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Owner's Operator and Maintenance Manual
A4 Owner's Manual
DEALER: This manual MUST be given to
the user of the wheelchair.
USER: BEFORE using this wheelchair, read
this manual and save for future reference.
For more information regarding
Invacare products, parts, and services,
please visit www.invacare.com

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Table of Contents
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Summary of Contents for Invacare A4

  • Page 1 A4 Owner’s Manual DEALER: This manual MUST be given to the user of the wheelchair. USER: BEFORE using this wheelchair, read this manual and save for future reference. For more information regarding Invacare products, parts, and services, please visit www.invacare.com...
  • Page 2 ACCESSORIES WARNING Invacare products are specifically designed and manufactured for use in conjunction with Invacare accessories. Accessories designed by other manufacturers have not been tested by Invacare and are not recommended for use with Invacare products. NOTE: Updated versions of this manual are available on www.invacare.com. A4 Owner’s Manual...
  • Page 3: Table Of Contents

    Removing/Installing Standard Back Upholstery ......................21 Removing Standard Back Upholstery ..........................21 Installing Standard Back Upholstery..........................21 Adjustable Tension Back Upholstery..........................21 Removing/Installing Adjustable Tension Back Upholstery ..................22 Seat Upholstery Replacement ............................22 Unfolding/Folding the Back ............................... 23 Part No 1110545 A4 Owner’s Manual...
  • Page 4 Adjusting Front Seat-To-Floor Height ........................... 42 Determining Frame Size ..............................43 Front Seat-to-floor Height Adjustment ......................... 43 SECTION 7—FOOTREST ................... 49 Replacing the Footrest ............................... 49 Footplate Angle Adjustment............................. 49 Footplate Depth Adjustment............................49 A4 Owner’s Manual Part No 1110545...
  • Page 5 Installing The Half Arm Socket ............................55 Adjusting Half Arm Height..............................56 SECTION 10—SUSPENSION ................57 Elastomers And Suspension .............................. 57 Replacing Rear Elastomers ..............................57 Replacing Front Elastomers .............................. 57 LIMITED WARRANTY ..................59 Part No 1110545 A4 Owner’s Manual...
  • Page 6: Special Notes

    WARNING WHEELCHAIR USER As a manufacturer of wheelchairs, Invacare endeavors to supply a wide variety of wheelchairs to meet many needs of the end user. However, final selection of the type of wheelchair to be used by an individual rests solely with the user and his/her healthcare professional capable of making such a selection.
  • Page 7: Label Locations

    THE ANTI-TIP TUBES setting. 1085379 INSTALLED. REV. 5/98 P/N 60106X144 Detent balls should extend beyond the diameter of the WARNING axle bushing for a positive lock. Keep detent balls clean. P/N 1026960 Rev D Part No 1110545 A4 Owner’s Manual...
  • Page 8: Typical Product Parameters

    22 pounds - 16 x 16 frame, with anti-tippers, 24-inch spoke wheels, and dual camber inserts SHIPPING WEIGHT** ( ) 34 pounds - 15 x 15 seat frame with complete package APPROX *NOTE: The seat‐to‐floor heights are based on pneumatic tires and pneumatic tires with flat‐free inserts. If the wheelchair is equipped with urethane tires,  ” subtract  from the measurements listed above. All heights are measured with properly inflated new tires. These heights can vary ± ‐inch due to tire wear.  Add one (1) inch for wheelchairs with the suspension option. **NOTE: Subtract one (1) pound for Titanium models. Subtract one‐half ( ) pound for single camber inserts. Add one (1) pound for wheelchairs with the  suspension option. A4 Owner’s Manual Part No 1110545...
  • Page 9: Section 1-General Guidelines

    ✓ ✓ N/A N/A N/A ✓ ✓ ✓ ✓ ✓ ANTI-TIPPERS N/A N/A N/A N/A ● ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ USER CONDITION ✓ NOTE: When changes to the left hand column occur, follow across the chart and refer to the   procedure to maintain the proper stability,  safety and handling of the wheelchair. NOTE: Additional adjustments may be needed according to the wheelchair type. Refer to the wheelchair owner’s manual for these  procedures. Part No 1110545 A4 Owner’s Manual...
  • Page 10: Operating Information

    DO NOT lean over the top of the back upholstery to reach objects from behind as this may cause the  wheelchair to tip over. DO NOT shift your weight or sitting position toward the direction you are reaching as the wheelchair  may tip over. DO NOT tip the wheelchair without assistance. DO NOT attempt to stop a moving wheelchair with wheel locks. Wheel locks are not brakes. NEVER leave an unoccupied wheelchair on an incline. DO NOT use an escalator to move a wheelchair between floors. Serious bodily injury may occur. Before  attempting to transfer in or out of the wheelchair, every precaution should be taken to reduce the gap  distance. Turn both casters parallel to the object you are transferring onto. Also be certain the wheel  locks are engaged to prevent the wheels from moving. DO NOT operate on roads, streets or highways. DO NOT climb, go up or down ramps or traverse slopes greater than 9°. DO NOT attempt to move up or down an incline with a water, ice or oil film. DO NOT attempt to ride over curbs or obstacles. Doing so may cause your wheelchair to turn over and  cause bodily harm or damage to the wheelchair. DO NOT attempt to lift the wheelchair by any removable (detachable) parts. Lifting by means of any  removable (detachable) parts of a wheelchair may result in injury to the user or damage to the  wheelchair. DO NOT stand on the frame of the wheelchair. Check all Allen screws that secure the footrest/raised footrest system to the wheelchair frame before  using the wheelchair, especially if engaging in any contact sport. Anti‐tippers MUST be used at all times. When outdoors on wet, soft ground or on gravel surfaces,  anti‐tippers may not provide the same level of protection against tip over. Extra caution MUST be  observed when traversing such surfaces. Inasmuch as the anti‐tippers are an option on this wheelchair  (you may order with or without the anti‐tippers), Invacare strongly recommends ordering the  anti‐tippers as an additional safeguard for the wheelchair user. Unless otherwise noted, all service and adjustments should be performed while the wheelchair is  unoccupied. ALWAYS use the handrims for self‐propulsion. Inasmuch as the handrims are an option on this  wheelchair (you may order with or without the handrims), Invacare strongly recommends ordering the  handrims as an additional safeguard for the wheelchair user.  DO NOT use the footplate as a platform when getting in or out of the wheelchair. A4 Owner’s Manual Part No 1110545...
  • Page 11: Tire Pressure And Information

    SECTION 1—GENERAL GUIDELINES Tire Pressure and Information DO NOT use your wheelchair unless it has the proper tire pressure (p.s.i.). DO NOT overinflate the  tires. Failure to follow these suggestions may cause the tire to explode and cause bodily harm. The  recommended tire pressure is on the sidewall of the tire. Replacement of the tire or tube MUST be performed by a qualified technician. Weight Training Invacare DOES NOT recommend the use of its wheelchairs as a weight training apparatus. Invacare  wheelchairs have not been designed or tested as a seat for any kind of weight training. If occupant uses  said wheelchair as a weight training apparatus, Invacare shall not be liable for bodily injury and the  warranty is void. Weight Limitation The Invacare A4 wheelchair has a weight limitation of 300 lbs. (136 kg). Part No 1110545 A4 Owner’s Manual...
  • Page 12: Section 2-Safe Handling

    ALWAYS wear your seat positioning strap. Inasmuch as the seat positioning strap is an option on this wheelchair (you may order with or without the seat positioning strap), Invacare Top End strongly recommends ordering the seat positioning strap as an additional safeguard for the wheelchair user.
  • Page 13: Coping With Everyday Obstacles

    DO NOT attempt to lift a wheelchair by lifting on any removable (detachable) parts. Lifting by means of any removable (detachable) parts of a wheelchair may result in injury to the user or damage to the wheelchair. Also, be aware of any removable (detachable) parts. These MUST NEVER be used to move the wheelchair or as lifting  supports, as they may be inadvertently released, resulting in possible injury to the user and/or assistant(s). When learning a new assistance technique, have an experienced assistant help you before attempting it alone. Part No 1110545 A4 Owner’s Manual...
  • Page 14: Reaching, Leaning And Bending - Forward

    WARNING DO NOT tip the wheelchair without assistance. DO NOT let the wheelchair drop the last few inches to the ground. This could result in injury to the occupant. When tipping the wheelchair, an assistant should grasp the back of the wheelchair on a non‐removable (non‐detachable)  part. Inform the wheelchair occupant before tilting the wheelchair and remind him/her to lean back. Be sure the occupant’s  feet and hands are clear of all wheels and/or pinch points. Apply a continuous motion until the balance point is achieved.  At this point, the assistant will feel a difference in the weight distribution. Turn the wheelchair in the desired direction if  necessary. Slowly lower the wheelchair in one continuous movement.  A4 Owner’s Manual Part No 1110545...
  • Page 15: Tipping - Curbs

    Tipping - Curbs WARNING Invacare does not recommend that sport wheelchairs be used where traversing curbs present an obstacle. Possible injury to occupant and/or assistant(s) can occur. Transfer to an everyday use wheelchair is recommended if any such obstacles may be encountered.
  • Page 16: Transferring To And From Other Seats

    When transferring, position yourself as far back as possible in the seat. This will prevent dam- aged upholstery and the possibility of the wheelchair tipping forward. NOTE: For this procedure, refer to FIGURE 2.5. NOTE: This activity may be performed independently provided you have adequate mobility and upper body strength. Position the wheelchair as close as possible along side the seat to which you are transferring, with the front casters parallel  to it. Remove the armrest, if installed. Engage wheel locks. Shift body weight into seat with transfer. During independent transfer, little or no seat platform will be beneath you. Use a transfer board if at all possible. FIGURE 2.5 Transferring To and From Other Seats A4 Owner’s Manual Part No 1110545...
  • Page 17: Section 3-Safety Inspection

    ❑ Inspect upholstery fastening flaps to ensure they securely latch. ❑ Inspect seat positioning strap for any signs of wear. Ensure buckle latches. Verify hardware that attaches strap to frame is  secure and undamaged. Replace if necessary. ❑ Ensure hand grips (if equipped) are not loose. ❑ Ensure quick release axles and camber inserts are clean. ❑ Ensure camber bar mounting clamps are securely tightened. ❑ Ensure quick/quad release axles lock properly. ❑ Ensure no excessive side movement or binding when lifted and spun.  ❑ Inspect handrims for signs of rough edges or peeling. ❑ Inspect spokes for bent or broken spokes. ❑ Ensure all spokes are uniformly tight. ❑ Clean upholstery and armrests. ❑ Inspect wheel/fork assembly for proper tension by spinning caster; caster should come to a gradual stop. ❑ Loosen/tighten locknut if wheel wobbles noticeably or binds to a stop.  ❑ Ensure wheel bearings are clean and free of moisture. ❑ Inspect tires for flat spots and wear. ❑ If pneumatic tires check for proper inflation. ❑ Check that all labels are present and legible. Replace if necessary. Part No 1110545 A4 Owner’s Manual...
  • Page 18: Inspect/Adjust Weekly

    ❑ Ensure pivot points are free of wear and looseness.  ❑ Inspect upholstery fastening flaps to ensure they securely latch. ❑ Inspect seat positioning strap for any signs of wear. Ensure buckle latches. Verify hardware that attaches strap to frame is  secure and undamaged. Replace if necessary. ❑ Ensure camber bar mounting clamps are securely tightened. ❑ Loosen/tighten locknut if wheel wobbles noticeably or binds to a stop.  ❑ Ensure wheel bearings are clean and free of moisture. Inspect/Adjust Periodically ❑ Ensure wheelchair rolls straight (no excessive drag/pull to one side). ❑ Ensure wheel locks are easy to engage.  ❑ Ensure that the casters are free of debris. ❑ Inspect seat and back upholstery for rips or sagging.  ❑ Ensure camber bar mounting clamps are securely tightened. ❑ Ensure no excessive side movement or binding when lifted and spun.  ❑ Inspect handrims for signs of rough edges or peeling. ❑ Clean upholstery and armrests. ❑ Ensure wheel bearings are clean and free of moisture. ❑ Check that all labels are present and legible. Replace if necessary. A4 Owner’s Manual Part No 1110545...
  • Page 19: Troubleshooting

    DO NOT use your wheelchair unless it has the proper tire pressure (p.s.i.). DO NOT overinflate the tires. Failure to follow these suggestions may cause the tire to explode and cause bodily harm. The recommended tire pressure is on the sidewall of the tire. Recommended tire pressure is listed on the sidewall of the tire. Part No 1110545 A4 Owner’s Manual...
  • Page 20 As with any vehicle, the wheels and tires should be checked periodically for cracks and wear, and should be replaced if damaged. The wheels, casters and tires should be checked periodically for cracks and wear, and should be replaced when  necessary. Contact a qualified technician or Invacare customer support at the telephone numbers on the back of this  manual. Regularly check for loose spokes in the rear wheels. If loose, have them adjusted. Contact a qualified technician or  Invacare customer support at the telephone numbers on the back of this manual. Periodically check handrims to ensure they are secured to the rear wheels. Refer to Handrim Replacement on page 39. Periodically adjust wheel locks as tires wear. Refer to Wheel Lock Adjustment/Replacement on page 40. ® Periodically check caster wheel bearings to make sure they are clean and free from moisture. Use a Teflon  lubricant  if necessary. 10. Check upholstery for sagging, rips or tears. 11. Clean upholstery with mild soap and water. 12. Replace any labels that are missing, worn or torn. A4 Owner’s Manual Part No 1110545...
  • Page 21: Section 4-Upholstery

    MUST be securely fastened before applying the back upholstery cover. The adjustable tension back should be checked whenever entering the wheelchair to ensure that the fas- tening/adjuster straps are securely fastened. Part No 1110545 A4 Owner’s Manual...
  • Page 22: Removing/Installing Adjustable Tension Back Upholstery

    NOTE: For this procedure, refer to FIGURE 4.3. Remove the seat cushion from the wheelchair. Remove the phillips screws that secure the existing seat  upholstery to the seat frame. Remove the existing seat upholstery. Install the NEW seat upholstery by reversing the above  Seat steps. Upholstery Reinstall the seat cushion onto the wheelchair.  WHEELCHAIR DEPTH NUMBER OF SCREWS 14 to 15-inches 16 to 17-inches Seat Frame 18-inches FIGURE 4.3 Seat Upholstery Replacement 19 to 20-inches1 22-inches1 A4 Owner’s Manual Part No 1110545...
  • Page 23: Unfolding/Folding The Back

    NOTE: For this procedure, refer to FIGURE 4.4. WARNING Back MUST be locked securely in place before using the wheelchair. To unfold the back, lift up on the back canes and pull back towards the rear of the wheelchair until it locks into place. To fold the back, pull up on the cord and push the back canes forward towards the front of the wheelchair. Back Cane NOTE: Back Upholstery removed for clarity. Rear of Wheelchair Front of Wheelchair Back Release Cord (Not Shown) FIGURE 4.4 Unfolding/Folding the Back Part No 1110545 A4 Owner’s Manual...
  • Page 24: Section 5-Frame

    FIGURE 5.1 Back Angle Adjustment WARNING Push pin of the back cane insert bar MUST be protruding through hole in each back cane. Ensure that both back cane insert bars are at same height before reassembling the wheelchair. A4 Owner’s Manual Part No 1110545...
  • Page 25: Rear Seat-To-Floor Height Adjustment

    After making adjustments, always make sure that ALL parts are properly tightened BEFORE using the wheelchair. NOTE: All A4 wheelchairs are manufactured with the REAR seat‐to‐floor height 1‐inch lower than the FRONT seat‐to‐floor height. REAR  seat‐to‐floor height adjustment slots are in 1/2‐inch increments. The number of available adjustment slots depends on the configuration of the  wheelchair. Refer to specifications in this manual for complete information. Remove the two screws, nylon washers and locknuts that secure the seat frame to the wheelchair frame.  Reposition the seat frame so the mounting hole is aligned with the desired mounting position in the wheelchair frame. Secure the seat frame to the wheelchair frame with the two screws, nylon washers and locknuts.  Wheelchair Frame Screw Nylon Washer Seat Mounting Positions Frame Locknut FIGURE 5.3 Rear Seat-to-Floor Height Adjustment Part No 1110545 A4 Owner’s Manual...
  • Page 26: Replacing Seat Frame

    Back Angle REMOVING/ INSTALLING THE Bracket INSTALLING BACK THE BACK Hook Washers Back Angle Bracket Locknuts Stop Stop Bolt Washer Seat Frame Seat Rail Nylon Spacer Hook Coved Spacer FIGURE 5.4 Replacing Seat Frame A4 Owner’s Manual Part No 1110545...
  • Page 27: Opening/Closing Camber Clamps

    REAR VIEW OF SUSPENSION RELEASE LEVER CAMBER CLAMP CAMBER CLAMP Axle Tube Camber Clamp Camber Insert Camber Clamp Closed Position Hex Screw Socket Screw Camber Clamp Quick Release Lever Open Position FIGURE 5.5 Opening/Closing Camber Clamps Part No 1110545 A4 Owner’s Manual...
  • Page 28: Determining Toe In/Toe Out

    DO NOT rotate the axle tube if the axle tube is locked out by the toe adjustment rings. If a locked out axle tube is rotated, damage to the toe adjustment rings will occur. NOTE: Refer to FIGURE 7 for a description of a locked out axle tube. There is NO adjustment required to maintain a correct toe in/toe out measurement. NOTE: The axle tube will be locked out by the toe adjustment rings and will NOT rotate. A4 Owner’s Manual Part No 1110545...
  • Page 29: Axle Tube Positioning For 0°/9°, 0°/12°, 3°/9°, 6°/9°, 3°/12° Or 6°/12° Camber Inserts

    Damage to the axle tube will occur. 0°, 3° or 6° Camber NOTE: For this procedure, refer to FIGURE 5.7. Open the camber clamps. Refer to Opening/Closing Camber Clamps on page 27. Slowly rotate the axle tube until the tab on the left toe adjustment ring is stopped against the LOWER edge of the camber  clamp. Close the camber clamps. Refer to Opening/Closing Camber Clamps on page 27. 9° or 12° Camber NOTE: For this procedure, refer to FIGURE 5.7. Open the camber clamps. Refer to Opening/Closing Camber Clamps on page 27. Slowly rotate the axle tube until the tab on the RIGHT toe adjustment ring is stopped against the UPPER edge of the camber  clamp (FIGURE 7). Close the camber clamps. Refer to Opening/Closing Camber Clamps on page 27. Part No 1110545 A4 Owner’s Manual...
  • Page 30 Rotate UP Only Rotate UP Only Rotate UP Only Adjustment Ring Right Toe Camber Clamp Adjustment Ring Right Tab Stopped Against Upper Edge Camber Clamp Of Camber Clamp FIGURE 5.7 Adjusting Toe In/Toe Out A4 Owner’s Manual Part No 1110545...
  • Page 31: Adjusting The Axle Tube

    Adjustment Ring 10. Reposition the camber inserts to the highest degree of  camber. Refer to Repositioning Camber Inserts (Adjusting  Rear Wheel Camber) on page 32. 11. Repeat STEP 3. Right Tab Stopped 12. Close the left camber clamp. Refer to Opening/Closing  against upper edge Camber Clamps on page 27. of camber clamp 13. Rotate the right toe adjustment ring until the tab stops  against the upper edge of the camber clamp. FIGURE 5.8 Adjusting The Axle Tube 14. Securely tighten set screw on right toe adjustment ring. 15. Repeat STEP 7. Part No 1110545 A4 Owner’s Manual...
  • Page 32: Repositioning Camber Inserts (Adjusting Rear Wheel Camber)

    DO NOT close the quick-release levers or tighten the socket screws or hex screws without cam- ber inserts in the axle tube. Damage to the axle tube will occur. Close the camber clamp. Refer to Opening/Closing Camber Clamps on page 27. Repeat STEPS 1‐8 for opposite side of wheelchair. NOTE: Before using the wheelchair, make sure both camber inserts are set to the same indexing mark. This will make sure the distance  between the rear wheel and the wheelchair is the same on both sides. 10. Wheelchairs equipped with 0°/9°, 0°/12°, 3°/9°, 6°/9°, 3°/12° or 6°/12° camber inserts ‐ Adjust the toe in/toe out of the  wheelchair. Refer to Adjusting Toe In/Toe Out on page 28. A4 Owner’s Manual Part No 1110545...
  • Page 33: Adjusting Wheelbase Length (Adjusting Center Of Gravity)

    EXTREME care MUST be taken when changing the stability of the wheelchair. Refer to Stability on page 9. NOTE: The camber bar is always mounted to the bottom of the wheelchair frame. Perform one of the following: A. Non‐suspension ‐ Loosen, but do not remove the hex screw that secures each of the top clamps to the wheelchair frame. Suspension ‐ Loosen, but do not remove the two hex screws that secure each of the top clamps to the wheelchair frame. Position the camber clamps on the wheelchair frame at the desired position. A. Lengthening The Wheelbase ‐ will increase the stability and maintain standard maneuverability of the wheelchair. Shortening The Wheelbase ‐ will increase the maneuverability, distribute additional weight onto the rear wheels, and make the  wheelchair less stable. NOTE: The performance of the wheelchair will be affected if the camber clamps do not sit flush on the wheelchair frame. Part No 1110545 A4 Owner’s Manual...
  • Page 34: Adjusting Wheelbase Width

    Otherwise, the camber inserts will not be securely tightened in the axle tube resulting in possible injury to the user or damage to the wheelchair. A4 Owner’s Manual Part No 1110545...
  • Page 35: Replacing Axle Tube

    Camber Insert Axle Tube Camber Clamp Camber Insert Indexing Rings FIGURE 5.11 Adjusting Wheelbase Width Replacing Axle Tube NOTE: For this procedure, refer to FIGURE 5.12 on page 36. NOTE: There is no need to remove the two camber clamps when replacing the axle tube. Note the position of the camber inserts so they can be installed to the original position in the new axle tube. Open the camber clamps. Refer to Opening/Closing Camber Clamps on page 27. Remove the two rear wheels and camber inserts positioned in the axle tube. Loosen, but do not remove the two set screws that secure the toe adjustment rings to the axle tube. Pull the existing axle tube through one of the camber clamps. Remove the toe adjustment rings from the existing axle tube. Pull the existing axle tube through the other camber clamp and remove from the wheelchair. Slide the new axle tube through one of the camber clamps. Make sure the notches in the axle tube are towards the rear  of the wheelchair and the slots in the axle tube are facing up. Install the toe adjustment rings onto the new axle tube. Make sure the stops on the toe adjustment rings are facing  towards the outside of the wheelchair. NOTE: DO NOT tighten the set screws that secure the toe adjustment rings to the axle tube at this time. Part No 1110545 A4 Owner’s Manual...
  • Page 36 14. Ensure the camber clamps are closed. Refer to Opening/Closing Camber Clamps on page 27. Rear of Notch in Axle Tube Wheelchair Slot in Axle Tube Toe Adjustment Ring Camber Insert Axle Tube Camber Clamp Camber Clamp Set Screw Indexing Ring Camber Insert FIGURE 5.12 Replacing Axle Tube A4 Owner’s Manual Part No 1110545...
  • Page 37: Section 6-Wheels

    Quick Release Axle WARNING Wheel Hub Make sure the detent pin and locking pins of the quick-release axle are fully released before FIGURE 6.2 Adjusting Quick- Release Axle operating the wheelchair. Keep locking pins clean. Reinstall rear wheel onto the wheelchair. Part No 1110545 A4 Owner’s Manual...
  • Page 38: Installing Quad-Release Axle

    If the quad‐release handle is not releasing the locking pins completely, rotate the quad‐release handle  approximately one‐quarter ( ) turn clockwise. • If the quad‐release handle hits the spokes of the rear wheel when assembled, rotate the quad‐release handle  approximately one‐quarter ( ) turn counterclockwise. Tighten the locking screw. Quad Release Handle Locking Pins Reinstall the rear wheel and quad‐release axle onto the  wheelchair. Flip the handle of the quad‐release axle down to release  the detent pin ensuring that the locking pins are fully  Camber Bushing released. Repeat the above procedures until the quad‐release axle  Locking Screw locks correctly. FIGURE 6.4 Adjusting The Quad-release Handle - In or Out A4 Owner’s Manual Part No 1110545...
  • Page 39: Removing The Play From The Rear Wheels

    Make sure detent pin is fully released before operating the wheelchair. Reinstall rear wheel to the wheelchair. Repeat STEPS 1‐8 for the remaning rear wheel if  necessary. FIGURE 6.6 Handrim Replacement Repeat the procedure for the opposite rear wheel if  necessary. Repairing/Replacing Rear Wheel Tire/Tube WARNING Replacement of a pneumatic tire or tube MUST be performed by a qualified technician. Part No 1110545 A4 Owner’s Manual...
  • Page 40: Wheel Lock Adjustment/Replacement

    HIgh Mount Wheel Lock inch inch Undermount Wheel Lock Shoe High Mount Wheel Lock Shoe Tire Tire FIGURE 6.7 Wheel Lock Adjustment/Replacement Replacing/Adjusting Casters NOTE: For this procedure, refer to FIGURE 6.8. NOTE: Both casters should be the same size. NOTE: Non‐suspension casters cannot be adjusted as they mount in one position only.  Remove the bolt and locknut that secure the front caster to the fork. Remove front caster and axle spacers from fork. Perform one of the following: A. Short Fork ‐ Install the NEW caster, bolt, locknut and axle spacers onto the fork and securely tighten.  Long Fork ‐ Perform the following steps: Determine the desired mounting hole for the caster installation. Refer to DETAIL ʺAʺ.  ii. Line up the front caster and two spacers with the mounting hole in the fork determined in STEP B‐1. A4 Owner’s Manual Part No 1110545...
  • Page 41: Replacing Forks

    Caster Head Tube above and/or below the headtube. Note the number and position of  Nylon Washer these washers for reinstallation. Drop the fork out of the caster headtube. Slide the new fork into the caster headtube. Fork Spacer NOTE: Check bearing assemblies and replace if necessary Ensure that fork slides completely into caster headtube. Install washer(s)/spacer(s) and secure with locknut. FIGURE 6.9 Replacing Forks WARNING Improper positioning of the washer will prohibit the free movement of the fork. Reinstall existing/install new front casters onto the wheelchair. Refer to Replacing/Adjusting Casters on page 40. Part No 1110545 A4 Owner’s Manual...
  • Page 42: Adjusting Caster Height

    Any change to one or any combination of the ten may cause the wheelchair to decrease in stability. EXTREME care must be taken when changing the stability of the wheelchair. Refer to the chart in General Guidelines on page 9 of this manual. A4 Owner’s Manual Part No 1110545...
  • Page 43: Determining Frame Size

    After determining the caster size, replace the casters and/or forks. Refer to Replacing/Adjusting Casters on page 40  and/orReplacing Forks on page 41. After replacing or adjusting the caster size, refer to Adjusting Caster Height on page 42 to add/remove fork spacers and  add/remove washers to ensure caster headtubes are perpendicular to the ground. Anti‐tipper height (if applicable) MUST be adjusted to maintain 1  to 2 inch clearance between the bottom of the anti‐tipper  wheels and the floor. Refer to Anti‐tipper Adjustment/Replacement on page 50. Ensure wheel locks engage properly. Refer to Wheel Lock Adjustment/Replacement on page 40. SHORT FORK LONG NON SUSPENSION FORK LONG SUSPENSION FORK NON SUSPENSION ONLY Middle Middle Bottom Bottom FIGURE 6.12 Front Seat-to-floor Height Adjustment Part No 1110545 A4 Owner’s Manual...
  • Page 44 Short N/A 18 inches 24 inch 5 inch Long Middle 18 inches 26 inch 5 inch Short N/a 18 inches 26 inch 5 inch Long Middle 18 inches 26 inch 6 inch Long Bottom NOTE: A 17‐inch front seat‐to‐floor height is not available for wheelchairs with the suspension option. A4 Owner’s Manual Part No 1110545...
  • Page 45 24 inch 5 inch Long - Middle 19 inches 26 inch 5 inch Short N/A 19 inches 26 inch 5 inch Long - Middle 19 inches 26 inch 6 inch Long - Bottom NOTE: A 17‐inch front seat‐to‐floor height is not available for wheelchairs with the suspension option. Part No 1110545 A4 Owner’s Manual...
  • Page 46 20 inches 24 inch 5 inch Long - Middle 20 inches 26 inch 5 inch Short N/A 20 inches 26 inch 5 inch Long - Middle 20 inches 26 inch 6 inch Long - Bottom A4 Owner’s Manual Part No 1110545...
  • Page 47 21 inches 24 inch 5 inch Long - Middle 21 inches 26 inch 5 inch Short N/A 21 inches 26 inch 5 inch Long - Middle 21 inches 26 inch 6 inch Long - Bottom Part No 1110545 A4 Owner’s Manual...
  • Page 48 22 inches 24 inch 5 inch Long - Middle 22 inches 26 inch 5 inch Short N/A 22 inches 26 inch 5 inch Long - Middle 22 inches 26 inch 6 inch Long - Bottom A4 Owner’s Manual Part No 1110545...
  • Page 49: Section 7-Footrest

    Position the footplate to the appropriate angle for the user. Depth Mounting Tighten the four locknuts. Positions Footplate Depth Adjustment NOTE: For this procedure, refer to FIGURE 7.1. FIGURE 7.1 Replacing the Footrest/Footplate Angle Note the height of the footrest and the angle of the  Adjustment/Footplate Depth Adjustment footplate for reinstallation. Loosen, but do not remove the two allen screws securing the footrest tubes to the wheelchair frame. Remove the two footrest tubes from the wheelchair frame. Loosen, but do not remove the four locknuts that secure the footplate to the footrest tubes. Remove the footrest tubes from the footrest. Insert the footrest tubes into one of two depth mounting positions appropriate for the user. Adjust the angle of the footrest plate to the position noted in STEP 1. Tighten the four locknuts that secure the footplate to the footrest tubes. Insert the footrest tubes into the wheelchair frame. 10. Adjust the footrest tubes to the height noted in STEP 1. 11. Tighten the two allen screws to secure the footrest tubes to the wheelchair frame. Part No 1110545 A4 Owner’s Manual...
  • Page 50: Section 8-Anti-Tipper

    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 51: Anti-Tipper Replacement

    1112178 inches DETAIL “A” - ANTI TIPPER DETAIL “B” ADJUSTMENT HOLES Anti-Tipper Top Adjustment Hole to 2 inch Ground/Floor clearance Hole Camber Clamp See Details “A” and “B” Anti-Tipper Socket FIGURE 8.1 Anti-tipper Replacement Part No 1110545 A4 Owner’s Manual...
  • Page 52: Section 9-Arms

    Slide T‐arm into T‐arm socket until the locking lever is in  the slot in the T‐arm socket and an audible ʺclickʺ is heard. Pull up on T‐arm to make sure T‐arm is locked in place. NOTE:  If the T‐arm does not slide in the T‐arm socket as desired,  Mounting Screw adjust the T‐arm socket. Refer to Adjusting The T‐ Arms on page 53. Adjust the T‐arm for desired height, width and depth, if  T-arm socket necessary. Refer to Adjusting The T‐ Arms on page 53. Repeat STEPS 1‐4 for opposite side of wheelchair. Socket Screw Outer T- Arm Bracket Removing T-Arms FIGURE 9.2 Installing/Removing T-arms Press in on the locking lever and lift the T‐arm straight up  and out of the T‐arm socket. NOTE: If the T‐arm does not slide up and down in the T‐arm socket  as desired, adjust the T‐arm socket. Refer to Adjusting The T‐  Arms on page 53. Repeat for opposite side of the wheelchair. A4 Owner’s Manual Part No 1110545...
  • Page 53: Adjusting The T- Arms

    A. Desk Length Arms ‐ to one of three positions depending  arm tube 180° to on the desired arm pad depth. obtain two Full Length Arms ‐ to one of five positions depending on  positions Socket Screws the desired arm pad depth. NOTE: Additional positions are obtainable by turning the arm  tube 180°.  Re‐secure the arm tube to the T‐arm post with the two  socket screws. Torque to 60‐70 in./lbs. Reattach the arm pad to the arm tube with the two  mounting screws. Tighten securely. Mounting Screw Mounting Screw Repeat for the opposite side, if necessary. T-Arm Post FIGURE 9.5 Adjusting The T- Arms - Depth Part No 1110545 A4 Owner’s Manual...
  • Page 54: Adjusting T-Arm Sockets

    Perform one of the following: A. Small Side Guards ‐ Move the bottom clamp up one of  two mounting positions in the side guard. Socket Screws B. Large Side Guards ‐ Move the bottom clamp up one of  three mounting positions in the side guard. Bottom Clamp Secure the side guard to the bottom clamp with the two  socket screws. Install the T‐arm onto the wheelchair. Refer to Installing/ Removing T‐arms on page 52. FIGURE 9.7 Adjusting T-arm Transfer Assists and/or Side Guards Replacing T-arm Locking Lever NOTE: For this procedure, refer to FIGURE 9.8. Remove T‐arm from wheelchair. Refer to Installing/Removing T‐arms on page 52. Remove the mounting screw and locknut that secure the existing locking lever to the bottom bracket. A4 Owner’s Manual Part No 1110545...
  • Page 55: Installing The Half Arm Socket

    DETAIL “A” - MOUNTING THE SPRING Extended Ends Mounted Spring Spring Notch Locknut Mounting Screw Locking Lever FIGURE 9.8 Replacing T-arm Locking Lever Installing The Half Arm Socket NOTE: For this procedure, refer to FIGURE 9.9. Position arm socket in line with mounting holes on the wheelchair frame making sure the arm socket is towards the  inside of the wheelchair frame. Position the top coved washer between the arm socket and the wheelchair frame. NOTE: The slot in the arm socket is used with either the top or the bottom mounting holes in the arm socket depending on the half arm  height desired. Install top hex screw through the slot in the arm socket, top coved washer, wheelchair frame, and washer and loosely  tighten with locknut. Slide the arm socket up and/or down until the bottom mounting hole in the arm socket is in line with the mounting hole  in the wheelchair frame. Part No 1110545 A4 Owner’s Manual...
  • Page 56: Adjusting Half Arm Height

    FIGURE 9.9 Installing The Half Arm Socket Adjusting Half Arm Height NOTE: For this procedure, refer to FIGURE 9.10. Remove the half arm from the arm socket. Remove the hex screw, two washers and locknut mounted  Half Arm in the arm socket that determine the half arm height. Reposition hex screw and one washer to one of three  positions depending on the desired height. Locknut Three Mounting Retighten the hex screw and washer to the arm socket  Positions with the remaining washer and locknut. Reinstall the half arm into the arm socket. Washer Repeat STEPS 1‐5 for the opposite side, if necessary. Washer Hex Screw Arm Socket FIGURE 9.10 Adjusting Half Arm Height A4 Owner’s Manual Part No 1110545...
  • Page 57: Section 10-Suspension

    FIGURE 10.1 Replacing Rear Elastomers Replacing Front Elastomers NOTE: For this procedure, refer to FIGURE 10.2. CAUTION DO NOT use excessive force when removing/installing the threaded sleeve from/onto the fork. Damage to the threaded sleeve may occur. Using two allen wrenches, turn mounting screws in opposite directions and remove one mounting screw from fork. NOTE: NOTE: One mounting screw will not turn. Remove the threaded sleeve and mounting screw assembly from the fork. DO NOT use excessive force. Remove the EXISTING elastomer from the fork. Install NEW elastomer into fork. NOTE: Make sure the elastomer sits in the two recessed areas on the fork. Part No 1110545 A4 Owner’s Manual...
  • Page 58 Possible injury or damage could result. Apply Loctite 242 to the mounting screw. Reinstall the mounting screw into the threaded sleeve and tighten securely. Upper Portion of Mounting Screw Fork (Use Loctite 242) Lower Portion of Fork Elastomer Mounting Screw Threaded Sleeve FIGURE 10.2 Replacing Front Elastomers A4 Owner’s Manual Part No 1110545...
  • Page 59: Limited Warranty

    This warranty gives you specific legal rights and you may also have other legal rights which vary from state to state. Invacare warrants the frame to be free from defects in materials and workmanship for a lifetime from date of purchase; all remaining components for one (1) year from date of purchase except upholstered materials, padded materials and tires/wheels.
  • Page 60 Elyria, Ohio USA Mississauga Ontario symbols ™and ®. All trademarks are owned by or 44036-2125 L4Z 4G4 Canada licensed to Invacare Corporation or its subsidiaries 800-333-6900 800-668-5324 unless otherwise noted. Natural Fit is a registered trademark of Three Rivers. Spinergy is a registered trademark of Spinergy, Inc.

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