Recall
Emergency One Ambulance — 88V171000
NHTSA ID
88V171000
Make
Emergency One
Model
Ambulance
Years Affected
1986
Recall Date
1988-11-01
Component
SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH
Units Affected
71
Completion Rate
—
Mfr Campaign No.
Summary
USE OF THE AIR HORN CAN CAUSE THE AIR PRESSURE TO DROP BELOW 85 PSI.
Consequence
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.
Remedy
INSTALL PRESSURE PROTECTION VALVES IN ALL AIR HORN CIRCUITS.