MACK MB400 1969: SERVICE BRAKES, AIR:SUPPLY:HOSES, LINES/PIPING, AND FITTINGS

General Information

NHTSA Campaign ID Number: 71V190000

Make Model Year
MACK MB400 1969
Date Owners Notified Date Received by ODI Date Added to Database
1971-12-17 1971-10-20 1979-10-12

Production Dates: 1969-05-01 - 1971-08-01

Manufacturers Involved: Mack Trucks, Inc.

Component: SERVICE BRAKES, AIR:SUPPLY:HOSES, LINES/PIPING, AND FITTINGS

Potential Number Of Units Affected: 916

Report Initiator: MFR MFR Report

Notes

MAY 1, 1969 THRU AUG 17, 1971.POSSIBILITY THAT AIR BRAKE PIP ING HAS BEENERRONEOUSLY CONNECTED TO HAND CONTROL VALVE WHICH , WHEN APPLIED, IS TO OPERATESERVICE BRAKES ON REAR AXLE.ER RONEOUS PIPING WILL CAUSE BRAKING TO BE ONFRONT AXLE INSTEADOF REAR AXLE.CONDITION DOES NOT WITH NORMAL FUNCTIONINGOF S ERVICE OR EMERGENCY BRAKE SYSTEMS.'CORRECT BY INSPECTING ANDINSTALLINGPROPER PIPING WHERE PIPING WHERE NECESSARY.'