SOUTHWEST UNSPECIFIED 1974: SERVICE BRAKES, AIR:DISC:CHAMBER
NHTSA Campaign ID Number: 78V215000
| Make | Model | Year |
|---|---|---|
| SOUTHWEST | UNSPECIFIED | 1974 |
| Date Owners Notified | Date Received by ODI | Date Added to Database |
| 1978-09-27 | 1978-10-10 | 1979-10-12 |
Production Dates: 1974-10-01 - 1977-09-01
Manufacturers Involved: SOUTHWEST TRUCK BODY CO.
Component: SERVICE BRAKES, AIR:DISC:CHAMBER
Potential Number Of Units Affected: 781
Report Initiator: ODI ODI Report
ANTI-LOCK BRAKE FAILURE COULD OCCUR DUE TO EXPOSURE TO HIGH CONCENTRATIONS OF FLUID CONTAMINANTS WHICH MAY COLLECT IN THE TRAILER BRAKING SYSTEM. THIS CONDITION COULD RESULT IN THE PISTON STICKING IN THE TRAILER ANTI-LOCK VALVE. CONSEQUENTLY, NO AIR WILL BE DELIVERED TO THE BRAKE CHAMBERS SUPPLIED BY THE ANTI-LOCK VALVE. LACK OF AIR TO THE AIR CHAMBERS MAY RESULT IN A "NO BRAKE" CONDITION ON THE AFFECTED AXLE"S".
DEALER WILL INSPECT AND, IF NECESSARY, INSTALL REPLACEMENT VALVES WITHOUT CHARGE TO OWNER.
VEHICLE DESCRIPTION: TRUCKS.SYSTEM: SERVICE BRAKES; ANTI-LOCK AIR VALVES.CONSEQUENCES OF DEFECT: LOSS OF BRAKING ACTION COULD RESULT IN LOSS OF VEHICLECONTROL AND AN ACCIDENT.NOTE: ANY FLUIDS SHOULD BE DRAINED FROM THE TRAILER BRAKE SYSTEMS DAILY. FLUIDSSHOULD NOT BE ADDED DIRECTLY INTO THE TRAILER BRAKE LINES.
