Mack Mb 1975

Model Mb made in 1975 by Mack got 4 recalls. There were some recalls concerningservice brakes, air, steering and suspension.

Mb year 1975

Recalls

Model 1975

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
SERVICE BRAKES, AIR - ANTILOCK - CONTROL UNIT/MODULE
78V068000	MACK TRUCKS, INCORPORATED	from 10/01/1974 to 03/01/1976	V (Vehicle)	9700	09/01/1978	ODI	MACK TRUCKS, INC	04/04/1978	10/12/1979
Defect Summary	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.
Consequence Summary
Corrective Summary	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.
SERVICE BRAKES, AIR - SUPPLY - HOSES, LINES/PIPING, AND FITTINGS
75V192000	MACK TRUCKS, INCORPORATED		V (Vehicle)	1200	02/20/1976	MFR	MACK TRUCKS, INC	10/31/1975	10/12/1979
Defect Summary
Consequence Summary
Corrective Summary
Notes	Mack campaign no n/a.trucks with dual brake treadle valve piping sept.1974and mar.31, 1975.possibility that the primary and secondary air supplylines may have been connected in reverse at the dual brake treadle valve.thereversing of these supply lines does not in itself, affect vehicle braking ifboth the primary and secondary air supply systems have normal operating airpressure.however, in the event of loss of air pressure in either the primaryor secondary system, neither the primary nor secondary service brakes wouldfunction when applied.in this event, it would require manual application ofthe emergency spring brake to stop vehicle.(correct by inspecting andrerouting air supply piping as required to correct system).
STEERING - LINKAGES - KNUCKLE - SPINDLE - ARM
78V172000	MACK TRUCKS, INCORPORATED		V (Vehicle)	13800	02/22/1979	MFR	MACK TRUCKS, INC	08/08/1978	10/12/1979
Defect Summary	The existing cross steering arms may have insufficient fatigue life in the neck area. this is near the boss for the cross steering tube ball joint connection. failure of either of the cross steering levers could lead to loss of steering control of the right front wheel.
Consequence Summary
Corrective Summary	The dealer will inspect and, if necessary, install cross steering arms of improved design and greater strength.
Notes	Vehicle description: truck tractors.system: steering; steering arm.consequences of defect: loss of steering control could lead to loss of vehiclecontrol and an accident.
SUSPENSION - REAR - SPRINGS - LEAF SPRING ASSEMBLY - LEAF
76V004000	MACK TRUCKS, INCORPORATED		V (Vehicle)	54	02/23/1976	MFR	MACK TRUCKS, INC	01/13/1976	10/12/1979
Defect Summary
Consequence Summary
Corrective Summary
Notes	Mack campaign no sc071.trucks equipped with swtl-56 series rear axle.possibility that the rear suspension was assembled with an incorrect trunnionthat has a radiused spring seat, creating a line of contact between the springseat and the spring itself, subjecting these components to high stressconcentrations.if this condition exists it could ultimately lead to prematurespring failure, and permit axle assembly dislocation that could result in lossof vehicle control without warning to the driver, with possible vehicle crash.(correct by inspecting and installing specified spring trunnions thatincorporate flatspring seats).