Safety defect investigations, technical specifications, and manufacturer repair notices for Canadian owners.
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Safety recall notices and repair campaigns registered for the 1975 Mack Rl in Canada.
THE ADJUSTABLE STEERING COLUMN REAR MOUNTING BRACKET COULD FAIL, ALLOWING THE STEERING WHEEL ASSEMBLY TO FALL ONTO THE OPERATOR'S LAP. WHILE STEERING WOULD BE FUNCTIONAL THE SURPRISE COULD CAUSE LOSS OF STEERING CONTROL.
A failure of this component (not entered) may increase the risk of a crash or injury.
Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).
ANTI-WHEEL LOCK VALVES SUPPLIED BY EATON CORPORATION MAY BE EXPOSED TO ACCUMULATED CONCENTRATIONS OF FLUID CONTAMINANTS IN THE AIR BRAKE SYSTEM THAT COULD CAUSE THE PISTON TO STICK THEREBY PREVENTING ANY AIR FROM BEING DELIVERED TO THE AIR BRAKE CHAMBERS SUPPLIED BY THAT VALVE. LTHIS CONDITION WILL RESULT IN A NO BRAKE APPLICATION ON THE AFFECTED AXLE, THEREBY EXTENDING VEHICLE STOPPING DISTANCES.
A failure of this component (not entered) may increase the risk of a crash or injury.
Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).
THE EATON MODEL 21 ANTI-WHEEL LOCK CONTROLLER MAY MALFUNCTION AND PREVENT APPLICATION OF THE BRAKE ON THE AXLE CONTROLLED BY THE DEFECTIVE CONTROLLER. A "NO BRAKE" SITUATION MAY DEVELOP WHICH WOULD AFFECT VEHICLE BRAKING CHARACTERISTICS AND MAY LEAD TO A VEHICLE CRASH.
A failure of this component (not entered) may increase the risk of a crash or injury.
Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).
TRUCKS EQUIPPED WITH MACK 6 CYLINDER ENGINES AND FLEXIBLE BLADE ENGINE COOLING FANS. THE FLEXIBLE BLADE FANS MAY DEVELOP FATIGUE CRACKS IN THE LAMINATED STIFFENER. CONTINUED ENGINE OPERATION COULD CAUSE A PIECE OF THE STIFFENER TO BREAK OFF AND BE PROPELLED OUTSIDE OF THE FAN SHROUD. A PROPELLED FRAGMENT COULD CAUSE INJURY TO SERVICE PERSONNEL IN THE VICINITY OF AN OPERATING ENGINE.
A failure of this component (not entered) may increase the risk of a crash or injury.
Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).
TRUCKS EQUIPPED WITH FL-931 FRONT AXLES WITH DISC WHEELS AND ROCKWELL INTERNATIONAL ALUMINUM FRONT WHEEL HUBS. ROCKWELL INTERNATIONAL HAS DETERMINED THAT A DEFICIENCY EXISTS IN ITS 333-P-2304 FORGED ALUMINUM FRONT WHEEL HUBS (PART NO. 333-N-2302) IN THE BARREL SECTION BETWEEN THE INNER AND OUTER WHEEL BEARING WHICH MAY RESULT IN CRACKS. CONTINUED OPERATION IN THIS CONDITION COULD CAUSE THE HUB TO SEPARATE FROM THE VEHICLE WITH THE POSSIBILITY OF A VEHICLE CRASH.
A failure of this component (not entered) may increase the risk of a crash or injury.
Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).
VEHICLES EQUIPPED WITH FORGED ALUMINUM HUBS ON ROCKWELL FF931 AXLES WITH DISC WHEELS. LTHE FORGED ALUMINUM FRONT WHEEL HUBS HAVE A DESIGN DEFICIENCY IN THE BARREL BETWEEN THE INNER AND OUTER BEARINGS WHICH CAN LEAD TO CRACKING AND FAILURE OF THE HUB.
A failure of this component (not entered) may increase the risk of a crash or injury.
Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).
VEHICLES EQUIPPED WITH ROCKWELL INTERNATIONAL FRONT AXLE FORGED ALUMINUM HUBS. THE SUSPECT ROCKWELL HUBS (PART NUMBER 333-Y-2209X) CONTAIN A DESIGN DEFICIENCY IN THE AREA OF THE WHEEL MOUNTING FLANGE
A failure of this component (not entered) may increase the risk of a crash or injury.
Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).
VEHICLES EQUIPPED WITH EATON SKID CONTROL SYSTEM AND ROCKWELL INTERNATIONAL FF931 OR FL931W FRONT AXLES WITH ALUMINUM WHEEL HUBS ERECTED BETWEEN MARCH 18, 1975 AND DECEMBER 11, 1975. FULL ADJUSTMENT OF THE WHEEL SPEED SENSOR IN ITS MOUNTING BRACKET CANNOT BE OBTAINED WITH THE PRESENT EATON WHEEL SPEED ROTOR ON CERTAIN OF THE VEHICLES INVOLVED.
A failure of this component (not entered) may increase the risk of a crash or injury.
Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).
THE REINFORCEMENT INSERTS SPECIFIED IN THE CONNECTORS USED WITH THE SYNFLEX SERVICE BRAKE HOSES TO THE BOGIE WHEELS MAY HAVE BEEN OMITTED. THIS COULD RESULT IN INADEQUATE RETENTION OF THE HOSE TO THE CONNECTOR WHICH COULD ALLOW THE HOSE TO DISCONNECT DURING BRAKE APPLICATION, CAUSING LOSS OF BRAKING ON THE AFFECTED WHEELS.
A failure of this component (not entered) may increase the risk of a crash or injury.
Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).
THE TRAILER SUPPLY CONTROL VALVE EXHAUST PORT MAY HAVE INADVERTENTLY PLUGGED AND THE SAFETY VALVE ON THE AIR RESERVOIR MAY HAVE BEEN OMITTED. IF THE TRAILER SUPPLY CONTROL VALVE EXHAUST PORT IS PLUGGED, IT COULD CAUSE INTERMITTENT LOCK-UP OF THE TRAILER BRAKES AND OCCASIONAL DIFFICULTY IN CHARGING THE TRAILER BRAKE AIR SYSTEM. OMISSION OF THE AIR RESERVOIR SAFETY VALVE COULD RESULT IN EXCESSIVE AIR BRAKE SYSTEM PRESSURES IN THE EVENT OF A MALFUNCTION OF THE AIR COMPRESSOR GOVERNOR. CONTINUED VEHICLE OPERATION WITH EXCESSIVE PRESSURE COULD LEAD TO SYSTEM FAILURE.
A failure of this component (not entered) may increase the risk of a crash or injury.
Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).
THE ROAD LAMP CIRCUIT WAS WIRED PARALLEL WITH THE HEADLAMPS. THIS COULD CAUSE MEMENTARY LOSS OF FORWARD ILLUMINATION, AS A RESULT OF COMBINED ELECTRICAL CIRCUIT OVERLOAD.
A failure of this component (not entered) may increase the risk of a crash or injury.
Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).
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