Paccar

August 26, 1986

United States

PACCAR Incorporated

FRONT ALUMINUM STEERING AXLE HUBS WERE INCORRECTLY HEATED DURING STUD AND BEARING CUP PRESSING OPERATIONS. CONSEQUENCE OF DEFECT: DUE TO THE INCORRECT HEAT TREATMENT THE HUBS MAY CRACK AND FAIL UNDER CERTAIN OPERATING CONDITIONS.

April 2, 1986

United States

PACCAR Incorporated

FRONT AXLE SPRINGS MAY CRACK IN THE SPRING EYE AREA. CONSEQUENCE OF DEFECT: SPRING COULD BECOME DETACHED SEVERELY LIMITING VEHICLE CONTROL WHICH MAY LEAD TO AN ACCIDENT.

August 8, 1985

United States

PACCAR Incorporated

POSSIBILITY THAT A NEW THROTTLE ROD END WAS INCORPORATED IN THE THROTTLE MECHANISM DURING MANUFACTURING. THIS THROTTLE END USES A NYLON BEARING MATERIAL.

June 19, 1984

United States

PACCAR Incorporated

CONTROL VALVES MAY NOT ALLOW FULL PRESSURE RELEASE AFTER BRAKE PEDAL HAS BEEN RELEASED BY OPERATOR. United States

PACCAR Incorporated

IMPROPER REAR CAB LATCH MAY NOT LATCH PROPERLY CAUSING INADEQUATE CAB-TO-FRAME ATTACHMENT AT THE REAR CAB. United States

PACCAR Incorporated

DURING A FULL TURN OF THE STEERING WHEEL, THE FRONT LEFT SPRINGS MAY DAMAGE THE BRAKE SYSTEM OR THE ELECTRICAL SYSTEM.

August 24, 1983

United States

PACCAR Incorporated

AIR CONDITIONING AND HEATING DUCT HOSES COULD CHAFE AND EXPOSE THE WIRE REINFORCEMENT. THE EXPOSED WIRE MAY COME IN CONTACT WITH ONE OF THE ELECTRICAL CONNECTORS AND SHORT OUT.

March 1, 1983

United States

PACCAR Incorporated

FRONT AXLE AIR BRAKE CHAMBER IS ATTACHED WITH A CLAMP AND BOLT ASSEMBLY THAT MAY NOT HAVE BEEN POSITIONED CORRECTLY, AND MAY CHAFE AGAINST THE FRONT BRAKE HOSE. CHAFING COULD RESULT IN AN AIR LEAK AND LOSS OF AIR TO THE FRONT BRAKES. United States

PACCAR Incorporated

THE U SHAPED BOLTS THAT CONNECT THE SPRINGS AND SPRING SPACERS TO THE FRONT AXLE MAY NOT HAVE BEEN INSTALLED PROPERLY. THIS CONDITION COULD ALLOW THE AXLE TO SHIFT AND COULD DEGRADE THE STEERING CHARACTERISTICS OF THE VEHICLE. United States

PACCAR Incorporated

STEERING COMPONENTS MAY INTERFERE WITH EACH OTHER AND COULD LEAD TO SEPARATION OF STEERING LINKAGE. THE DRAGLINK, A COMPONENT IN THE STEERING LINKAGE THAT TRANSMITS TURNING MOVEMENTS TO THE WHEELS, MAY HAVE A CLAMP ON THE AXLE END WHICH HAS BEEN INCORRECTLY POSITIONED ON THE INBOARD SIDE OF THE DRAGLINK. United States

PACCAR Incorporated

THE REAR BRAKES MAY NOT RELEASE AS QUICKLY AS SPECIFICATIONS REQUIRE. CERTAIN TRUCKS WERE EQUIPPED WITH AN INCORRECT SIZE AIR BRAKE LINE INSTALLED BETWEEN THE REAR BRAKE RELAY VALVE AND THE AXLE TEE FITTING.

December 28, 1982

United States

PACCAR Incorporated

ON CERTAIN VEHICLES, THE AIR STARTER VALVES MAY BECOME INTERNALLY DAMAGED DURING NORMAL OPERATION. THIS MAY RESULT IN A MALFUNCTION OF THE VALVE, CAUSING THE AIR STARTER TO SELF ACTUATE AND START THE ENGINE OF AN UNATTENDED VEHICLE.

November 17, 1982

United States

PACCAR Incorporated

THE MATTRESSES INCLUDED WITH CERTAIN VEHICLES DO NOT COMPLY WITH FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 302, "FLAMMABILITY OF INTERIOR MATERIALS".

September 21, 1982

United States

PACCAR Incorporated

ON CERTAIN VEHICLES IMPROPER AIR HOSE ASSEMBLY PROCEDURES MAY HAVE RESULTED IN PIECES BEING LEFT IN THE HOSE. THESE PIECES COULD BLOCK THE HOSE AND CAUSE A MALFUNCTION.

July 26, 1982

United States

PACCAR Incorporated

THE HAND VALVE INSTALLED IN THE VEHICLE MAY HAVE BEEN INCORRECTLY POSITIONED. THIS WOULD ALLOW AIR TO ESCAPE FROM BOTH THE FRONT AND REAR SERVICE SYSTEMS SIMULTANEOUSLY IF THE CONTROL LINE TO THE REAR AXLE RELAY VALVES SHOULD FAIL. United States

PACCAR Incorporated

THE INVOLVED TRUCKS MAY HAVE BEEN ASSEMBLED WITHOUT THE INSTALLATION OF A SINGLE CHECK VALVE. THIS FAILS TO COMPLY WITH FEDERAL MOTOR VEHICLE SAFETY STANDARD NO.

April 14, 1982

United States

PACCAR Incorporated

IT MAY BE POSSIBLE FOR THE LCF THROTTLE ROD BELL CRANK TO MAKE CONTACT WITH THE RADIATOR SEAL. THIS CAN RESULT IN REDUCED ENGINE PERFORMANCE AND/OR THROTTLE RETURN.

August 14, 1981

United States

PACCAR Incorporated

June 19, 1980

United States

PACCAR Incorporated

STEERING ARMS ON INVOLVED VEHICLES, IDENTIFIED BY THE HEAT CODE "E14", MAY HAVE RECEIVED IMPROPER HEAT TREATMENT. THIS CONDITION COULD CAUSE THE STEERING ARM TO CRACK OR BREAK.

March 25, 1980

United States

PACCAR Incorporated

SOME VEHICLES CONTAIN LENSES THAT FADE FROM AMBER TO CLEAR AFTER EXPOSURE TO SUNLIGHT FOR PROLONGED PERIODS OF TIME. THIS FADING DOES NOT COMPLY WITH FEDERAL MOTOR VEHICLE SAFETY STANDARD NO.