NHTSA Campaign Id 75V050000; Date: Mar. 28, 1975
1974 Mack F795st; 1974 Mack R685st; 1974 Mack R685t
Component: Service Brakes, Air:antilock:control Unit/module
Manufactured by: Mack Trucks, Incorporated
Affected Units:: 38
Mack campaign no n/a. Truck/anti wheel lock brake control. Oct 1974 thru Nov. 26, 1974. Possibility of the anti-lock system failure. The computer modulecontains a number of pin connections which may be defective and could cause aloss of wheel anti-lock control without warning to the driver. Such a failureof the system would not cause the "anti-lock inoperative" warning light tofunction. (correct by inspecting and replacing computer module with improveddesign where necessary).
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