Disc: chamberRecall 78V-230 · 1975–1977 Butler Highway Tank Trailers
BUTLER MANUFACTURING recall 78V-230 covers 793 1975–1977 Butler Highway Tank Trailers for a disc: chamber problem, reported to NHTSA on October 20, 1978.
Source: NHTSA recall 78V230000 and manufacturer quarterly reports. Started by an NHTSA defect investigation.
The problem
THE PISTON IN THE ANTILOCK VALVE COULD STICK DUE TO EXPOSURE TO HIGH CONCENTRATIONS OF FLUID CONTAMINANTS THAT MAY COLLECT IN THE TRAILER BRAKING SYSTEM. CONSEQUENTLY, NO AIR WOULD BE DELIVERED TO THE BRAKE CHAMBERS NORMALLY SUPPLIED BY THAT VALVE. THIS COULD RESULT IN A "NO BRAKE" CONDITION ON THE AFFECTED AXLES. THIS CONSTITUTES A NON-COMPLIANCE TO FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS".
The fix
THE DEFECTIVE VALVE WILL BE REPLACED WITHOUT CHARGE.
VEHICLE DESCRIPTION: TANK TRAILERS.SYSTEM: SERVICE BRAKES; ANTILOCK AIR VALVE.CONSEQUENCES OF DEFECT: LOSS OF BRAKING CAPABILITY COULD RESULT IN A VEHICLEACCIDENT.NOTE: UNTIL THE VALVE IS REPLACED, ANY FLUIDS SHOULD BE DRAINED FROM THE BRAKESYSTEM DAILY AND FLUIDS SHOULD NOT BE ADDED DIRECTLY INTO THE BRAKE LINE.
Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.
Vehicles in this recall
Built from February 1, 1975 to December 1, 1977. Not every vehicle in these model years is included; check by VIN.
The investigation behind this recall
- AIR CON VALVE STICKINGNHTSA