Hendrickson Recall 79V253000: Service Brakes, Air, Supply, Low Pressure Warning, Switch

NHTSA recall 79V253000 · announced November 15, 1979 · filed by Hendrickson Mfg. Co. · 1,246 units affected

The problem

THE LOW AIR PRESSURE SWITCHES USED ON SOME OF THE INVOLVED VEHICLES HAVE A MANUFACTURING TOLERANCE THAT ISSUES A WARNING ONLY WHEN THE PRESSURE DROPS A FEW POUNDS PER SQUARE INCH BELOW 60 PSI. AS A RESULT, THEY DO NOT COMPLY WITH FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE SYSTEMS".

What to do

IF THE OWNER, UPON RECEIPT OF A POST CARD, INDICATES A COMPLIANCE, THE DEALER WILL REIMBURSE OWNER $5.00 FOR COST OF TEST. IF OWNER INDICATES A NON-COMPLIANCE, THE DEALER WILL SEND TWO REPLACEMENT SWITCHES AND A CHECK FOR $5.00 TO COVER BOTH THE SYSTEM TEST AND SWITCH REPLACEMENT.

Official NHTSA recall notice →

Notes

VEHICLE DESCRIPTION: TRUCKS, DRILL RIGS, CRANE CARRIERS, AND SCHOOL BUSES.SYSTEM: SERVICE BRAKES; AIR PRESSURE WARNING SWITCHES.CONSEQUENCES OF DEFECT: IF THE LOW AIR PRESSURE WARNING SWITCH IS NOT ACTIVATEDAT PRECISELY 60 PSI, THE DRIVER WOULD NOT BE FOREWARNED OF POTENTIAL LOSS OFBRAKING ACTION. THIS COULD CONTRIBUTE TO A VEHICLE ACCIDENT.

Vehicles covered by this recall

• 1973 Hendrickson Hendrickson
• 1974 Hendrickson Hendrickson
• 1975 Hendrickson Hendrickson
• 1976 Hendrickson Hendrickson
• 1977 Hendrickson Hendrickson
• 1978 Hendrickson Hendrickson

Source: National Highway Traffic Safety Administration public recall data. This page reports official records and is not legal, medical, or repair advice.