PTO shaft correct end for shear bolts

[Dave_eng]

The question of which end of the pto shaft should have the shear bolt has been discussed before. My implements have the shear bolt at either end.

I asked COMER's tech support people thinking they would be the better qualified to answer. No doubt others will prefer what has worked for them.

My question : Can you advise on which end of the pto shaft the shear bolt should be located. The tractor end or the driven implement end.

Why?

Here is their answer:

The protection device is usually on the implement end. The torque is usually driven by the implement and you want to protect the gearbox.

Chris Smith <csmith@comerinc.com>
Subject: Fwd: Question on Comer pto shaft

Dave M7040

 

[twomany]

Really?

Implement gear boxes are cheap compared to tractor PTOs.
Torque is only supplied by the tractor. At least I have never seen an implement providing "torque". I wonder what is being said?
But, protect what you want.
Many men seem to have big bellies. 'Putting a roof over the things they choose to protect ;-)

 

[North Idaho Wolfman]

I personally think having the shear point at the PTO side makes more since.
If you have any failure with the PTO shaft it will protect for that too.