MACK RS 1974: SERVICE BRAKES, AIR:DRUM:DRUM
NHTSA Campaign ID Number: 75V060000
| Make | Model | Year |
|---|---|---|
| MACK | RS | 1974 |
| Date Owners Notified | Date Received by ODI | Date Added to Database |
| 1975-08-05 | 1975-04-15 | 1979-10-12 |
Production Dates: 1974-06-01 - 1978-03-01
Manufacturers Involved: Mack Trucks, Inc.
Component: SERVICE BRAKES, AIR:DRUM:DRUM
Potential Number Of Units Affected: 600
Report Initiator: MFR MFR Report
MACK CAMPAIGN NO N/A.TRUCKS MFG'D APRIL 1, 1974 THRU NOV.15, 1974.POSSIBILITY THAT ON MODELS WITH OUTBOARD-MOUNTED BRAKE DRUMS AND STEEL DISCWHEEL ON ALUMINUM WHEEL HUBS, THE MANUFACTURING TOLERANCES MAY CAUSE ANINTERFERENCE PROBLEM BETWEEN THE INSIDE PORTION OF WHEEL AND OUTER EDGE OF CASTDRUM.THIS CONDITION RESULTS IN OVERSTRESS OF WHEEL STUDS.THE FAILURE OFWHEEL STUDS COULD CAUSE SEPARATION OF DISC WHEEL FROM CHASSIS AND COULD CAUSELOSS OF VEHICLE CONTROL.'CORRECT BY INSPECTING AND ADJUSTING TO PRECLUDEINTERFERENCE WHERE NECESSARY'.
