- Summary
- Certain freightliner school bus chassis, heavy trucks, and thomas built school buses manufactured between July 2002 and July 3, 2007, equipped with bendix SR-7 spring brake control valves. The parker scv brass 90 degree single check valves (scv) which attach to the supply port of a bendix SR-7 spring brake modulating valve can break apart. Pieces of the parker scv can become lodged inside the SR-7 spring brake modulating valve, potentially causing either leakage out of the SR-7 valve or preventing air from properly exhausting from the SR-7 valve. Also, due to a manufacturing defect in the internal rubber check valve inside the SR-7 spring brake modulating valves, the valves can become deformed and not seat properly.
- Consequence
- These conditions could either result in leakage and cause a delay in the application of the spring brake without warning or possibly lead to unintended vehicle rollaway or brake drag which could result in a vehicle crash, personal injury, or death.
- Remedy
- Freightliner will notify owners and repair the vehicles free of charge. The recall began on January 11, 2008 to freightliner, sterling, and freightliner custom chassis owners; to thomas built bus owners on February 1, 2008. Owners can contact freightliner at 1-800-547-0712.