Wow, something that I can actually help with on the forum!!!
Waterloo is right about the blade, pushing it right to left will also tilt the blade, a must for cutting v-ditches and the like.
Think of the decelarator as a backward gas peddle. There will be a throttle lever, you will move it to set the rpm's at a constant. The peddle when stepped on, reduces the rpm's, push all the way down, idle. Like a backwards accelarator on your car. Main use is in shifting from forward to reverse, just like a car you would not do this shifting with the gas peddle pushed to the floor, does no good for a tranny. Plus of course as you can use this to reduce rpm's from a little to alot, it can also control your speed. The whole idea is that you dont have to mess with the throttle lever, and of course holding down an accelarator peddle all day would wear on you, so it works backwards.
