NHTSA Recall 84V035000
NHTSA Campaign Id 84V035000; Date: Mar. 23, 1984
Recalled Vehicles:
1982 Mack MH; 1983 Mack MH
Component: Service Brakes, Air:supply:check Valve
Manufactured by: Mack Trucks, Incorporated
Affected Units:: 850
Recall Summary:
A manufacturing error resulted in the installation of carbon steel springs in some dual-compartment air reservoir check valves. Carbon steel springs are inadequate for this application because they are subject to severe corrosion and subsequent failure of the check valve.
How to Fix:
The carbon steel spring will be replaced with a stainless steel one.
Recall Notes:
Vehicle description: heavy trucks. System: service brakes; dual compartment air reservoir check valve. Consequences of defect: if this check valve failure were combined with asevered line in the primary air system, complete loss of brakes and possiblevehicle crash could occur.
Also see: