RoadVitals

NHTSA safety recall

Recall 81V088000: SERVICE BRAKES, AIR:CONTROLS:HAND CONTROL/VALVE

MACK TRUCKS, INCORPORATED · Reported to NHTSA Jul 8, 1981

Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.

Check a VIN on NHTSA.gov
Units potentially affectedThe manufacturer's own estimate of how many vehicles or items of equipment may contain the defect. It is not a count of failures, and not every unit in the range is necessarily affected.
10,000
Model years coveredModel years in our database that NHTSA matched to this campaign. Whether an individual vehicle is covered still depends on its VIN.
8
Models covered
4
Grouped from the model years above
Reported to NHTSA
Jul 8, 1981
Production Jul 1, 1979 – Jan 1, 1980

What this recall covers

NHTSA's campaign record, quoted as published

The defect

THE RETAINING PIN FOR THE BRAKE CONTROL KNOB HAS BEEN MISALIGNED (OFF THE CENTER LINE OF THE VALVE PLUNGER HOLE). THIS CAUSES THE KNOB TO BE OVERSTRESSED AT THE RETAINING PIN HOLE AREA CAUSING IT TO SEPARATE FROM THE VALVE.

The remedy

THE HOLES WILL BE RETOOLED TO PROVIDE CORRECT ALIGNMENT AND PLASTIC KNOBS WILL BE REPLACED BY KNOBS OF STRONGER MATERIAL HAVING METAL REINFORCEMENTS.

Notes

VEHICLE DESCRIPTION: TRUCKS EQUIPPED WITH BRAKE CONTROL KNOBS.SYSTEM: SERVICE BRAKES; KNOB RETAINING PIN.CONSEQUENCES OF DEFECT: WITH THE KNOB BROKEN OFF, THE CONTROL VALVE WOULDBECOME DIFFICULT OR IMPOSSIBLE TO OPERATE. ONE OR A COMBINATION OF BRAKEAPPLICATIONS WOULD NOT BE POSSIBLE AND THE VEHICLE COULD BE PARKED IN AN UNSAFECONDITION. AN ACCIDENT AND PERSONAL INJURY COULD RESULT.

A safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.

Campaign details

Identifiers and dates as filed with NHTSA

Manufacturer
MACK TRUCKS, INCORPORATED
Manufacturer's campaign number
Not recorded
NHTSA campaign number
81V088000
Units potentially affected
10,000
Report received
Jul 8, 1981
Production range
Jul 1, 1979 – Jan 1, 1980
Campaign type
Vehicle
Federal safety standard (FMVSS)
Not recorded

Vehicles covered

8 model years across 4 models

Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.