Service brakes, air: slack adjustersRecall 93V-133 · 1993 Dorsey DGTH-45
DORSEY TRAILERS, INC. recall 93V-133 covers 50 1993 Dorsey DGTH-45 for a service brakes, air: slack adjusters problem, reported to NHTSA on August 11, 1993.
Source: NHTSA recall 93V133000 and manufacturer quarterly reports. Started by an NHTSA defect investigation.
The problem
IMPROPER INSTALLATION OF EATON AUTOMATIC SLACK ADJUSTER ON EATON AXLES EQUIPPED WITH AIR OPERATED S-CAM BRAKES. THE SLACK ADJUSTER "FIXED ANCHOR BRACKET", WHICH TRIGGERS THE AUTOMATIC BRAKE ADJUSTMENT, WAS IMPROPERLY LOCATED. THE IMPROPERLY LOCATED ANCHOR BRACKET CAN DAMAGE THE AUTOMATIC SLACK ADJUSTER CONTROL ARM AND CAUSE THE SLACK ADJUSTER TO FAIL TO PERFORM THE MECHANICAL ADJUSTMENT FUNCTION FOR WHICH IT WAS DESIGNED.
The risk
FAILURE TO CORRECTLY ADJUST THE SLACK CAUSES THE BRAKESTO BECOME OUT-OF-ADJUSTMENT AND RESULTS IN REDUCED BRAKING POWER, INCREASEDSTOPPING DISTANCES, AND A POSSIBLE ACCIDENT.
The fix
REMOVE THE ANCHOR BRACKET, INSPECT THE SLACK ADJUSTER, AND REPLACE IT IF DAMAGED, INSTALL THE ANCHOR BRACKET IN THE PROPER LOCATION, AND ADJUST THE BRAKES.
SYSTEM: BRAKES; AIR.VEHICLE DESCRIPTION: 45 FOOT TANDEM AXLE PLATFORM TRAILERS.
Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.
Vehicles in this recall
Built from December 1, 1992 to January 1, 1993. Not every vehicle in these model years is included; check by VIN.
The investigation behind this recall
- SQNHTSA