1) Put the engine
into Neutral, with Forward being the next direction of travel.
2) Set the Throttle
to about 8 VAC.
3) Slowly press the
whistle control until the bell just begins to ring, and hold it there.
4) After about 3
seconds, if you listen closely, you will hear an air release (WHOOSH!). When you hear this sound, you may release
the whistle control. The bell will
still be ringing.
5) Press and release
the whistle control to turn off the bell.
6) Interrupt power to
switch the engine into Forward.
While the engine continues to run in Forward, the Squealing Brakes will be active. When you next enter Neutral, the Freight Yard Sounds or Passenger Station Announcements will begin.