VOLVO B10M 1986: SERVICE BRAKES, AIR:ANTILOCK
NHTSA Campaign ID Number: 91V205000
| Make | Model | Year |
|---|---|---|
| VOLVO | B10M | 1986 |
| Date Owners Notified | Date Received by ODI | Date Added to Database |
| 1991-10-23 | 1991-11-22 | 1991-11-25 |
Manufacturers Involved: Volvo Trucks North America
Component: SERVICE BRAKES, AIR:ANTILOCK
Potential Number Of Units Affected: 171
Report Initiator: MFR MFR Report
THE EXISTING INTERLOCK AIR BRAKE SYSTEM MUST GET ITS AIR SUPPLY DIRECTLY FROM THE PARKING BRAKE AIR SUPPLY CIRCUIT. SHOULD A COMPONENT FAILURE OCCUR IN THE INTERLOCK AIR SYSTEM, IT WILL DEPLETE THE AIR SUPPLY FROM THE PARKING BRAKE CIRCUIT.
DEPLETION OF AIR SUPPLY FROM THE PARKING BRAKE CIRCUITWOULD ALLOW THE BUS TO ROLL WITH THE PARKING BRAKE APPLIED. THIS COULDRESULT IN A VEHICLE ACCIDENT.
RELOCATE THE AIR SUPPLY LINE FOR THE INTERLOCK SYSTEM SO THAT THE AIR SUPPLY COMES FROM THE PARKING BRAKE CIRCUIT TO ENSURE THAT WHEN THE PARKING BRAKE IS APPLIED, THE PARKING BRAKE CANNOT BE DISENGAGED OR OVERRIDDEN BY COMPONENT FAILURES.
SYSTEM: BRAKES.VEHICLE DESCRIPTION: 60 FOOT ARTICULATED BUSES.
