What did you do in your garage today..?

Why not start with the same shear pin and higher rpm (or lower travel speed)? Is the shear pin supposed to be a bolt or is it supposed to be a smooth shank through the shear plane? How is shear pin fit through the hole? If it's too loose and rattling around, I find they break more easily.
Apparently it's supposed to be a bolt, but I'll do some research. The PTO shaft has 2 flat surfaces with a hole and the bolt hold them together. It's has been my experience that any play (smaller diameter bolt) means quick failure.
 
Today was compressor day. My 30 yr old quincy QTS-5 was slow to build air ( 0 - 100 psi 4min 22 sec) pulled the head, inspected all components and replaced the valve plate. (One reed was broken off)...cylinders still have the cross hatch and the rod, crank bearings and piston rings and pins show NO ware. Build time now...0-100psi 2min 8 sec.
These compressors are not cheap but last a lifetime with proper maintenance
 

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My suspicion is that I'm running it at too low an RPM, allowing both snow to gather in front of the auger, as well as in the chute loading up the unit causing the shear to fail.

Yeah, send more Rippums to the blower. You want to throw the snow with the horsepower, not push into it and lob it with torque, and it's the torque that's going to snap shear pins.

And yeah, make sure the pins/bolts/whatever are snug - if there's any lash at all it'll beat the bejesus out of it which will also break them.
 
Today was compressor day. My 30 yr old quincy QTS-5 was slow to build air ( 0 - 100 psi 4min 22 sec) pulled the head, inspected all components and replaced the valve plate. (One reed was broken off)...cylinders still have the cross hatch and the rod, crank bearings and piston rings and pins show NO ware. Build time now...0-100psi 2min 8 sec.
These compressors are not cheap but last a lifetime with proper maintenance
Where do you look/find parts?
 
Yeah, send more Rippums to the blower. You want to throw the snow with the horsepower, not push into it and lob it with torque, and it's the torque that's going to snap shear pins.

And yeah, make sure the pins/bolts/whatever are snug - if there's any lash at all it'll beat the bejesus out of it which will also break them.
Yup. Revin' the heck out of it did the trick. Uses a lot more fuel though, but so be it. Nicer not to have to scramble around in the snow.
 
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