2001 KENWORTH T300

VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM

VEHICLE DESCRIPTION: CERTAIN HEAVY DUTY TRUCKS FAIL TO COMPLY WITH THE REQUIREMENTS OF FMVSS NO. 103, "WINDSHIELD DEFROSTING AND DEFOGGING SYSTEMS." THE MODE DOOR IN AN HVAC SYSTEM CAN BECOME INOPERABLE. THE MODE DOOR CAM AND ACTUATOR COULD BIND, CAUSING THE CAM RETAINING TABS TO SHEAR OFF.

SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DRUM:SHOES/LININGS

VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS EQUIPPED WITH 10,000 OR 12,000 POUND DANA FRONT AXLES. A CONDITION CALLED BRAKE "SPRAG", WHICH IS CHARACTERIZED BY A NOISE AT THE END OF AN APPLIED STOP, CAN DEVELOP IN THE BRAKE SYSTEM. THIS NOISE IS THE RESULT OF A PULSATION OF THE BRAKE LINING WITH THE B

SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE

ON CERTAIN HEAVY DUTY TRUCKS EQUIPPED WITH MERITOR WABCO PNEUMATIC ANITLOCK BRAKE SYSTEM (ABS) VALVE PACKAGES, THE ASSEMBLY BOLTS ON THESE VALVE PACKAGES WERE NOT TIGHTENED CORRECTLY.

SERVICE BRAKES, AIR:SUPPLY:RESERVOIR/TANK

VEHICLE DESCRIPTION: CERTAIN VEHICLES HAVING AN INTENDED SERVICE CODE OF "FIRE SERVICE" AND EITHER TYPE 24 OR LARGER FRONT BRAKE CHAMBERS OR TYPE 36 REAR BRAKE CHAMBERS FAIL TO COMPLY WITH REQUIREMENTS OF FMVSS NO. 121, "AIR BRAKE SYSTEMS." THESE VEHICLES WERE BUILT WITH A COMBINED AIR RESERVOIR V

TRAILER HITCHES:FIFTH WHEEL ASSEMBLY

ON CERTAIN TRUCKS EQUIPPED WITH JOST INTERNATIONAL JSK 37U SERIES FIFTH WHEELS, A FATIGUE CRACK CAN DEVELOP IN THE BRACKET PIN WELD UNDER CERTAIN LOADING CONDITIONS.