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NHTSA Campaign 86V072000

SERVICE BRAKES, AIR:DRUM

Issued by THAYCO MANAFACTURING CO. · Reported May 28, 1986 · 180 vehicles affected

What's wrong

A RESONANT VIBRATION CAN BE INITIATED UNDER CERTAIN OPERATING CONDITIONS, CAUSING A DETERIORATION OF THE BRAKE CHAMBER WHICH RESULTS IN REVERSE BRAKE CAM ROTATION CREATING GRABBY BRAKES, BRAKE CHATTER, OR SPRING BRAKE DAMAGE. CONSEQUENCE OF DEFECT: IF THIS OCCURS, COMPLETE BRAKE FAILURE COULD BE EXPERIENCED, AND COULD LEAD TO AN ACCIDENT.

Remedy

REMOVE SPRING SEATS, REVERSE THE AXLE, REWELD AND ASSEMBLE SUSPENSION.

Vehicles affected by this recall

Make Model Year Units
THAYCO THAYCO 1985 180

Source: NHTSA Campaign 86V072000 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.