Air Brakes and Train Handling Rules - Alaska Railroad

64 Train HandlingF. Emergency Brake Applications On 2001, 2002, and 2500Series LocomotivesWhen 2001 locomotives, 2002 locomotives, or 2500 series locomotivesare operated as lead or single locomotives and an emergencybrake application occurs (that was not made by the engineer), theautomatic brake application will automatically reset itself and beginreleasing the train brakes.During such an emergency brake application, move the automaticbrake valve handle quickly to EMERGENCY. This will prevent thetrain brakes from releasing and will reduce the locomotive load backto idle.64.3.2 Dynamic BrakeTo allow for electrical current decay and to prevent a surge of dynamicbraking, follow these dynamic braking rules:1. Pause for 10 seconds before changing from power to dynamicbraking.2. When operating over a railroad crossing at grade (diamond):a. Reduce the dynamic braking level before the train reachesthe crossing.b. Wait until the entire locomotive passes over the crossingbefore increasing the dynamic braking level.3. If the wheel slip light or brake warning light comes on:a. Reduce the brake handle position and dynamic brake retardationuntil the light goes out.b. If the light does not go out, stop the train and inspect thelocomotive.4. If train speed exceeds 10 MPH, do not supplement the dynamicbrake with the locomotive brakes.5. To stop while operating at speeds below 10 MPH, apply thelocomotive brakes as necessary to prevent slack run out.June 1, 1996 ARRC Air Brakes and Train Handling Manual 64-5