Air Brakes and Train Handling Rules - Alaska Railroad

64 Train Handling2. If the equalizing reservoir leaks and pressure maintaining isrequired for long distances, place the automatic brake valvecutout valve in PASSENGER, if equipped.When operating in PASSENGER, use extremecare. Any movement of the automaticbrake valve handle toward RELEASE willrelease the brakes throughout the train.64.12.2 Regulating Valve BrakingDo not use the regulating valve to brake the train if:• The brake pipe pressure maintaining feature is operative.or• The brake valve will maintain equalizing reservoir pressure inFRT or PASS.64.12.3 Using Retaining ValvesFollow these requirements for using retaining valves (retainers):1. Retaining valves are not necessary if the locomotive dynamicbrakes and train brakes are functioning properly. Use retainingvalves only when the train crew decides that the train cannot behandled safely in the normal manner.2. When retainers are necessary:a. Notify the train dispatcher immediately.b. Begin at the head end of the train and apply the minimumnumber of retainers in blocks of at least 10 cars.c. Apply retainers in the following positions:• Loaded cars—HP (high pressure) position64-36 ARRC Air Brakes and Train Handling Manual June 1, 1996