GT-242 Drive Belt Help

[yellowsocks93]

Hi everyone. Do you know how to adjust a drive belt on a JD gt 242 mower. I just had the drive belt replaced thinking it would fix this problem. I can hear the belt make noise when starting out or climbing hills. Any help or comments welcome. Thanks.

Nick
990 turf, 430 FEL, 25A flail, 272 RFM