- This topic has 8 replies, 6 voices, and was last updated 12 years, 10 months ago by
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The anchor points of the X'd sway chains have to be the same as the anchor points for the lift arms. You need to have a parallelogram when raising and lowering, then you don't really need the turnbuckles. You should however, have an adjustable top link in order to maintain the desired geometry or perpendicularity of the quick hitch. I did this on my dozer TPH which is the same as on the wheelies. Several other members have done this as well.
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Bob, thanks. I have seen posts describing X'd sway chains, but if I understand correctly that is not what I have. I considered such a setup because, as you implied, if the anchor points of the sway chains were the same points as the anchor points of the lift arms I wouldn't have the issues with the misalignment that I have. To do X'd chains though I would have to remove a big bracket that holds a tow bar and 2 heavy hooks. I would also have to remove a guard that protects the operator from flying driveline parts. My NT254 came from Northern tool with sway chains outside of the lift arms. Give me a few minutes, I'm gonna' try to get pictures…………
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Please excuse the quality, my wife took my camera, had to use a cell phone. Bottom pictue is the quick hitch and 3PH with hydraulic top and side links. I guess it's hard to see the PTO shaft guard and the towbar hitch, but they're down there somewhere! The top picture is the right side sway chain. It runs from a bracket underneath the rigth axle, that is used to mount the ROPS and fender, to halfway back the lift arm. It is ALMOST inline with the lift arm anchor points but it is actually a bit higher. I was considering modifying those mounting points to be perfectly in line, till I thought of a single rigid sway bar instead of 2 sway chains.
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My experience with machinery indicates that if a system is rigid it will eventually break something, because there is no place to relieve transient stresses. My sway chains are the same setup as yours, in that they'’re not exactly on the same plane as the pivot for the lift arms, but the slop is tolerable to me. I’'d be hesitant to change to a rigid system.
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I had a 69 ford 3400 it had bars instead of chains it was semi rigid I guess you could call it.It still could move side to side some.Find someone who has a old ford and take a look.The bars were on pined in front near the fender bolts on the axle, the back went to the same pins as the lift arms.
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