The defect
THE TWO (2) RELAY SERVICE VALVES ARE CONNECTED TO THE SAME RESERVOIR RESULTING IN 4.25 TIMES, RATHER THAN 8 TIMES, THE COMBINED VOLUME OF ALL CHAMBERS AT MAXIMUM TRAVEL. THIS DOES NOT COMPLY WITH FMVSS 121, "AIR BRAKE SYSTEMS."
The risk
REPEATED MAXIMUM BRAKE APPLICATIONS CAN RESULT IN THEACTIVATION OF THE LOW PRESSURE WARNING SYSTEM AS THE RESERVOIR IS DEPLETED ATHIGHER THAN SPECIFIED RATE.
The remedy
CHANGE ONE OF THE RELAY SERVICE VALVE SUPPLY LINES TO THE SECOND RESERVOIR.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Trailmobile Trailer | 1992 |
Components: SERVICE BRAKES, AIR:ANTILOCK
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Trailmobile Trailer | 1992 | 0 | 1 |
Other service brakes, air recalls in 1992
7 of the 185 recall campaigns reported to NHTSA in 1992 concerned the service brakes, air; TRAILMOBILE INC. filed 20 campaigns in all.
| 92V176000 2 Dec 1992 | NAVISTAR INTL CORP. |
| 92V116000 3 Aug 1992 | LAG MOTORCOACH USA |
| 92V085000 17 Jun 1992 | BLUE BIRD BODY COMPANY |
| 92V078000 19 May 1992 | THOMAS BUILT BUSES, INC. |
| 92V069000 13 May 1992 | PACCAR, INCORPORATED |
| 92V038000 1 Apr 1992 | VOLVO GM HEAVY TRUCK CORP |
NHTSA recalls (public domain) · all recalls of 1992