One man crew, engineer only.
Train separates about halfway back, goes into emergency.
Follow radio rule about such event, radio dispatcher and inform.
Secure the train and locomotive per rule.
Walk back to the break, close the anglecock on the front portion, and assess the damage.
Secure the rear portion of the train by rule, do not close the anglecock on that part, you would bottle the air and risking the rear portion running away
Walk back to the locomotive, get the proper knuckle, let’s be nice and say it was the light one, and carry it back to the break.
You replace the broken knuckle.
Now, the rear and the front portion of the train are separated by, let’s say, a car length…how do you couple up the train if you, the only employee, are at the break?
Walk back to the locomotive, release the securement, recover your air and back up guessing the distance, (feeling for the bump) and there it is…secure the locomotive and train by rule, walk back, lace air hoses back up…now, do you trust the joint /coupling made?
If so, release securement on the rear of the train, hope the EOT plays along and the coupling really made, walk back to the head end, and release the securement and go.
Two man crew, engineer and conductor.
Train separates halfway back goes into emergency
Follow radio rule about such an event, radio dispatcher and inform.
Conductor hops off walks back, finds broken knuckle and torn air hose, radios engineer which type knuckle.
Engineer tosses off E type knuckle, knuckle pin and hose plus wrench; light a fussee, sticks fussee in knuckle.
While engineer is doing that, conductor secures rear portion of train, closes anglecock on only the fr