Trailer-beaver tail rebuild-helper springs

SDE

Well-known Member
This Circle D trailer had 4 helper springs on the shaft to help lift the beaver tail. One was broken and one other was rusted half way thru. I do not know what these springs were rated for and so all I could do was order 2 more right hand springs that were of the same wire thickness. As difficult as the re assembly is going, I now wonder if all I should be using are the two new springs. The old springs had six coils and the new ones have twelve. I should be able to get it together this afternoon, and then I will be able to open and close it to check how well it works, but if I need to remove the two old springs, I would rather do to now and make the re assembly easier.
TY SDE
 
If the old springs that are still in there are in good shape, I would leave them.

With the same wire gauge, the 12 coil will be weaker than the 6 coil unless you can pre wind it before putting it in. That may be what the engineers came up with, a longer spring with more preload instead of a short, stiff spring that would be more prone to break.
 
The new springs did have a longer end on them and they did feel to be easier to rotate. I got it assembled and welded together. Now to replace the brakes.
TY
SDE
 

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