Invacare At'm manual Adjusting Forks

Page 41

SECTION 10—WHEELS AND CASTERS

ADJUSTING FORKS

NOTE: For this procedure, refer to FIGURE 10.2.

1.Remove the dust covers from the caster headtubes.

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

A.Remove battery pack from wheelchair. Refer to Removing/Installing the Battery Pack on page 35.

B.Tip back the wheelchair to floor.

C.Pivot both forks and casters to top of their arc simultaneously.

D.Let casters drop to bottom of arc (wheels should swing once to one-side, then immediately rest in a straight downward position).

E.Adjust locknuts according to freedom of caster swing.

F.Bring wheelchair back to driving position.

G.Install the battery pack. Refer to Removing/Installing the Battery Pack on page 35.

3.Test wheelchair for maneuverability.

4.Readjust locknuts if necessary, and repeat STEPS 1-3 until correct.

5.Snap dust covers into the caster headtubes.

Dust Cover

Locknut

Washer

Caster Headtube

Fork Stem

Fork

Front Caster

FIGURE 10.2 - ADJUSTING FORKS

Part No. 1125035

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At’m

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Contents At’m At’m Table of Contents Seat Table of Contents Complete and mail the form on the next Register Your ProductProduct Registration Form Fold here Cut Along Line Wheelchair TIE-DOWN Restraints and Seat Restraints Special NotesLabel Location Parameters Typical Product ParametersGeneral Guidelines Controller SETTINGS/REPAIR or ServiceTire Pressure Operation InformationGeneral Guidelines Charging Batteries AccessoriesBatteries Weight Limitation Weight TrainingGrounding Instructions Rain TestEMI Information EMI Information Coping with Everyday Obstacles SAFETY/HANDLING of WheelchairsStability and Balance LIFTING/STAIRWAYS Reaching and Bending Backward Percentage of Weight DistributionREACHING, Leaning and Bending Forward INSPECT/ADJUST Initially Safety INSPECTION/ TroubleshootingSafety Inspection Checklists INSPECT/ADJUST Periodically INSPECT/ADJUST WeeklyINSPECT/ADJUST Monthly Symptom Probable Cause Solutions Troubleshooting GuideUsing the Joystick to Drive the Chair Turning the Power ON/OFFWheelchair Operation Operating the WheelchairMovement Action Using the HornON/OFF Button Joystick Switches and IndicatorsSpeed Control Knob JoystickWheelchair Operation Display Description Definition Comments Multi Function Charger Port Resetting the Circuit BreakerInstalling REMOVING/INSTALLING the SeatSeat RemovingREMOVING/INSTALLING the Seat Replacing Seat Positioning Strap Replacing Seat Positioning StrapDisconnecting DISCONNECTING/CONNECTING the JoystickConnecting JoystickRepositioning the Joystick Repositioning the JoystickBatteries Recommended Battery TypeREMOVING/INSTALLING the Battery Pack REMOVING/INSTALLING the Battery PackRemoving Charging Batteries REMOVING/INSTALLING the Batteries FROM/INTO Battery Pack Multi-Function Charger Port ENGAGING/DISENGAGING the Motors MotorsReplacing Front Casters Wheels and CastersAdjusting Forks Adjusting ForksREMOVING/INSTALLING the Drive Wheels REMOVING/INSTALLING the Drive WheelsTransporting the Wheelchair USA Limited Warranty