United States 86V025000
HINO DIESEL TRUCKS(USA)
The problem
THE RUBBER VALVE OF THE BRAKE AIR MASTER (BOOSTER) MAY TEAR DUE TO HIGH FLUID PRESSURE DEVELOPED DURING SIMULTANEOUS APPLICATION OF BOTH THE SERVICE AND REAR WHEEL PARKING BRAKE. CONSEQUENCE OF DEFECT: THE DAMAGE RUBBER VALVE RESULTS IN LOSS OF SERVICE BRAKE CAPACITY WHICH MAY LEAD TO AN ACCIDENT.
What owners should do
REPLACE BRAKE AIR MASTER (BOOSTER).
Units 108