MACK R SERIES 1988: POWER TRAIN:DRIVELINE:CENTER SUPPORT BEARING

General Information

NHTSA Campaign ID Number: 88V085000

Make Model Year
MACK R SERIES 1988
Date Owners Notified Date Received by ODI Date Added to Database
1988-05-05 1988-05-23 1988-05-26

Production Dates: 1987-11-01 - 1987-11-01

Manufacturers Involved: Mack Trucks, Inc.

Component: POWER TRAIN:DRIVELINE:CENTER SUPPORT BEARING

Potential Number Of Units Affected: 203

Report Initiator: MFR MFR Report

Summary

CLAMP PLATES USED BETWEEN THE DRIVE SHAFT AND CARRIER YOKES MAY CRACK AND COULD BREAK DUE TO IMPROPER HEAT TREATMENT.

Consequence

IF CLAMP PLATE BREAKS, YOKE WOULD FLY OFF AT DETACHEDPOINT AND COULD INJURY ANYONE STRUCK BY FLYING FRAGMENTS. ALSO, THE DETACHEDINNER SHAFT COULD INTERFERE WITH THE BRAKE SYSTEM AIR SUPPLY HOSES AND TRACTORTIRES, WHICH COULD RESULT IN LOSS OF TRUCK CONTROL AND AN ACCIDENT.

Remedy

INSTALL NEW CLAMPING PLATES AND CAPSCREWS IN ALL LOCATIONS AS NEEDED.

Notes

SYSTEM: DRIVE SHAFT YOKE CLAMP PLATES.VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS.