Mack Dm 1973
Model Dm made in 1973 by Mack got 4 recalls. There were some recalls concerningengine and engine cooling, exterior lighting and service brakes, air.
Model 1973
Recalls
| Campaign | Manufacturer | Manufacturing date | Type | # of units affected | Date Owner notified Mfg | Recall Initiated by | Manufacturers of recalled vehicles/products | Report Recieved Date | Record Creation Date | Regulation Part Number | FMVSS Number | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ENGINE AND ENGINE COOLING - COOLING SYSTEM - FAN | ||||||||||||||||
| 77V173000 | MACK TRUCKS, INCORPORATED | V (Vehicle) | 48000 | 03/23/1978 | ODI | MACK TRUCKS, INC | 10/12/1977 | 10/12/1979 | ||||||||
| Defect Summary | 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. | |||||||||||||||
| Consequence Summary | ||||||||||||||||
| Corrective Summary | 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. | |||||||||||||||
| EXTERIOR LIGHTING - HEADLIGHTS - SWITCH | ||||||||||||||||
| 74V227000 | MACK TRUCKS, INCORPORATED | V (Vehicle) | 1023 | 02/07/1975 | MFR | MACK TRUCKS, INC | 11/21/1974 | 10/12/1979 | ||||||||
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| Notes | Mack campaign no 55.mfg'd jan.1, 1973 thru aug.14, 1974.possibilitythat vehicles equipped with a tractor protection valve an interference couldoccur between the stop lamp switch and the head lamp switch could create ashort circuit that would interrupt head lamp operation.(correct by inspectingand providing additional clearance between switches where necessary). | |||||||||||||||
| SERVICE BRAKES, AIR | ||||||||||||||||
| 73V102000 | MACK TRUCKS, INCORPORATED | from 01/01/1971 to 03/01/1973 | V (Vehicle) | 2481 | 08/24/1973 | MFR | MACK TRUCKS, INC | 05/04/1973 | 10/12/1979 | |||||||
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| Notes | Equipped with anchorlok spring brake chambers.manf'd jan.1971 thru march1973.trucks.possibility that the clamp ringbolts on the anchorlok springbrake chamber were incorrectly positioned at time of installation.in thisposition the end of the bolt may contact rear axle housing during brakeactuation.due to bracket deflection, the clamp ring or bolt may failpermitting the spring brake section to separate from the service chamber.(correct by inspecting and repositioning clamp and bolts). | |||||||||||||||
| SUSPENSION - MULTIPLE AXLE | ||||||||||||||||
| 75V118000 | MACK TRUCKS, INCORPORATED | V (Vehicle) | 414 | 11/11/1975 | ODI | MACK TRUCKS, INC | 06/23/1975 | 10/12/1979 | ||||||||
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| Notes | Mack trucks campaign no sc060.trucks mfg'd 1967 thru jan.31, 1973.possibility that the suspension trunnion brackets may develop cracks.if suchcondition exists and cracks are not detected, continued operation couldultimately lead to trunnion tube separation from the trunnion and permit axleassembly dislocation.failure of the trunnion bracket could result in loss ofvehicle control without warning to the driver.(correct by inspecting andreplacing brackets where necessary). | |||||||||||||||