</font><font color="blue" class="small">( The hyrdo sticks ( pedal stays in the position you place it when using the loader, the drive wheels will keep spinning, and to disengage you must press the reverse pedal or hit the brakes. )</font>
Joe, you can do a search using "hydro pedal" in the NH Owning/Operating forums (1 year or all posts) and get a wealth of information ranging from how to lubricate that pedal mechanism to adjusting or increasing the return spring size.
I've also found that the problem is far more prevalent when your engine rpm is below 2,000 and you put the tractor under a heavy load.