Recalls for 1987 Mack Cf

DEFECT #1 - VEHICLE SPEED CONTROL

Posted on: 1994-03-01
Description
Fuel injection system reconfiguration to comply with engine emission standards cause higher engine vibration levels which lead to early wear and complete failure of the secondary throttle return mechanism.

Consequence
In the event the primary throttle return fails, failure of the secondary throttle return system would not provide protection against loss of throttle control.

Corrective Action
A new production secondary throttle return system configuration will be installed.

Notes
System: fuel; fuel pump.vehicle description: class 8 trucks equipped with e6 and e7 engines with robert bosch p7100 mechanically-governed fuel injection pumps.note: if your vehicle is presented to an authorized dealer on an agreed upon service date and the remedy is not provided within a reasonable time and free of charge or the remedy does not correct the defect or noncompliance, please contact the national highway traffic safety administration's auto safety hotline at 1-800-424-9393.

DEFECT #2 - STEERING:LINKAGES

Posted on: 1991-05-15
Description
Stresses imposed on the lever during turning maneuvers and/or impact incidents, such as would be caused by curbs or road surface irregularity, reduce the life expectancy of the part.  The steering lever may crack and eventually the stresses could cause the steering lever to break.

Consequence
A broken steering lever will cause loss of steeringcontrol without prior warning which may result in a vehicle crash.

Corrective Action
Replace the defective steering arms.

Notes
System: steering levers.vehicle description: cf model fire chassis with gross axle weight ratings of12,000 pounds or greater and equipped with power steering.note: the specific mack axles affected are: fa532, faf532, fafw537, fafw5372,fafw13.5, faw538, faw14.3, fa604, fa6042, faw616, faw618, faw617, and faw20.

DEFECT #3 - STEERING:GEAR BOX (OTHER THAN RACK AND PINION)

Posted on: 1990-06-26
Description
Welding deficiencies can cause two-piece steering gear mounting bracket to progressively separate.

Consequence
This could result in loss of steering control, withoutprior warning, and a vehicle crash.

Corrective Action
Replace steering gear mounting brackets with properly welded brackets.

Notes
System: steering gear mounting bracket.vehicle description: fire trucks.

DEFECT #4 - WHEELS

Posted on: 1988-10-11
Description
Fasteners that hold the rear wheel to the hub and drum assembly may be improperly torqued.

Consequence
An undertorqued fastener will loosen up and can result inwheel separation, loss of control, and an accident.

Corrective Action
Properly torque rear wheel space fasteners.

Notes
System: rear wheel spacer fasteners.vehicle description: heavy duty trucks.

DEFECT #5 - STEERING:LINKAGES

Posted on: 1987-12-04
Description
Cross steering levers may be improperly heat treated and subject to fail during normal operation.

Consequence
Such failure could cause loss of truck control withoutprior warning and result in a crash.

Corrective Action
Install new, properly heat treated steering lever.

Notes
System: cross steering levervehicle description: heavy duty trucks with mack faw 616 or 617 series frontaxle.