1976 MACK HMM Recalls (4)

Campaign:
76V118000 on 10/11/1979
Component:
Power train:driveline:universal joint
Affected:
105
Notes:
Mack truck campaign no sco #77.trucks equipped with rockwell internationalfront drive axle fds-1807 series universal.possibility that a material defectexists in the bearing caps of the cardan joint assembly at wheel ends of axleassembly.this condition could cause failure of the cardan joint and result inloss of steering control without prior warning to driver, with possible vehiclecrash.(correct by inspecting and replacing cardan joints).heavy truck.

Campaign:
78V068000 on 10/11/1979
Component:
Service brakes, air:antilock:control unit/module
Manufactured:
09/30/1974 - 02/29/1976
Affected:
9,700
Defect:
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.
Correction:
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.

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:
77V204000 on 10/11/1979
Component:
Seat belts:front:anchorage
Affected:
11
Defect:
The involved vehicles do not conform to federal motor vehicle safety standard nos. 207, "seating systems", and 210, "seat belt assembly anchorages". vehicles equipped with viking t-bar seats have the seat belt anchorage located under the seat. the tether belt ruptured when subjected to the forces required in the safety test.
Correction:
Dealer will relocate the tether belt floor anchorage to correct the problem, without charge to owner.
Notes:
Vehicle description: heavy trucks equipped with viking t-bar seats.system: interior; seat & shoulder belt anchorage.consequences of defect: in the event of a vehicle accident, the seat belt maynot provide adequate restraint to the wearer and serious personal injury couldresult.

Home | Privacy