189. Q. If any of the pipes here enumerated breaks, will it in any way affect an application of the independent brake?
A. No; as the independent and automatic features are entirely separate from each other; that is, the automatic control valve is not brought into use when an independent application of the brake is made.
CONTROL VALVE DEFECTS
190. Q. If there is a blow at the control valve exhaust port when the brake is released, where would you look for the trouble?
A. This would indicate a leaky application valve, or a leak past the emergency valve.
191. Q. If there be a continuous blow at the control valve exhaust port when the brake is applied, where would you look for the trouble?
A. This would indicate leakage past the exhaust valve 7.
192. Q. If the locomotive brake released with the automatic brake valve in lap position, where is the trouble?
A. Would look for a leak in the control reservoir pipe or special release valve.
193. Q. If the brake remained applied in lap position, but released in release or holding position, where would you look for the trouble?