2002 MACK CH

SERVICE BRAKES, AIR

ON CERTAIN TRUCKS EQUIPPED WITH MANIFOLD DASH VALVES WITH PUSH TO CONNECT FITTINGS USED TO CONTROL THE PARK BRAKE FUNCTION ON TRUCKS AND TRAILERS WITH AIR BRAKES, THE PARK KNOB CAN POP OUT UNEXPECTEDLY WHILE THE VEHICLE IS IN MOTION. THIS WILL EXHAUST THE AIR FROM THE PARK BRAKE SYSTEM ON THE TRAIL

FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS

ON CERTAIN HEAVY DUTY CLASS 8 DIESEL TRUCKS EQUIPPED WITH ASET AC ENGINES, THE LOCATION OF THE FUEL INLET HOSE MAY RESULT IN OVERHEATING OR ABRASION OF THE HOSE, WHICH MAY LEAD TO A PREMATURE FAILURE.

FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY:PRESSURE RELIEF DEVICES

ON CERTAIN CHASSIS BUILT WITH LNG ENGINES, THE NEXGEN LNG TANK'S PRIMARY AND SECONDARY RELIEF VALVES COULD FAIL TO OPEN AND RELIEVE TANK PRESSURE.

FUEL SYSTEM, DIESEL

ON CERTAIN TRUCKS EQUIPPED WITH ASET AC MODEL ENGINES, THE ENGINE AS CONFIGURED WITH AN EXTERNAL EXHAUST GAS RECIRCULATION SYSTEM MAKES SERVICING THE FUEL INJECTION LINES DIFFICULT WHEN USING TRADITIONAL TOOLS. THEREFORE, IT IS POSSIBLE FOR FUEL LEAKS TO DEVELOP WHEN REMOVING AND INSTALLING THE FU

STEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS

ON CERTAIN CLASS 8 CHASSIS EQUIPPED WITH R. H. SHEPPARD "M100" STEERING GEARS AND TRW "TAS65" STEERING GEARS, A POWER STEERING HOSE WITH AN INCORRECT PRESSURE RATING WAS INSTALLED BY THE FACTORY.

PARKING BRAKE

CERTAIN CLASS 8 CHASSIS FAIL TO COMPLY WITH REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS." THE INSTALLATION OF THE ADDITIONAL AXLE(S), RAISES THE GVW CAPABILITY OF THE VEHICLE AND THEREFORE REQUIRES AN INCREASE IN THE PARKING BRAKE PERFORMANCE TO HOLD ON A 20% G

2002 MACK TRUCK CH SERIES AXLE BROKE FORCING THE TRUCK TO STRIKE THE MEDIAN WALL. *NJ (OHIO TRAFFIC CRASH REPORT # 101-0517-91) *JB LETTER UPDATED 03/17/10*BF