INTERNATIONAL HARVESTER TRANSTAR SERIES 1975: SERVICE BRAKES, AIR:DRUM

General Information

NHTSA Campaign ID Number: 79V211000

Make Model Year
INTERNATIONAL HARVESTER TRANSTAR SERIES 1975
Date Owners Notified Date Received by ODI Date Added to Database
1979-11-30 1979-09-18 1979-12-12

Production Dates: 1975-03-01 - 1979-04-01

Manufacturers Involved: INTERNATIONAL TRUCK & ENGINE CORPORATION

Component: SERVICE BRAKES, AIR:DRUM

Potential Number Of Units Affected: 25000

Report Initiator: ODI ODI Report

Summary

AS A RESULT OF SEVERE SHOCK AND VIBRATIONS, THE BRAKE SPIDERS ON THE INVOLVED VEHICLES MAY DEVELOP CRACKS NEAR THE CAMSHAFT MOUNTING BOSS. THE CRACK PROPAGATES ACROSS THE SPIDER UNTIL THE CAMSHAFT BOSS IS COMPLETELY SEVERED FROM THE REMAINDER OF THE SPIDER. WHEN THE CAMSHAFT BOSS HAS COMPLETELY SEVERED, THE S-CAM, S-CAM BRACKET, AIR CHAMBER AND SLACK ADJUSTER CAN FALL AWAY FROM THE BRAKE SPIDER RESULTING IN A "NO BRAKE" CONDITION ON THE WHEEL.

Remedy

THE DEALER WILL REPLACE THE FRONT BRAKE SPIDERS ON ALL AFFECTED VEHICLES USED IN SNOW PLOW DUMP AND REFUSE HAULING APPLICATIONS. THIS WILL BE DONE AT NO CHARGE.

Notes

VEHICLE DESCRIPTION: MEDIUM AND HEAVY TRUCKS EQUIPPED WITH EATON 16-1/2 BY 5INCH S-CAM.SYSTEM: SERVICE BRAKES: BRAKE SPIDERS.CONSEQUENCES OF DEFECT: PARTIAL LOSS OF FRONT BRAKING CAPABILITY AND IMBALANCESCAN AFFECT VEHICLE STABILITY DURING SUDDEN STOPS. THIS CAN CONTRIBUTE TO AVEHICLE ACCIDENT.