Head over to your local Cat dealer and get some grade 9 bolts, then just keep a few spare gear boxes, pto shafts and other parts on the shelf ! :) So much for the smart @ss comments, definitely meant to shear, best to use some consideration on what type is called for, not sure what manufacturer your is, might be possible to dig up some literature, then again might not be, had no luck finding any for my older Rhino SE-6. Not sure, but seems rotary cutters have a lot of similarities between them, this Rhino has left hand threaded round shoulder bolts to attach the blades, that also shear off when something jambs up the works, did that once, left all the parts under the deck for me to find. It's also got the shear bolt on the p.t.o. shaft, which I'm not sure of the grade, was on it before I owned it. All this coming from someone who is dumb enough to lose the tail wheel ( darned pin came out !) and run it over with the cutter on the return pass ! Did that last saturday, well it was getting dark.... did a number on the tail wheel, I think it bent a blade, there is a vibration, flip er over, off with the stump jumper pan again, check everything out, it's been a good one, and I took good care of it kept er greased, gear oil changed, everything tight, no leaks, probably one of the dumbest things I've done lately.
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