Suspension: multiple axleRecall 78V-031 · Mack vehicles
MACK TRUCKS, INCORPORATED recall 78V-031 covers 33,000 Mack vehicles for a suspension: multiple axle problem, reported to NHTSA on February 9, 1978.
Source: NHTSA recall 78V031000 and manufacturer quarterly reports. Started by the manufacturer.
The problem
THE TEE BRACKET, WHICH IS MOUNTED ON THE FRONT AXLE OF THE BOGIE, MAY FAIL DUE TO VIBRATION BROUGHT ON BY ROAD SURFACE IRREGULARITIES. BRACKET FAILURE WOULD LEAVE THE TEE BRACKET UNSUPPORTED AND CAUSE BROKEN HOSE CONNECTOR FITTINGS. THIS WOULD RESULT IN AUTOMATIC APPLICATION OF THE SPRING EMERGENCY BRAKES.
The fix
THE DEALER WILL REPLACE THE DEFECTIVE BRACKET WITH A REDESIGNED VERSION.
VEHICLE DESCRIPTION: TRUCKS EQUIPPED WITH HIGHWAY BOGIES.SYSTEM: SUSPENSION; TEE BRACKET.CONSEQUENCES OF DEFECT: AUTOMATIC APPLICATION OF THE SPRING EMERGENCY BRAKESCOULD CAUSE LOSS OF VEHICLE CONTROL AND AN ACCIDENT.
Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.