CROWN UNSPECIFIED 1975: SERVICE BRAKES, AIR:DRUM:SHOES/LININGS

General Information

NHTSA Campaign ID Number: 78V129000

Make Model Year
CROWN UNSPECIFIED 1975
Date Owners Notified Date Received by ODI Date Added to Database
1978-06-28 1978-06-08 1979-10-12

Production Dates: 1975-04-01 - 1978-06-01

Manufacturers Involved: CROWN AUTO TOP MFG.

Component: SERVICE BRAKES, AIR:DRUM:SHOES/LININGS

Potential Number Of Units Affected: 900

Report Initiator: MFR MFR Report

Summary

THE BRAKE SHOE WELDS ON THE REAR BRAKE ASSEMBLIES WHERE THE BRAKE SHOE WEB JOINS THE BRAKE SHOE TABLE COULD FAIL. CONTINUED USAGE OF THE BRAKE SHOE ASSEMBLY WITH A BROKEN WELD INDUCES A LESSENING OF BRAKE EFFECT AND COULD RESULT IN COMPLETE LOSS OF BRAKING ON THE SIDE OF THE AXLE WHERE THE FAILURE OCCURRED.

Remedy

THE DEALER WILL REPLACE THE EXISTING BRAKE SHOE ASSEMBLY WITH A NEW ONE WHICH WILL INCLUDE NEW LININGS AND A REINFORCEMENT WELD AT EACH END OF THE WEB TO TABLE LOCATION.

Notes

VEHICLE DESCRIPTION: SCHOOL BUSES EQUIPPED WITH 16.5X10 BRAKE SHOES.SYSTEM: SERVICE BRAKES; BRAKE SHOE ASSEMBLY.CONSEQUENCES OF DEFECT: LOSS OF BRAKING CAPABILITY COULD RESULT IN A VEHICLEACCIDENT WITHOUT PRIOR WARNING.