1972 MACK CF Recalls (3)
- Campaign:
- 77V173000 on 10/11/1979
- Component:
- Engine and engine cooling:cooling system:fan
- Affected:
- 48,000
- Defect:
- 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.
- Correction:
- 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.
- Campaign:
- 75V143000 on 10/11/1979
- Component:
- Service brakes, air:supply:hoses, lines/piping, and fittings
- Affected:
- 363
- Notes:
- Mack campaign no sc065.model fire chassis may 17, 1972 thru june 23, 1975.possibility of interference between the front axle brake chamber inlet and theshock absorber brackets.under certain operating conditions and with the frontwheels turned either to the extreme left or right direction, the air inletfitting could contact the front axle shock absorber upper bracket and causeinlet fitting to break.this would result in loss of braking on the affectedwheel, and could affect steering stability during brake application.(correctby inspecting and relocating fitting to preclude contact with shock absorberbracket).
- Campaign:
- 91V070000 on 05/14/1991
- Component:
- Steering:linkages
- Manufactured:
- 11/30/1967 - 11/30/1990
- Affected:
- 3,673
- Defect:
- Stresses imposed on the lever during turning maneuvers and/or impact incidents, such as would be caused by curbs or road surface irregularity, reduce the life expectancy of the part. the steering lever may crack and eventually the stresses could cause the steering lever to break.
- Consequence:
- A broken steering lever will cause loss of steeringcontrol without prior warning which may result in a vehicle crash.
- Correction:
- Replace the defective steering arms.
- Notes:
- System: steering levers.vehicle description: cf model fire chassis with gross axle weight ratings of12,000 pounds or greater and equipped with power steering.note: the specific mack axles affected are: fa532, faf532, fafw537, fafw5372,fafw13.5, faw538, faw14.3, fa604, fa6042, faw616, faw618, faw617, and faw20.