1981 Mack R600 Recalls

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NHTSA Campaign Number: 81V086000
Manufacturer: Mack Trucks, Inc.
Manufactured Begin Date: January 1st, 1981
Manufactured End Date: June 1st, 1981
Date of Owner Notification: May 4th, 1984

Defect Summary:
THE INVOLVED TRUCKS HAVE PITMAN ARMS WITH TIMING MARKS AND SERRATIONS LOCATED 8 DEGREES OUT OF PROPER ALIGNMENT. WHEN THE CHASSIS IS RAISED TO THE MAXIMUM CONDITION WITH THE WHEELS SUSPENDED OR DROPPED INTO A DEEP HOLE, THE PITMAN ARM AND DRAG LINK CAN GO INTO TOGGLE POSITION.

Corrective Summary:
UPON INSPECTION, ALL DEFECTIVE PITMAN ARMS WILL BE REPLACED WITH PROPERLY TIMED ARMS.

Recall Notes:
VEHICLE DESCRIPTION: TRUCKS EQUIPPED WITH LEFT HAND STEERING AND 9QC3239-P3PITMAN ARM.SYSTEM: STEERING; STEERING GEAR LEVER (PITMAN ARM).CONSEQUENCES OF DEFECT: UNDER THESE CONDITIONS THE STEERING WOULD LOCK,RESULTING IN LOSS OF VEHICLE CONTROL AND, POSSIBLY, AN ACCIDENT.