24 recalls found. |
DEFECT #1 - SUSPENSION:REAR:SPRINGS
Posted on: 1989-06-05
Description
Incorrectly welded suspension brackets to the axle housing may cause premature failure of the holding bracket weld.
Consequence
A failure of the axle/bracket weld may permit the axleto move from its intended position on the vehicle affecting vehicle control.this could result in an accident.
Corrective Action
Inspect and repair or replace axles which contain the defect. Also, as a precaution for safe operation, a temporary containment device which will maintain safe vehicle control in the event that an axle bracket weld fails.
Notes
System: rear drive axle suspension brackets.vehicle catagory: intra city coaches.
DEFECT #2 - SUSPENSION:REAR:AXLE:SPINDLE
Posted on: 1989-04-05
Description
Fracture of the spindle end and separation of the dual wheels from the vehicle.
Consequence
Wheel separation would not affect the control orstability of the tractor/trailer since other axles would support the vehicle.the separation would constitute a hazard to other roadway users, bystandersand adjacent property.
Corrective Action
Inspect and replace axle where necessary.
Notes
System: axle.vehicle category: autohauler vehicle, equipped with tk or tn axles.
DEFECT #3 - SUSPENSION:REAR:AXLE:SPINDLE
Posted on: 1990-05-18
Description
A number of factors could cause longitidunal and - or transverse cracks in the spindle end that could lead to spindle end failure and separation of wheels from vehicle.
Consequence
Wheel separation could occur affecting vehicle control and stability as well as presenting a hazard to other highway users, bystanders, and property.
Corrective Action
Replace axles with axles manufactured with buttweld spindles, rather than original integral spindles.
Notes
System: non-driving rear tractor axles.vehicle category: tractor trailers equipped with tk and tn tractor axles and 15 inch three spoke wheels.
DEFECT #4 - STEERING:LINKAGES
Posted on: 1990-06-19
Description
Steering arm may fracture due to environmental, maintenance, or other factors.
Consequence
Steering arm could fail without warning, resulting in loss of steering control and possibly a crash.
Corrective Action
Install redsigned steering arm.
Notes
System: steering arm.vehicle category: heavy duty trucks; transit mixers and refuse haulers equipped with fl, fds,and fr series steering arms.
DEFECT #5 - SERVICE BRAKES, AIR:DRUM:DRUM
Posted on: 1988-04-19
Description
Original specified rear brake drums are inadequate in strength for brake loads being imposed on these drums.
Consequence
This increased duty cycle has caused premature componentfailure of the brake drums due to cracking and breaking. This could result ina risk to traffic safety.
Corrective Action
Replacement of rear brake drums, rear spring brake chambers and the front service chambers.
Notes
Vehicle category: heavy trucks.
DEFECT #6 - STEERING:LINKAGES:TIE ROD ASSEMBLY
Posted on: 1990-12-31
Description
Improper heat treatment of tie rod arms causes arms to be subject to yielding and fatigue cracks.
Consequence
Tie rod arm could fracture and cause loss of vehicle control, which could result in an accident.
Corrective Action
Replace tie rod arms with arms that have been heat treated to the proper specifications.
Notes
System:steering; tie rod arms ; part nos.3133-d-1538, e-1539, x-5640, y-5641.vehicle category: transit coaches.
DEFECT #7 - SUSPENSION:REAR:AXLE:NON-POWERED AXLE ASSEMBLY
Posted on: 1989-01-30
Description
Due to metal fatigue, cracking and breaking of the front axle beam center could occur.
Consequence
Should fatigue crack in the beam completely break orrupture during normal operation it could lead to loss of control and thepossibility of vehicle crash.
Corrective Action
The axle beam centers will be replaced on all involved vehicles.
Notes
System: axlevehicle category: heavy trucks.
DEFECT #8 - STEERING:LINKAGES
Posted on: 1991-06-20
Description
Due to operational conditions, steering arms could crack and break.
Consequence
Steering arm failure causes loss of steering controlwithout warning resulting in loss of vehicle control and in the possibility ofan accident.
Corrective Action
Replace steering arm with one redesigned to enhance fatigue life of arm.
Notes
System: steering arms (non-keystone).vehicle description: rear load refuse collection vehicles.
DEFECT #9 - STEERING:LINKAGES
Posted on: 1991-06-20
Description
Steering arms crack and break from pressures exerted in operations in urban traffic environemnts.
Consequence
Cracked and broken steering arms can result in loss ofsteering control without warning and possible vehicle accident.
Corrective Action
Notification will be sent to manufacturers and users to replace the steering arm after ten years service.
Notes
System: steering arms: all non-keystone steering arms and installed invehicles equipped with single arm power steering engaged in fire service.vehicle description: fire trucks.
DEFECT #10 - STEERING:LINKAGES:KNUCKLE:SPINDLE:ARM
Posted on: 1985-03-11
Description
Front axle beams contain shear cracks at the beam ends where the king pins and steering knuckles are attached. Consequence of defect: if failure of the axle beams as part of the front steering axle should occur, the components attached to the beams including wheels, tires, brake assemblies and steering knuckles may become disengaged from the vehicle, and roll free with a risk to traffic safety. The vehicle may lose steering control, causing vehicle instability and potential for vehicle crash. This failure could occur without prior warning to the operator.
Consequence
Corrective Action
Replacement of any and all components. Found to be defective at no cost to the consumer.
Notes
Vehicle description: heavyduty trucks, truck tractors, buses. System: 12000 and 13200 lbs. Gawr front axle assembly/steering.
DEFECT #11 - SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY:HANGER/BRACKET
Posted on: 1987-04-30
Description
The spring hanger bracket may contain incorrect welds.
Consequence
The brackets may become loose after extended operation.this looseness could result in breakage and axle separating from the vehicle,resulting in a risk to traffic safety and potential vehicle crash.
Corrective Action
Install set screws in the side legs of the bracket, four per bracket and welded in place.
Notes
System: axle.vehicle category: heavy duty trucks.
DEFECT #12 - STEERING:LINKAGES:KNUCKLE:SPINDLE:ARM
Posted on: 1986-06-12
Description
The brake mounting nuts which fasten the two brake assemblies to the axle knuckle on the front steering axle assemblies or the wheel end kits were not properly tightened. Consequence of defect: if sufficient loosening of the brake assemblies should occur during vehicle movement, brake drag, possible severe heat build-up or wheel lockup could occur, causing decreased steering control, vehicle instability and a potential for vehicle crash.
Consequence
Corrective Action
Inspect and retorque mounting nuts to insure proper tightness.
Notes
Vehicle category: trucks and buses. System: steering/axle.
DEFECT #13 - SUSPENSION:FRONT:HUB
Posted on: 1979-10-12
Description
Consequence
Corrective Action
Notes
Front axle aluminum hubs.part no.33-m-2197.forging no readily identifiedon hub - 433-f-2138.possibility that a design deficiency exists in the forgedaluminum hub in the barrel between the inner and outer bearing which may resultin cracks and ultimately lead to failure of the hub.when a failure occurs,the hub is retained on axle spindle by wheel bearing adjusting adjusting.nut.continued operation after hub excessive brake lining heating which could causetire to blow could cause tire to blow or fire, with loss of vehicle control.(correct by replacing hub where necessary).
DEFECT #14 - SUSPENSION:FRONT:HUB
Posted on: 1979-10-12
Description
Consequence
Corrective Action
Notes
Possibility that a design deficiency exists in the forged aluminum hub in thearea of the wheel mounting flange which mayresulttest in cracks and couldultimately lead to hub failure.if a failure occurs, the flange along with thewheel and tire becomes disengaged from vehicle and rolls free in anuncontrolled manner.failure of the hub could also lead to a loss of vehiclecontrol without prior warning to the operator.(correct by aluminum hubs).
DEFECT #15 - WHEELS:MULTI PIECE
Posted on: 1979-10-12
Description
On the involved vehicles, casting deficiences exist in the area of the wheel mounting flange or the inner wheel bearing. When a flange failure occurs, the flange, along with the wheel and tire, become disengaged from the vehicle and may roll free. When a barrel section failure occurs, the hub is retained on the axle spindle by the wheel bearing adjusting nut. Continued operation may then lead to hub failure, progressive damage to the hub, and eventually, separation of the hub, with the wheel and tire, from the vehicle.
Consequence
Corrective Action
Dealer will inspect and replace all defective hubs with hubs of an improved design, without charge.
Notes
Vehicle category: trucks.system: wheels; aluminum hub, part no. 333a911.consequences of defect: loss of a wheel assembly during vehicle operation couldresult in loss of vehicle control and an accident.
DEFECT #16 - WHEELS
Posted on: 1979-10-12
Description
Cracks may develop in the radial spokes near the hub. These cracks could propagate and may eventually cause hub failure. Hub failure could allow the wheel to separate from the vehicle.
Consequence
Corrective Action
The dealer will replace the defective wheels.
Notes
Vehicle category: passenger vehicles.system: suspension; cast aluminum wheels, part no. 30-5650.consequences of defect: should separation occur during vehicle operation, lossof vehicle control and an accident could occur.
DEFECT #17 - WHEELS:MULTI PIECE
Posted on: 1979-10-12
Description
The involved aluminum hubs may develop cracks in the barrel between the inner and outer bearing, which could lead to hub failure. Upon failure, the separated hub is retained on the axle spindle by the wheel bearing adjusting nuts.
Consequence
Corrective Action
Dealer will inspect and replace suspect front wheel hubs without charge to owner.
Notes
Vehicle category: trucks.system: wheels; front wheel aluminum hubs, part no. 333p2304.consequences of defect: continued operation after hub failure could result in atire blow out or could allow the tire and wheel to separate from the vehicle.in either case, loss of vehicle control and an accident may occur.note: an audible sound along with thumping or wheel wobble may alert the driverto hub separation.
DEFECT #18 - POWER TRAIN:AXLE ASSEMBLY:BANJO HOUSING
Posted on: 1979-10-12
Description
Consequence
Corrective Action
Notes
Rockwell l series axles are involved.possibility that axle housings may havea deficiency as a result of the friction weld location relative to the oil sealjournal radius.a deficiency in this location may cause cracks that couldultimately lead to failure of the spindle.if a failure occurs, the spindlewith its assembled parts consisting of a hub, drum, bearings, wheels and tiresbecome disengaged from vehicle and may roll free in an uncontrolled mannerwithout warning to the driver.(correct by inspecting and replacing with newhousing assemblies).
DEFECT #19 - WHEELS:CAP/COVER/HUB
Posted on: 1979-10-12
Description
The involved hubs may develop cracks in the area of the wheel mounting flange. Eventually, the hub could fail causing the flange along with the wheel and tire to become disengaged from the vehicle and roll in an uncontrolled manner.
Consequence
Corrective Action
Dealer will inspect and replace suspect front axle hubs without charge.
Notes
Vehicle category: heavy trucks.system: wheels; rockwell malleable hubs, part no. 333-v-1036.consequences of defect: hub failure could result in loss of vehicle control andan accident.note: vehicles should be inspected and any vehicle with a cracked hub flangeshould be removed from service until the hub is replaced.
DEFECT #20 - WHEELS
Posted on: 1979-10-12
Description
The involved vehicles may have been equipped with defective hubs in that they may develop cracks which could lead to hub failure.
Consequence
Corrective Action
Dealer will inspect and replace defective hubs without charge to owner.
Notes
Vehicle category: trucks.system: wheels; malleable iron hubs, part nos. 333-q-2383, t-2438, and c-2551.consequences of defect: the hub will be retained on the axle spindle followingfailure, but continued vehicle operation will result in separation of the hub,wheel, and tire from the vehicle. This could cause loss of vehicle control andan accident.note: warnings of hub failure include wheel wobble, shimmy, or front wheelvibration.
DEFECT #21 - SERVICE BRAKES, AIR:ANTILOCK
Posted on: 1979-10-12
Description
Consequence
Corrective Action
Notes
Possibility axle assemblies equipped with wheel anti lock systems have beenassembled with an improper sensor to rotor gap caused by incorrectly adjustedwheel bearings and or improper positioned sensors, at low velocity, pulses maybe transmitted to anti lock computer which are falsely indicative of a wheellock up condition.if this should occur, by system design an air controlsolenoid will begin switching, and if this occurs during a braking application,reduction in retarding force may result on the affected axle and lengtheningthestopping distance with a sudden brake application at the end of the stop.(correct by inspecting and adjusting wheel bearing on all axles equipped withanti-lock systems).
DEFECT #22 - SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE
Posted on: 1979-10-12
Description
Consequence
Corrective Action
Notes
Skidtrol wheel antilock computers.possibility that incorrect back up fuseswere installed in the computer, in the event that fail safe portion of thesystem on an axle dictates a return to manual brakes, the system may failtoprovide indicator warning to the driver.the affected axle will be operatingwithout anti lock protection and without the driver's knowledge.(correct byinspecting and replacing fuses).
DEFECT #23 - STEERING:WHEEL AND HANDLE BAR
Posted on: 1982-04-05
Description
Some universal joint yokes were forged with incorrect steel, resulting in brittle welds between the yoke and its mating shaft. Field service loads may cause failure of the weld and cause the yoke to separate from its shaft.
Consequence
Corrective Action
The manufacturer will provide a replacement yoke or replacement yoke and shaft without charge to owner.
Notes
Vehicle category: heavy trucks.system: steering; universal joint yokes, part no. L6n72f.consequences of defect: if the yoke separates from its shaft, loss of steeringcontrol would result and could cause an accident.
DEFECT #24 - POWER TRAIN:AXLE ASSEMBLY:BANJO HOUSING
Posted on: 1984-10-09
Description
Consequence
Corrective Action
Axle and identification tags will be inspected; if the defect is found, defective housing and any parts necessary to reinstall the carrier in the housing will be replaced without charge.
Notes
Vehicle category: heavy trucks; on/off highway specialty trucks.system: steering; front drive steering axle housings.desccription of defect: welds that join suspension components to the axle mayhave been improperly fused. In most cases, the defect will cause axle lubricantto leak in an area adjacent to the spring seat pads. Under normal operatingconditions, the weld could crack without prior warning.consequences of defect: a cracking of the weld will cause the componentsattached to it (wheels, tires, brake drums, etc.) to roll free, causing a riskto traffic safety and possible vehicle crash and personal injury.note: detection of leaking axle lubricant should be followed by immediatelyremoving the vehicle from service. (this warning sign will not always appear.)