13 recalls found. |
DEFECT #1 - UNKNOWN OR OTHER
Posted on: 1981-12-22
Description
The set-screw may not be positioned correctly, allowing the drive key to slide out of the hub and the hub and sprocket to disengage. This would cause the wheelchair platform to fall to the ground without prior warning.
Consequence
Corrective Action
Wheelchair lift will be inspected for the correct positioning of the set-screw. If necessary, the drive key will be tack welded into the drive hex without charge.
Notes
Vehicle description: transit buses equipped with wheelchair lifts.system: equipment; wheelchair lift, set-screw.consequences of defect: if the platform gives way, serious personal injurycould result.
DEFECT #2 - ELECTRICAL SYSTEM:WIRING
Posted on: 1979-12-14
Description
It has been determined that the underfloor wire conduit attaching hanger assembly may fatigue and break under certain operating road conditions. Breaking of this assembly allows the wiring conduit to move freely at the unsupported end. This movement could cause chafing of the main power cables, creating the potential for an electrical short circuit. The wire conduit may also impact on the rear suspension u bolt attachment.
Consequence
Corrective Action
Dealer will install a more rigid conduit support bracket and will reconfigure the wiring and add a positioning clamp which will eliminate the potential for impact with the suspension u bolt attachment assembly. Dealer will also add a new conduit support bracket which will eliminate potential for fatigue or breakage of the attaching hanger assembly.
Notes
Vehicle description: buses, transit.system: electrical; wiring.consequences of defect: if a short circuit were to occur in the main powerleads, high temperatures could be generated, which could lead to a vehicle fireand personal injuries to passengers.
DEFECT #3 - SERVICE BRAKES, AIR:SUPPLY:HOSES, LINES/PIPING, AND FITTINGS
Posted on: 1979-12-19
Description
The nylon hose that connects the quick release valve and the anchor coupling at the rear of the front axle was found to be excessively long. When the bus executes extreme right and left turns, the curbside nylon brake hose interferes with the tire. This intermittent interference will cause the nylon hose to chafe and ultimately fail.
Consequence
Corrective Action
Dealer will inspect the nylon hose for chafing or interference and, if necessary, reroute the brake hose. This will be done at no cost to owner.
Notes
Vehicle description: buses, transit.system: service brakes; air hoses.consequences of defect: if these conditions are allowed to persist, air leakscould occur due to excessive chafing. Total front wheel brake failure and avehicle accident could result.
DEFECT #4 - ELECTRICAL SYSTEM:WIRING
Posted on: 1981-06-18
Description
Under certain operating road conditions, the power cables contained in a tube between the batteries and the engine can move freely. This movement could cause the main power cable to chafe, leading to an electrical short.
Consequence
Corrective Action
The present wiring channel will be replaced and insulating type supporting blocks will be added without charge to owner.
Notes
Vehicle description: transit buses.system: electrical system; battery cables.consequences of defect: a short circuit occurring in the main power cable couldnote: until the problem is corrected, electrical cables should be periodicallychecked for evidence of chafing. If chafing exists, the vehicle should beimmediately removed from service.
DEFECT #5 - SERVICE BRAKES, AIR:CONTROLS:FOOT CONTROL
Posted on: 1979-12-14
Description
Foreign material may collect under the balance beam of the treadle valve. If debris is allowed to collect and remain under the balance beam, complete actuation of the treadle valve may be impaired. This could lead to brake failure.
Consequence
Corrective Action
The treadle valve should be inspected at regular intervals for any foreign material that may have collected. Also, dealer will install a debris displacer under the treadle valve balance beam at no cost to owner.
Notes
Vehicle description: buses.system: air brakes; valve, foot control.consequences of defect: brake failure can cause loss of vehicle control and avehicle accident.note: binding of the treadle valve or slow application of brakes should providewarning to operator that defect exists.
DEFECT #6 - ELECTRICAL SYSTEM:BATTERY:CABLES
Posted on: 1980-08-21
Description
The power cables leading from the batteries of the involved vehicles are subject to a chafing condition, which, if undetected or not corrected can cause wear to the cable insulation.
Consequence
Corrective Action
To prevent chafing of the battery cables, the dealer will install four battery clamps, two each on the battery hold down bar and the fuel bolster bracket, and install pieces of rubber hose insulation onto the larger power cables. This will be done at no expense to owner.
Notes
Vehicle description: buses; transit, advanced design.system: electrical; battery cable.consequences of defect: if the chafing condition persists, it could result increation of an electrical circuit to ground situation (short) which could causeheat damage or fire to vehicle and personal injury to operator.note: owner should have cables checked immediately to avoid personal injury.
DEFECT #7 - STRUCTURE: FRAME AND MEMBERS:UNDERBODY SHIELDS
Posted on: 1980-08-21
Description
On certain vehicles, the drivers barrier glazing was not marked as safety glazing material. This does not meet the requirements of federal motor vehicle safety standard no. 205, glazing materials.
Consequence
Corrective Action
Field service representatives will install the correct decals at no charge to owners.
Notes
Vehicle description: transit buses.system: equipment; certification labels.consequencees of defect: without the certification label there would be noverification that the correct material had been properly installed to provideprotection in the event of a collision.
DEFECT #8 - STRUCTURE
Posted on: 1981-03-06
Description
Cracks may develop in the trunnion to which the apex of the a-frame is attached. These cracks may progress to the point that the trunnion could fail and the a-frame could separate from it. If this occurs, the a-frame could come into contact with the conduit carrying air, as well as the electrical and fuel lines.
Consequence
Corrective Action
Trunnion will be inspected for cracks and, if possible, cracks will be repaired as an interim measure. All trunnions will be reinforced by grumman; any deformed trunnions will be replaced with a reinforced part. Repairs will be performed at no charge.
Notes
Vehicle description: transit buses.system: suspension; rear; trunnion.consequences of defect: a fire could break out, rear brakes could fail, or bothconditions could occur. Loss of vehicle control could result in an accident andpersonal injury.note: failure of the trunnion may be indicated by shimmy in the rear of thebus. Vehicles having this condition or visible cracks in the trunnion shouldimmediately be removed from service. Buses should be inspected for cracks everytwo weeks or 1400 miles until corrected by grumman.
DEFECT #9 - ELECTRICAL SYSTEM:WIRING:FRONT UNDERHOOD
Posted on: 1980-01-11
Description
The alternating current power wire, which supplies power to the condenser fan motors, may have been grounded by chafing of the insulation against the cable clamp and clamp contact of the transmission oil filter flexline. This could cause the condenser fan motor wire to overheat.
Consequence
Corrective Action
The harness and power feed wiring will be rerouted and the cable clamps will be relocated.
Notes
Vehicle description: transit buses.system: electrical; alternating current power wire.consequences of defect: an overheated motor wire could lead to a vehicle fire,resulting in injury to passengers and property damage.
DEFECT #10 - ELECTRICAL SYSTEM:BATTERY:CABLES
Posted on: 1982-07-01
Description
The section that carries the power cables from the batteries to the engine (called the hat section) could fracture causing the main power cable to chafe.
Consequence
Corrective Action
The end support will be removed from the hat section and a component called a stiffener will be added. Also, the cables will be repositioned, without charge to owner.
Notes
Vehicle description: buses, advanced design.system: electrical; hat section power cable carrier.consequences of defect: an electrical short could occur and could lead to avehicle fire and personal injury to passengers.
DEFECT #11 - STRUCTURE:BODY:DOOR
Posted on: 1980-01-14
Description
The involved vehicles do not conform to federal motor vehicle safety standard no. 206, door locks and door retension components. The extension spring that attaches the spring bracket to the valve arm at the front door entrance engine assembly may not maintain the door in an open position when the emergency t handle is pulled. This allows the extension spring to retract and the door to close when the t handle is released.
Consequence
Corrective Action
Dealer will install a new emergency release mechanism at no cost to owner.
Notes
Vehicle description: transit buses.system: structure; extension spring.consequences of defect: passengers may be hindered in exiting through the frontdoor in an emergency situation and serious injuries could result.
DEFECT #12 - INTERIOR LIGHTING
Posted on: 1980-01-14
Description
The involved vehicles fail to comply to federal motor vehicle safety standard no. 108, lamps, reflective devices and associated equipment. The stepwell lights located at the curbside front entrance door and the rear exit door may generate excessive heat. This heat may be transmitted to the protruding shield located in the passenger entrance and exit area.
Consequence
Corrective Action
Dealer will install an additional plastic covershield over the existing shield to eliminate the problem.
Notes
Vehicle description: transit buses.system: lighting and communications; entrance and exit doors.consequences of defect: the shield could become hot enough to seriously burn apassenger upon contact.
DEFECT #13 - UNKNOWN OR OTHER
Posted on: 1980-05-02
Description
The chain drive weldment may fail under a lift load allowing the wheelchair platform to fall to the ground. Also, the top knuckle joint weldment may contain defective welds.
Consequence
Corrective Action
Manufacturer will provide the parts necessary to repair wheelchair lifts and will reimburse for labor costs.
Notes
Vehicle description: transit buses equipped with wheelchair lifts.system: equipment; wheelchair lift, chain drive.consequences of defect: if the platform falls, serious personal injury towheelchair passengers could result. The failure may occur without priorwarning.