I know that the mower deck cuts off when you reverse as a safety function, but when you go forward again you can re-engage the PTO. About two months ago it started not re-engaging after a reverse. I could reach down and lift up on the reverse pedal or the forward pedal (backing it up) and the PTO would work again. Yesterday though I backed up a few times with no issues of re-engagement, but then after the last reverse the PTO just will not engage. Even drove it around for a couple of hundred yards, but still nothing. I think that it thinks that its still in reverse. Crawled under it and worked the linkage manually forward & reverse, but no go. Its only ever done thus after a reverse.