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1993 Dorsey Dfvpd Service Brakes, Air Recall 93V151000
NHTSA: Action Number: N/A Service Bulletin Number: 93V151000
- Report Date:
Sep 15, 1993
Service Brakes, Air
- Potential Units Affected:
Dorsey Trailers, Inc.
Summary: Improper routing of the air brake hoses from the brake valves to the brake chambers of the air operated s-cam brakes can cause the hoses to chafe or be cut on the trailer frame.
Consequence: Service brake hose chafing or cutting can cause reductionor loss of service brakes without prior warning to the driver. A vehicle crashcan occur as a result of the malfunctioning service brakes. Also, if a springbrake hose is cut, the spring brake drag occurs, which reduces the effectivenessof the service brakes, and causes brake components to overheat to the point ofigniting the undercoating and burning the trailer. This can also cause wheellockup which could result in a vehicle crash.
Remedy: Chaffed brake hoses will be replaced, and the brake hose routing and brake chamber installation will be modified to eliminate the brake hose chaffing problem.
Notes: System: brakes; air brakes; non-metallic hoses. Vehicle description: 28 foot long van trailer built on a single axle drop frameundercarriage. Note: if you trailer is presented to an authorized dealer on an agreed uponservice date and the remedy is not provided within a reasonable time and freeof charge or the remedy does not correct the defect, please contact dorseytrailers at 1-205-897-5711 or 1-404-438-9595. Also, contact the nationalhighway traffic safety administration's auto safety hotline at 1-800-424-9393.