NHTSA campaign 99V055004
Reported
Service Brakes, Air
Model year 1999
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.
Filed by Volvo Trucks North America