06-004-VEH: Recomendaciones de seguridad H-06-6 y -7 de la NTSB para ajustadores automáticos de holgura.

Fecha de registro	3 de marzo de 2006
Número de asunto	06-004-VEH
Nombre	Rex Railsback
Agencia	Kansas Highway Patrol
Dirección	1220 S. EnterpriseOlathe, KS, 66061United StatesVer en el mapa (se abre en una pestaña nueva)
Teléfono	(785) 256-5046
Fax	(913) 782-0429
Correo electrónico	[email protected]
Comité	Comité de Vehículos
Estado	Cerrado
Resumen del asunto	Es necesario informar a los miembros y a los inspectores de carretera sobre los peligros de ajustar manualmente la holgura del sistema de suspensión. Se les debe informar que una holgura incorrecta constituye dos infracciones, no una. Una vez alcanzado el 20%, todas las infracciones que contribuyan a ese porcentaje deberán ser reparadas.
Justificación o necesidad	Consulte las recomendaciones de seguridad NTSB n.° H-06-6 y -7.
Solicitud de acción	Emitir un boletín de inspección y/o modificar el texto o, al menos, agregar una nota al OOSC indicando que una holgura automática que no se ajusta automáticamente es una infracción y un componente de freno roto, y cuenta para el criterio del 20%.
Medidas adoptadas por el comité	The Vehicle Committee agreed on the following advisory that will be a printed on the ASPEN report when a brake adjustment violation is found on a vehicle which is required to be equipped with a self-adjusting brake system. ADVISORY: This vehicle has been identified to have brake adjustment violations. 49 CFR Section 393.53 requires that a self-adjusting brake system be equipped on this vehicle. A qualified service technician needs to determine why the defective brake has excessive stroke and make the appropriate repairs. Simply re-adjusting a self-adjusting brake adjuster, or replacing it, does not guarantee that the problem is corrected. The problem may exist in the foundation brake system. By certifying this inspection report you have indicated that this vehicle now has a properly functioning self-adjusting brake adjustment system. The Vehicle Committee also discussed the proper method for noting violations involving self-adjusting brake systems, i.e, a self-adjusting brake adjuster has excessive stroke, is a violation of 393.47(e) only, 393.53 only, or both. The Vehicle Committee approved the following recommendation: When a vehicle required to be equipped with a self-adjusting brake system is found to have a brake with excessive stroke, a violation of 393.53 shall be noted on the inspection report in addition to any 393.47(e) violation(s). This will only be noted as a single violation of 393.53 per vehicle/unit whether one or more brakes are found to have excessive stroke. This advises the carrier of the 393.53 violation and that they are accountable for the repairs. The advisory box noted above will appear on the ASPEN report also.

Fecha de registro

3 de marzo de 2006

Número de asunto

06-004-VEH

Nombre

Rex Railsback

Agencia

Kansas Highway Patrol

Dirección

1220 S. EnterpriseOlathe, KS, 66061United StatesVer en el mapa

Teléfono

(785) 256-5046

Fax

(913) 782-0429

Correo electrónico

[email protected]

Comité

Comité de Vehículos

Estado

Cerrado

Resumen del asunto

Es necesario informar a los miembros y a los inspectores de carretera sobre los peligros de ajustar manualmente la holgura del sistema de suspensión. Se les debe informar que una holgura incorrecta constituye dos infracciones, no una. Una vez alcanzado el 20%, todas las infracciones que contribuyan a ese porcentaje deberán ser reparadas.

Justificación o necesidad

Consulte las recomendaciones de seguridad NTSB n.° H-06-6 y -7.

Solicitud de acción

Emitir un boletín de inspección y/o modificar el texto o, al menos, agregar una nota al OOSC indicando que una holgura automática que no se ajusta automáticamente es una infracción y un componente de freno roto, y cuenta para el criterio del 20%.

Medidas adoptadas por el comité

The Vehicle Committee agreed on the following advisory that will be a printed on the ASPEN report when a brake adjustment violation is found on a vehicle which is required to be equipped with a self-adjusting brake system.

ADVISORY: This vehicle has been identified to have brake adjustment violations. 49 CFR Section 393.53 requires that a self-adjusting brake system be equipped on this vehicle. A qualified service technician needs to determine why the defective brake has excessive stroke and make the appropriate repairs. Simply re-adjusting a self-adjusting brake adjuster, or replacing it, does not guarantee that the problem is corrected. The problem may exist in the foundation brake system. By certifying this inspection report you have indicated that this vehicle now has a properly functioning self-adjusting brake adjustment system.

The Vehicle Committee also discussed the proper method for noting violations involving self-adjusting brake systems, i.e, a self-adjusting brake adjuster has excessive stroke, is a violation of 393.47(e) only, 393.53 only, or both. The Vehicle Committee approved the following recommendation:

When a vehicle required to be equipped with a self-adjusting brake system is found to have a brake with excessive stroke, a violation of 393.53 shall be noted on the inspection report in addition to any 393.47(e) violation(s). This will only be noted as a single violation of 393.53 per vehicle/unit whether one or more brakes are found to have excessive stroke. This advises the carrier of the 393.53 violation and that they are accountable for the repairs.

The advisory box noted above will appear on the ASPEN report also.