Do as very few things as possible. Oil through the air input, occasionally lube the 3way shaft (and put it back EXACTLY AS IT WAS!!!), and very rarely unscrew the output hose barb from the pneumatics regulator and put about half a drop of oil in it. If your bolt has orings rather than delrin then occasionally lube it--for that and 3way orings I use Shocker grease, Dow Corning 33.