Hello Mr. Tore,
Reviewing the text for:
GW Sequencing…
First you open the main starting air supply valve to admit starting air to the cylinder starting valves and the starting air manifold. Then you move the starting handle to start, on a direct reversible engine you pass the "umsteuer" maneuvering position; the run position and nothing happens. The run position is only the venting valve open the others shut. On the maneuvering position, the starting lever has to stay in reverse position in order to start the reversing process.
When the starting handle is in the start position, air is admitted to the top piston on the cylinder starting valves; pushing the rocker arms down to engage the rollers on the starting cams. On direct reversible engines the cams are selected by the ahead/astern handle and the engine start to run on air. When you obtain the proper revs you move the handle to "betrieb" or "run" the valves supplying air to the "umsteuer" mechanism and top of the cylinder starting valves are shut, and the vent valve on the air manifold opens and the spring under the top piston on the cylinder starting valve forces the piston up lifting the starting valve rollers from the camshaft.
Everything makes sense to me except the first paragraph, and the next to the last sentence -- "The run position is only the venting valve open the others shut." Could you clarify this sentence? What others shut?
Regards,
Don_