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  NHTSA Recall 85V159000

NHTSA Campaign Id 85V159000; Date: Nov. 26, 1985

icon1 Recalled Vehicles:

1984 Mack Mr600p 1985 Mack Mr600p 1984 Mack Ms250p 1985 Mack Ms250p

Component: Parking Brake:driveline:hydraulic:hoses, Lines/piping, And Fittings

Manufactured by: Mack Trucks, Incorporated

Affected Units:: 3,308

icon3 Recall Summary:

The quick release valve support bracket mounted on the axle may crack. This causes fatigue failure of the steel air lines leading to the rear parking brakes and chassis service brakes resulting in sudden loss of air pressure. Consequence of defect: this sudden loss of air to the brake chambers will result in automatic actuation of rear parking brake causing sudden rear wheel lockup which may contribute to an accident.

icon2 How to Fix:

Install a redesigned valve support bracket.

icon4 Recall Notes:

System: parking brakes air lines, quick release valve bracket. Vehicle description: mid-liner trucks.

Date Owners notified by Manufacturer: Nov 26, 1986

Also see:

All recalls of Mack vehicles.

More recall documents on nhtsa.gov.