Invacare 1073955 manual Replacing Front Fork

Page 59

SECTION 8—FRONT CASTERS

Replacing Front Fork

NOTE: For this procedure, refer to FIGURE 8.2.

1.Remove the front caster assemblies from the wheelchair. Refer to Replacing/Installing Front Caster Assemblies on page 58.

2.Remove the dust cover.

3.Remove the locknut and nylon washer.

4.Drop the existing fork out of the caster head tube.

5.Slide the new fork into the caster head tube.

NOTE: Check bearing assemblies and replace if necessary.

6. Ensure that fork slides completely into the caster head tube.

WARNING

Improper positioning of the washer will prohibit the free movement of the forks and may result in injury to the user.

7.Install nylon washer and secure with locknut.

8.Reinstall the front caster assemblies onto the wheelchair. Refer to Replacing/Installing Front Caster Assemblies on page 58.

9.To properly tighten caster journal system and guard against flutter, perform the following check:

A. Tip front of wheelchair off floor.

B. Pivot forks and casters to top of

their arc simultaneously.

C. Let casters drop to bottom of arc

(wheels should swing once to

one‐side, then immediately rest in a

straight downward position).

D. Adjust locknuts according to

Locknut

Nylon

Washer

Dust Cover

Caster

Headtube

freedom of caster swing.

E. Test wheelchair for

maneuverability.

10. Reinstall dust cover.

Caster Fork

Assembly

Washer

NOTE: Five‐inch front caster shown only for clarity.

FIGURE 8.2 Replacing Front Fork

Part No. 1073955

59

Orbit ™

Image 59

Contents Orbit Orbit Table of Contents Front Riggings Options Complete and mail the form on the next Register Your ProductCity State/Province Product Registration FormFold here Cut Along Line Wheelchair TIE-DOWN Restraints and Seat Restraints Special NotesStandard Labels Label LocationWheelchairs with Trro Minimum Maximum Typical Product ParametersStability All Models General GuidelinesInformation for Healthcare Professionals/Assistants Operating Information Anti-TippersTire Pressure Weight TrainingWeight Limitation Stability and Balance SAFETY/HANDLING of WheelchairsSafety/Handling of Wheelchairs Coping With Everyday Obstacles Do not tip the wheelchair without assistance Reaching, Leaning and Bending ForwardReaching and Leaning Backwards TippingMethod 2 Wheelchair Without Step Tubes Method 1 Wheelchair With Step TubesStairways StairwaysTransferring To and From Other Seats EscalatorsInspect/Adjust Initially Safety INSPECTION/TROUBLESHOOTINGSafety Inspection Checklist Inspect/Adjust Monthly Inspect/Adjust WeeklyInspect/Adjust Periodically Suggested Maintenance Procedures TroubleshootingMaintenance Maintenance Safety PrecautionsSafety INSPECTION/TROUBLESHOOTING Assembling the Seat Frame to the Base Frame AssemblyAssembling/Disassembling the Removable Orbit Wheelchair Disassembling the Seat Frame from the Base Frame Assembling/Disassembling the Removable Orbit Wheelchair Removing Front Riggings Installing/Removing Front RiggingsInstalling Front Riggings Front RiggingsAdjusting Footplate Height 70 MFX and 90 Footrests Only Adjusting Footplate HeightAdjusting Pivot Slide Tube Height Adjusting Footplate Height MFX and 90 Footrests Only Installing 3-Inch ExtensionAdjusting Elevating Legrest Installing Elevating LegrestAdjusting Angle on Adjustable Angle Flip-up Footplate Installing Adjustable Angle Flip-up FootplateAdjusting Depth on Adjustable Angle Flip-Up Installing Bilateral Contracture Platform Bilateral Contracture Platform ProceduresRemoving Bilateral Contracture Platform Adjusting Height of Bilateral Contracture PlatformReplacing Sector Block Adjusting Bilateral Contracture Platform AngleAdjusting Bilateral Contracture Platform Footplate Depth Adjusting Telescoping Front Frame Tubes Installing/Removing Telescoping Front Frame TubesComposite Footplates Optional Footrest AccessoriesReplacing Heel Loop 15 Replacing Heel Loop Adjustable Footplate Adjustable FootplateArms Installing the T-Arm SocketsRemoving T-Arms Installing/Removing the T-armsInstalling T-Arms Adjusting T-Arm Width Adjusting the T-ArmsAdjusting T-Arm Height Adjusting the T-Arms- Adjusting T-Arm Width Adjusting T-Arm DepthAdjusting the T-Arms- Adjusting T-Arm Depth Adjusting T-Arm SocketsAdjusting the T-Arms- Adjusting T-Arm Sockets Adjusting the Transfer Assists and/or Side GuardsReplacing the T-Arm Locking Lever Adjusting the Transfer Assists and/or Side GuardsUsing Catilever Arms Using/Installing/Adjusting Cantilever ArmsUsing/Installing/Adjusting Cantilever Arms Installing/Removing/Adjusting Catilever ArmsAngled Portion Locking Mechanism Replacement Replacing and Adjusting Arm Pad Depth for Cantilever ArmsAdjustment Replacing the Locking Mechanism in the Back Cane Seat and BackInstalling Adjustable Angle Stroller Handles Installing Fixed Height Stroller HandlesAdjusting Adjustable Angle Stroller Handles Removing Adjustable Angle Stroller HandlesAdjusting Adjustable Angle Stroller Handles Removing/Installing the Spreader Bar Folding/Unfolding the Back Canes Removing/Installing the Spreader BarRemoving InstallingFront Casters Replacing/Installing Front Caster AssembliesReplacing Front Fork Replacing Front ForkAdjusting Caster Headtubes Adjusting Caster HeadtubesPermanent Axles Removing/Installing Rear WheelsRear Wheels Quick-Release AxlesRemoving/Installing Rear Wheels Adjusting the Quick-Release AxleProjection Handrims Installing Non-Projection HandrimsReplacing Handrims Non-Projection HandrimsRemoving Projection Handrims Installing Projection HandrimsANTI-TIPPERS/WHEEL Locks Foot Activated Wheel Lock ProceduresInstalling/Removing Foot Activated Wheel Locks Using Foot Activated Wheel LocksInstalling/Removing Hand Activated Wheel Locks Hand Activated Wheel Lock ProceduresEngaging/Disengaging Hand Activated Wheel Locks Adjusting the Wheel LockAdjusting the Wheel Lock Installing Anti-TippersAdjusting Anti-Tippers Adjusting Anti-TippersEngaging Tilt-In-Space ReclinerRecliner Engaging Tilt-In-Space Operating ReclinerAdjusting Anterior Forward Limit Stops Adjusting Limit Stops of the Tilt MechanismReplacing the Headrest Upholstery Adjusting Posterior Rearward Limit StopsReplacing Upholstery Recliner Models Only Replacing the Back UpholsteryReplacing Upholstery Recliner Models Only Adjusting the Back Height Recliner Models OnlyTransport Ready Option Compliance Information SpecificationsWeight Limit About Transport Ready PackagesPositioning the Wheelchair in the Vehicle Securing the Wheelchair to the VehicleSecuring the Wheelchair Securement PointsSeating System Securing the OccupantVehicle-Anchored Belts Positioning Belts Positioning BeltsOptions Using the Ventilator TrayLimited Warranty USA