FREIGHTLINER UNSPECIFIED 1989: SERVICE BRAKES, AIR:DISC:CHAMBER

General Information

NHTSA Campaign ID Number: 93V069000

Make Model Year
FREIGHTLINER UNSPECIFIED 1989
Date Owners Notified Date Received by ODI Date Added to Database
1993-06-22 1993-04-26 1993-04-30

Production Dates: 1988-12-01 - 1993-01-01

Manufacturers Involved: FREIGHTLINER LLC

Component: SERVICE BRAKES, AIR:DISC:CHAMBER

Potential Number Of Units Affected: 200

Report Initiator: MFR MFR Report

Summary

THE SPRING BRAKE CHAMBERS MOUNTED ON TAG AXLES WITH MOUNTING STUDS ALIGNED HORIZONTALLY INSTEAD OF VERTICALLY CAN RESULT IN FRACTURE OF THE BRAKE CHAMBER HOUSING BASE WHICH LIMITS THE APPLICATION OF SERVICE BRAKES ON THE AFFECTED WHEEL.

Consequence

LIMITED APPLICATION OF SERVICE BRAKES ON A WHEELINCREASES STOPPING DISTANCE WHICH COULD RESULT IN AN ACCIDENT.

Remedy

REPLACE THE BRAKE CHAMBERS WITH CHAMBERS THAT HAVE BEEN REINFORCED FOR HORIZONTAL MOUNTING.

Notes

SYSTEM: BRAKES.VEHICLE DESCRIPTION: HEAVY TRUCKS WITH SPRING BRAKE TYPE MGM BRAKE CHAMBERSINSTALLED ON ROCKWELL TAG AXLES.