| NHTSA Campaign Number: |
85V124000 |
| Vehicle/Equipment Make: |
CHEVROLET |
| Vehicle/Equipment Model: |
ASTRO |
| Model Year: |
1985 |
| Manufacturer Campaign Number: |
|
| Manufacturer Component Description: |
PARKING BRAKE:DRIVELINE:AIR:CHAMBER |
| Manufacturers Involved in Recall: |
GENERAL MOTORS CORP. |
| Manufacturered: |
19820701 - 19850201 |
| Type of Report: |
V (Vehicle, Equipment or Tire) |
| Potential Number of Units Affected: |
4870 |
| Date Owner Notified By Manufacturer: |
|
| Recall Initiated By: |
|
| Manufacturer Responsible For Recall: |
GENERAL MOTORS CORP. |
| Report Received Date: |
19851007 |
| Record Creation Date: |
19851016 |
| Regulation Part Number: |
571 |
| Federal Motor Vehicle Safety Standard Number: |
121 |
| Defect Summary: |
THE REAR BRAKE RELEASE TIME MAY BE GREATER THAN THE TIME SPECIFIED IN FMVSS 121, "AIR BRAKE SYSTEM". IN ADDITION, SOME TRACTORS MAY HAVE WARPED PARKING BRAKE APPLY SPRINGS WHICH ALSO EFFECT THE REAR BRAKE RELEASE TIME. CONSEQUENCE OF DEFECT: TRACTORS FAIL TO MEET THE STOPPING DISTANCE SPECIFIED IN FMVSS 121 WHICH IS REQUIRED TO STOP THE TRUCK SAFELY. |
| Consequence Summary: |
|
| Corrective Summary: |
INSTALL A QUICK RELEASE VALVE IN THE TRAILER SERVICE AIR LINE AND INCREASE THE DIAMETER OF THE REAR SERVICE BRAKE LINE. ALSO INSPECT REAR SPRING BRAKE CHAMBER AND RELEASE IF NECESSARY. |