How about some pics of the blower mounted on the tractor. I guess I would start checking the unit over real close. You have got loose fasteners or worn out holes. My 451 I am going through right now had about the same symptoms as yours as far as moving around alot. I found the bracket on the bottom of the blower unit to be very loose. The bolt holes for the arms that attach to the side of the blower were wallowed out real bad. Between the two issues my blower could be moved back and forth 3-4". Never had an issue with the belt coming off though. Sounds to me like there is something else going on if it is shredding belts.
__________________
1641, 1541, 682 with 18hp command engine and hydraulics from a 782. 1872 with a power angle blade.
|