Service brakes, air: supply: low pressure warning: switch
- Component
- Service brakes, air: supply: low pressure warning: switch
- Manufacturer
- E-ONE, INC.
- Vehicles affected
- 71
- Reported to NHTSA
- 1988-11-01
- Owners notified
- 1988-12-07
Defect description
USE OF THE AIR HORN CAN CAUSE THE AIR PRESSURE TO DROP BELOW 85 PSI.
Safety risk
IF AIR PRESSURE DROPS BELOW 85 PSI WHILE THE VEHICLE ISBEING DRIVEN THE REAR BRAKE SPRING CHAMBERS WILL START TO APPLY CAUSING THEREAR BRAKE DRUMS TO OVERHEAT.
Manufacturer remedy
INSTALL PRESSURE PROTECTION VALVES IN ALL AIR HORN CIRCUITS.