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1. Year:1974 Make:MACK Model:DM

   Manufacturer	Component Mfg	Component	Component	Description	Consequence	Corrective Action
   MACK TRUCKS, INC	MACK TRUCKS, INCORPORATED	SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE	19780404	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.		THE DEALER WILL INSPECT AND, IF NECESSARY, REPLACE THE ANTI-WHEEL LOCK CONTROLLER WITHOUT CHARGE TO OWNER.
   MACK TRUCKS, INC	MACK TRUCKS, INCORPORATED	SERVICE BRAKES, AIR:ANTILOCK:INTERCONNECTING ASSEMBLY(WIRING)	19751031
   MACK TRUCKS, INC	MACK TRUCKS, INCORPORATED	SERVICE BRAKES, AIR:SUPPLY:HOSES, LINES/PIPING, AND FITTINGS	19751031
   MACK TRUCKS, INC	MACK TRUCKS, INCORPORATED	STEERING:LINKAGES:KNUCKLE:SPINDLE:ARM	19780808	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.		THE DEALER WILL INSPECT AND, IF NECESSARY, INSTALL CROSS STEERING ARMS OF IMPROVED DESIGN AND GREATER STRENGTH.
   MACK TRUCKS, INC	MACK TRUCKS, INCORPORATED	ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN	19771012	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.		DEALER WILL REPLACE THE ORIGINAL FAN WITH A STEEL FIXED BLADE FAN, FREE OF CHARGE.
   MACK TRUCKS, INC	MACK TRUCKS, INCORPORATED	EXTERIOR LIGHTING:HEADLIGHTS:SWITCH	19741121
   MACK TRUCKS, INC	MACK TRUCKS, INCORPORATED	STEERING:WHEEL AND HANDLE BAR	19790530	IN THE INVOLVED TRUCKS IT IS POSSIBLE THE ADJUSTABLE STEERING COLUMN REAR MOUNTING BRACKET COULD FAIL, ALLOWING STEERING WHEEL ASSEMBLY TO FALL DOWN ONTO THE OPERATOR"S LAP.		DEALER WILL INSTALL AN ADDITIONAL BRACKET IN THIS AREA TO PREVENT THE STEERING WHEEL FROM DISLOCATING IN THE EVENT OF A BRACKET FAILURE.

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