NHTSA Campaign Id 68V115000; Date: Nov. 8, 1968
9999 Mack Mack
Component: Service Brakes, Air:supply:quick Release Valve
Manufactured by: Mack Trucks, Incorporated
Affected Units:: 142
Possibility incorrect diaphragm installed on berg spring brake assemblies. Incorrect spring delays application of spring brakes for a few seconds. (correct by inspecting and replacing where necessary. )
Date Owners notified by Manufacturer: Nov 6, 1968
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