1974 MACK HMM RECALL - #78V068000
RECALL FOR SERVICE BRAKES, AIR : ANTILOCK : CONTROL UNIT/MODULE
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.
Information provided by the National Highway Traffic Safety Administration.
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| Vehicle |
1974 MACK HMM |
|
| Manufacturer |
MACK TRUCKS, INCORPORATED |
| Manufactured between |
10/1/1974 - 3/1/1976 |
| Recalled on |
10/12/1979 |
| Influenced by |
OFFICE OF DEFECTS INVESTIGATION |
| Owners Notified on |
9/1/1978 |
| # Affected |
9,700 |
| Recalled for |
SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE |
|
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| Description |
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. |
| Consequences |
|
| Corrective action |
THE DEALER WILL INSPECT AND, IF NECESSARY, REPLACE THE ANTI-WHEEL LOCK CONTROLLER WITHOUT CHARGE TO OWNER. |
| 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. |
| See also |
1974 MACK HMM Recall for ENGINE AND ENGINE COOLING, COOLING SYSTEM, FAN
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