Controls: foot control/valveRecall 89V-178 · 1989 Mack CH
MACK TRUCKS, INCORPORATED recall 89V-178 covers 3,652 1989 Mack CH for a controls: foot control/valve problem, reported to NHTSA on October 23, 1989.
Source: NHTSA recall 89V178000 and manufacturer quarterly reports. Started by the manufacturer.
What's wrong
The problem
INTERNAL COMPONENTS OF THE E-12 DUAL CIRCUIT AIR BRAKE VALVES MAY BE MISASSEMBLED SO THAT ONE OF THE TAPERED SNAP RINGS IS UPSIDE DOWN.
The risk
THE SNAP RING CAN COME OUT CAUSING THE VALVE TOMALFUNCTION AND APPLY THE TRUCK'S BRAKE SYSTEM WITHOUT WARNING; THIS COULDRESULT IN LOSS OF CONTROL AND A CRASH.
What to do
The fix
REPLACE MISASSEMBLED VALVES.
SYSTEM: AIR BRAKE VALVES.VEHICLE DESCRIPTION: TRUCKS
Recall repairs are free. Confirm whether this recall is open on your vehicle by entering its VIN at nhtsa.gov/recalls.