Hook lift truck - Need Help

Discussion in 'Heavy Equipment & Pavement' started by ShadyTree, Dec 30, 2013.

  1. mrsops

    mrsops LawnSite Silver Member
    Posts: 2,875

    I have an f750.. I have picked up 10 ton as well.. Truck struggled thou I'm thinking about turning up the hp in it what motor do you have??

    I also have a 14 foot box that sucks when I'm dumping it angle is terrible.. 12 foot box is 10 times better
  2. ShadyTree

    ShadyTree LawnSite Member
    Posts: 63

  3. ShadyTree

    ShadyTree LawnSite Member
    Posts: 63

    I have a 10 ton hook as well. At best it will pick close to 9 tons. It struggles at its capacity. Onces it on the truck I have a hell of a time trying to get it off. For some reason when I have that much weight on my smaller truck it just won't push it back. The pain in that the only way I can dump it is I have to push the box back before I lift it.

    Finally got a hold of swap loader they have agreed to take a look at the truck. Next step is a lawyer.
  4. ShadyTree

    ShadyTree LawnSite Member
    Posts: 63

    Here is another video of the truck. We figured we had about 10.5 yds of wet dirt which is about 3300 lbs/cu yd making a total weight of around 34,000 lbs plus the box weight.

    Check this out and let me know what you think http://m.youtube.com/watch?v=gnZq8g344tI
  5. mxridernorth

    mxridernorth LawnSite Senior Member
    Posts: 306

    Did you get the empty weight on the FA and also the wheel base? From what I can discern by scaling off the photo, It looks like the boom pivot should be moved forward on the sub frame by about 1 to 1-1/2 ft. The front bottom corner of the bin should only just clear the rear of the truck as it is lifted. Any excess only takes away from the lifting capacity. Post a side-view video lifting an empty bin.

    Here's a really quick sketch of where I'm coming up with the numbers. The scale was taken based on the bin being 14'.

  6. whiffyspark

    whiffyspark LawnSite Fanatic
    Posts: 6,113

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  7. zabmasonry

    zabmasonry LawnSite Senior Member
    from C. VT
    Posts: 314

    Does that truck have a set apart tandem configuration? I can't remember the standard distances but it looks to me like there might be a bit more room then normal.

    I agree with mxridernorth, the rotation point of the boom is too far back. I don't have any experience with dual pivot hooklifts so my expertise is about null at this point. Hopefully swaploader will get you sorted out, I assume that you've contacted swaploader corporate and suggested that this isn't the greatest press for them.

    as for picking 10 ton with a single axle, yeah I'd say that about all it will take. and we always had to find a hill to help the box to slide back before we could dump it. PIA. ditto on the 12 vs 14 or even 16 ft box. HP won't help you be able to lift more, thats either a pump or valve relief issue. I couldn't pick 10 ton without blocking the front of the box up a foot or so to help me through the most difficult part of lifting. If you want more hp for driving just remember that it will decrease he life of your engine.
  8. treemover

    treemover LawnSite Senior Member
    Posts: 406

    This makes a little sense. I was looking at this pic and his scales, I have 50k hook 61" hook height, I never noticed how far your hook was in relationship to the back of frame when picking up box. I bet on my truck it is at least a foot closer. When I lift boxes up they are almost rubbing the rollers when I get to frame height
    Posted via Mobile Device
  9. Krafty

    Krafty LawnSite Senior Member
    Male, from St. Louis MO
    Posts: 704

    I am going to be blunt about this and hope you don't take this the wrong way. You really just have a poorly set up truck for your needs. The way that truck is set up, length wise, there is no reason for it to be a tandem. As far as the hoist goes a 40k swap loader is on the smaller side for a hoist on a tandem. Unless you put some sort of stabilizer on the back that truck is never going to haul the kind of loads you are wanting too.

    The pivot point as you guys are calling it on both of our hooklifts is right in the center of the rear axle. To be honest when the manufacture of these hoist send them out there is not much wiggle room as to where you can put the pivot point. When you buy a hoist you buy it specific to what chasis it is going on. When we purchased our Kenworth last spring for several weeks galbreath and Kenworth sent drawings back and forth to make sure both the truck and hoist were set up to match.

    The problem is you are trying to operate that truck right at capacity or over its capacity. The fact that you can legally load that truck to 70k surprises me. Around here the most you could licenses that truck is to 54k and 66k if it had a drop axle. (exception in the commercial zones you can haul slightly over) My point being if you are trying to haul as you said in the previous post 34k plus lets say 4k for your box. You are trying to haul 37k on top of a truck that I am guessing empty is around 27k. So essentially, what you are trying to do is pull the entire load that truck is capable of hauling all up on one axle as you pull it onto the truck. There is a use for every type of truck from a hook, to cable, to single axle, to tandems and tri's. If you notice other trucks the guys that are hauling that kind of weight always have longer trucks, or a cable style hoist.

    Our trucks are currently set up as single axle trucks with galbreath 30k hooks. The both will accept a 17' container with no overhang. When picking up a box with these trucks it will need to be around 11 ton before it will begin to lift the front tires up, which is way over weight for these trucks.

    I hate to say it but whoever sold you the truck did not do a very good job of educating you on what you need. In my opinion if you are hauling a lot of bulk materials, and need a small wheel base to pull a trailer you would be much better off with a dedicated dump truck.

    NEUSWEDE LawnSite Bronze Member
    from Maine
    Posts: 1,147

    Food for thought, check out thtis video by swaploader ( I know its a single axle but still proves a point) http://www.youtube.com/watch?v=td7Q...LGoivCyPxzck5xlKAH6_GK&feature=share&index=10
    look where the bottom of the hook pivots at is in front of the rear axle, in your video yours is behind your rear axle. I guess I am on the same page as yours needs to move forward. Maybe that modified yours to fit the frame on the truck versus modifiying the truck to fit the hoist.
    Another of their videos to compare to, https://www.youtube.com/watch?v=kSccwu-XJWU&list=PLID8Ah168rpLGoivCyPxzck5xlKAH6_GK

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