NHTSA Campaign 94V109000

SERVICE BRAKES, AIR:SUPPLY

Issued by OSHKOSH TRUCK CORPORATION · Reported Jun 10, 1994 · 37 vehicles affected

What's wrong

THE AIR COMPRESSOR AIR SUPPLY LINE IS ROUTED FROM THE COMPRESSOR OVER THE TOP OF THE FRAME RAIL, UNDER THE BRAKE HYDROMAX, AND DOWN TO THE AIR SYSTEM. THIS LINE CAN CONTACT THE STEEL SECTION OF THE HYDROMAX HYDRAULIC SUPPLY LINE, CAUSING A LEAK TO OCCUR IN THE HYDRAULIC LINE, ALLOWING HYDRAULIC FLUID TO LEAK ON THE LEFT FRONT WHEEL AND BRAKE ASSEMBLY.

Consequence

THE LEAK ALLOWS ENOUGH FLUID TO BE PUMPED FROM THE SYSTEM TO ELIMINATE POWER STEERING ASSIST. THE ELECTRONIC SECONDARY BRAKE PUMP WILL ENGAGE, BUT THE LEAK WILL RESULT IN INCREASED STOPPING DISTANCE.

Remedy

DEALERS WILL INSTALL A CUSHION CLIP ON THE TOP LEFT FRAME RAIL SEPARATING AND ELIMINATING ANY CONTACT BETWEEN THE STEEL JACKETED AIR LINE AND THE METAL SECTION OF THE HYDRAULIC LINE.

Vehicles affected by this recall

Make Model Year Units
OSHKOSH MB18FD 1993 37
OSHKOSH MB18FD 1994 37

Source: NHTSA Campaign 94V109000 on nhtsa.gov. To check the current repair status for a specific vehicle, use our free VIN decoder.