SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
VEHICLE DESCRIPTION: HEAVY DUTY 6X4 TRUCKS EQUIPPED WITH EITHER HENDRICKSON RT/RS SERIES SUSPENSIONS OR CHALMERS 800 SERIES SUSPENSIONS, WITH A WHEEL BASE GREATER THAN 250 INCHES, AND WESTERN STAR'S AIR '96' AIR BRAKE SYSTEM WITHOUT ANTI-LOCK BRAKES. THESE VEHICLES DO NOT MEET THE AIR BRAKE RELEASE TIME REQUIRED BY FMVSS NO. 121, "AIR BRAKE SYSTEMS."
Remedy: DEALERS WILL INSTALL AN IN-LINE QUICK RELEASE VALVE IN EACH OF THE DROP LINES TO THE REAR MOST BRAKE CHAMBERS.
40 vehicles affected
TRAILER HITCHES:FIFTH WHEEL ASSEMBLY
VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS EQUIPPED WITH FONTAINE SL6FM229-8375 FIXED FIFTH WHEELS. THE FIFTH WHEEL MOUNTING PLATE FLANGES IN THE FRONT AND REAR CAN INTERFERE WITH THE NORMAL ARTICULATION OF THE FIFTH WHEEL. THIS INTERFERENCE CAN LEAD TO DAMAGE OF THE FIFTH WHEEL LOCK HANDLE AND/OR THE TOP PLATE.
Remedy: DEALERS WILL REPLACE THE FIFTH WHEEL MOUNTING PLATES AND REPAIR ANY DAMAGED FIFTH WHEEL COMPONENTS.
14 vehicles affected