Check the hanger pins for wear before you paint it.]
You may want to replace them if badly worn and you plan on mowing with it.
Also the "pickle fork" that hangs from the rockshaft.
David and Steve - several years ago I believe I got the following from Mr. Plow (engineer extrodinare) because of past issues I had with decks not being level when raised, and because of decks not raising high enough. I never did use this, and to me it is a bit complicated, but wanted to throw it out there.