NHTSA Recall 78V068000
NHTSA Campaign Id 78V068000; Date: Apr. 4, 1978
Recalled Vehicles:
1974 Mack DM; 1975 Mack DM; 1976 Mack DM; 1974 Mack DMM; 1975 Mack DMM; 1976 Mack DMM; 1974 Mack F; 1975 Mack F; 1976 Mack F; 1974 Mack HMM; 1975 Mack HMM; 1976 Mack HMM; 1974 Mack MB; 1975 Mack MB; 1976 Mack MB; 1974 Mack R; 1975 Mack R; 1976 Mack R; 1974 Mack RD; 1975 Mack RD; 1976 Mack RD; 1974 Mack RL; 1975 Mack RL; 1976 Mack RL; 1974 Mack RM; 1975 Mack RM; 1976 Mack RM; 1974 Mack RS; 1975 Mack RS; 1976 Mack RS; 1974 Mack U; 1975 Mack U; 1976 Mack U; 1974 Mack WL; 1975 Mack WL; 1976 Mack WL; 1974 Mack WS; 1975 Mack WS; 1976 Mack WS
Component: Service Brakes, Air:antilock:control Unit/module
Manufactured by: Mack Trucks, Incorporated
Affected Units:: 9,700
Recall Summary:
An axle "no brake" condition could result from an eaton controller internal electrical malfunction. This condition may cause the anti-wheel lock valve solenoid to be continuously energized and prevent the brakes from being applied on one of the axles. As a result, the anti-wheel lock warning lamp is not activated.
How to Fix:
The dealer will inspect and, if necessary, replace the anti-wheel lock controller without charge to owner.
Recall Notes:
Vehicle description: trucks equipped with eaton 21 anti-lock controllers. System: service brakes; anti-wheel lock solenoid. Consequences of defect: loss of brakes on any one axle will result in extendedvehicle stopping distances, which could lead to a vehicle accident.
Date Owners notified by Manufacturer: Sep 1, 1978
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