Invacare 96-100, 1061057 manual REPLACING/REPAIRING Front Caster TIRE/TUBE, Casters

Page 42

PROCEDURE 5

CASTERS

C A S T E R S

REPLACING/REPAIRING FRONT CASTER TIRE/TUBE

WARNING

Replacement of front caster tire or tube MUST be performed by an authorized Invacare dealer or qualified technician.

CAUTION

As with any vehicle, the wheels and tires should be checked periodically for cracks and wear, and should be replaced when necessary.

90o ADJUSTMENT OF THE CASTER HEADTUBES

Whenever the seat height is raised or lowered by changing the caster size, fork stem length, rear wheel size or axle mounting plate adjustments, the caster headtube needs to be checked to maintain a 90o angle to the ground/floor. Caster headtubes that are per- pendicular to the floor will roll better, track straighter and minimize any "3-wheeling" of the wheelchair.

Inline Caster Headtubes (FIGURE 3)

1.Make sure the wheelchair is on a flat surface.

2.Loosen, but do not remove the bottom hex screw, washer and locknut that secure the caster headtube to the wheelchair frame.

3.Loosen, but do not remove the locknut and washer that secure the adjustment cam to the caster headtube.

4.Position a large right triangle or "L" square on the flat surface and against the caster headtube.

5.Move the caster headtube back and forth until the caster headtube is perpendicular to the ground/ floor.

6.While holding the caster headtube perpendicular to the ground/floor, securely tighten the adjustment cam to the caster headtube.

7.Make sure the caster headtube is still perpendicu- lar to the ground/floor by placing the large right triangle or "L" square on the flat surface and against the caster headtube.

8.Securely tighten the hex bolt, washer and locknut that secure the caster headtube to the wheelchair frame.

Offset Caster Headtubes (FIGURE 4)

1.Make sure the wheelchair is on a flat surface.

2.Loosen, but do not remove the bottom socket bolt, washer and locknut that secure the caster headtube to the wheelchair frame.

3.Remove the TOP washer and locknut that secure the adjustment cam to the caster headtube.

4.Remove the adjustment cam from the caster headtube.

5.Position a large right triangle or "L" square on the flat surface and against the caster headtube.

6.Move the caster headtube back and forth until the caster headtube is perpendicular to the ground/ floor.

7.Reinstall the adjustment cam onto the TOP socket screw that secures the adjustment cam to the caster headtube.

 

 

Caster Headtube

 

Caster/Fork

"L" Square

Adjustment Cam

 

 

 

Caster Headtube

Caster Headtube

Adjustment Cam

 

Caster/Fork

Channel

"L" Square

FIGURE 3 - INLINE CASTER HEADTUBES

FIGURE 4 - OFFSET CASTER HEADTUBES

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Contents Allegro Special Notes Special NotesTable of Contents Safety Summary Safety SummarySafety Summary Recliner Option onlySAFETY/HANDLING of Wheelchairs Stairways Transferring to and from Other SeatsNON-RECLINERS Percentage of Weight DistributionUnoccupied Occupied ReclinersSAFETY/HANDLING Functional Reach from a Wheelchair Folding and Unfolding WheelchairBending Forward Sling Seat Model Wheelchairs Folding Recliners onlySling Seat Model Wheelchairs Unfolding Folding Solid Seat Model WheelchairsFeatures FeaturesA T U R E S Specifications SpecificationsC K a G I N G PackagingHandling N D L I N GSafety Inspection Checklist Safety Inspection Check ListTroubleshooting MaintenanceI N T E N a N C E Adjusting Footrest Height Procedure Front RiggingsInstalling Footrests Figure Pivot Slide Tube Height Adjustment FigureProcedure Installing 3-INCH Extension FigureInstalling Elevating Legrests Figure Raising/Lowering Elevating LegrestsInstalling Adjustable Angle Flip-up Footplates Figure Adjusting CalfpadsINSTALLING/ADJUSTING Adjustable Angle FLIP-UP Footplates Adjustable Angle Flip-up Footplate Depth Adjustment FigureFLIP-UP Footplates Figure Optional Footrest AccessoriesReplacing Sector Block Figure Aluminum or Composite Footplates FigureProcedure Arms InstallingM S Height Figure Adjusting the T ArmsRemoving Width FigureReposition the arm tube on the T arm post Arm Sockets FigureArm Hex Screws Washers Top Middle Bottom Side Arm Guard Arms ProcedureReplacing the Locking Lever T Arms Figure Socket Screws Bottom ClampUsing Figure Installing/Height Adjustment FigureCorresponding Arm Adjustment to Back Angle Figures 10 Angled Portion Cantilever Arm AdjustmentReplacement Locking Mechanism Actuator Apply LoctiteInstalling Rigid Side Guards Figure Installing Fabric Clothing Guards FigureAdjusting Conventional Arm Height Removing Conventional ArmsReplacing Armrest Pads Figure Rear Arm Sockets FigureFront Arm Sockets Figure C K Procedure BackInstalling Adjustable Back Upholstery Figure Replacing Back UpholsteryReplacing Adjustable Back Upholstery Figure Adjustable Tension StrapsWHY USE Adjustable Back Upholstery a Clinical Discussion Back Upholstery CoverBack upholstery cover is designed for three 3 reasons Recliner Back Upholstery Figure Adjusting the Back HeightAdjustable Height Backs Figure Recliner Headrest Upholstery FigureFixed Height Backs Figure Slowly remove the two 2 backs canes from the wheelchairBack Cane Hex Bolt Washer Back Angle Plate Locknut Replacing the Locking Mechanism in the Back Cane Figure Back Plate Changing the Back AngleRepositioning the Back Changing Seat Depth Non-Recliners FigureBack Angle Plate Hex Bolt Locknut Wheelchair Frame Washer Recliners FigureInstalling and Removing a Seating System Recliner BracketsReplacing Folding Push Handle Recliners only Figure CHANGING/REPOSITIONING Seat Rails Figure A TSeat Replacing Seat Upholstery FigureChanging Seat Width Procedure SeatRepositioning the Crossbraces Figure Standard Folding Frames FigureCrossbraces For installation of newPivot Link Folding Frames Without Seat Rails FigureHex Bolt Seat Width Holes Rigid Frames FigureCrossmembers Wheelchair Frame Washer Hex Screws S T E R S CastersReplacing Front Fork Figure Inline Caster Headtubes Figure REPLACING/REPAIRING Front Caster TIRE/TUBECasters Offset Caster Headtubes FigureRepositioning the Caster Headtubes Caster Headtube Mounting Adjustments FigureHeight Adjustment Inline Caster Headtube Hardware OffsetInstalling QUICK-RELEASE Casters Figure Dust Release Detent PinCover Headtube Locknut Cap Spacer Fork Stem Hex Screw A R REMOVING/INSTALLING Rear Wheels FigureAdjusting the QUICK-RELEASE Axle Figure Rear WheelsJusting the QUAD-RELEASE Handle Installing the QUAD-RELEASE Axle FigureAdjusting the QUAD-RELEASE Handle Figure And/or OutSpoke Rear Wheels Handrim Replacement FigureRemoving the Play From the Rear Wheels Phillips Bolt HandrimComposite Rim Locknut Installing Projection HandrimsComposite Rear Wheels Figure Spoke Rear Wheels FigureJam Nuts REPAIRING/REPLACING Rear Wheel TIRE/ TubeAdjusting the Wheelbase Length Figure Shortening ForwardAxle Adjusting the Wheelbase Width FigureAdjusting Rear Wheel Height Figure Mounting PlateE E L K S E R S Adjusting the Wheel Locks FigureWheel Lock Extension Handle Installation Figure Wheel LOCKS/ANTI-TIPPERSAdjusting the Anti-Tippers Figure Procedure Wheel LOCKS/ANTI-TIPPERSINSTALLING/ADJUSTING the ANTI-TIPPERS Installing the Anti-Tippers FigureRecliner Operation Figures 1 REPLACEMENT/ADJUSTMENTRecliner Folding/Unfolding the WheelchairRecliner Installing New Recliner CablesActuator Housing Cable Locking Nut Trigger Release LeverLike this Replacing the GAS Cylinders FigureMust Look TOO LOW Steps 1, 5Squeeze the handles to extend the new gas cylinders Adjusting the GAS Cylinders FigureTrigger Release Lever Cable Locking Nut Adjusting Detail B Must Look TOO LOWMinus SEAT-TO-FLOORSEAT-TO-FLOOR Height Determination EqualsProcedure SEAT-TO-FLOOR Changing SEAT-TO-FLOOR HeightStandard MULTI-POSITION Axle Plate A T Inline Caster Headtube Front SEAT-TO-FLOOR Heights LowerFrame Offset Caster Headtube Front SEAT-TO-FLOOR Heights Changing Seat Depth A T P T HSeat Depth Determination Figure Seat DepthSeat Depth Checklist Seat DepthRight A T P TLeft Rear Mounting HoleApproximate 2-inch gap A T P T Inch Right A T P T H Page Limited Warranty Limited WarrantyR R a N T Y One Invacare Way Technical Support
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