Service brakes, air › Supply › Check valve

Vehicles in this recall

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).