Having dealt with shear bolts on farm equipment tighten them up. Don't leave play in them. Don't go crazy tighting them but good and snug. I'd say lesviplay in them is why you keep shearing them.
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Brian
April 1979 1200 Quietline 44A deck 1988 1211 customized into a 1288 with a K301AQS 38C deck and a 1864 54” deck . Snow blades 42" and 54" . Brinly disk, brinly plow a cultivator and a $5 brinly yard rake!
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