I don't think it is pneumatic, I believe it is an electric (mechanical) timer.
My plan is to use a standard Ice Cube relay and a digital timed delay relay, with a new switch, terminal bar, and box (and new wire ans stacons too). I don't think the motor has more than say 1/2 hp, so a contactor would be unneccesary, wouldn't it? The limit switches are in bad shape too, very corroded.
Anyway, thanks again!
-Virgil Residential/Commercial Inspector 5 Star Inspections Member IAEI
