Air starting system.
The startingsystem of the GW engine might look a bit complicated, but is relatively simple compaired to the reversingmechanism. Below is an isometric drawing of the system. The starting airvalve on each cylindercover is operated by a pushrod from the camshaft. The pushrod is normally kept free from the camshaft by a spring, it is the only rod on the Laboe U 995 engine which is not painted blue, originally it was not painted at all. When the main air startingvalve ( red wheel ) is opened pressureair is admitted to a chamber with piston ( slide) in the startingvalve on the cylindercover and forces the rod down against the springpressure to the camshaft. When the maneuvre startinghandle on the manuevrestand is put to start position, air is admitted to the cylinder startingvalve air chamber and that valve which is opened by the camshaft admit the air to the cylinder and the engine start turning by air. When the engine obtain sufficient revs. fuel is admitted to the fuelvalves and the engine is running. Then the startinghandle is put on run position, the main airvalve is shut the air is relieved and the starting air valve in the cylindercover is raised free from the camshaft by the spring.
Tore
