feb 15, 2009
    Messages:
    5,251
    Location:
    indiana
    That's how my trailer was 1466IH . 1951 25 ton tandem lowboy with the short neck designed for a single axil tractor . Pretty common setup in the 1950's . Had to have the fifth wheel plate at the rear when using a tandem tractor with it . Made my old White 4000 manual steering rig feel like it had power steering after we loaded the dozer . Got a little light on the front :D.