THE DUAL DOUBLE CHECK VALVE MAY NOT RELEASE THE PROPER AIR VOLUME TO THE BRAKE SYSTEM
— Recall Campaign #85V113000
THE DUAL DOUBLE CHECK VALVE MAY NOT RELEASE THE PROPER AIR VOLUME TO THE BRAKE SYSTEM, CAUSING A SLIGHT TIMING DELAY BETWEEN THE TRACTOR AND THE TRAILER BRAKE SYSTEM. CONSEQUENCES OF DEFECT: IF THE BRAKES ARE SUDDENLY APPLIED, THE TRAILER COULD JACKKNIFE WITHOUT WARNING TO THE OPERATOR, WHICH COULD RESULT IN A VEHICLE CRASH.
The recall was influenced by the manufacturer with about 5,020 units affected.
NHTSA Safety Recall Notice
85V113000
| Manufacturer: | Mack Trucks, Inc. |
|---|---|
| Recall date: | September 17, 1985 |
| NHTSA Campaign #: | 85V113000 |
| Units affected: | 5,020 |
- Description:
- THE DUAL DOUBLE CHECK VALVE MAY NOT RELEASE THE PROPER AIR VOLUME TO THE BRAKE SYSTEM, CAUSING A SLIGHT TIMING DELAY BETWEEN THE TRACTOR AND THE TRAILER BRAKE SYSTEM. CONSEQUENCES OF DEFECT: IF THE BRAKES ARE SUDDENLY APPLIED, THE TRAILER COULD JACKKNIFE WITHOUT WARNING TO THE OPERATOR, WHICH COULD RESULT IN A VEHICLE CRASH.
- Consequeces:
- Corrective action:
- INSTALL TWO NEW SLEEVES IN THE DUAL DOUBLE CHECK VALVE WHICH WILL INCREASE AIR FLOW.
- Notes:
- VEHICLE DESCRIPTION: HEAVY DUTY TRACTOR TRAILER COMBINATIONS. SYSTEM: BRAKES, TRACTOR TO TRAILER.