The defect
IMPROPER ROUTING OF THE AIR BRAKE HOSES FROM THE BRAKE VALVES TO THE BRAKE CHAMBERS OF THE AIR OPERATED S-CAM BRAKES CAN CAUSE THE HOSES TO CHAFE OR BE CUT ON THE TRAILER FRAME.
The risk
SERVICE BRAKE HOSE CHAFING OR CUTTING CAN CAUSE REDUCTIONOR LOSS OF SERVICE BRAKES WITHOUT PRIOR WARNING TO THE DRIVER. A VEHICLE CRASHCAN OCCUR AS A RESULT OF THE MALFUNCTIONING SERVICE BRAKES. ALSO, IF A SPRINGBRAKE HOSE IS CUT, THE SPRING BRAKE DRAG OCCURS, WHICH REDUCES THE EFFECTIVENESSOF THE SERVICE BRAKES, AND CAUSES BRAKE COMPONENTS TO OVERHEAT TO THE POINT OFIGNITING THE UNDERCOATING AND BURNING THE TRAILER. THIS CAN ALSO CAUSE WHEELLOCKUP WHICH COULD RESULT IN A VEHICLE CRASH.
The remedy
CHAFFED BRAKE HOSES WILL BE REPLACED, AND THE BRAKE HOSE ROUTING AND BRAKE CHAMBER INSTALLATION WILL BE MODIFIED TO ELIMINATE THE BRAKE HOSE CHAFFING PROBLEM.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|---|
| Dorsey Dfvpd | 1993, 1994 |
Components: SERVICE BRAKES, AIR:SUPPLY:HOSES, LINES/PIPING, AND FITTINGS
Model years in this recall
NHTSA complaints and the number of recall campaigns for each model year this recall covers.
| Model | Year | Complaints | Recalls |
|---|---|---|---|
| Dorsey Dfvpd | 1993 | 0 | 1 |
| Dorsey Dfvpd | 1994 | 0 | 1 |
Other service brakes, air recalls in 1993
6 of the 223 recall campaigns reported to NHTSA in 1993 concerned the service brakes, air; DORSEY TRAILERS, INC. filed 18 campaigns in all.
| 93V133000 11 Aug 1993 | DORSEY TRAILERS, INC. |
| 93V081000 17 May 1993 | BLUE BIRD BODY COMPANY |
| 93V069000 26 Apr 1993 | FREIGHTLINER CORP. |
| 93V070000 26 Apr 1993 | FREIGHTLINER CORP. |
| 93V020000 9 Feb 1993 | FREIGHTLINER CORPORATION |
NHTSA recalls (public domain) · all recalls of 1993