Birddog1650
New member
I have a John Deere 50 hp tractor and recently purchased a County Line (tractor supply brand) 5' rotary mower that sheered a couple of bolts where the rear U joint connects to the gear box shaft. I purchased a clutch for the shaft at gear box thinking that may help but it continues to sheer the bolt before the clutch at mower gear box. I was cutting grass which was not high and started the pto at low speed and gradually brought it up to 540 rpm. I never had that problem with the older Howze mower I had. Any thoughts?