1974 MACK U RECALL - #78V171000
RECALL FOR STEERING : LINKAGES : KNUCKLE : SPINDLE : ARM
DEFICIENCIES, IN THE FORM OF FORGING LAPS, CRACKS AND EXCESSIVE DECARBURIZATION DURING HEAT TREATMENT, EXIST IN THE STEERING KNUCKLES. STRESSES IMPOSED WITH INTEGRAL HYDRAULIC POWER STEERING MAY LEAD TO A FAILURE IN THE AREA OF THE STEERING ARM ATTACHING BOSS. THIS TYPE OF FAILURE WOULD CAUSE LOSS OF STEERING CONTROL.
Information provided by the National Highway Traffic Safety Administration.
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| Vehicle |
1974 MACK U |
|
| Manufacturer |
MACK TRUCKS, INCORPORATED |
| Manufactured between |
1/1/1900 - 1/1/1900 |
| Recalled on |
10/12/1979 |
| Influenced by |
MACK TRUCKS, INCORPORATED |
| Owners Notified on |
8/10/1979 |
| # Affected |
2,100 |
| Recalled for |
STEERING:LINKAGES:KNUCKLE:SPINDLE:ARM |
|
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| Description |
DEFICIENCIES, IN THE FORM OF FORGING LAPS, CRACKS AND EXCESSIVE DECARBURIZATION DURING HEAT TREATMENT, EXIST IN THE STEERING KNUCKLES. STRESSES IMPOSED WITH INTEGRAL HYDRAULIC POWER STEERING MAY LEAD TO A FAILURE IN THE AREA OF THE STEERING ARM ATTACHING BOSS. THIS TYPE OF FAILURE WOULD CAUSE LOSS OF STEERING CONTROL. |
| Consequences |
|
| Corrective action |
DEALER WILL INSPECT AND, IF NECESSARY, REPLACE THE LEFT STEERING KNUCKLE WITH AN IMPROVED TYPE OF KNUCKLE. |
| Notes |
VEHICLE DESCRIPTION: TRUCK TRACTORS.SYSTEM: STEERING; STEERING KNUCKLE.CONSEQUENCES OF DEFECT: LOSS OF STEERING CONTROL COULD CAUSE A VEHICLEACCIDENT. |
| See also |
1974 MACK U Recall for ENGINE AND ENGINE COOLING, COOLING SYSTEM, FAN
1974 MACK U Recall for SERVICE BRAKES, AIR, ANTILOCK, CONTROL UNIT/MODULE
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