SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS
Nov 29, 1989
3,970 units potentially affected
The defect: NON-DOT "PUSH-ON" TYPE HOSES WERE USED IN CERTAIN ACCESSORY NON-BRAKE AIR SYSTEMS, WITHOUT ISOLATION OF THAT SYSTEM BY A CHECK VALVE, PRESSURE PROTECTION VALVE, OR OTHER MEANS OF SYSTEM SEPARATION.
The risk: TRUCKS DO NOT COMPLY WITH FMVSS 106; THERE COULD BE ANUNCHECKED LOSS OF AIR PRESSURE IN THE BRAKES THAT COULD RESULT IN THE LOSS OFSERVICE BRAKES AND TRUCK CONTROL.
The remedy: INSTALL PRESSURE PROTECTION VALVE(S) IN THE AIR SYSTEM TO ISOLATE ALL ACCESSORY AIR LINES FROM THE BRAKE SYSTEM.
MARMON MOTOR COMPANYView on NHTSA.gov