NHTSA recall 94V109000
Service brakes, air › Supply
Oshkosh MB18FD
The defect
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.
The risk
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.
The 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.