Yosemite Sam is right. Sounds like the clutch isn't fully disengaging at times. Something may just need lubed or adjusted. Hopefully that is all it needs. The manual is in the technical section.
And
__________________
Travis
1993 Cub Cadet 2064
1988 Cub Cadet 2072
1980 IH Cub Cadet 782 w/CH20
1966 IH Cub Cadet 102 w/K301
1961 IH Cub Cadet O
1967 IH Cub Cadet 102 & 122
JD 2155 w/ 175 loader