Invacare MyOn HC Service Manual
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Invacare MyOn HC Service Manual

Invacare MyOn HC Service Manual

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Invacare
MyOn™ HC
®
S E R V I C E M A N U A L
( M A I N T E N A N C E A N D A D J U S T M E N T )
The procedures in this manual MUST be performed by a qualified technician.
M yO n H C
J u l y 2 0 1 5

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  • Page 1 Invacare MyOn™ HC ® S E R V I C E M A N U A L ( M A I N T E N A N C E A N D A D J U S T M E N T ) The procedures in this manual MUST be performed by a qualified technician.

  • Page 2: Table Of Contents

    TABLE OF CONTENTS T A B L E O F C O N T E N T S SECTION 1—TROUBLESHOOTING A N D M A I N T E N A N C E ........4 Troubleshooting .........................4 Maintenance Guidelines & Safety Inspection ..............4 Tightened Torques ......................7 Suggested Maintenance Procedures ................7 Stability Warning ........................8...
  • Page 3 TABLE OF CONTENTS SECTION 5—REAR WHEELS/FRONT CASTERS ..............25 Removing/Installing Rear Wheels ..................25 Fixed Axles .......................... 25 Quick-Release Axles ......................26 Adjusting Quick-Release Axles .................... 27 Replacing Handrims ......................27 Adjusting the Wheelbase Length ..................28 Adjusting Rear Wheel Height ....................29 Replacing/Repairing Rear Wheel Tire/Tube ................

  • Page 4: Section 1-Troubleshooting A N D M A I N T E N A N C E

    SECTION 1—MAINTENANCE GUIDELINES S E C T I O N 1 — T R O U B L E S H O O T I N G A N D M A I N T E N A N C E G U I D E L I N E S NOTE: Once a year, take your wheelchair to a qualified dealer for a thorough inspection and servicing.
  • Page 5 SECTION 1— MAINTENANCE GUIDELINES Inspect adjustable angle back attaching hardware is securely tightened. Adjustment/replacement → authorized dealer. Ensure hand grips are secure to backrest canes. Sealed bearings and axle nut tension are correct. No excessive side movement or binding when rear wheels are lifted and spun. Inspect/Adjust initially (User or Attendant) Quick-release axles lock properly (see page 29).
  • Page 6 SECTION 1—MAINTENANCE GUIDELINES Inspect/Adjust Monthly (User or Attendant) Inspect seat positioning strap for any signs of wear. Ensure buckle latches. Verify hardware that attaches strap to frame is secure and undamaged. Adjustment/replacement → authorized dealer. Loosen/tighten locknut if wheel wobbles noticeably or binds to a stop. Adjustment/replacement → authorized dealer.

  • Page 7: Tightened Torques

    SECTION 1— MAINTENANCE GUIDELINES C A U T I O N It is compulsary to use original Invacare spare parts which you can obtain from any Invacare authorized dealer. A list of spare parts is available at www.invacare.eu.com W A R N I N G After ANY adjustments, repair or service and before use, make sure all attaching hardware is tightened securely - otherwise injury or damage may occur.

  • Page 8: Stability Warning

    SECTION 1— MAINTENANCE GUIDELINES & STABILITY WARNING 5. The wheels, castors and tires should be checked periodically for cracks and wear, and should be replaced when necessary. 6. Regularly check for loose spokes in the rear wheels. If loose, have them adjusted. 7.

  • Page 9: Section 2-Front Hangers

    SECTION 2—FRONT HANGERS S E C T I O N 2 — F R O N T H A N G E R S W A R N I N G After ANY adjustments, repair or service and before use, make sure all attaching hardware is tightened securely - otherwise injury or damage may occur.

  • Page 10: Replacing Heel Strap

    SECTION 2—FRONT HANGERS Replacing Heel Strap NOTE: For this procedure, refer to FIGURE 2.2. 1. Remove the locking screw (M6) that secure the footrest tube to the footrest support. 2. Remove the lower footrest assembly. 3. Remove the mounting screw, strap pin that secure the heel strap to the footplate.

  • Page 11: Installing Angle Adjustable Footplate

    SECTION 2—FRONT HANGERS Installing Angle Adjustable Footplate NOTE: For this procedure, refer to FIGURE 2.4. NOTE: This procedure is for individual Angle Adjustable Footrests only. 1. Position the angle adjustable footplate on the footrest support tube at the desired height. 2.

  • Page 12: Adjusting Calf Pad Height

    SECTION 2—FRONT HANGERS 2. Reposition footplate to desired height, securely tighten locking screw (M6). 3. If necessary, repeat STEPS 1 2 to adjust remaining footplate height. Adjusting Calf pad Height 1. Loosen the locking button that secure the calf pad bracket to the elevating leg rest assembly.

  • Page 13: Section 3-Armrests

    SECTION 3—ARMRESTS S E C T I O N 3 — A R M R E S T S W A R N I N G After ANY adjustments, repair or service and BEFORE use, make sure all attaching hardware is tightened securely - otherwise injury or damage may occur. Removing/Installing and Adjusting Removable Armrests (n°1) NOTE: For this procedure, refer to FIGURE 3.1.

  • Page 14: Removing/Installing Swing Away Armrest (N°3)

    SECTION 3—ARMRESTS Removing/Installing Swing Away Armrests (n°3) Removing/Installing Swing Aw ay Armrest (n°3) NOTE: For this procedure, refer to FIGURE 3.2. Removing Swing Away Armrest Unlock existing armrest assembly by operate the push bracket 2. Swing back on the existing armrest to remove from the front arm socket. 3.

  • Page 15: Replacing Armrest Arm Pad

    SECTION 3—ARMRESTS Replacing Armrest Arm pad NOTE: For this procedure, refer to FIGURE 3.3. 1. Remove the mounting screws (M5) that secure the arm pad to the armrest assembly. 2. Replace arm pad and securely tighten with the existing mounting screws (M5). 3.

  • Page 16: Section 4-Seat/Back

    SECTION 4—SEAT/BACK S E C T I O N 4 — S E A T / B A C K W A R N I N G The seat height, seat depth, back angle, seating system, size/position of the rear wheels, size/position of the front castors, seating options (e.g.

  • Page 17: Removing/Installing Standard Back Upholstery

    SECTION 4—SEAT/BACK 1. Fold the wheelchair. 2. Remove the mounting screws (Torx T25) that secures the seat upholstery to the front and back seat rails. 3. Remove the end caps from the front or the rear of the seat rails (in this case, preliminary dismount the back cane bracket, refer to figure 4.7).

  • Page 18: Contour (Adjustable) Back Upholstery

    SECTION 4—SEAT/BACK Contour (adjustable) Back Upholstery Contour (adjustable) Tension Strips The adjuster strips can be adjusted at various levels of tension to accommodate individual end users. In a typical scenario, the bottom two strips can be adjusted tightly to support and/or assist the extensor muscles. Installing/Replacing Adjustable Back Upholstery NOTE: For this procedure, refer to FIGURE 4.4 on page 19.

  • Page 19: Installing/Replacing Contour (Adjustable) Back Upholstery

    SECTION 4—SEAT/BACK Replacing 1. Lift up on the existing back upholstery cover and remove the cover from the wheelchair. 2. Remove the two mounting screws that secure the existing adjustable back upholstery to the back canes. 3. Slide each section (anchor loop/adjuster strap) of the existing adjustable back upholstery off of the back canes.

  • Page 20: Adjusting The Height Adjustable Back

    SECTION 4—SEAT/BACK Adjusting the Height Adjustable Back NOTE: For this procedure, refer to FIGURE 4.5. 1. Loosen, but DO NOT remove, the height adjustment knobs. 2. Reposition the back canes to the desired height. NOTE: Both back canes should be adjusted to the same height. NOTE: DO NOT raise push handles to maximum height when tilting the chair.

  • Page 21: Removing/Installing Different Type Of Backrests

    SECTION 8—SEAT/BACK DETAIL « A » Back cane Back cane bracket Backrest adjustable Folding & Adjustable bracket-Adjustable -15°/+15° Adjustable screw DETAIL « B » Allen key Step less adjustment 5 mm -15°/+15° FIGURE 4.6 Adjusting the Backrest Angle Removing/Installing different type of Backrests NOTE: For this procedure, refer to FIGURE 4.1 on page 16.

  • Page 22: Removing/Installing/Adjusting The Back Cane Bracket

    SECTION 4—SEAT/BACK Removing/Installing/Adjusting the Back Cane Bracket NOTE: For this procedure, refer to FIGURE 4.7. NOTE: To install the back cane bracket, reverse this procedure. NOTE: To install or to adjust the back cane bracket, use 8 new mounting pre-glued screws (M5).

  • Page 23: Installing/Removing Seat Posture Belt

    SECTION 4—SEAT/BACK Installing/Removing Seat Posture Belt NOTE: For this procedure, refer to FIGURE 4.8. 1. Remove seat cushion from wheelchair, if necessary. 2. Remove the mounting screw and locknut (M5) that secures the seat posture belt half to the back cane bracket. 3.

  • Page 24: Installing/Removing The Back Brace

    SECTION 4—SEAT/BACK Installing/Removing the Folding Back Brace W A R N I N G After ANY adjustments, repair or service and before use, make sure all attaching hardware is tightened securely - otherwise injury or damage may occur. NOTE: For this procedure, refer to FIGURE 4.9. NOTE: To remove the folding back brace, reverse this procedure.

  • Page 25: Section 5-Rear Wheels/Front Casters

    SECTION 5—REAR WHEELS/FRONT CASTERS SECTION 5—REAR WHEELS/FRONT CASTERS W A R N I N G The seat height, seat depth, back angle, seating system, size/position of the rear wheels, size/position of the front casters, seating options (e.g. back bag, …) as well as the user condition directly relate to the stability of the wheelchair.

  • Page 26: Quick-Release Axles

    The locking pins MUST be protruding past the inside of rear wheel hub for a positive lock. Keep locking pins clean. Invacare recommends inserting quick-release axles with the head end to the inside of the wheelchair to prevent accidental release during contact leisure activities. Installing Wheelchair frame 1.

  • Page 27: Adjusting Quick-Release Axles

    SECTION 5—REAR WHEELS/FRONT CASTERS Adjusting Quick-Release Axles NOTE: For this procedure, refer to FIGURE 5.3. 1. Remove rear wheel and quick release axle from the wheelchair. Refer to Removing/Installing Rear Wheels paragraph. 2. Depress detent pin in the quick release axle and slide the quick release axle through the rear wheel hub.

  • Page 28: Adjusting The Wheelbase Length

    SECTION 5—REAR WHEELS/FRONT CASTERS 6. Reinstall the rear wheel to the wheelchair. Refer to Removing/Installing Rear Wheels paragraph. 7. Repeat STEPS 1 6 for opposite wheel, if necessary. Adjusting the Wheelbase Length NOTE: For this procedure, refer to FIGURES 5.5 & 5.6. 1.

  • Page 29: Adjusting Rear Wheel Height

    SECTION 5—REAR WHEELS/FRONT CASTERS Vertical axis of Vertical axis of the backrest the axle plate « C » Active « A » Standard position (+75 mm) position (+25 mm) « D » Very Active « B » Medium Active position (+100 mm) position (+50 mm) FIGURE 5.6 4 Possible Positions of Wheel Plate Adjusting Rear Wheel Height...

  • Page 30: Replacing/Repairing Rear Wheel Tire/Tube

    SECTION 5—REAR WHEELS/FRONT CASTERS Replacing/Repairing Rear Wheel Tire/Tube W A R N I N G Replacement of rear wheel tire or tube MUST be performed by a qualified technician. Replacing/Repairing Front Caster Tire/Tube W A R N I N G Replacement of front caster tire or tube MUST be performed by a qualified technician.

  • Page 31: Adjusting Forks

    SECTION 5—REAR WHEELS/FRONT CASTERS Adjusting Forks W A R N I N G Caster angle vertical axis MUST be at 90° +/- 1° from the ground, if not a flattering risk may occur. Both caster assemblies should be at the same angle. After ANY adjustments, before use, make sure all attaching hardware is tightened securely - otherwise injury or damage may occur.

  • Page 32: Removing/Installing/Repositioning The Caster Assemblies

    SECTION 5—REAR WHEELS/FRONT CASTERS Removing/Installing/Repositioning the Caster Assemblies NOTE: If replacing a front caster note the mounting position of the existing front caster for installation of the new front caster. NOTE: If repositioning front casters or replacing the existing front caster with a caster of a different size, refer to Changing Front Seat Floor Height paragraph to determine the front caster position needed for the required front seat-to...

  • Page 33: Adjusting Caster Assembly Position

    SECTION 5—REAR WHEELS/FRONT CASTERS Adjusting Fork Assembly Height NOTE: For this procedure, refer to FIGURE 5. 8 and 5.11. 1. Remove the dust cover from the Caster head tube. 2. Unscrew the Lock nut (M12) that secure the Vertical axis assembly to the Caster head tube.

  • Page 34: Section 6-Seat-To-Floor Height

    NOTE: For this procedure, refer to FIGURE 6.1. NOTE: Refer to Measuring Seat Floor Height paragraph for measuring instructions. NOTE: Invacare recommends that the rear seat floor height be AT LEAST 25 mm shorter than the front seat floor height. Otherwise a front slipping can occur.

  • Page 35: Measuring Seat-To-Floor Height

    SECTION 6—SEAT-TO-FLOOR HEIGHT Measuring Seat-to-Floor Height NOTE: For this procedure, refer to FIGURE 6.2. NOTE: All measurements are in millimetres. The front and rear seat floor heights may varies depending to tire wear and air pressure. Measuring Front Seat-to-Floor Height Front Seat Floor Height: Measure the distance between the front of the seat upholstery and the ground/floor.
  • Page 36 SECTION 6—SEAT-TO-FLOOR HEIGHT NOTE: In order to obtain the desired front seat to floor height, it will be necessary to perform one or both of the following: • Changing the caster size and/or mounting position on the fork, and/or seat angle Refer to Removing/Installing/Repositioning the Caster Assemblies paragraph.

  • Page 37: Section 7-Wheel Locks

    SECTION 7—WHEEL LOCKS S E C T I O N 7 — W H E E L L O C K S W A R N I N G After ANY adjustments, repair or service and BEFORE use, make sure all attaching hardware is tightened securely - otherwise injury or damage may occur.

  • Page 38: Replacing Wheel Lock Handle

    SECTION 7—WHEEL LOCKS Ad j usting Whe e l Lock T ension NOTE: For this procedure, refer to FIGURE 7.2. 1. Loosen, but DO NOT remove locking screws (M4 that secure the wheel lock support to the wheel lock bracket. 2.

  • Page 39: Installing/Adjusting Hub Brakes

    SECTION 7—WHEEL BRAKES W A R N I N G After ANY adjustments, repair or service and BEFORE use, make sure all attaching hardware is tightened securely - otherwise injury or damage may occur. Always operate the two brakes simultaneously and do not take slopes exceeding 5°...
  • Page 40 SECTION 7—WHEEL BRAKES Installing/Adjusting Hub Brake 7. Repeat STEPS 1 to 6 for the other rear wheel. Installing/adjusting Hub Brake NOTE: For this procedure, refer to FIGURE 7.5. 1. Install the hub brake lever with the cable on the backrest canes. 2.

  • Page 41: Section 8 - O P T I O N S

    SECTION 8—OPTIONS S E C T I O N 8 — O P T I O N S W A R N I N G After ANY adjustments, repair or service and BEFORE use, make sure all attaching hardware is tightened securely - otherwise injury or damage may occur. Make sure the detent pin and locking pins of the quick-release button are fully released before operating the wheelchair.

  • Page 42: Section 9 - A N T I - T I P P E R S

    Anti-tippers MUST be attached at all times. Inasmuch as the anti-tippers are an option on this wheelchair (you may order it with or without the anti-tippers), Invacare strongly recommends ordering the anti-tippers as an additional safeguard for the wheelchair user.

  • Page 43: Installing/Adjusting Tipper Aid

    SECTION 8—OPTIONS W A R N I N G When anti-tippers are used, anti-tippers MUST be adjusted to maintain a 30 to 50 mm clearance between the bottom of the anti-tipper wheels and the ground/ floor. This spacing should always be checked whenever adjustments/changes are made to the wheelchair.
  • Page 44 Invacare France Operations 1601714 Route de St Roch Rev. A 07-2015 37230 Fondettes FRANCE...

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