Mack Ms300t 1981

Model Ms300t made in 1981 by Mack got 4 recalls. There were some recalls concerningexterior lighting, power train and service brakes, hydraulic.

Ms300t year 1981

Recalls

Model 1981

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
EXTERIOR LIGHTING - HEADLIGHTS
82V054000	MACK TRUCKS, INCORPORATED	from 07/01/1979 to 05/01/1982	V (Vehicle)	5700	11/24/1982	MFR	MACK TRUCKS, INC	05/24/1982	05/27/1982
Defect Summary	The circuit wiring on these vehicles is arranged so that a short circuit in the rear taillights will also result in loss of power to the headlamps. for safety reasons the lighting system wiring should be independent.
Consequence Summary
Corrective Summary	Vehicles will have an automatic reset circuit breaker installed to ensure continued headlamp illumination in the event of a short in other lighting systems.
Notes	Vehicle description: trucks.system: lighting; head lamp wiring.consequences of defect: simultaneous loss of both taillights and headlampsduring night driving could result in a head-on or rear-end collision.
POWER TRAIN - DRIVELINE
81V089000	MACK TRUCKS, INCORPORATED	from 11/01/1980 to 06/01/1981	V (Vehicle)	500	01/25/1982	MFR	MACK TRUCKS, INC	07/14/1981	07/17/1981
Defect Summary	Holes drilled in the rear axle yokes to balance them could cause a failure of the yoke.
Consequence Summary
Corrective Summary	Vehicles will be inspected and all defective yokes will be replaced with yokes without holes.
Notes	Vehicle description: trucks.system: suspension; rear axle yoke.consequences of defect: the yoke could fail without warning during vehicleoperation, possibly causing loss of vehicle control and an accident. also, thefailure could cause shrapnel to be propelled outward from the vehicle, injuringanyone within close proximity.note: the failure is most likely to occur when the vehicle is first started orwhile driving at moderate or high speeds in a heavy torque condition.
POWER TRAIN - MANUAL TRANSMISSION
83V102000	MACK TRUCKS, INCORPORATED	from 11/01/1980 to 07/01/1981	V (Vehicle)	565	01/03/1984	MFR	MACK TRUCKS, INC	09/27/1983	10/21/1983
Defect Summary	The yoke of the transmission propeller shaft may lack required strength due to erroneous counterbore operation in which 10 millimeters of extra material may have been cut. this condition could lead to fracture of the yoke in service.
Consequence Summary
Corrective Summary	All affected parts will be inspected and replaced, if necessary.
Notes	Vehicle description: trucks.system: power train; transmission propeller shaft yoke.consequences of defect: during engine operation at heavy throttle, as invehcile starting, fragments of a fractured yoke could be propelled outward andcause injury to nearby persons.note: the fracture could also occur without warning during normal highwayoperation, resulting in loss of power at the driving wheels, difficulty inmaintaining vehicle control, and a possible accident.
SERVICE BRAKES, HYDRAULIC - SWITCHES - BRAKE LIGHT
81V032000	MACK TRUCKS, INCORPORATED	from 11/01/1980 to 02/01/1981	V (Vehicle)	150		MFR	MACK TRUCKS, INC	03/18/1981	04/08/1981
Defect Summary	On certain vehicles, the semi-trailer stop lights may not activate when hand control lever is activated.
Consequence Summary
Corrective Summary	After inspecting brake light system, a switch will be installed which will activate the trailer stop light when the hand control valve is used, if necessary.
Notes	Vehicle description: heavy trucks.system: lighting; rear brake lights, trailer stop lamp wiring.consequences of defect: rear-end collision could result due to failure oftrailer stop lamps. operater of vehicle to the rear would not be warned ofbraking action on affected vehicles.