Recalls for 1987 Mack Mh

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 - SEAT BELTS:REAR

Posted on: 1989-03-03
Description
Seat tether belt 11.0 inches long was installed instead of the 8.5 inches long belt required for this chassis.

Consequence
Incorrect length belt may not properly restrain occupantand would not comply with fmvss 210.

Corrective Action
Install correct 8.5 inch seat tether belt.

Notes
System: seat tether belt/fmvss 210.vehicle description: heavy duty trucks with non sleeper cabs and with smartseat drivers seat.

DEFECT #3 - STEERING:LINKAGES

Posted on: 1988-01-06
Description
The pitman arm to drag link angle is out of phase.

Consequence
Under certain conditions, steering linkage could go intoa toggle condition resulting in a slow wheel return and impaired steeringcontrol, creating the potential for a vehicle crash without prior warning.

Corrective Action
Replace mismarked pitman arm.

Notes
System: pitman armvehicle description: heavy duty trucks with sheppard steering gear.

DEFECT #4 - SEAT BELTS

Posted on: 1988-09-19
Description
Seat tether belts may not have been adjusted during assembly.

Consequence
During an impact, driver and/or rider can move forwardand possibly strike the windshield, even when wearing a seat belt.

Corrective Action
Adjust seat tether belt if necessary.

Notes
System: seat tether belt.vehicle description: heavy duty trucks with air suspension seats.

DEFECT #5 - STEERING:LINKAGES

Posted on: 1987-11-04
Description
On right hand steering arm, keyway may be in the wrong location causing a toggle condition to occur under certain conditions.

Consequence
This could result in slow steering return without priorwarning which would affect steering control and create the potential for acrash.

Corrective Action
Replace incorrect steering arm.

Notes
System: steering armvehicle description: heavy duty trucks with dual steering gears.

DEFECT #6 - 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.