Invacare Top End Crossfire T7A User Manual
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Invacare Top End Crossfire T7A User Manual

Invacare Top End Crossfire T7A User Manual

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Invacare
Crossfire™T7A Wheelchair
User Manual
DEALER: This manual MUST be given to the user of the product.
USER: BEFORE using this product, read this manual and save for future reference.

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Summary of Contents for Invacare Top End Crossfire T7A

  • Page 1 ® ® Invacare Crossfire™T7A Wheelchair User Manual DEALER: This manual MUST be given to the user of the product. USER: BEFORE using this product, read this manual and save for future reference.
  • Page 2 © 2010 Invacare Corporation. All rights reserved. Republication, duplication or modification in whole or in part is prohibited without prior written permission from Invacare. Trademarks are identified by ™ and ®. All trademarks are owned by or licensed to Invacare Corporation or its subsidiaries unless otherwise noted.

  • Page 3: Table Of Contents

    A Note to Wheelchair Assistants........................................20 Tipping ..................................................21 Stairways ................................................22 Escalators ................................................24 Transferring To and From Other Seats......................................24 SAFETY INSPECTION Safety Inspection Checklist ..........................................25 Troubleshooting..............................................28 Maintenance ................................................28 ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...
  • Page 4 Replacing/Adjusting the Wheel Locks......................................59 Changing Wheel Lock Handle Position ......................................60 Converting Wheel Lock From Push-to-Lock to Pull-to-Lock or Pull-to-Lock to Push-to-Lock ..................61 11 WHEELS Removing/Installing Rear Wheels........................................62 Adjusting Quick-Release Axles......................................... 63 ® Invacare Crossfire™T7A Wheelchair Part No 1167484...
  • Page 5 Determining/Setting Toe In/Toe Out......................................76 Adjusting Fork Tension ............................................77 Removing/Installing/Repositioning the Caster Assemblies ................................. 79 Removing/Installing the Fork Assembly ......................................81 Removing/Installing the Elastomers (Suspension Forks Only)..............................82 12 ANTI-TIPPER Adjusting/Replacing Anti-tipper ........................................84 ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...

  • Page 6: General

    Caution indicates a potentially hazardous situation which, if not avoided, may result in property damage or minor injury or both. IMPORTANT Indicates a hazardous situation that could result in damage to property if it is not avoided. Gives useful tips, recommendations and information for efficient, trouble-free use.  ® Invacare Crossfire™T7A Wheelchair Part No 1167484...

  • Page 7: 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 Crossfire frame to be free from defects in materials and workmanship for the original purchaser for the 5 years from the date of purchase.

  • Page 8: Safety

    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 9 Wheelchair Tie Down Restraints Invacare recommends that wheelchair users not be transported in vehicles of any kind while in wheelchairs. As of this date, the Department of Transportation has not approved any tie-down systems for transportation of a user while in a wheelchair, in a moving vehicle of any type.

  • Page 10: Operating Information

    DO NOT stand on the frame of the wheelchair. ALWAYS keep hands and fingers clear of moving parts to avoid injury. ® Invacare Crossfire™T7A Wheelchair Part No 1167484...

  • Page 11: 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.

  • Page 12: Overview

    Keep detent balls clean. P/N 1026960 Rev D Serial Number Label Location W EIG H T CAPACITY 250 LBS. (114 kgs.) REFER TO O W N ER’S MAN UAL P/N 1111013 ® Invacare Crossfire™T7A Wheelchair Part No 1167484...

  • Page 13: Component Identification

    3 OVERVIEW Component Identification Armrest Back Upholstery Seat Upholstery Rear Wheel Wheelchair Frame Rear Wheel Axle Front Caster Handrim Wheel Lock ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...

  • Page 14: Typical Product Parameters

    3 OVERVIEW Typical Product Parameters  All specifications are approximate. CROSSFIRE T7A CT7A MODEL NUMBER: Tapered front end (Standard), V-Style (Optional) FRONT FRAME: FRONT FRAME ANGLE: 70°, 75°, 80°, 85° FOOTREST: Tubular footrest in same material as frame (Standard), Adjustable Angle NCO, Plastic or Carbon Fiber Cover (Optional)
  • Page 15 3 OVERVIEW CROSSFIRE T7A BACK ANGLE -8°, -4°, 0°, +4°, +8° FOLDING: BACK UPHOLSTERY: U850 (Balistic Black) - Adjustable Tension by Straps Breathable Mesh (Black) Adjustable Tension by Straps Foldover Sail Cloth - Screw-On SEAT UPHOLSTERY: AXLE POSITIONS/CENTER Range of Adjustability in both positions:...
  • Page 16 3 OVERVIEW CROSSFIRE T7A CASTERS 3, 4 or 5-inch CASTER SIZE: Semi-pneumatic (Standard), Soft Roll or Lighted (Optional) CASTER TYPE: Optional ANTI-TIPPERS: *WEIGHT: 17.8 lbs SHIPPING WEIGHT: 30 lbs WEIGHT LIMITATION: 250 lbs *16 x 16 w/ Spinergy wheels, Primo hi-pressure tires, screw - on seat upholstery, mesh back upholstery w/ adjustable ...

  • Page 17: Safety/Handling Of Wheelchairs

    Use this information only as a “basic” guide. The techniques that are discussed on the following pages have been used successfully by many. Individual wheelchair users often develop skills to deal with daily living activities that may differ from those described in this manual. Invacare recognizes and encourages each individual to try what works best for him/her in overcoming architectural obstacles that they may encounter, however, ALL WARNINGS and CAUTIONS given in this manual MUST be followed.
  • Page 18 DO NOT move beyond the center of gravity. Virtually all activities which involve movement in the wheelchair have an effect on the center of gravity. Invacare recommends using seat positioning straps for additional safety while involved in activities that shift your weight.
  • Page 19 Position wheelchair as close as possible to the desired object. Point front casters forward to create the longest possible wheelbase. Reach back only as far as your arm will extend without changing your sitting position. ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...

  • Page 20: Coping With Everyday Obstacles

    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. ® Invacare Crossfire™T7A Wheelchair Part No 1167484...

  • Page 21: Tipping

    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 22: Stairways

    Extreme caution is advised when it is necessary to move an occupied or unoccupied wheelchair up or down the stairs. Invacare recommends that, if possible, the user be removed from the wheelchair prior to moving. Invacare recommends using two assistants and making thorough preparations. Make sure to use only secure, non-detachable parts for hand-held supports.
  • Page 23 The wheelchair should not be lowered until the last stair has been negotiated and the wheelchair has been rolled away from the stairway. If necessary, rotate the anti-tippers so the wheels are facing down. ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...

  • Page 24: Escalators

    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 5 Transferring To and From Other Seats ® Invacare Crossfire™T7A Wheelchair Part No 1167484...

  • Page 25: Safety Inspection

    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. ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...
  • Page 26 Inspect handrims for signs of rough edges or peeling. ❑ Inspect spokes for bent or broken spokes. ❑ Ensure All spokes uniformly tight. ❑ Inspect wheel/fork assembly for proper tension by spinning caster; caster should come to a gradual stop. ® Invacare Crossfire™T7A Wheelchair Part No 1167484...
  • Page 27 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. ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...

  • Page 28: Troubleshooting

    Replace any labels that are missing, worn, or torn. Refer to Label Locations on page 12 for a listing of the labels and their locations CAUTION DO NOT overtighten hardware attaching to the frame. This could cause damage to the frame tubing. ® Invacare Crossfire™T7A Wheelchair Part No 1167484...
  • Page 29 As with any vehicle, the wheels and tires should be checked periodically for cracks and wear, and should be replaced if damaged. Replace as recommended, refer to Replacing/Repairing Rear Wheel Tire/Tube on page 30 and Replacing/Repairing Caster Tire/Tube on page 30. ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...
  • Page 30 Invacare recommends that rear wheel tire/tube and caster tire/tube be replaced every five years. 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.

  • Page 31: Footrest

    Loosen the allen screw of the two clamps that secure the footrest Clamps (Allen Screws) to the wheelchair frame. Wheelchair Replacing the Footrest Frame Remove existing footrest. Install new footrest. Footrest FIGURE 1 Adjusting/Replacing Standard Footrest ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...

  • Page 32: Replacing/Adjusting Optional Adjustable Angle Footrest

    Loosen, but DO NOT remove the two mounting screws and locknuts (not shown) that secure the footplate to the two footrest tubes. Position the footplate to the necessary angle to accommodate the user. Retighten the two mounting screws and locknuts.  The locknuts should lie in the channel of the footplate clamp. ® Invacare Crossfire™T7A Wheelchair Part No 1167484...
  • Page 33 The locknuts should lie in the channel of the footplate half clamp. Mounting Clamp Positions (Allen Wheelchair Screw) Frame Adjustments Depth Clamp (Allen Screw) Mounting Screws Angle Footrest Locknut Tube Height (Not Shown) Footplate FIGURE 2 Replacing/Adjusting Optional Adjustable Angle Footrest ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...

  • Page 34: Arms

    Remove the split ring of the back release cord from the plunger pin in the back stop insert. Remove the plunger pin from the back stop insert. Perform STEPS 2-3 on remaining back stop insert. Plunger Pin Back Stop Insert Split Ring Back Release Cord FIGURE 1 Disconnect Back Release Cord ® Invacare Crossfire™T7A Wheelchair Part No 1167484...
  • Page 35 Right Side Armrest Socket Locknut Back Stop Insert Washers Washers Weldment Mounting Back Stop Insert Weldment Armrest Screws Locknut Socket Washers Washers Left Side Armrest Socket Armrest Socket FIGURE 3 Assemble Back Stop Insert and Arm Socket ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...
  • Page 36 13. Install the plunger pin into the back stop insert (FIGURE 5). 14. Secure the split ring of the back release cord onto the plunger pin in the back stop insert (FIGURE 5). 15. Repeat STEPS 21-22 for remaining back stop insert. ® Invacare Crossfire™T7A Wheelchair Part No 1167484...
  • Page 37 7 ARMS Plunger Pin Back Stop Insert Split Ring Back Release Cord FIGURE 5 Connect Back Release Cord 16. Install the back. Refer to Removing/Installing the Back Frame on page 55. ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...

  • Page 38: Installing/Removing/Adjusting The Swingaway Padded Armrest

    Install locknut and securely tighten. Reinstall the swing away padded armrest into the arm socket. Three Mounting Repeat STEPS 1-5 for the opposite side, if necessary. Positions Mounting Bolt FIGURE 6 Installing/Removing/Adjusting the Swingaway Padded Armrest ® Invacare Crossfire™T7A Wheelchair Part No 1167484...

  • Page 39: Removing/Installing And Adjusting T-Arms

    Reinstall the height adjustment screw and locknut in one of the three height adjustment holes on the t-arm of the armrest. Secure tightly. Reinstall the T-arm. Refer to Removing/Installing T-Arms on T-Arm Bracket page 39. FIGURE 7 Adjusting T-Arm Height ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...
  • Page 40 Install T-arm bracket in desired mounting position on seat rail. Secure the T-arm bracket to the seat rail with two mounting screws T-Arm and locknuts. Securely tighten. Bracket Additional Mounting mounting hole for Screws T-bracket FIGURE 8 Adjusting T-Arm Position ® Invacare Crossfire™T7A Wheelchair Part No 1167484...

  • Page 41: Back

    The back should have a small amount of movement when locked in the open position. Plunger pins should snap in and release easily without resistance. ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...
  • Page 42 Seat Seat Back Back Back Release Cord Back Release Cord Back Cane (Shown in DETAIL “C” Folded Position) Back Cane Mounting Bracket Adjustment Square Locking Holes for Plunger Pin FIGURE 1 Unfolding/Folding the Back ® Invacare Crossfire™T7A Wheelchair Part No 1167484...

  • Page 43: Back Angle Adjustment

    Position the adjustment square in the recess of the back plate with the hole located aligned with a number (FIGURE 3). Secure the adjustment square to the back angle plate with the mounting screw. Tighten securely. ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...
  • Page 44 11. Completely tighten jam nut up against bottom of back cane (Detail “D”). When adjusted properly, the back should have a small amount of movement when locked in the open position. Plunger pins  should snap in and release easily without resistance. ® Invacare Crossfire™T7A Wheelchair Part No 1167484...
  • Page 45 Square DETAIL “D” DETAIL Jam Nut “C” Adjustment Placement Square Back Angle Screw Plate Seat Rail Back angle plate, mounting screw and  adjustment square are removed for clarity. FIGURE 2 Back Angle Adjustment ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...
  • Page 46 Back Angle Plate Seat Rail -4° Back Cane Hole in adjustment square will align with 4- when installed in 79° this orientation Back Angle Plate Seat Rail FIGURE 3 Back Angle Adjustment - Adjustment Square Position ® Invacare Crossfire™T7A Wheelchair Part No 1167484...
  • Page 47 Seat Rail Plate +4° Back Cane Hole in adjustment square will align with 4+ when installed in 87° this orientation Back Angle Plate Seat Rail FIGURE 4 Back Angle Adjustment - Adjustment Square Position ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...

  • Page 48: Adjustable Tension Back Upholstery

    The third is a sacral support depending upon how far or tight the flap is pulled under the seat cushion. • The adjuster fastening straps can be adjusted at various levels of tension to accommodate individual end-users. ® Invacare Crossfire™T7A Wheelchair Part No 1167484...
  • Page 49  For this procedure, refer to FIGURE 7 and FIGURE 8. If replacing the back upholstery cover, adjustable tension back upholstery and/or lumbar strap, remove the existing upholstery/lumbar strap and install the new upholstery/lumbar strap. ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...
  • Page 50 Return back to upright position. Refer to Unfolding/Folding the Back on page 41. Install the back upholstery. Refer to Removing the Back Upholstery Cover Installing the Adjustable Tension Back Upholstery Install the adjustable tension back upholstery onto the back canes (Details “D”, “F”, and “A”). ® Invacare Crossfire™T7A Wheelchair Part No 1167484...
  • Page 51 Fastening Strips located underneath DETAIL Back Canes “D” DETAIL “C” Adjustable Tension Back Upholstery Lumbar Strap FIGURE 7 Removing/Installing the Back Upholstery Cover, Adjustable Tension Back Upholstery and Lumbar Strap ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...

  • Page 52: Removing/Installing Foldover Back Upholstery

    Any change to one or any combination of the five may cause the wheelchair to decrease in stability. Use EXTREME caution when using a new seating position. The addition of anti-tippers may be required. ® Invacare Crossfire™T7A Wheelchair Part No 1167484...

  • Page 53: Back Height Adjustment

    Ensure that both back cane inserts are at the same height BEFORE reassembling the wheelchair. Press the adjustment pin on the back cane insert tube in and adjust the back height to one of four heights depending on original back height: ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...
  • Page 54 Tension Back Upholstery and Lumbar Strap on page 49. Check the tautness of the back. Refer to Adjusting the Tautness of the Back on page 49. Insert Hole Number Back Cane Back Cane Adjustment Pin FIGURE 10 Back Height Adjustment ® Invacare Crossfire™T7A Wheelchair Part No 1167484...

  • Page 55: Removing/Installing The Back Frame

    Repeat STEPS 17 - 18 for remaining back angle plate. Unfold back to upright position. Refer to Unfolding/Folding the FIGURE 11 Removing/Installing the Back Frame Back on page 41. ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...

  • Page 56: Seat

    Install new seat upholstery and secure in place with mounting screws. Tighten securely. Install the seat cushion onto the wheelchair. WHEELCHAIR DEPTH NUMBER OF SCREWS 14 to15 inches 16 to17 inches 18 inches 19 to 20 inches ® Invacare Crossfire™T7A Wheelchair Part No 1167484...

  • Page 57: Seat Angle Adjustment

    On the bottom of each crescent link, remove the locknut and washer from the mounting screw. Adjust seat angle by performing one of the following: • Moving top mounting screws to a new adjustment hole in each crescent link. ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...
  • Page 58 12. Check for stability. Refer to on page 9. Locknuts and DETAIL “A” Washers Seat Frame Mounting Screw Mounting Screw Crescent Side Link Frame Adjustment Holes Mounting Screw Mounting See Detail “A” Screw Side Frame FIGURE 2 Seat Angle Adjustment ® Invacare Crossfire™T7A Wheelchair Part No 1167484...

  • Page 59: Wheel Locks

    3/16-inch (1/8-inch for urethane wheels) measurement is obtained for correct wheel lock adjustment. Securely tighten the two mounting screw(s). Engage the wheel locks and push against the wheelchair and determine if the wheel locks engage the tires enough to hold the wheelchair. ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...

  • Page 60: Changing Wheel Lock Handle Position

    Rear Handle Mounting Screw Mounting Screw Securely tighten the front and rear handle mounting screws and and Locknut locknuts. Repeat STEPS 1-5 on remaining wheel lock handle. FIGURE 2 Changing Wheel Lock Handle Position ® Invacare Crossfire™T7A Wheelchair Part No 1167484...

  • Page 61: Converting Wheel Lock From Push-To-Lock To Pull-To-Lock Or Pull-To-Lock To Push-To-Lock

    Wheel Lock WHEEL LOCK IN WHEEL LOCK IN Handle Wheel Lock PULL-TO-LOCK PUSH-TO-LOCK Handle CONFIGURATION CONFIGURATION Set Screw (in Lower Stop Position) FIGURE 3 Converting Wheel Lock From Push-to-Lock to Pull-to-Lock or Pull-to-Lock to Push-to-Lock ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...

  • Page 62: Wheels

    11.1 Removing/Installing Rear Wheels CAUTION Changing the size of the rear wheels can affect the performance of the wheelchair. Contact Invacare at the telephone numbers on the back of this manual before changing rear wheel size. Perform one of the following: •...

  • Page 63: Adjusting Quick-Release Axles

    Increase or decrease end play by adjusting the locknut on the end of the quick-release axle. Locking Reinstall rear wheel onto the wheelchair. Refer to Pins Detent Removing/Installing Rear Wheels on page 62. Quick-Release Axle Wheel FIGURE 2 Adjusting Quick-Release Axles ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...

  • Page 64: Replacing Quad-Release Axles

    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. Reinstall the rear wheel and quad-release axle onto the wheelchair. Refer to Removing/Installing Rear Wheels on page 62. ® Invacare Crossfire™T7A Wheelchair Part No 1167484...

  • Page 65: Handrim Replacement

    Remove all air from the tube by pressing down on the pin in the center of the valve stem. While carefully holding the tire, tube and rim strip to one side, hold the allen screws and remove the locknuts that secure the handrim to the rear wheel. ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...

  • Page 66: Repairing/Replacing Rear Wheel, Tire/Tube

    Replacement of the tire or tube MUST be performed by a qualified technician. CAUTION Changing the size of the rear wheels can affect the performance of the wheelchair. Contact Invacare at the numbers on the back cover BEFORE performing this procedure.

  • Page 67: Adjusting Wheelbase Length, Adjusting Center Of Gravity (Cog)

    Front Wheelbase Length CAUTION Caster Ensure one empty mounting position remains between the two socket screws, otherwise FIGURE 6 Adjusting Wheelbase Length, Adjusting Center of damage to the wheelchair may occur. Gravity (COG) ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...
  • Page 68 Socket Screws Mounting Mounting Positions Positions Socket Screws Mounting Positions Mounting Socket Socket Positions Screws Screws Mounting Mounting Positions Socket Screws Positions Socket Screws FIGURE 7 Adjusting Wheelbase Length, Adjusting Center of Gravity (COG) ® Invacare Crossfire™T7A Wheelchair Part No 1167484...
  • Page 69 Securely tighten the four socket screws and washers that secure the two camber tube clamps to the camber tube supports. Install the rear wheels. Refer to Removing/Installing Rear Wheels on page 62. Camber Tube Support Socket Screws and Washers Camber Tube Clamp Camber Tube FIGURE 8 Repositioning the Camber Tube Clamps ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...
  • Page 70 Remove the four socket screws and washers that secure the two camber tube clamps to the camber tube supports. Rotate the camber tube so that the camber tube clamps face the opposite direction. ® Invacare Crossfire™T7A Wheelchair Part No 1167484...
  • Page 71 Camber Tube Facing Rear of Wheelchair Support Camber Tube Camber Tube Washers Clamps Socket Screws Camber Tube Clamp Camber Tube Camber Tube Facing Front of Wheelchair FIGURE 10 Reversing the Camber Tube Clamp Direction ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...

  • Page 72: Adjusting Wheelbase Width

    Otherwise, wheelchair performance Axle Bushing may be affected. Axle Nut Repeat STEPS 2-3 for the opposite axle bushing. FIGURE 11 Adjusting Wheelbase Width Install the rear wheels. Refer to Removing/Installing Rear Wheels on page 62 ® Invacare Crossfire™T7A Wheelchair Part No 1167484...

  • Page 73: Removing/Installing The Camber Tube

    MUST be rotated so that the axle bushings at the ends of camber tube are angled up (Detail “A”). Installing the camber tube in any other orientation will directly impact the angle of the rear wheel. ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...
  • Page 74 3 ° angle 0° angle Axle Camber Tube Bushing Camber Tube Socket Head 6° angle 9° angle Clamp Clamp Screw Camber Tube Socket Head Clamp Screw FIGURE 12 Adjusting Wheelbase Length, Adjusting Center of Gravity (COG) ® Invacare Crossfire™T7A Wheelchair Part No 1167484...

  • Page 75: Adjusting The Camber Tube

    Securely tighten the socket screw in the camber tube clamps (Detail “L” Square “A”). Ground/ Floor Determine the toe in/toe out of the wheelchair. Refer to Determining/Setting Toe In/Toe Out on page 76. FIGURE 13 Adjusting the Camber Tube ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...

  • Page 76: Determining/Setting Toe In/Toe Out

    -inch, correct the toe-in/toe-out condition by performing the following: Loosen both mounting socket head clamp screws (FIGURE 12). Rotate the camber tube until front and rear measurement are within -inch (FIGURE 12). Securely tighten both socket head clamp screws (FIGURE 12). ® Invacare Crossfire™T7A Wheelchair Part No 1167484...

  • Page 77: Adjusting Fork Tension

    Let casters drop to bottom of arc (wheels should swing once to one-side, then IMMEDIATELY rest in a straight downward position). If necessary, perform one of the following to adjust the fork tension: ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...
  • Page 78 If necessary, repeat STEPS 1-2 to adjust locknuts until tension is correct for both forks. DETAIL “A” DETAIL “B” DETAIL “C” - ONE STANDARD FORK SUSPENSION FORK SIDED FORK Fork Locknut Caster FIGURE 15 Adjusting Fork Tension ® Invacare Crossfire™T7A Wheelchair Part No 1167484...

  • Page 79: Removing/Installing/Repositioning The Caster Assemblies

    Using two allen wrenches, turn mounting screws in opposite directions and remove one mounting screw from fork. Remove the threaded bushing with mounting screw and two spacers securing the caster to the fork. DO NOT use excessive force. Remove the caster from the fork. ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...

  • Page 80: Installing The Caster

    Remove the button head screw that secure the caster to the fork. One Sided Fork Installing the Caster Secure caster to one sided fork with button head screw. Tighten Caster securely. FIGURE 18 Removing/Installing/Repositioning the Caster Assemblies - One Sided Fork ® Invacare Crossfire™T7A Wheelchair Part No 1167484...

  • Page 81: Removing/Installing The Fork Assembly

    Apply Loctite 242 on stem threads. Screw fork stem into head tube. Tighten securely. • One Sided Fork (Detail “C”) Apply Loctite 242 on stem threads. Screw fork stem into head tube. Tighten securely. ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...

  • Page 82: Removing/Installing The Elastomers (Suspension Forks Only)

    DO NOT use excessive force when removing/installing the threaded sleeve from/onto the fork. Damage to the threaded sleeve may occur. Removing the Elastomer  One mounting screw will not turn. Using two allen wrenches, turn mounting screws in opposite directions and remove one mounting screw from fork. ® Invacare Crossfire™T7A Wheelchair Part No 1167484...

  • Page 83: Installing The Elastomer

    Possible injury or Bottom damage could result. Caster Apply Loctite 242 to the mounting screw. Reinstall the mounting screw into the threaded bushing and tighten FIGURE 20 Removing/Installing the Elastomers (Suspension Forks securely. Only) ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...

  • Page 84: 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 85 Repeat STEPS 1-3 for the opposite anti-tipper. Measure the distance between the bottom of the anti-tipper wheels and the ground floor. If necessary, adjust the height of the anti-tippers. Refer to Adjusting Anti-tipper on page 85. ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...
  • Page 86 12 ANTI-TIPPER Top Adjustment Hole Release Buttons DETAIL “A” - ANTI-TIPPER Anti-Tipper Bar ADJUSTMENT HOLES Lock Buttons Anti-Tipper Ground/ Floor 1-1/2 to 2 inch Clearance FIGURE 1 Adjusting/Replacing Anti-tipper ® Invacare Crossfire™T7A Wheelchair Part No 1167484...
  • Page 87 Release Buttons bracket used Anti-Tipper Release Buttons with high seat to Lock Buttons floor heights Mounting Lock Hole Buttons Mounting Anti-Tipper bracket used with low Hole seat to floor heights FIGURE 2 Adjusting/Replacing Anti-tipper ® Part No 1167484 Invacare Crossfire™T7A Wheelchair...
  • Page 88 Invacare Corporation Canada One Invacare Way 570 Matheson Blvd E Elyria, Ohio USA Unit 8 44036-2125 Mississauga Ontario 800-333-6900 L4Z 4G4 Canada 800-668-5324 Part No 1167484 Rev A - 9/10 www.invacare.com...

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