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Front #17

ABTH 103.6.4

List in order the steps to stop on an ascending grade, with the slack stretched, using the throttle manipulation method.

  1. When the train stalls, fully apply the independent brake.
  2. Reduce the throttle to IDLE.
  3. Gradually reduce the throttle one notch at a time.
  4. Maintain a slack-stretched condition and allow the ascending grade to slow the train.
  5. Apply train brakes as the train stops, or just before it stops if immediate movement after stopping is not anticipated.
Back #17
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ABTH 103.6.4


Answer: 1. Gradually reduce the throttle one notch at a time. 2. Maintain a slack-stretched condition and allow the ascending grade to slow the train. 3. When the train stalls, fully apply the independent brake. 4. Reduce the throttle to IDLE. 5. Apply train brakes as the train stops, or just before it stops if immediate movement after stopping is not anticipated.
Feedback:
Stopping on an ascending grade requires fully applying the independent brake while the throttle is still in a power position. The train could roll back if the throttle is reduced to Idle before applying the independent brake.