PTO Shaft to Gearbox Bolts Keep Breaking!

[airbiscuit]

Any updates?

 

[Zork]

I have not read the 181 posts, so sorry. Has the clutch been checked to see if it is not frozen and it can freewheel? Also, is there a specific torque on the bolts to give it the slip range you need?. I am only familiar with the type with springs, your seems to have a torsion/compression plate of some sort.

 

[boomer1025]

The clutch is bouncing back and forth ( left/right) and after time causing the bolt to break.
I would guess there is some wear in the coupler on the clutch and maybe on the the gearbox shaft were the bolt goes thru.

 

[Gord Baker]

The clutch is bouncing back and forth ( left/right) and after time causing the bolt to break.
I would guess there is some wear in the coupler on the clutch and maybe on the the gearbox shaft were the bolt goes thru.

sounds like the Bearings on the pinion shaft are gone

 

[Zork]

** Rephrased for clarity** So if you loosen the bolts around the metal clutch plates, will the inner clutch disk rotate independently from the front and rear plate and freewheel?

 

[IXLR8]

Seems to me somewhere in these 19 pages the OP said he put in a longer bolt and hasn't had the issue since.

 

[SPYDERLK]

Seems to me somewhere in these 19 pages the OP said he put in a longer bolt and hasn't had the issue since.

Yes, he did. And, I think, said he would update with events. -- Its been a while; no news, good news? ... Probably.

 

[ning]

Yes, he did. And, I think, said he would update with events. -- Its been a while; no news, good news? ... Probably.

 

[SPYDERLK]

View attachment 4094092

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[jmc]

Seems to me somewhere in these 19 pages the OP said he put in a longer bolt and hasn't had the issue since.

Yep. And from post #3 of the 189 posts so far:

"(Ideally, the unthreaded section would span both sides of the shear circle.)"