144. Q. If the main reservoir supply pipe to the distributing valve
breaks, what should be done?
A. Plug the pipe toward the main reservoir. The locomotive brake is
lost, but if the distributing valve is equipped with a quick action cap,
when an emergency application is made, the air coming from the brake
pipe, through the quick action cap, will apply the locomotive brake.
145. Q. If the application cylinder pipe breaks, what effect will it
have on the locomotive brake?
A. The locomotive brake cannot be applied with either automatic or
independent brake valve. By plugging the pipe toward the distributing
valve the automatic brake will be restored.
146. Q. If the distributing valve release pipe breaks, what will be the
effect?
A. The holding feature of the brake will be lost; that is, the
locomotive brake will release when the automatic brake valve is moved to
either release or holding position, the same as with the old G-6
equipment.
147. Q. If the release pipe is broken and not plugged, can the
independent brake be applied?
A. Yes, by placing the brake valve handle in quick-application position
the brake will apply, but there will be a waste of air through the
broken pipe, and the brake will release when the brake valve is returned
to lap position.
148. Q. If the brake cylinder pipe breaks, can the locomotive brake be
applied?
A. This depends on where the pipe breaks; if between the cut-out cock
and any one of the brake cylinders, close the cut-out cock to that
cylinder, and the other cylinders may be used. But if the pipe breaks at
the distributing valve, the locomotive brake will be lost.
149. Q. If the brake pipe connection to the distributing valve breaks,
what should be done?
A. Plug the end from the brake pipe; the locomotive brake must now be
released by placing the independent valve in release position.
150. Q. If the brake pipe connection to the distributing valve breaks
and is plugged, can the locomotive brake be operated?
A. The independent brake may be applied and released in the usual
manner, but the automatic brake will be lost for service braking.