changing drive belt sperry new holland 456 cutter

[ancheta]

Does anyone know how to change the drive belt on a sperry new holland 456 side bar cutter? I can't see anywhere to loosen the tension. One hook-tensioner bolt on the pto u-bolt pulley end, but that doesn't change the tension -- nothing else seem to have play in it.

HELP

 

[RickB]

The hook shaped bolt sets the belt tension. Back it off, loosen the pivot bolt(s) on the jackshaft bearing support then move the drive pulley towards the driven pulley to slack the belt or install the new one. Reverse the process to set the belt tension.

 

[ancheta]

perfect, Rick -- thanks for the advice! looked at that bolt and the box, but it sure looked like it was welded -- hearing it should be the adjustor was all we needed -- worked perfectly! Thanks again for the help -- I am sure it is going to cut a whole lot better now... Did a pretty good job before, but really bugged me that belt was loose and looked worn. New cutter, and now that we have the new belt on next week should go a whole lot smoother.

thanks again for your help!