8 recalls found. |
DEFECT #1 - 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 #2 - STEERING:WHEEL AND HANDLE BAR
Posted on: 1985-12-04
Description
The splined steering shaft may not be sufficiently engaged as designed due to inaccurate drilling of the holes in the frame to which the cab front mount member is bolted. Under certain conditions the steering shaft may disengage. Consequence of defect: a jarring impact might cause disengament of the splined shaft resulting in loss of steering control and possibly an accident.
Consequence
Corrective Action
Replace shafts which measure under the minimum engagement dimensions with longer shaft.
Notes
System: steering shaft. Vehicle description: fire trucks.
DEFECT #3 - STEERING:WHEEL AND HANDLE BAR
Posted on: 1983-04-27
Description
On the involved vehicles the floorboard opening and the steering column seal bracket do not have sufficient clearance to allow the shaft to turn freely. This causes the pinch bolt to bind or lock against the seal bracket.
Consequence
Corrective Action
The hole in the floorboard will be enlarged to allow sufficient clearance of the steering column u-joint pinch bolt, and a new bracket and lamp will be installed at no charge to owner.
Notes
Vehicle description: fire fighting equipment chassis equipped with sgp48steering gears.system: steering; steering column shaft u-joint clearances.consequences of defect: there will be little or no wheel return; loss ofsteering control without prior warning could result in an accident.
DEFECT #4 - STEERING:LINKAGES:KNUCKLE:SPINDLE:ARM
Posted on: 1979-10-12
Description
The existing cross steering arms may have insufficient fatigue life in the neck area. This is near the boss for the cross steering tube ball joint connection. Failure of either of the cross steering levers could lead to loss of steering control of the right front wheel.
Consequence
Corrective Action
The dealer will inspect and, if necessary, install cross steering arms of improved design and greater strength.
Notes
Vehicle description: truck tractors.system: steering; steering arm.consequences of defect: loss of steering control could lead to loss of vehiclecontrol and an accident.
DEFECT #5 - ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN
Posted on: 1979-10-12
Description
The flex blade fans on the involved vehicles may develop cracks in the laminated stiffener as a result of fatigue during operation. If such a condition exists and the cracks go undetected, continued operation could cause pieces of the stiffener to break off.
Consequence
Corrective Action
Dealer will replace the original fan with a steel fixed blade fan, free of charge.
Notes
Vehicle description: trucks equipped with six-cylinder engines.system: engine cooling; fan.consequences of defect: broken pieces can be propelled outside of the fanshroud and will present an immediate danger and possible injury to personsstanding nearby.note: prior to correction, vehicle should not be serviced with the hood raisedand the engine running.
DEFECT #6 - SEAT BELTS:FRONT:ANCHORAGE
Posted on: 1979-10-12
Description
The involved vehicles do not conform to federal motor vehicle safety standard no. 209, seatbelt assemblies. Although the seatbelts in question performed marginally with respect to the 5000 lb. Load requirement, additional testing confirmed that the anchor could fail, allowing either the anchor to slip over the hold-down nut or the anchor to separate into two pieces.
Consequence
Corrective Action
Dealer will inspect and, if necessary, replace seat belt assemblies without charge to owner.
Notes
Vehicle description: trucks.system: interior; seat belt anchorage assembly.consequences of defect: in the event of an accident, these seat belts may notadequately restrain passengers and serious injuries may result.
DEFECT #7 - WHEELS
Posted on: 1979-10-12
Description
The front wheel rim clamp studs, installed on the involved vehicles, may not have been manufactured correctly, causing a brittle condition in the thread root area. The studs could eventually crack and break when wheel nuts are tightened to specifications.
Consequence
Corrective Action
The dealer will replace all suspect front wheel studs, without charge to owner.
Notes
Vehicle description: heavy trucks.system: wheels; studs.consequences of defect: wheel stud failure could cause a loosened tire assemblyand impaired vehicle control. Failure of more than one stud could causeseparation of the tire and rim assembly, causing loss of vehicle control and anaccident.note: driver may be alerted to the condition by a wobble or vibration in theaffected wheel.
DEFECT #8 - STEERING:WHEEL AND HANDLE BAR
Posted on: 1982-01-08
Description
The floorboard opening and the steering column seal bracket may not allow sufficient clearance for the shaft to turn freely in the center of the bracket/seal. The pinch bolt in the column yoke may bind or lock the column against the bracket, allowing little or no wheel return.
Consequence
Corrective Action
Dealer will enlarge the hole in the floorboard to provide clearance for the steering column u-joint pinch bolt. A new bracket and clamp will also be installed without charge to owner.
Notes
Vehicle description: truck fire chassis equipped with sgp48 steering gear.system: steering; u-joint, floorboard.consequences of defect: if the steering assembly locks in place, loss ofvehicle control, without warning, and an accident could result.