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NHTSA Campaign 99V055004

SERVICE BRAKES, AIR

Issued by VOLVO TRUCKS NORTH AMERICA INC · Reported May 10, 1999 · 285 vehicles affected

What's wrong

VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS EQUIPPED WITH MERITOR AIR BRAKE AUTOMATIC SLACK ADJUSTERS. SOME OF THE AUTOMATIC SLACK ADJUSTERS HAD INSUFFICIENT TORQUE APPLIED TO THE GUIDE PAWL CAP SCREW.

Consequence

WITHOUT SUFFICIENT TORQUE ON THE GUIDE PAWL CAP SCREW, THE BRAKES COULD GRADUALLY LOSE ADJUSTMENT, INCREASING THE VEHICLE STOPPING DISTANCE.

Remedy

DEALERS WILL CHECK THE TORQUE ON THE AUTOMATIC SLACK ADJUSTER GUIDE PAWL. IF THERE IS NO TORQUE, THE BRAKES WILL BE ADJUSTED AND THE GUIDE PAWL WILL BE TIGHTENED TO 15-20 FT. LBS.

Vehicles affected by this recall

Make Model Year Units
VOLVO AC 1999 285
VOLVO VN 1999 285
VOLVO WG 1999 285
VOLVO WX 1999 285

Source: NHTSA Campaign 99V055004 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.