Brake Cutout: Difference between revisions

Latest revision as of 17:26, 17 March 2025

Brake cutout is a valve most motorized rail vehicles come equipped with, that cuts their train brake control valve from the rest of the train. This valve is typically located under the train brake control device, in the vehicle's cab .

The brake cutout valves are there to ensure that, in a train with many motorized vehicles, only one train brake control device is enabled. If there were multiple, conflicts would occur, potentially resulting in dysfunctional brakes and a disaster.

When the train brake is cut out on a vehicle, its control device is no longer functional. However, the vehicle is still able to brake, as controlled by another vehicle's train brake.

The cutout valve only affects the train brake control device, but other brake types, such as independent , can still be used freely.

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-Most motorized rail vehicles are equipped with a special valve that isolates their brake control device from the rest of the train. This valve is called brake cutout, and is typically located underneath the train brake control device, in the cab of the vehicle.
+Brake cutout is a valve most {{pll|Rail Vehicle Types|motorized rail vehicles}} come equipped with, that cuts their {{pll|Train Brake|train brake control valve}} from the rest of the train. This valve is typically located under the train brake control device, in the vehicle's {{pll|Rail Vehicle Types|cab}}.
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+The brake cutout valves are there to ensure that, in a train with many motorized vehicles, only one train brake control device is enabled. If there were multiple, {{pll|Braking Overview|conflicts}} would occur, potentially resulting in dysfunctional brakes and a disaster.
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-When having their cutout valve closed, vehicles are still able to brake as part of a train, but their control device is no longer functional. Being able to close the cutout valves is useful when a train has a mix of self-lapping and non-self-lapping valves, requiring specific vehicles to be isolated to resolve the valve conflict.
+When the train brake is cut out on a vehicle, its control device is no longer functional. However, the vehicle is still able to brake, as controlled by another vehicle's train brake.
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-The cutout valve only affects the train brake control device, and when it is closed the other brake types can be used normally.
+The cutout valve only affects the train brake control device, but other brake types, such as {{pll|Independent Brake|independent}}, can still be used freely.
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-{{See also|Air Brake System Overview|Lapping|Cylinder Leaks|Monitoring|Train Brake|Independent Brake|Brake Shoes}}
 [[Category:Air Brake System|3]]