wirlybird's latest activity

I'll see about pictures tomorrow weather permitting. Here is one thing I found though. Here is a rough sketch to illustrate. In the...

This one does not have springs on each bolt like some do. It has a spring plate called a Belleville spring. It does the same thing as...

It is odd.

I looked at the u-joints and they are ok. In phase. After thinking about it, I don't know how you'd get them out of phase as some...

I don't see how a shear bolt like this gets "stretched and relaxed" during the use - we're not talking thousands of RPM here and the...

All very good points and I have to agree that tightening the bolt more than bolt head and nut touching the shaft collar doesn't...

I'd agree on grade 8. That is what the manuals call for however. Drilling out the input shaft would be difficult as it is hardened...

It is a pretty standard setup. In the picture the bolt in question, green arrow, holds the PTO saft to the input shaft on the gearbox as...

On my Deere (Frontier) and other cutters they call for grade 8 1/2" by 3" with the slip clutch. I usually run a grade 5 as a safety for...

You could tighten the bolt down to its max torque and it isn't going to tighten the PTO shaft collar around the input shaft. The collar...

Could be but I do tighten so snug, no play, I just don't crank them down! I agree they are getting banged up some. Going to pull the one...

That is the thing, they haven't as far as cutting goes. As mentioned, I am cutting field grass, maybe 2 feet high, on flat smooth land...

I agree it is odd that only one side is breaking. Probably a clue. When I used to run a shear pin style shaft on this cutter it would...

I understand all of that and understand preload. What I see though is the only "stretch" force on the bolt is centrifugal force of the...

Probably no more than that. How I ended up with it is this. Years back I had a John Deere 755, still have it, and wanted to see if it...