You would be better off starting your snowblower at idle and then increasing the RPM. In theory, disengaging the snowblower PTO can be done at any speed, since the disengaging doesn't put any stress on the mechanical moving parts, only engaging does that. Engaging the snowblower at 2000 RPM puts a lot of stress on the bearings, and especially the chain.
You might say that the "roll pin" aged out. I used to have a source for stainless steel roll pins, but as with a lot of US-based suppliers, they went out of business because of the "inexpensive" (cheap) imports. I am glad that I still have a good supply of the standard spring steel roll pins (American-made) that we used to use in the large truck equipment business that I was involved in about 40 years ago. Don't know if you know this, however, there are special punches specifically designed for driving them out and installing them.
When I searched roll pin the first thing that came up were the ads for punches and tools. Thank you, sir! BFDow
Actually, there is quite a lot of roll pins used in drivelines on implements and attachments. Particularly in the foreign brands.
I can see using a roll pin for retention when there is a key or spline that carries the torque load, but using a small piece of rolled spring steel for shaft/yoke/bearing retention and torque load, I repeat is a piss poor design.
McMaster-Carr provides some values for maximum load to shear (double shear) roll pins of various sizes. A 3/16" roll pin can withstand up to 4,100 lb in shear.
I took mine apart this afternoon. Also a roll pin. This whole thread is helpful confirmation! Now I gotta go get the punches to get it out, it seems really jammed in there. Will probs replace it with a bolt and locking nut.
