Posted 5/20/2010 23:42 (#1207950 - in reply to #1207672) Subject: RE: 854 rogator servo valve EDM
NE ND
I replaced mine two days ago. Exact same issue word for word. If you have the round black cover you have the Dickey John. The replacement is a Raven head for $237. It was not hard to do, 1-2 hrs. It now works on rate 1 and 2.
854 rogator servo valve EDM
