The defect
THE CHECK VALVE, LOCATED ON THE INLET SIDE OF THE PRIMARY AND SECONDARY AIR TANKS MAY CRACK IN THE FEMALE FITTING AREA AND CAUSE A SLOW LOSS OF AIR. A LEAKING VALVE WILL REDUCE AIR PRESSURE AND PARTIAL OR COMPLETE LOSS OF BRAKES ON THOSE AXLES THAT DEPEND UPON THAT PART OF THE SYSTEM COULD OCCUR.
The remedy
THE DEALER WILL INSPECT AND, IF NECESSARY, INSTALL NEW AIR CHECK VALVES.
NHTSA's own wording · initiated by MFR
Vehicles covered
| Model | Model years |
|---|
Components: SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
Other service brakes, air recalls in 1978
32 of the 272 recall campaigns reported to NHTSA in 1978 concerned the service brakes, air; FREIGHTLINER CORP. filed 116 campaigns in all.
| 78V260000 4 Dec 1978 | INTERNATIONAL HARVESTER |
| 78V241000 25 Oct 1978 | HENDRICKSON MFG. CO. |
| 78V235000 23 Oct 1978 | POLAR COMPANY |
| 78V231000 20 Oct 1978 | PIKE TRAILER COMPANY |
| 78V234000 20 Oct 1978 | DORSEY TRAILERS, INC. |
| 78V230000 20 Oct 1978 | BUTLER MANUFACTURING |
| 78V233000 20 Oct 1978 | BUDD COMPANY |
| 78V232000 20 Oct 1978 | WALKER EQUIPMENT |
NHTSA recalls (public domain) · all recalls of 1978