1987 Mack Mr Series Recalls

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NHTSA Campaign Number: 88V153000
Manufacturer: Mack Trucks, Inc.
Manufactured Begin Date: December 1st, 1986
Manufactured End Date: September 1st, 1987
Date of Owner Notification: September 22nd, 1988

Defect Summary:
FASTENERS THAT HOLD THE REAR WHEEL TO THE HUB AND DRUM ASSEMBLY MAY BE IMPROPERLY TORQUED.

Consequence Summary:
AN UNDERTORQUED FASTENER WILL LOOSEN UP AND CAN RESULT INWHEEL SEPARATION, LOSS OF CONTROL, AND AN ACCIDENT.

Corrective Summary:
PROPERLY TORQUE REAR WHEEL SPACE FASTENERS.

Recall Notes:
SYSTEM: REAR WHEEL SPACER FASTENERS.VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS.

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NHTSA Campaign Number: 88V154000
Manufacturer: Mack Trucks, Inc.
Manufactured Begin Date: January 1st, 1987
Manufactured End Date: April 1st, 1987
Date of Owner Notification: September 22nd, 1988

Defect Summary:
THE UNDERSIZED WELD ON THE REAR SUSPENSION BRACKETRY ATTACHMENT CAN CAUSE BRACKET FAILURE.

Consequence Summary:
BRACKET FAILURE CAN ALLOW THE SPRING ASSEMBLY TO BERELEASED ONTO THE ROADWAY, POSSIBLY RESULTING IN LOSS OF CONTROL AND ANACCIDENT.

Corrective Summary:
REPLACE ANY HOUSINGS THAT HAVE SINGLE PASS (UNDERSIZED) WELDS ON THE BRACKETRY ATTACHMENT.

Recall Notes:
SYSTEM: REAR AXLE HOUSING.VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS.

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NHTSA Campaign Number: 87V179000
Manufacturer: Mack Trucks, Inc.
Manufactured Begin Date: July 1st, 1987
Manufactured End Date: August 1st, 1987
Date of Owner Notification: August 16th, 1988

Defect Summary:
CROSS STEERING LEVERS MAY BE IMPROPERLY HEAT TREATED AND SUBJECT TO FAIL DURING NORMAL OPERATION.

Consequence Summary:
SUCH FAILURE COULD CAUSE LOSS OF TRUCK CONTROL WITHOUTPRIOR WARNING AND RESULT IN A CRASH.

Corrective Summary:
INSTALL NEW, PROPERLY HEAT TREATED STEERING LEVER.

Recall Notes:
SYSTEM: CROSS STEERING LEVERVEHICLE DESCRIPTION: HEAVY DUTY TRUCKS WITH MACK FAW 616 OR 617 SERIES FRONTAXLE.