United States 98V189000
Daimler Commercial Buses NA
The problem
VEHICLE DESCRIPTION: TRANSIT BUSES EQUIPPED WITH CHALLENGER 2000 MODEL 170 SERIES ALTERNATORS. THE POSITIVE POWER STUD MAY NOT BE PROPERLY SEATED IN PLACE CAUSING A LOOSE CONNECTION. THIS LOOSE CONNECTION CAUSES AN OVER-HEAT CONDITION WHEN THE ALTERNATOR IS UNDER A LOAD. ALSO THE MATERIAL USED TO INSULATE THE POWER STUD FROM THE RECTIFIER CAN TEAR AND CAUSE THE POSITIVE POWER STUD TO GROUND TO THE ALTERNATOR CASE.
Risk
THE ALTERNATOR CAN GET HOT ENOUGH TO CATCH FIRE WHICH COULD SPREAD TO OTHER AREAS OF THE VEHICLE.
What owners should do
DEALERS WILL REPLACE THESE ALTERNATORS.
Units 45