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OOSC, Parte II, Artículos 11 y 13. Neumáticos y ruedas - Juego de neumáticos simples o dobles

Fecha de registro18 de diciembre de 2017
Número de asunto17-049-VEH
NombreKarl Mittlelstadt
AgenciaWisconsin State Patrol
Dirección4802 Sheboygan AveMadison, Wisconsin, 53705-2927United StatesVer en el mapa (se abre en una pestaña nueva)
Teléfono608-215-2804
Correo electrónico[email protected]
ComitéComité de Vehículos
EstadoCerrado
Resumen del asunto

Esta solicitud se realiza simplemente para crear conciencia y responder algunas preguntas que el inspector de carretera tenía durante la inspección. El objetivo es identificar estos problemas ANTES de llevar el remolque a la báscula para su inspección. Como se puede ver en las fotos, el inspector no identificó la reducción del ancho de los neumáticos y casi dejó caer todo el lado izquierdo del remolque en nuestra báscula de inspección.

Justificación o necesidad

The following conditions apply to all tires; however, when these conditions are found on a dual tire set, both tires must meet one or more of the conditions listed in item 11.b. (8) Bias Ply Tire: When more than one ply is exposed in the tread area and the exposed area of the top ply exceeds 2 square inches (12.9 sq cm) or damaged plies are evident in the sidewall up to 2 square inches (12.9 sq cm). 393.75(a)(1)) (9) Radial Ply Tire: When two or more plies are exposed in the tread area and the exposed area of the top ply exceeds 2 square inches (12.9 sq cm) or damaged cords are evident in the sidewall up to 2 square inches (12.9 sq cm). (393.75(a)(1)) (10) Presence of rubber coated cord or cured rubber plug in the sidewall. (396.3(a)(1)) (11) So worn that less than 1/32 inch (.8 mm) tread remains when measured in any two adjacent major tread grooves (typically any groove containing a tread wear indicator) at three separate locations around the circumference of the tire at least 8 inches (203.2 mm) apart. (393.75(c)) (9) Weight carried exceeds tire load limit. This includes overloaded tire resulting from low air pressure. (Load Limit - 393.75(f) or Inflation Pressure - 393.75(h)) • During the inspection the inspector identified unit 2 axle 1 left side had 2 or more plies exposed in the tread area and the exposed area of the top ply exceeded 2 square inches. Unit 2 axle 2 right side tire had less the 1/32” tread depth when measured on two adjacent major tread grooves at three separate locations around the circumference of the tire at least 8 inches apart. The Inspector viewed it as duals to give the carrier the benefit. GVWR of trailer was 15,000 pounds. It appears that only Econoline Trailers use the Multi-max suspension systems. See youtube video on functionality. https://www.youtube.com/watch?v=KxDMSmQNRYQ

Solicitud de acción

Ahora, las preguntas: 1. ¿Son ruedas simples o dobles a efectos de peso/límite de carga de los neumáticos? 2. ¿Se consideran ruedas simples o dobles en lo que respecta a la normativa OOSC, en relación con defectos? 3. El eje está unido a la ballesta y en cada extremo hay un conjunto de freno y una rueda. ¿Necesita cada extremo de la rueda un freno? (393.42)

Medidas adoptadas por el comité

Karl Mittelstadt called the manufacturer and asked if one side tire blew a tire, would the other side still drive down the road fine. The manufacturer stated that it is not recommended but they could drive still. The axle is quite ridged and with one tire missing the other wheel would not twist enough to hit the trailer. Comment that there is brakes at each wheel end and should be considered single tires. The direction from Portland was that it was single tires and the research from the manufacturer would not support or disagree with that thought. The consensus of the committee is that these are considered single wheels for OOSC and defects.

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