CROWN BUS 1992: SERVICE BRAKES, AIR:SUPPLY:HOSES, LINES/PIPING, AND FITTINGS
| Make : CROWN | Model : BUS | Year : 1992 |
| Build Dates : 1992-01-01 - 1992-03-01 | ||
| NHTSA CAMPAIGN ID Number : 92V078000 | ||
| Date Owner's Notified: 1992-05-15 | Date Received by ODI: 1992-05-19 | Date Added to Database: 1992-05-29 |
| Manufacturers Involved: THOMAS BUILT BUSES, INC. | ||
| Manufacturer's Responsible for the Recall: | ||
| Manufacturer Campaign Number: | ||
| Component: SERVICE BRAKES, AIR:SUPPLY:HOSES, LINES/PIPING, AND FITTINGS | ||
| Potential Number Of Units Affected : 24 | ||
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Summary:
A BRAKE AIR LINE PLUMBING ERROR CAUSES THE SPRING BRAKES TO BE APPLIED WITHOUT BRAKE APPLICATION WHEN THE AIR PRESSURE IN THE PRIMARY TANK DROPS TO A LEVEL WHICH AUTOMATICALLY ACTIVATES THE SPRING BRAKE SYSTEM. |
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Consequence:
ACTIVATION OF THE SPRING BRAKE SYSTEM WITHOUT OPERATORBRAKE APPLICATION WILL CAUSE THE SPRING BRAKE TO BE APPLIED, LOCKING THE BRAKESWITHOUT ANY WARNING TO THE OPERATOR. |
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Remedy:
REPLACE AND REROUTE AIR BRAKE HOSE TO COMPLY WITH FMVSS 121. |
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| Report Initiator: MFR | V Report | |
| Regulation Part Number: 571 | Federal Motor Vehicle Safety Standard Number: 121 | |
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Notes:
SYSTEM: AIR BRAKES, FMVSS 121.VEHICLE DESCRIPTION:BUSES AND SCHOOL BUSES. |
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