Contacts
Mack campaign no sco-63. Trucks mfg'd dec. 12, 1974 Thru june 30, 1975.Possibility that the trailer supply control valve exhaust port was inadvertenlyplugged, and the safety valve on the air reservoir may have been omitted. Ifthis condition exists it could lead to intermittent lockup of the trailerbrakes and difficulty in charging the trailer brake air system. (Correct byinspecting and installing valve and unplug control valve).
What to do
- Check your VIN. Enter it at nhtsa.gov/recalls - it shows whether this recall applies to your vehicle and whether the repair has been done.
- Call a dealer. Any authorized Mack dealer will do the repair free, whether or not you bought the vehicle there. Quote campaign 75V141000.
- Ask about parts and a loaner. If parts aren't available yet, ask what to do in the meantime.
- Keep your paperwork. If you paid for this repair before the recall, you may be able to get reimbursed - here's how.