I have a deck raising issue I need help with. 2013 Toro MX5060 Timecutter, 50". Last fall I noticed sometimes when I pull back on the lever to raise the deck it only goes so far, to around the 3 position -- like something is blocking it. Then later it would work normally. I forgot about it till I pulled the mower out today. I figured maybe a stick or something got underneath and was blocking the deck from raising fully. I have many sticks and trees. I examined and saw no stick. I did notice that there was a spot on one of the brass pieces that showed some rubbing. I think its called a Bracket Hanger, part # Toro 119-3494. See attached diagram. I think its part # 2. The part signs of significant rubbing against the frame of the mower. When I raise the deck sometimes the top of the bracket hits the frame and stops. Other times it raises as it should. [NOTE: At least this is the best way I can describe it. At 79 its not as easy to get down there as it use to be]. Assuming I'm correct in this why would the bracket be stopping against the frame when I'm raising the deck ?? And other times it doesn't??