David Gladwin

Here's a picture of my system. Here the servo is in the normal gear down position, valve open but the servo is not contacting the micro switch, triggering a slight override by mixing gear to gear opens the air micro switch feeding standby air to the selector valve. In this layout I have used a separate tank (you could use the brake tank) and fill valve plus a guage. The normal supply line is the blue line, the standby air is T'ed into it but can't pressurise the main supply tank because of the one way valve in the line. This system is going into all my large jets.

Regards,

David.