1983 Peterbilt 310 recalls

POSSIBILITY THAT A NEW THROTTLE ROD END WAS INCORPORATED IN THE THROTTLE MECHANISM DURING MANUFACTURING. THIS THROTTLE END USES A NYLON BEARING MATERIAL. THIS BEARING MAY DETERIORATE UNDER CERTAIN CONDITIONS RESTRICTING THROTTLE ROD MOVEMENT. CONSEQUENCE OF DEFECT: THE RESTRICTING OF THROTTLE ROD MOVEMENT CAUSES A LOSS OF THROTTLE CONTROL WHICH MAY RESULT IN AN ACCIDENT.

INSPECTION AND REPLACEMENT OF ALL ALINABAL PARTS WILL BE MADE BY THE MANUFACTURER.

LINE PRESSURE SURGES OCCUR WHEN THE TRANSMISSION IS IN HIGH GEAR LOCKUP DUE TO A PLUMBING ERROR. CONSEQUENCE OF DEFECT: LINE PRESSURE SURGES COULD CAUSE BODILY HARM THROUGH ERRATIC FIRE HOSE DELIVERY ACTION.

REWORK PLUMBING TO PREVENT LINE PRESSURE SURGES.

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.

THE DEALER WILL INSTALL NEW FITTINGS ON THE FRAME END OF FRONT BRAKE HOSE AND REPLACE HOSES WITH A LONGER PART. THE FITTINGS WILL BE CORRECTLY LOCATED AND THE BRAKE CHAMBER CLAMP WILL BE POSITIONED CORRECTLY.

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.

THE DEALER WILL INSPECT AND REPLACE DAMAGED NUTS OR U BOLTS, OR TIGHTEN THE BOLTS AND NUTS TO SPECIFICATIONS. IT MAY BE NECESSARY TO INSERT ADDITIONAL SPACERS IN THE SPRINGS.

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.

DEALER WILL INSPECT THE FRONT STEERING FOR THE MISPLACED CLAMP AND RELOCATE IT CORRECTY. IF DAMAGED, THE DRAGLINK WILL BE REPLACED. DEALER WILL COR RECT THE CLEARANCE OF THE SUSPENSION RADIUS RODS TO PREVENT INTERFERENCE, IF NECESSARY.

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. THE CONDITION IS NOT IN COMPLIANCE WITH FEDERAL MOTOR VEHICLE SAFETY STANDARD 121, "AIR BRAKE SYSTEMS".

THE DEALER WILL REPLACE ANY INCORRECTLY SIZED HOSES WITH THE CORRECT PART AT NO CHARGE.