Air Brakes and Train Handling Rules - Alaska Railroad

66 Locomotive Equipment and ComponentsThe two-position cutout valve has these positions:IN. Provides control of brake pipe pressure from the automatic brakevalve. Equalizing reservoir and brake pipe pressures will increasewhen the automatic brake valve is in RELEASE.OUT. Disconnects control of brake pipe pressure from the automaticbrake valve. Use this position when:• Not using the automatic brake valve to control brake pipepressure (trailing locomotives or locomotives hauleddead-in-train).• Conducting brake pipe leakage tests.66.2.2 Three-Position Cutout ValveOUTFRTPASS3 POSITIONFigure 66-D. Three-Position Cutout Valve.The three-position cutout valve has these positions:FRT. Provides control of brake pipe pressure from the automaticbrake valve. Equalizing reservoir and brake pipe pressures willincrease only when the automatic brake valve is in RELEASE.OUT. Disconnects control of brake pipe pressure from the automaticbrake valve. Use this position when:• Not using the automatic brake valve to control brake pipepressure (trailing locomotives or locomotives hauleddead-in-train).• Conducting brake pipe leakage tests.June 1, 1996 ARRC Air Brakes and Train Handling Manual 66-5