Update : The deck is off the tractor, cleaned using water hose and soft nylon bristle brush . In the picture the dark grey areas are where the graphite coating did not wear off . The yellow is where it did wear off . There is a little dirt still stuck , but nothing that a pressure washer won't remove . I'm not going to recoat it for next year just to see how long it will last .
I've been using the restored deck for a couple of weeks so far and it appears to be doing a great job . My only concern is that there is quite a bit of grass adhering to the exit opening, so I have to assume that it's sticking to the bottom of the deck as well . I'll continue cutting grass for a few more weeks, pull the deck and see what's happening .
I must have it adjusted properly as the grass looks great after being mowed . Nice and smooth with no uneven areas . I went over all the grease fittings, giving them a quick shot of grease before using it the first time . Runs quiet, which is good, as it was somewhat noisy when operating before the restoration . I'll continue to keep everyone informed as time progresses .