Pulling force of a tractor

I am thinking of fabricating my own subsoiler type attachment for my FE-35. I notice most of the comercially available ones have shear pins, I assume to protect the operator when/if the device becomes stuck on a large root or rock in the ground.

Can anyone tell me what a reasonable figure for pulling power (to aid in sizing the shear pin) would be on that FE-35? It is a strong running (just rebuilt head to toe) 4 cylinder Standard diesel.

If anyone has built their own, I would love to talk or see pictures of what you did, and if you would do it again. I know it would more likely be more cost and time effective to buy one, but this is a hobby kind of thing for me.

Your input is greatly appreciated!

Mike

The shear bolt breaks when you hit a rock. Something will break, you really hope it is the shear bolt. Otherwise the frame, bar, tractor 3pt linkage, or a rear end gear _will_ break.

The shear pin would be sized to the point in the ground.

The implement will be sized to the tractor by the # of points you have.

So, look at the commercial ones you see, and measure the size of the pin, the depth of the point from the pivot pin, and the distance from the pivot pin to the shear pin.

All 3 of those numbers are important, and if you build exactly the same, you can use the same size (and grade of course) of shear pin.

--->Paul