
Mulching blades tend to slip on the belt even more than std blades since there's so much more debris trapped under the deck at any one time, so don't worry about how they mount. The belt and pulley will both look like the drive belt and sprockets on a Harley. The other thing to look at is the spindle pulley itself where the belt wraps around it, as was also mentioned. Like said above, if you belt that runs from spindle to spindle has "teeth" you have a timed deck (providing someone didn't use the wrong belt). Two blade mowers are a bit different, and even some of them can have blades that are offset from one side to the other, with the right blade being the one that is normally toward the rear of the deck. Since that blade is farther forward by a noticable degree, they can make them all overlap to eliminate stripping between the blades, and not hit each other when pointed directly at each other end to end.


Most three blade mowers have the middle blade offset toward the front of the deck in relation to the outer two blades. Like I said, I've tried them every which way on both two and three blade mowers, and there's absolutely no difference in cut quality. Click to expand.Mulching blades tend to slip on the belt even more than std blades since there's so much more debris trapped under the deck at any one time, so don't worry about how they mount.
