Mack Mb 1974

Model Mb made in 1974 by Mack got 4 recalls. There were some recalls concerningservice brakes, air, steering and structure.

Mb year 1974

Recalls

Model 1974

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.
STEERING - LINKAGES - KNUCKLE - SPINDLE - ARM
78V171000	MACK TRUCKS, INCORPORATED		V (Vehicle)	2100	08/10/1979	MFR	MACK TRUCKS, INC	08/08/1978	10/12/1979
Defect Summary	Deficiencies, in the form of forging laps, cracks and excessive decarburization during heat treatment, exist in the steering knuckles. stresses imposed with integral hydraulic power steering may lead to a failure in the area of the steering arm attaching boss. this type of failure would cause loss of steering control.
Consequence Summary
Corrective Summary	Dealer will inspect and, if necessary, replace the left steering knuckle with an improved type of knuckle.
Notes	Vehicle description: truck tractors.system: steering; steering knuckle.consequences of defect: loss of steering control could cause a vehicleaccident.
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.
STRUCTURE
74V101000	MACK TRUCKS, INCORPORATED		V (Vehicle)	48	08/27/1974	MFR	MACK TRUCKS, INC	06/24/1974	10/12/1979
Defect Summary
Consequence Summary
Corrective Summary
Notes	Mack truck campaign no sco#50.fire apparatus equipped with cab lift cylinder.possibility that the velocity fuse in the cab hydraulic lift cylinder mayfail.this fuse is incorporated in the lift cylinder to prevent the cabfalling unchecked in the event of certain failures, such as a broken hydraulicfluid hose.(correct by inspecting and replacing with new cylinder wherenecessary).