Contacts
Mack campaign no n/a. Trucks with dual brake treadle valve piping sept. 1974And mar. 31, 1975. Possibility that the primary and secondary air supplylines may have been connected in reverse at the dual brake treadle valve. Thereversing of these supply lines does not in itself, affect vehicle braking ifboth the primary and secondary air supply systems have normal operating airpressure. However, in the event of loss of air pressure in either the primaryor secondary system, neither the primary nor secondary service brakes wouldfunction when applied. In this event, it would require manual application ofthe emergency spring brake to stop vehicle. (Correct by inspecting andrerouting air supply piping as required to correct system).
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 75V192000.
- 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.