Air Brakes and Train Handling Rules - Alaska Railroad

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67 Car Equipment and Components67.9.1 Auxiliary ReservoirThe auxiliary reservoir provides compressed air for all service braking.67.9.2 Emergency ReservoirThe emergency reservoir provides an additional supply of compressedair during an emergency brake application. This additionalair to the brake cylinder increases brake cylinder pressure above fullservice by approximately 20 percent.67.10 Brake CylinderThe brake cylinder is a cast metal cylinder with a piston connected torods and levers. When brake cylinder pressure is present, the pistonmoves out and applies the brakes by forcing the brake shoes againstthe wheel.When brake cylinder pressure is released, a return spring in the brakecylinder moves the piston back into the brake cylinder, releasing thebrakes.67.11 Retaining ValvesThe retaining valve on each car controls brake cylinder pressureexhaust. All freight cars have retaining valves located at the “B” endof the car or at the side near the control valve.The retaining valve can be positioned to function as follows during abrake release:• Allow the exhaust of brake cylinder pressure to atmosphere• Retain brake cylinder pressure while the system is recharged67.11.1 Three-Position Retaining ValveThe three-position retaining valve includes these positions (seeFigure 67-F):67-10 ARRC Air Brakes and Train Handling Manual June 1, 1996
67 Car Equipment and ComponentsExhaustHigh PressureSlow DirectFigure 67-F. Three-Position Retaining Valve.DIRECT EXHAUST (EX). Exhausts all brake cylinder pressure.Handle is turned down.HIGH PRESSURE (HP). Exhausts brake cylinder pressure to20 psi. Handle is 45 degrees below horizontal.June 1, 1996 ARRC Air Brakes and Train Handling Manual 67-11
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Air BrakesandTrain HandlingRules
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Glossary61.5 Yard Movement Test ...
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Glossary63.6.2 Inspecting For Leaka
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Glossary66 Locomotive Equipment and
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Glossary68 EOT Telemetry Devices...
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60 Locomotive Engineer Responsibili
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60 Locomotive Engineer Responsibili
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61 AIR BRAKE TESTS61 Air Brake Test
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61.3 Initial Terminal Air Brake Tes
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61 Air Brake Tests5. Wait 60 second
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61 Air Brake Testscompleted satisfa
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61.7 Application and Release Test61
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61 Air Brake Tests3. Once the train
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61 Air Brake Tests7. Cut the automa
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62 Operating Locomotive Equipment62
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62 Operating Locomotive EquipmentFi
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62 Operating Locomotive Equipment3.
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62.11.2 Restoring Operating Control
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63 Train Equipment and Operation•
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63 Train Equipment and OperationFig
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63 Train Equipment and Operation63.
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63 Train Equipment and Operation•
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64 Train Handling64.2.1 Slowing or
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64 Train Handling3. When a train br
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64 Train HandlingA. Understanding D
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64 Train Handling3. Limit the locom
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68 EOT Telemetry Devices68.8.6 Chec
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68 EOT Telemetry Devices• Operati
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68 EOT Telemetry Devices68.9 Digita
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68 EOT Telemetry DevicesEOT Unit Tr
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68 EOT Telemetry DevicesLCU Trouble
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GlossaryAmp MeterThe instrument tha
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GlossaryInverse Gradient: The tempo
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GlossaryDrawbar ForcesThe longitudi
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GlossaryHand BrakeAn assortment of
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GlossaryLocomotive Cab Unit (LCU)A
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GlossaryQuick ServiceThe local vent
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GlossaryStretch BrakingSlowing or s
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INDEXIndexAA-1 reduction relay valv
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IndexEelectronic alertness device 6
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IndexMminimum continuous speed 64-1
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IndexTTOX AIR ACTUATOR single wheel
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Air Brakes and Train Handling Rules - Alaska Railroad

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