PTO shear bolt??

[Thunder Fish]

I recently re built my old snow blower(bearings/gears) and figured the lower PTO connection should be running a shear bolt so I put a Grade 2 5/16" x 3",I have gone through 2 so far not abusing it,there is only 1 shear bolt on the blower and that's for the auger,any thoughts on this please?

 

[GreensvilleJay]

It'd really help if you posted WHAT 'snowblower' model you have....

 

[North Idaho Wolfman]

Old blowers with heavier steel need heavier shear pins.
Just looking at your picture of the snowblower, it's probably going to need a grade 5 for the shear pins.
That's what mine runs and it's similar.

 

[Thunder Fish]

Very similar to this but a 60"

 

[Thunder Fish]

Old blowers with heavier steel need heavier shear pins.
Just looking at your picture of the snowblower, it's probably going to need a grade 5 for the shear pins.
That's what mine runs and it's similar.

Its running off of a geared 4 speed PTO that's my concern,thanks for the input

 

[North Idaho Wolfman]

Its running off of a geared 4 speed PTO that's my concern,thanks for the input

I run mine off of a L3450 so just slightly newer but similar gears in the Trans.
You should have no issues shearing a grade 5 bolt.

 

[UpNorthMI]

If you have gone through 2 so far at least you know that they shear and work. Unless this is a big issue and they are shearing for little to no reason, I would stay with the lower grade unless you conclude the current bolts are failing at the slightest issue.

Wolfman is much more qualified, my comment is just a gut feeling.