NHTSA Campaign 97V151000

SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH

Issued by WESTERN STAR TRUCKS, INC. · Reported Sep 14, 1997 · 40 vehicles affected

What's wrong

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."

Consequence

AIR BRAKE RELEASE TIME MAY BE LONGER THAN ANTICIPATED BY THE OPERATOR INCREASING THE RISK OF A VEHICLE CRASH.

Remedy

DEALERS WILL INSTALL AN IN-LINE QUICK RELEASE VALVE IN EACH OF THE DROP LINES TO THE REAR MOST BRAKE CHAMBERS.

Vehicles affected by this recall

Make Model Year Units
WESTERN STAR CONSTELLATION 1997 40
WESTERN STAR HERITAGE 1997 40

Source: NHTSA Campaign 97V151000 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.