23-007-VEH: OOSC, Parte II, Artículo 1. Sistema de frenos, d. Freno de emergencia del remolque

Fecha de registro	8 de febrero de 2023
Número de asunto	23-007-VEH
Nombre	Eric Sundby
Agencia	MN STATE PATROL
Dirección	1110 Centre Pointe Curve, Suite 410Mendota Heights, Minnesota, 55120United StatesVer en el mapa (se abre en una pestaña nueva)
Teléfono	12183960866
Correo electrónico	[email protected]
Comité	Comité de Vehículos
Estado	Cerrado
Resumen del asunto	En nuestro estado, revisamos y activamos los dispositivos de seguridad contra fugas. Uno de nuestros agentes perdió un caso judicial debido a la redacción del procedimiento de inspección. Además, contamos con una ley estatal que exige el uso de estos dispositivos.
Justificación o necesidad	Siga las instrucciones de la norma NAS-B; la diapositiva de PowerPoint indica que se deben seguir las políticas y los procedimientos de las agencias al probar el dispositivo de desconexión.
Solicitud de acción	Elimine de la página 10 de la Inspección de Frenos Hidráulicos y Remolques la frase (No active el dispositivo de desconexión durante la inspección). Deje (En algunos casos, el dispositivo de desconexión en estos remolques es una función de aplicación única). Agregue después, siga las políticas y procedimientos de su agencia si activa el dispositivo de desconexión durante su inspección.
Medidas adoptadas por el comité	Whether to pull the breakaway device, or not, on an electric brake vehicle has been a topic of debate for many years. Committee members have been in agreement that no one has seen the single use device but have been hesitant to remove the guidance from the hydraulic brake bulletin. Whether to pull the device has then been left up to the individual inspector or jurisdiction. This has led to a lack of uniformity in the enforcement of the breakaway brakes on these trailers. Committee members agreed that there needs to be a uniform standard for all jurisdictions to follow. The hydraulic brake bulletin tells inspectors not to pull the breakaway while the NAS Part B course leaves it up to the jurisdiction. The question was asked as to whether or not data could be obtained on how many violations were written for a defective breakaway system. This data is not available since 393.43(d) will not be specific to electric brakes. A concern was voiced about the possibility of breaking parts when the pin is pulled. The one-time use devices have not been seen and the multi-use devices should be tested during pre-trip inspections. If the proper procedures are followed, there should not be a concern of breaking the device. One committee member stated he specifically asked a manufacturer about pulling the breakaway device because drivers had told him the manufacturers recommend not testing it. The manufacturer’s response was that they are designed to be tested so testing the device roadside is not a problem. The Committee agreed to amend the bulletin to conduct the breakaway device test. Committee members had further discussion that the proper procedure needs to be followed when conducting the test. The amendment included the proper procedure contained in the NAS Part B course, for testing electric breakaway brakes to be added into the Inspection Bulletin 2012-04.

Fecha de registro

8 de febrero de 2023

Número de asunto

23-007-VEH

Nombre

Eric Sundby

Agencia

MN STATE PATROL

Dirección

1110 Centre Pointe Curve, Suite 410Mendota Heights, Minnesota, 55120United StatesVer en el mapa

Teléfono

12183960866

Correo electrónico

[email protected]

Comité

Comité de Vehículos

Estado

Cerrado

Resumen del asunto

En nuestro estado, revisamos y activamos los dispositivos de seguridad contra fugas. Uno de nuestros agentes perdió un caso judicial debido a la redacción del procedimiento de inspección. Además, contamos con una ley estatal que exige el uso de estos dispositivos.

Justificación o necesidad

Siga las instrucciones de la norma NAS-B; la diapositiva de PowerPoint indica que se deben seguir las políticas y los procedimientos de las agencias al probar el dispositivo de desconexión.

Solicitud de acción

Elimine de la página 10 de la Inspección de Frenos Hidráulicos y Remolques la frase (No active el dispositivo de desconexión durante la inspección). Deje (En algunos casos, el dispositivo de desconexión en estos remolques es una función de aplicación única). Agregue después, siga las políticas y procedimientos de su agencia si activa el dispositivo de desconexión durante su inspección.

Medidas adoptadas por el comité

Whether to pull the breakaway device, or not, on an electric brake vehicle has been a topic of debate for many years. Committee members have been in agreement that no one has seen the single use device but have been hesitant to remove the guidance from the hydraulic brake bulletin. Whether to pull the device has then been left up to the individual inspector or jurisdiction. This has led to a lack of uniformity in the enforcement of the breakaway brakes on these trailers. Committee members agreed that there needs to be a uniform standard for all jurisdictions to follow. The hydraulic brake bulletin tells inspectors not to pull the breakaway while the NAS Part B course leaves it up to the jurisdiction. The question was asked as to whether or not data could be obtained on how many violations were written for a defective breakaway system. This data is not available since 393.43(d) will not be specific to electric brakes. A concern was voiced about the possibility of breaking parts when the pin is pulled. The one-time use devices have not been seen and the multi-use devices should be tested during pre-trip inspections. If the proper procedures are followed, there should not be a concern of breaking the device. One committee member stated he specifically asked a manufacturer about pulling the breakaway device because drivers had told him the manufacturers recommend not testing it. The manufacturer’s response was that they are designed to be tested so testing the device roadside is not a problem.

The Committee agreed to amend the bulletin to conduct the breakaway device test. Committee members had further discussion that the proper procedure needs to be followed when conducting the test. The amendment included the proper procedure contained in the NAS Part B course, for testing electric breakaway brakes to be added into the Inspection Bulletin 2012-04.