United States 96V168000
CARPENTER INDUSTRIES, INC.
The problem
THE INCORRECT ELECTRICALMOTOR WAS INSTALLED ON THE FUEL PUMP THAT SUPPLIES FUEL TO THE ENGINE. THE MOTOR WAS SPECIFIED TO BE A CONTINUOUS DUTY MOTOR AND THE MOTORS INSTALLED WERE INTERMITTENT DUTY MOTORS. THE INTERMITTENT DUTY MOTORS UNDER CERTAIN CONDITIONS WILL OVERHEAT RESULTIN IN A THERMAL SWITCH SHUT DOWN OF THE ELECTRIC MOTOR.
Risk
THIS CONDITION WILL STOP THE FLOW OF FUEL TO THE BUS ENGINE AND THE VEHICLE WILL THEN STALL INCREASING THE POTENTIAL FOR A VEHICLE ACCIDENT.
What owners should do
DEALERS WILL REPLACE ALL THE INTERMITTENT DUTY MOTORS WITH CONTINUOUS DUTY CYCLE MOTORS.
Units 101