After the normal air-running, engineer must move the regulating handle to the position corresponding to the pressure which has been set by the pressure reducing valve (pos. no. 28) when the speed of the main engine is more than the air cut speed.

• 在正常的空气运转后，轮机员必须移动调节手柄到相应的压力的位置，其压力已由压力减压阀28设定，当主机的转速已经高于空气切断转速。