Commercial Vehicle Safety Alliance

Date d’inscription	18 septembre 2009
Numéro de l’enjeu	09-045-VEH
Nom	Luke Loy
Organisme	Federal Motor Carrier Safety Administration (FMCSA)
Adresse	1200 New Jersey Avenue, SEWashington, DC, 20590United StatesVoir sur la carte (s’ouvre dans un nouvel onglet)
Téléphone	202-366-0676
Courriel	[email protected]
Comité	Comité des véhicules
État	Fermé
Résumé de l’enjeu	Autoriser l'utilisation de l'inspection PBBT au lieu de la mesure de la longueur de course lors d'une inspection de niveau I ou de niveau V.
Justification ou besoin	Les véhicules munis de freins à disque ou les véhicules à faible garde au sol ne permettent pas à l'inspecteur d'effectuer les mesures physiques de la longueur de la course des freins.
Demande d’action	Autoriser l'utilisation des résultats des tests de freinage PBBT à la place des mesures physiques de la course des freins à air lors d'une inspection de niveau I ou V. Une consultation avec le ministère des Transports du Tennessee a abouti à la proposition ci-jointe de modification de la procédure de niveau I. Il est prévu de modifier également la procédure de niveau V une fois la modification de la procédure de niveau I approuvée. Voir la pièce jointe.
Mesures prises par le comité	The request was intended to reduce duplication of effort. It was clarified that all other brake components will still be inspected per the applicable inspection procedure if the PBBT is used. The issue was tabled at the spring meeting in order to allow the Associate Advisory Committee to provide their feedback. After clarification of a couple of their concerns they were supportive of the amended procedure. The brake manufacturers, went on record as not in support of the change. They still felt that there was value in measuring stroke travel. They did not have enough data to support the decision. Concerns were raised in regard to the vehicle being inspected with a PBBT and a decal being issued when stroke is not measured and then being re-inspected and a brake found to be out of adjustment. The representatives from the jurisdictions in the meeting that are currently using PBBT to do brake inspections did not have an issue with making the amendment to the procedure. They indicated that normally if they see a problem at a wheel end, they will inspect it thoroughly. It was also made perfectly clear that by making this amendment, it in no way would disallow an inspector from doing pushrod stroke meausurements during a Level I when a PBBT is used if the inspector deemed it still necessary. The amendment would affect 3 steps in both the Level I and Level V procedure. The following note additions were presented as follows: Step 3: GREET AND PREPARE DRIVER If available, conduct a Performance Based Brake Test (PBBT) Note: Refer to the North American Standard Inspection Procedure for Performance-Based Brake Testing (PBBT). Step 28: INSPECT STEERING AXLE(S) Drum (Cam-Type Brakes) Note: The Marking and Measuring Of Pushrod Travel Is Not Required If A Performance Based Brake Test (PBBT) Has Been Completed Air Disc Brakes (Exposed Pushrods) Note: The Marking and Measuring Of Pushrod Travel Is Not Required If A Performance Based Brake Test (PBBT) Has Been Completed Step 31: PREPARE THE VEHICLE AND CHECK BRAKE ADJUSTMENT Measure Pushrod Travel (All Brakes) (If Applicable) Note: The Marking and Measuring Of Pushrod Travel Is Not Required If A Performance-Based Brake Test (PBBT) Has Been Completed. The Level V Inspection Procedure Steps 1, 16 and 18 would be amended in the same format. This would also require a change to Operational Policy 5 for Brake Measurements. It currently states: BRAKE MEASUREMENTS It shall be the policy of CVSA to record on inspection forms all brake measurements during North American Standard Level I and Level V Inspections. If voted through by Executive Committee the policy will have to be amended to address that if a PBBT is used the Level I or V inspection report will not have brake measurements recorded.

Date d’inscription

18 septembre 2009

Numéro de l’enjeu

09-045-VEH

Nom

Luke Loy

Organisme

Federal Motor Carrier Safety Administration (FMCSA)

Adresse

1200 New Jersey Avenue, SEWashington, DC, 20590United StatesVoir sur la carte

Téléphone

202-366-0676

Courriel

[email protected]

Comité

Comité des véhicules

État

Fermé

Résumé de l’enjeu

Autoriser l'utilisation de l'inspection PBBT au lieu de la mesure de la longueur de course lors d'une inspection de niveau I ou de niveau V.

Justification ou besoin

Les véhicules munis de freins à disque ou les véhicules à faible garde au sol ne permettent pas à l'inspecteur d'effectuer les mesures physiques de la longueur de la course des freins.

Demande d’action

Autoriser l'utilisation des résultats des tests de freinage PBBT à la place des mesures physiques de la course des freins à air lors d'une inspection de niveau I ou V. Une consultation avec le ministère des Transports du Tennessee a abouti à la proposition ci-jointe de modification de la procédure de niveau I. Il est prévu de modifier également la procédure de niveau V une fois la modification de la procédure de niveau I approuvée. Voir la pièce jointe.

Mesures prises par le comité

The request was intended to reduce duplication of effort. It was clarified that all other brake components will still be inspected per the applicable inspection procedure if the PBBT is used. The issue was tabled at the spring meeting in order to allow the Associate Advisory Committee to provide their feedback. After clarification of a couple of their concerns they were supportive of the amended procedure.

The brake manufacturers, went on record as not in support of the change. They still felt that there was value in measuring stroke travel. They did not have enough data to support the decision.

Concerns were raised in regard to the vehicle being inspected with a PBBT and a decal being issued when stroke is not measured and then being re-inspected and a brake found to be out of adjustment. The representatives from the jurisdictions in the meeting that are currently using PBBT to do brake inspections did not have an issue with making the amendment to the procedure. They indicated that normally if they see a problem at a wheel end, they will inspect it thoroughly. It was also made perfectly clear that by making this amendment, it in no way would disallow an inspector from doing pushrod stroke meausurements during a Level I when a PBBT is used if the inspector deemed it still necessary. The amendment would affect 3 steps in both the Level I and Level V procedure. The following note additions were presented as follows:

Step 3: GREET AND PREPARE DRIVER

If available, conduct a Performance Based Brake Test (PBBT) Note: Refer to the North American Standard Inspection Procedure for Performance-Based Brake Testing (PBBT).

Step 28: INSPECT STEERING AXLE(S)

Drum (Cam-Type Brakes)

Note: The Marking and Measuring Of Pushrod Travel Is Not Required If A Performance Based Brake Test (PBBT) Has Been Completed Air Disc Brakes (Exposed Pushrods)

Note: The Marking and Measuring Of Pushrod Travel Is Not Required If A Performance Based Brake Test (PBBT) Has Been Completed

Step 31: PREPARE THE VEHICLE AND CHECK BRAKE ADJUSTMENT

Measure Pushrod Travel (All Brakes) (If Applicable)

Note: The Marking and Measuring Of Pushrod Travel Is Not Required If A Performance-Based Brake Test (PBBT) Has Been Completed.

The Level V Inspection Procedure Steps 1, 16 and 18 would be amended in the same format. This would also require a change to Operational Policy 5 for Brake Measurements. It currently states:

BRAKE MEASUREMENTS It shall be the policy of CVSA to record on inspection forms all brake measurements during North American Standard Level I and Level V Inspections.

If voted through by Executive Committee the policy will have to be amended to address that if a PBBT is used the Level I or V inspection report will not have brake measurements recorded.

méthodes d’inspection de niveau I et de niveau V - Utilisation des valeurs PBBT au lieu de la mesure de la longueur de course du frein