the belt adjustment on this MTD is actually up by the handle bar.
you will notice a ferrule and a nut on the cable where it attaches to the lever.loosen the nut and then spin up the ferrule.
you may have to make a few adjustments to get it just right.
there is also the same adjustment for the friction disc.
just dont go to far or the belts will snap,2 3/8 for the impeller an 1 for the drive.
later chris
craftsman 10/28 snowblower with tracks husky 372xpg chainsaw sachs dolmar bc212 bushsaw mondo trimmer monster tractor with trailer cheep wheelbarro and couple shovels and a partridge in a pear tree