NHTSA Recall 91V187000
NHTSA Campaign Id 91V187000; Date: Oct. 27, 1991
Cracks in the tie rod can result in separation of thetie rod and loss of vehicle control without prior warning.
Recalled Vehicles:
1985 Oshkosh F; 1986 Oshkosh F; 1987 Oshkosh F; 1988 Oshkosh F; 1989 Oshkosh F; 1990 Oshkosh F; 1991 Oshkosh F; 1985 Oshkosh P; 1986 Oshkosh P; 1987 Oshkosh P; 1988 Oshkosh P; 1989 Oshkosh P; 1990 Oshkosh P; 1991 Oshkosh P
Component: Service Brakes, Hydraulic:foundation Components:drum
Manufactured by: Oshkosh Truck Corporation
Affected Units:: 130
Recall Summary:
These vehicles have front axles with brake cam operation opposite to the rotation of the brake drum (cam opposite), and there is a tendency for brakes to chatter under low air pressure, resulting in vibrations. The vibrations induce stresses in the tie rod end beyond its endurance limit, and result in cracks in the threaded portion of the stud where the tube ends.
How to Fix:
Replace the cam opposite brake actuation with cam same brake operation, by interchanging the left and right cam assemblies to avoid brake chattering; and replace tie rods.
Recall Notes:
System: brakes and front suspension. Vehicle description: heavy trucks with 18000 lbs. Driving front axles.
Date Owners notified by Manufacturer: Nov 8, 1991
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