[Richard]

Absolutely. Look at the top of the valve body where the air operated shaft enters. You will find two screws. Remove them, and the top, along with the shaft and the "paddle" will come out. It can take some force. You can simply order the rubber insert for the paddle from Dupree. They get old and cranky, and begin to stick. Chlorine (bleach) in the water does that to rubber. I carry spares, of this item. Seems mine requires replacement about every five years.

Pay attention to the orientation of the paddle when it comes out. The insert wedge is asymmetric, and must be reinstalled in the body the way it came out. You will know if you got it backwards because the valve will not shut completely. No worries, pull the top off and rotate the shaft 180 degress. Lube the insert with silicone when reinstalling.