OregonFarmer
New member
I've got a Befco H80 100 flail and it has been working great this spring - until today. It is hooked to my IH 674 2wd tractor and it's 62hp seem to do a great job spinning this flail through tall grass, blackberrries, brush, etc. I was mowing some 30" grass today and the flail drum stopped turning. After cleaning up the drum and putting the machine up on a concrete pad, removing the belt cover, I did some detective work, starting at the tractor. I discovered the PTO shaft on the tractor was turning, the drive shaft to the flail was turning, the grooved shaft that comes out of the gearbox was turning but the horizontal shaft and belt pulley that spins the drum was NOT turning. When I turn the belt pulley by hand (tractor off), it turns easily, belts, drum and all. In fact, even the tractor PTO shaft turns easily when I turn the pulley on the flail, either direction. This does not make sense to me.
Before I tear off the gearbox and take it apart to see if something is busted inside, I wanted to hear what you thought might be going on here, so fire away.
I thought perhaps there was a shear pin on the drive/PTO shaft that has sheared. Other mowers I have owned have such a pin, but there does not appear to be any visible shear pin on this Befco Flail.
Thoughts?
Before I tear off the gearbox and take it apart to see if something is busted inside, I wanted to hear what you thought might be going on here, so fire away.
I thought perhaps there was a shear pin on the drive/PTO shaft that has sheared. Other mowers I have owned have such a pin, but there does not appear to be any visible shear pin on this Befco Flail.
Thoughts?