1977 MACK HMM RECALL - #77V173000
RECALL FOR ENGINE AND ENGINE COOLING : COOLING SYSTEM : FAN
THE FLEX BLADE FANS ON THE INVOLVED VEHICLES MAY DEVELOP CRACKS IN THE LAMINATED STIFFENER AS A RESULT OF FATIGUE DURING OPERATION. IF SUCH A CONDITION EXISTS AND THE CRACKS GO UNDETECTED, CONTINUED OPERATION COULD CAUSE PIECES OF THE STIFFENER TO BREAK OFF.
Information provided by the National Highway Traffic Safety Administration.
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| Vehicle |
1977 MACK HMM |
|
| Manufacturer |
MACK TRUCKS, INCORPORATED |
| Manufactured between |
1/1/1900 - 1/1/1900 |
| Recalled on |
10/12/1979 |
| Influenced by |
OFFICE OF DEFECTS INVESTIGATION |
| Owners Notified on |
3/23/1978 |
| # Affected |
48,000 |
| Recalled for |
ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN |
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| Description |
THE FLEX BLADE FANS ON THE INVOLVED VEHICLES MAY DEVELOP CRACKS IN THE LAMINATED STIFFENER AS A RESULT OF FATIGUE DURING OPERATION. IF SUCH A CONDITION EXISTS AND THE CRACKS GO UNDETECTED, CONTINUED OPERATION COULD CAUSE PIECES OF THE STIFFENER TO BREAK OFF. |
| Consequences |
|
| Corrective action |
DEALER WILL REPLACE THE ORIGINAL FAN WITH A STEEL FIXED BLADE FAN, FREE OF CHARGE. |
| Notes |
VEHICLE DESCRIPTION: TRUCKS EQUIPPED WITH SIX-CYLINDER ENGINES.SYSTEM: ENGINE COOLING; FAN.CONSEQUENCES OF DEFECT: BROKEN PIECES CAN BE PROPELLED OUTSIDE OF THE FANSHROUD AND WILL PRESENT AN IMMEDIATE DANGER AND POSSIBLE INJURY TO PERSONSSTANDING NEARBY.NOTE: PRIOR TO CORRECTION, VEHICLE SHOULD NOT BE SERVICED WITH THE HOOD RAISEDAND THE ENGINE RUNNING. |
| See also |
1977 MACK HMM Recall for SEAT BELTS, FRONT, ANCHORAGE
1977 MACK HMM Recall for SEAT BELTS, FRONT, ANCHORAGE
1977 MACK HMM Recall for SUSPENSION, REAR, SPRINGS, LEAF SPRING ASSEMBLY, HANGER/BRACKET
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