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.