Item Affected: SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
Date Announced: 01/04/1976
Description of Recall:
Conequence:
Action Need To Fix It:
Notes: KENWORTH CAMPAIGN NO N/A. PETERBILT CAMPAIGN NO 276A. POSSIBILITY THAT CHECKVALVE BETWEEN THE SECOND AND THIRD TANK OF THE AIR SYSTEM IS A SINGLE CHECKVALVE INSTEAD OF A DOUBLE CHECK VALVE AS SHOULD BE EMPLOYED. IF THIS CONDITIONEXISTS AND THE PLUMBING TO THE PARKING BRAKES MAY BE SO DIRECTED AS TONOTPROVIDE A BACK-UP AIR SYSTEM AND THUS FAIL TO COMPLY WITH FEDERAL MOTOR VEHICLESAFETY STANDARD 121. (CORRECT BY INSPECTING AND INSTALLING DOUBLE CHECK VALVEAND REDIRECTING PLUMBING TO MEET STANDARD 121).