Invacare CT7A User Manual

®

Invacare® Crossfire™T7A Wheelchair

EN

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.

© 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.
Natural Fit is a registered trademark of Three Rivers.
Spinergy is a registered trademark of Spinergy, Inc.
3-in-1 oil is a registered trademark of American Home Products Corporation.
WD-40 is a registered trademark of WD-40 Company.
Loctite 242 is a trademark of the Loctite Corporation.
Teflon is a registered trademark of E.I. Du Pont De Nemours and Company.
Schwalbe is a registered trademark of Ralf Bohle Gmbh & Co. KG Corporation, Germany.

Invacare® Crossfire™T7A Wheelchair 2 Part No 1167484

CONTENTS

1 GENERAL 6

Symbols .................................................................................................................................................................................................................................................... 6

Limited Warranty .................................................................................................................................................................................................................................. 7

2SAFETY 8

General Guidelines ................................................................................................................................................................................................................................ 8

3OVERVIEW 12

Label Locations.....................................................................................................................................................................................................................................12

Component Identification..................................................................................................................................................................................................................13

Typical Product Parameters ..............................................................................................................................................................................................................14

4 SAFETY/HANDLING OF WHEELCHAIRS 17

Safety/Handling of Wheelchairs........................................................................................................................................................................................................17

Stability and Balance ............................................................................................................................................................................................................................17

Coping with Everyday Obstacles......................................................................................................................................................................................................20

A Note to Wheelchair Assistants.................................................................................................................................................................................................... 20

Tipping.................................................................................................................................................................................................................................................... 21

Stairways ................................................................................................................................................................................................................................................ 22

Escalators............................................................................................................................................................................................................................................... 24

Transferring To and From Other Seats..........................................................................................................................................................................................24

5 SAFETY INSPECTION 25

Safety Inspection Checklist................................................................................................................................................................................................................ 25

Troubleshooting...................................................................................................................................................................................................................................28

Maintenance ..........................................................................................................................................................................................................................................28

Part No 1167484

3 Invacare

®

Crossfire™T7A Wheelchair

CONTENTS

6 FOOTREST 31

Adjusting/Replacing Standard Footrest........................................................................................................................................................................................... 31

Replacing/Adjusting Optional Adjustable Angle Footrest...........................................................................................................................................................32

7ARMS 34

Installing the Swingaway Padded Armrest Socket........................................................................................................................................................................34

Installing/Removing/Adjusting the Swingaway Padded Armrest................................................................................................................................................38

Removing/Installing and Adjusting T-Arms .................................................................................................................................................................................... 39

8BACK 41

Unfolding/Folding the Back ................................................................................................................................................................................................................ 41

Back Angle Adjustment ...................................................................................................................................................................................................................... 43

Adjustable Tension Back Upholstery .............................................................................................................................................................................................. 48

Removing/Installing Foldover Back Upholstery............................................................................................................................................................................. 52

Back Height Adjustment..................................................................................................................................................................................................................... 53

Removing/Installing the Back Frame................................................................................................................................................................................................55

9SEAT 56

Replacing Seat Upholstery .................................................................................................................................................................................................................56

Seat Angle Adjustment .......................................................................................................................................................................................................................57

10 WHEEL LOCKS 59

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 62

Removing/Installing Rear Wheels..................................................................................................................................................................................................... 62

Adjusting Quick-Release Axles......................................................................................................................................................................................................... 63

Invacare

®

Crossfire™T7A Wheelchair 4 Part No 1167484

CONTENTS

Replacing Quad-Release Axles.......................................................................................................................................................................................................... 64

Adjusting Quad-Release Handles ..................................................................................................................................................................................................... 64

Handrim Replacement ........................................................................................................................................................................................................................65

Repairing/Replacing Rear Wheel, Tire/Tube .................................................................................................................................................................................66

Adjusting Wheelbase Length, Adjusting Center of Gravity (COG).........................................................................................................................................67

Adjusting Wheelbase Width ............................................................................................................................................................................................................. 72

Removing/Installing the Camber Tube............................................................................................................................................................................................ 73

Adjusting the Camber Tube ..............................................................................................................................................................................................................75

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 84

Adjusting/Replacing Anti-tipper........................................................................................................................................................................................................84

Part No 1167484

5 Invacare

®

Crossfire™T7A Wheelchair

1 GENERAL

1 General

1.1 Symbols

Warnings

Signal words are used in this manual and apply to hazards or unsafe practices which could result in personal injury or property damage. See the information below for definitions of the signal words.

DANGER







Danger indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

WARNING

Warning indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION

Caution indicates a potentially hazardous situation which, if not avoided, may result in property damage or minor injury or both.

!



Invacare® Crossfire™T7A Wheelchair 6 Part No 1167484

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.

1 GENERAL

1.2 Limited Warranty

PLEASE NOTE: THE WARRANTY BELOW HAS BEEN DRAFTED TO COMPLY WITH FEDERAL LAW APPLICABLE TO PRODUCTS
MANUFACTURED AFTER JULY 4, 1975.
This warranty is extended only to the original purchaser/user of our products.
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. All component parts including, but not limited to folding back, camber tubes, caster forks are warranted against defects in materials and
workmanship for a period of one year from the date of purchase except armrests and upholstery, push handle grips, bushings, bearings, and tires/tubes. If
within such warranty period any such product shall be proven to be defective, such product shall be repaired or replaced, at Invacare's option. This warranty
does not include any labor or shipping charges incurred in replacement part installation or repair of any such product. Invacare's sole obligation and your
exclusive remedy under this warranty shall be limited to such repair and/or replacement.
For warranty service, please contact the dealer from whom you purchased your Invacare product. In the event you DO NOT receive satisfactory warranty
service, please write directly to Invacare at the address on the back page. Provide dealer’s name, address, date of purchase, indicate nature of the defect and,
if the product is serialized, indicate the serial number. DO NOT return products to our factory without our prior consent.
LIMITATIONS AND EXCLUSIONS: THE FOREGOING WARRANTY SHALL NOT APPLY TO SERIAL NUMBERED PRODUCTS IF THE SERIAL
NUMBER HAS BEEN REMOVED OR DEFACED, PRODUCTS SUBJECTED TO NEGLIGENCE, ACCIDENT, IMPROPER OPERATION,
MAINTENANCE OR STORAGE, COMMERCIAL OR INSTITUTIONAL USE, PRODUCTS MODIFIED WITHOUT INVACARE'S EXPRESS WRITTEN
CONSENT, INCLUDING, BUT NOT LIMITED TO, MODIFICATION THROUGH THE USE OF UNAUTHORIZED PARTS OR ATTACHMENTS;
PRODUCTS DAMAGED BY REASON OF REPAIRS MADE TO ANY COMPONENT WITHOUT THE SPECIFIC CONSENT OF INVACARE, OR TO A
PRODUCT DAMAGED BY CIRCUMSTANCES BEYOND INVACARE'S CONTROL, AND SUCH EVALUATION WILL BE SOLELY DETERMINED BY
INVACARE. THE WARRANTY SHALL NOT APPLY TO PROBLEMS ARISING FROM NORMAL WEAR OR FAILURE TO ADHERE TO THESE
INSTRUCTIONS.
THE FOREGOING EXPRESS WARRANTY IS EXCLUSIVE AND IN LIEU OF ANY OTHER WARRANTIES WHATSOEVER, WHETHER EXPRESS OR
IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, AND THE SOLE
REMEDY FOR VIOLATIONS OF ANY WARRANTY WHATSOEVER, SHALL BE LIMITED TO REPAIR OR REPLACEMENT OF THE DEFECTIVE
PRODUCT PURSUANT TO THE TERMS CONTAINED HEREIN. THE APPLICATION OF ANY IMPLIED WARRANTY WHATSOEVER SHALL NOT
EXTEND BEYOND THE DURATION OF THE EXPRESS WARRANTY PROVIDED HEREIN. THE MANUFACTURER SHALL NOT BE LIABLE FOR
ANY CONSEQUENTIAL OR INCIDENTAL DAMAGES WHATSOEVER.THIS WARRANTY SHALL BE EXTENDED TO COMPLY WITH
STATE/PROVINCIAL LAWS AND REQUIREMENTS.

Part No 1167484 7 Invacare® Crossfire™T7A Wheelchair

2 SAFETY

2 Safety

The safety section contains important information for the safe operation and use of this product.

2.1 General Guidelines

WARNING





DO NOT use this product or any available optional equipment without first completely reading and understanding these
instructions and any additional instructional material such as owner’s manuals, service manuals or instruction sheets
supplied with this product or optional equipment. If you are unable to understand the warnings, cautions or instructions,
contact a healthcare professional, dealer or technical personnel before attempting to use this equipment - otherwise, injury
or damage may occur.

ACCESSORIES WARNINGS

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.

!



Invacare® Crossfire™T7A Wheelchair 8 Part No 1167484

NOTICE

THE INFORMATION CONTAINED IN THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE.
Check all parts for shipping damage and test before using. In case of damage, DO NOT use. Contact Invacare/Carrier for

further instruction.

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

.



2 SAFETY

WARNING

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.

It is Invacare’s position that users of wheelchairs should be transferred into appropriate seating in vehicles for transportation and
use be made of the restraints made available by the auto industry. Invacare cannot and does not recommend any wheelchair
transportation systems.

Stability Warning

The position of the footrest, camber tube (COG - Center of Gravity), seat angle, back angle, the tautness of the back upholstery
as well as the user's condition are directly related to the wheelchairs stability. Any change to one or any combination of the six 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.



FOOTREST POSITION

CAMBER TUBE (COG)

BACK ANGLE

BACK UPHOLSTERY

USER CONDITION

SEAT ANGLE

Part No 1167484 9 Invacare® Crossfire™T7A Wheelchair

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.

FOOTREST

POSITION

CAMBER TUBE

(COG)

BACK ANGLE

BACK

UPHOLSTERY

USER

CONDITION

●

✓

✓✓✓✓

✓✓✓

●

✓✓✓

●

✓✓✓

●

✓

✓✓

●

✓✓✓✓✓

SEAT ANGLE

✓

●

2 SAFETY



WARNING

Repair and Service Information

Unless otherwise noted, all service and adjustments should be performed while the wheelchair is unoccupied.

Operating Information

To determine and establish your particular safety limits, practice bending, reaching and transferring activities in several combinations in the presence of a qualified healthcare professional before attempting active use of the wheelchair.

DO NOT attempt to reach objects if you have to move forward in the seat.
DO NOT attempt to reach objects if you have to pick them up from the floor by reaching down between your knees.
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.
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.
ALWAYS keep hands and fingers clear of moving parts to avoid injury.

Invacare® Crossfire™T7A Wheelchair 10 Part No 1167484



2 SAFETY

WARNING

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.

Engaging the wheel locks may not prevent the wheelchair from moving on all floor surfaces including those that may be wet or slick. ALWAYS exercise caution when transferring into or out of the wheelchair.

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.

Seat Positioning Straps

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 strongly recommends ordering the seat positioning strap as an additional
safeguard for the wheelchair user. The seat positioning strap is a positioning strap only. It is not designed for use as a safety device
withstanding high stress loads such as auto or aircraft safety belts. If signs of wear appear, strap MUST be replaced IMMEDIATELY.

With regards to seat/chest positioning straps - it is the obligation of the DME dealer, therapists and other healthcare professionals
to determine if a seat/chest positioning strap is required to ensure the safe operation of this equipment by the user. Serious injury
can occur in the event of a fall from a wheelchair.

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: Invacare's Top End Crossfire T7A wheelchair has a weight limitation of 250 lbs.

Part No 1167484 11 Invacare® Crossfire™T7A Wheelchair

3 OVERVIEW

Detent balls should extend beyond the diameter of the
axle bushing for a positive lock. Keep detent balls
clean.

WARNING

P/N 1026960 Rev D

WEI GHT CAPACIT Y

250 LBS . (114 kgs. )

REFERT O OWNE R’ S MANUAL

P/N 1111013

Serial Number Label Location

3 Overview

3.1 Label Locations

Invacare® Crossfire™T7A Wheelchair 12 Part No 1167484

3.2 Component Identification

Armrest

Seat

Upholstery

Back Upholstery

Rear Wheel

Rear Wheel

Axle

Wheel Lock

Wheelchair Frame

Front Caster

Handrim

3 OVERVIEW

Part No 1167484 13 Invacare® Crossfire™T7A Wheelchair

3 OVERVIEW

3.3 Typical Product Parameters



MODEL NUMBER:

FRONT FRAME:

FRONT FRAME ANGLE:

FOOTREST:

SEAT HEIGHT

FRONT:
REAR:

ARMS (OPTIONAL):

SIDE GUARDS (OPTIONAL)

FOLDING BACK:
FIXED BACK:

SEAT WIDTH:

SEAT DEPTH:

BACK STYLE:

BACK HEIGHT

All specifications are approximate.

CROSSFIRE T7A

CT7A

Tapered front end (Standard), V-Style (Optional)

70°, 75°, 80°, 85°

Tubular footrest in same material as frame (Standard),

Adjustable Angle NCO, Plastic or Carbon Fiber Cover (Optional)

16 to 21 inches in 1/2 inch increments (Fixed)

14 to 20 Inches (adjustable)

Swing-away Padded, T-arm

Removable, Removable with Fender

Fixed Aluminum, Fixed Carbon Fiber, Fold In

12 to 19 inches (Standard), 20 inches (Optional),

14 to 19 inches (Standard), 20 inches (Optional)

Lock Down, Folding (Standard)

8 to 11, 10 to 14, 12 to 16, 14 to 18, or

16 to 20 inches

Invacare® Crossfire™T7A Wheelchair 14 Part No 1167484

BACK ANGLE

FOLDING:

BACK UPHOLSTERY:

SEAT UPHOLSTERY:

AXLE POSITIONS/CENTER OF GRAVITY:

CROSSFIRE T7A

-8°, -4°, 0°, +4°, +8°

U850 (Balistic Black) - Adjustable Tension by Straps

Breathable Mesh (Black) Adjustable Tension by Straps

Foldover

Sail Cloth - Screw-On

Range of Adjustability in both positions:

3

Active Position:

Extended Position: -1

/4 to 4 inches

5

/8 to 15/8 inches

3 OVERVIEW

REAR WHEEL AXLE:

REAR WHEEL CAMBER

CAMBER TUBE:

REAR WHEELS

REAR WHEEL TYPE:

REAR WHEEL SIZE:

Sun Zero - G 30 Spoke with Primo Tires (Standard), Spinergy® Spox, knobby, solid, Schwalbe®,

Kenda High Pressure Pneumatic and Treaded Pneumatic Tires (Optional 1

Quick Release (Standard), Quad-Release or Titanium (Optional)

0°, 3°, 6°, or 9°

3

/8 pneumatic, Pneu-

matic with flat free insert)

22, 24 or 25-inch (Standard), 26-inch (Optional)

HANDRIMS:

Aluminum Anodized (Standard)

Titanium, Coated, Natural Fit® (Optional)

WHEEL LOCKS:

FRONT FORKS:

Part No 1167484 15 Invacare® Crossfire™T7A Wheelchair

Pull/Push to Lock (Standard) or Scissor lock, Hill Holders (Optional)

Non-Suspension (Standard), Suspension (Optional), One Sided

3 OVERVIEW

CASTERS

CASTER SIZE:
CASTER TYPE:

ANTI-TIPPERS:

*WEIGHT:

SHIPPING WEIGHT:

WEIGHT LIMITATION:

CROSSFIRE T7A

3, 4 or 5-inch

Semi-pneumatic (Standard), Soft Roll or Lighted (Optional)

Optional

17.8 lbs

30 lbs

250 lbs



Invacare® Crossfire™T7A Wheelchair 16 Part No 1167484

*16 x 16 w/ Spinergy wheels, Primo hi-pressure tires, screw - on seat upholstery, mesh back upholstery w/ adjustable tension & 4” semi-pneumatic casters are included in the weight.

4 SAFETY/HANDLING OF WHEELCHAIRS

4 Safety/Handling of Wheelchairs

4.1 Safety/Handling of Wheelchairs

“Safety and Handling” of the wheelchair requires the close attention of the wheelchair user as well as the assistant. This manual points out the most
common procedures and techniques involved in the safe operation and maintenance of the wheelchair. It is important to practice and master these
safe techniques until you are comfortable in maneuvering around the frequently encountered architectural barriers.

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. Techniques in this manual are a starting point for the new wheelchair user and
assistant with “safety” as the most important consideration for all.

4.2 Stability and Balance

WARNING



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 strongly recommends ordering the seat positioning strap as an
additional safeguard for the wheelchair user. The seat positioning strap is a positioning strap only. It is not designed for use
as a safety device withstanding high stress loads such as auto or aircraft safety belts. If signs of wear appear, strap MUST be
replaced IMMEDIATELY.

DO NOT attempt to lift a wheelchair by lifting on any removable (detachable) parts. Lifting by means of any removable (detachable) parts of the wheelchair may result in injury to the user or damage to the wheelchair.

ALWAYS check hand grips for looseness before using the wheelchair. If loose and/or worn, replace IMMEDIATELY.

Anti-tippers MUST be attached at all times. 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.

DO NOT climb, go up, or down ramps or traverse slopes greater than 9°.

Part No 1167484 17 Invacare® Crossfire™T7A Wheelchair

4 SAFETY/HANDLING OF WHEELCHAIRS

WARNING



To assure stability and proper operation of your wheelchair, you MUST at all times maintain proper balance. Your wheelchair has been designed to
remain upright and stable during normal daily activities as long as you 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.

DO NOT lean forward out of the wheelchair any further than stability will allow. Make sure casters are pointing in the forward position whenever
you lean forward. This can be achieved by advancing the wheelchair and then reversing it in a straight line.

Invacare strongly recommends proceeding down ramps or slopes slowly to avoid hard braking or sudden stops.

Be aware that carrying heavy objects on your lap while occupying the wheelchair may adversely affect the stability of the wheelchair, resulting in serious bodily injury to the user, damage to the wheelchair and surrounding property.

This wheelchair has been designed to accommodate one individual. If more than one individual occupies the wheelchair this
may adversely affect the stability of the wheelchair, resulting in serious bodily injury to the user and passenger and damage
the wheelchair and surrounding property.

WARNING



Many activities require the wheelchair owner to reach, bend and transfer in and out of the wheelchair. These movements will cause a change to the normal balance, the center of gravity, and the weight distribution of the wheelchair.

To determine and establish your particular safety limits, practice bending, reaching and transferring activities in several combinations in the presence of a qualified health-care professional before attempting active use of wheelchair.

Proper positioning is essential for your safety. When reaching, leaning, bending forward, it is important to use the front casters as a tool to maintain stability and balance.

DO NOT attempt to reach objects if you have to move forward in the seat or pick them up from the floor by reaching down between your knees.

The position of the footrest, camber tube, back angle, the tautness of the back upholstery as well as the user's condition are
directly related to the wheelchair's stability. 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 18 Part No 1167484

4 SAFETY/HANDLING OF WHEELCHAIRS

Lengthening the

Wheelbase

Shortening the

Wheelbase

GRAVITY

UNOCCUPIED OCCUPIED

CENTER OF

• Lengthening the wheelbase will increase the stability and maintain standard maneuverability of wheelchair.

• Shortening the wheelbase will decrease the stability, increase the maneuverability and distribute additional weight onto the rear wheels.

FIGURE1 Stability and Balance

Reaching, Leaning and Bending - Forward

WARNING



DO NOT attempt to reach objects if you have to move forward in the seat or pick them up from the floor by reaching down between your knees.

Position the front casters so that they are extended as far forward as possible and engage wheel locks.

Reaching, Leaning - Backwards

WARNING



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 19 Invacare® Crossfire™T7A Wheelchair

DO NOT lean over the top of the back upholstery. This will change your center of gravity and may cause you to tip over.

4 SAFETY/HANDLING OF WHEELCHAIRS

Reaching, Leaning,

and Bending -

Forward

Reaching, Leaning,

and Bending -

Backwards

FIGURE2 Stability and Balance - Reaching, Leaning, and Bending - Forward/Backward

4.3 Coping with Everyday Obstacles

Coping with the irritation of everyday obstacles can be alleviated somewhat by learning how to manage your wheelchair. Keep in mind your center of gravity to maintain stability and balance.

4.4 A Note to Wheelchair Assistants

When assistance to the wheelchair user is required, remember to use good body mechanics. Keep your back straight and bend your knees whenever tilting the wheelchair or traversing curbs, or other impediments.

WARNING



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.

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.

Invacare® Crossfire™T7A Wheelchair 20 Part No 1167484

4 SAFETY/HANDLING OF WHEELCHAIRS

4.5 Tipping

WARNING



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.

Tipping - Curbs

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.

WARNING



After mastering the techniques of tipping the wheelchair, use the following method to tackle curbs, short stairs, etc.
Turn the anti-tippers, if equipped, so the wheels are facing UP. Unless the first assistant has exceptional upper body strength, it is recommended that two

assistants perform this operation. The second assistant should be positioned at the front of the wheelchair lifting upward on a non-removable
(non-detachable) part of the wheelchair frame when lifting the wheelchair and stabilizing the wheelchair when the wheelchair is being lowered to the ground.

The first assistant should stand on the sidewalk and turn the wheelchair so that the rear wheels are against the curb. The wheelchair should be tilted
back to the balance point and, in one continuous upward movement, the rear wheels should be pulled up and over the curb. DO NOT return the
front casters to the ground until the wheelchair has been pulled backward far enough for the front casters to clear the edge of the curb.

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.

Part No 1167484 21 Invacare® Crossfire™T7A Wheelchair

4 SAFETY/HANDLING OF WHEELCHAIRS

WARNING



Roll the wheelchair backward and slowly lower the wheelchair in one
continuous movement. DO NOT let the wheelchair drop the last few
inches to the ground. This could result in injury to the occupant. Turn
the anti-tippers so the wheels are facing down.

4.6 Stairways

When lowering the front casters of the wheelchair, Do not let the wheelchair drop the last few inches to the ground. This could result in injury to the occupant and/or damage to the wheelchair.

FIGURE3 Tipping - Curbs

WARNING



Follow this procedure for moving the wheelchair between floors when an elevator is not available:

Moving Up Stairs

1. If necessary, rotate the anti-tippers so the wheels are facing up.

2. One assistant (positioned behind the wheelchair), securely grasps a non-removable (non-detachable) part of the wheelchair for leverage and tilts the wheelchair back to the balance point.

3. After the wheelchair has been tilted back to the balance point, the assistant behind the wheelchair backs the wheelchair up against the first step.

4. The second assistant (positioned in the front of the wheelchair), with a firm hold on a non-detachable part of the framework, lifts the wheelchair
up and on to the next stair above and steadies the wheelchair as the assistant behind the wheelchair places one foot on the next stair above and
repeats process.

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.

Invacare® Crossfire™T7A Wheelchair 22 Part No 1167484

4 SAFETY/HANDLING OF WHEELCHAIRS

5. The wheelchair should not be lowered until the last stair has been negotiated and the wheelchair has been rolled away from the stairway.

6. If necessary, rotate the anti-tippers so the wheels are facing down.

Moving Down Stairs

1. If necessary, rotate the anti-tippers so the wheels are facing up.

2. One assistant (positioned behind the wheelchair), securely grasps a non-removable (non-detachable) part of the wheelchair for leverage and tilts the wheelchair back to the balance point.

3. After the wheelchair has been tilted back to the balance point, the assistant behind the wheelchair rolls the wheelchair up to the edge of the first step.

4. The second assistant (positioned in the front of the wheelchair), with a firm hold on a non-detachable part of the framework, lowers the
wheelchair down and on to the next stair below and steadies the wheelchair as the assistant in the rear places one foot on the next stair below
and repeats process.

5. The wheelchair should not be lowered until the last stair has been negotiated and the wheelchair has been rolled away from the stairway.

6. If necessary, rotate the anti-tippers so the wheels are facing down.

FIGURE4 Stairways

Part No 1167484 23 Invacare® Crossfire™T7A Wheelchair

4 SAFETY/HANDLING OF WHEELCHAIRS

4.7 Escalators

WARNING



4.8 Transferring To and From Other Seats

DO NOT use an escalator to move a wheelchair between floors. Serious bodily injury may occur.

WARNING



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 help
prevent the wheels from moving.

When transferring, position yourself as far back as possible in the seat. This will prevent damaged upholstery and the possibility of the wheelchair tipping forward.



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.

Invacare® Crossfire™T7A Wheelchair 24 Part No 1167484

This activity may be performed independently provided you have adequate mobility and upper body strength.

FIGURE5 Transferring To and From Other Seats

5 Safety Inspection

5 SAFETY INSPECTION



5.1 Safety Inspection Checklist

Every six months, take your wheelchair to a qualified technician for a thorough inspection and servicing. Regular cleaning
will reveal loose or worn parts and enhance the smooth operation of your wheelchair. To operate properly and safely, your
wheelchair MUST be cared for just like any other vehicle. Routine maintenance will extend the life and efficiency of your
wheelchair. Clean upholstery with mild soap and water or spray disinfectant using a sponge. DO NOT use bleach or wash
in a washing machine.

CAUTION



Initial adjustments should be made to suit your personal body structure and preference. Thereafter follow these maintenance procedures:

Inspect Initially

❑ Ensure wheelchair rolls straight (no excessive drag/pull to one side).

❑ Ensure wheel locks DO NOT interfere with tires when rolling.

❑ Ensure pivot points are free of wear and looseness.

❑ Ensure wheel locks are easy to engage and prevent the wheels from moving.

❑ Ensure that the casters are free of debris.

❑ Inspect seat and back upholstery for rips or sagging.

❑ 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.

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

Part No 1167484 25 Invacare® Crossfire™T7A Wheelchair

5 SAFETY INSPECTION

❑ 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.

Inspect/Adjust Weekly

❑ Ensure wheel locks are easy to engage and prevent the wheels from moving.

❑ Ensure that the casters are free of debris.

❑ Ensure hand grips (if equipped) are not loose.

❑ Ensure quick release axles and camber inserts are clean.

❑ Ensure quick/quad release axles lock properly.

❑ 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 26 Part No 1167484

5 SAFETY INSPECTION

❑ Inspect tires for flat spots and wear.

❑ If pneumatic tires check for proper inflation.

Inspect/Adjust Monthly

❑ Ensure wheel locks DO NOT interfere with tires when rolling.

❑ Ensure that the casters are free of debris.

❑ 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.

Part No 1167484 27 Invacare® Crossfire™T7A Wheelchair

5 SAFETY INSPECTION

5.2 Troubleshooting

RIGHT

CHAIR VEERS

XXXX

XX X

5.3 Maintenance

Maintenance Safety Precautions

LEFT

CHAIR VEERS

SLUGGISH TURN

XXXX

WARNING



After ANY adjustments, repair or service and before use, make sure all attaching hardware is tightened securely - otherwise injury or damage may occur.

Replace any labels that are missing, worn, or torn. Refer to Label Locations
locations

CAUTION

DO NOT overtighten hardware attaching to the frame. This could cause damage to the frame tubing.

OR

PERFORMANCE

CASTER FLUTTERS

RATTLES

SQUEAKS AND

XX

CHAIR

LOOSENESS IN

Check tires for correct and equal pressure.

Check for loose stem nuts.

Check spokes and nipples.

Check that both casters contact the ground at the
same time.

SOLUTIONS

on page 12 for a listing of the labels and their

Invacare® Crossfire™T7A Wheelchair 28 Part No 1167484

5 SAFETY INSPECTION

Suggested Maintenance Procedures

1. Before using your wheelchair, make sure all nuts and bolts are tight.

2. Check all parts for damage or wear and replace.

3. Check all parts for proper adjustment.

4. Keep quick/quad-release axles free of dirt and lint to ensure positive locking and proper operation. Refer to Adjusting Quick-Release Axles
page 63 or Adjusting Quad-Release Handles

on page 64.

WARNING



5. Clean quick-release axles and camber inserts once a week with a Teflon® lubricant.

DO NOT use WD-40®, 3-in-1 oil®, or other penetrating lubricants on quick-release axles or camber inserts. Otherwise, binding and/or damage to the wheelchair may occur.

WARNING



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.

CAUTION

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
Replacing/Repairing Caster Tire/Tube

on page 30.

on page 30 and

on

Part No 1167484 29 Invacare® Crossfire™T7A Wheelchair

5 SAFETY INSPECTION

6. Periodically adjust wheel locks in correlation to tire wear. Refer to Replacing/Adjusting the Wheel Locks



7. 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.

8. Periodically check handrims to ensure they are secured to the rear wheels. Refer to Handrim Replacement

9. 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.

Replacing/Repairing Rear Wheel Tire/Tube

Tire wear is excessive if:

• Pneumatic Tires - there is missing tread or the tires are bald.

• Urethane Tires - there are cuts, surface defects or the tires are loose on the rims.

• Rubber Tires - 30% or more of the tire has worn away.

Invacare recommends that rear wheel tire/tube and caster tire/tube be replaced every five years.

on page 59.

on page 65.

WARNING



Replacing/Repairing Caster Tire/Tube

Replacement of solid urethane tires is not recommended. If the solid urethane tire needs repaired, Invacare recommends replacing the complete wheel assembly.

Replacement of rear wheel tube must be performed by a qualified technician.

WARNING



Replacement of solid urethane or semi-pneumatic tires is not recommended. If the solid urethane or semi-pneumatic tires need replaced, Invacare recommends replacing complete caster assembly.

For pneumatic tires, replacement of the tube must be performed by a qualified technician.

Invacare® Crossfire™T7A Wheelchair 30 Part No 1167484

6 Footrest

Footrest

Clamps (Allen Screws)

Wheelchair

Frame

WARNING



6.1 Adjusting/Replacing Standard Footrest

1. Loosen the allen screw of the two clamps that secure the footrest to the wheelchair frame.

Replacing the Footrest

1. Remove existing footrest.

2. Install new footrest.

After any adjustments, repair or service and before use, make sure all attaching hardware is tightened securely - otherwise injury or damage may occur.

ALWAYS perform this procedure in the presence of an assistant. The position of the footrest, camber tube, seat angle,
back angle, the tautness of the back upholstery as well as the user's condition are directly related to the wheelchairs
stability. 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.

Check ALL allen screws that secure the footrest/raised footrest system to the wheelchair frame to make sure they are securely tightened BEFORE using the wheelchair. ESPECIALLY if engaging in ANY contact sport.

The footrest assembly MUST be at least 1¾-inches above the ground/floor to avoid hitting protruding objects when using this wheelchair.

6 FOOTREST

FIGURE1 Adjusting/Replacing Standard Footrest

Part No 1167484 31 Invacare® Crossfire™T7A Wheelchair

6 FOOTREST

WARNING



Adjusting the Footrest

1. Position new/existing footrest to desired height.

2. Tighten the allen screw of the two clamps that secure the footrest to the wheelchair frame.

6.2 Replacing/Adjusting Optional Adjustable Angle Footrest

Replacing the Footrest

1. Loosen, but DO NOT remove the allen screw of the two clamps that secure the footrest to the wheelchair frame.

2. Slide the existing footrest tubes out of the wheelchair frame and install new footrest by reversing this step.

3. Position the new footrest to a determined height.

4. Tighten the allen screw of the two clamps that secure the footrest to the wheelchair frame.

5. Adjust the footplate to the desired position. Refer to Adjusting Footplate Angle

Adjusting Footplate Angle

1. Loosen, but DO NOT remove the two mounting screws and locknuts (not shown) that secure the footplate to the two footrest tubes.

2. Position the footplate to the necessary angle to accommodate the user.

3. Retighten the two mounting screws and locknuts.

The standard footrest has an open hoop. A footplate cover is recommended for wheelchair users that have leg spasticity or
whose feet have a possibility of falling through the footrest hoop. A calf strap is provided with each wheelchair to prevent
the feet from slipping backwards off of the footrest. Be sure the calf strap is secure when using the wheelchair.

on page 32 and/or Adjusting Footplate Depth on page 33.



Invacare® Crossfire™T7A Wheelchair 32 Part No 1167484

The locknuts should lie in the channel of the footplate clamp.

Adjusting Footplate Depth

Footrest

Tube

Mounting

Positions

Footplate

Locknut

(Not Shown)

Angle

Depth

Height

Clamp

(Allen

Screw)

Mounting

Screws

Adjustments

Wheelchair

Frame

Clamp

(Allen Screw)

1. Remove the two mounting screws and locknuts (not shown) that secure footplate to the footrest tubes.

6 FOOTREST



2. Move the footplate to one of two mounting positions to accommodate the user.

3. Using the two mounting screws and locknuts, secure the footplate to the footrest tubes.



Part No 1167484 33 Invacare® Crossfire™T7A Wheelchair

Observe the angle of footplate for reinstallation.

The locknuts should lie in the channel of the footplate half clamp.

FIGURE2 Replacing/Adjusting Optional Adjustable Angle Footrest

7 ARMS

Split Ring

Back Release Cord

Plunger Pin

Back Stop Insert

7 Arms

WARNING



7.1 Installing the Swingaway Padded Armrest Socket

1. Remove the back. Refer to Removing/Installing the Back Frame on page 55.

2. Remove the split ring of the back release cord from the plunger pin in the back stop insert.

3. Remove the plunger pin from the back stop insert.

4. Perform STEPS 2-3 on remaining back stop insert.

After any adjustments, repair or service and before use, make sure all attaching hardware is tightened securely - otherwise injury or damage may occur.

Do not attempt to lift or tilt a wheelchair by using 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.

FIGURE1 Disconnect Back Release Cord

Invacare® Crossfire™T7A Wheelchair 34 Part No 1167484

7 ARMS

Rear Seat Upholstery

Mounting Screw

Short

Mounting

Screw

Right Side Armrest Socket

Left Side Armrest Socket

Mounting

Screws

Washers

Back Stop Insert

Weldment

Armrest

Socket

Washers

Locknut

Armrest

Socket

Washers

Locknut

Back Stop Insert Weldment

Washers

Mounting Screws

5. Remove the rear seat upholstery mounting screw and short
mounting screw (FIGURE2).

6. Remove the back stop insert from seat rail (FIGURE2).

7. Perform STEP 5-6 on remaining back stop insert.

8. Secure the back stop insert weldment to the armrest socket, in the
orientation shown, with two mounting screws, four washers, and
two locknuts. Tighten securely (FIGURE3).

9. Perform STEP 8 for remaining back stop insert weldment/armrest socket.

FIGURE2 Remove Back Stop Insert

Part No 1167484 35 Invacare® Crossfire™T7A Wheelchair

FIGURE3 Assemble Back Stop Insert and Arm Socket

7 ARMS

Back Stop Insert/Arm

Socket Assembly

Short Mounting

Screw

Rear Seat Upholstery

Mounting Screw

10. Install the back stop insert/arm socket assembly into the seat rail.

11. Install short mounting screw through seat rail and into back stop insert/arm socket assembly. DO NOT tighten.

12. Install rear seat upholstery mounting screw. DO NOT tighten.

FIGURE4 Install Back Stop Insert/Arm Socket Assembly

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 36 Part No 1167484

FIGURE5 Connect Back Release Cord

Split Ring

Back Release Cord

Plunger Pin

Back Stop Insert

16. Install the back. Refer to Removing/Installing the Back Frame on page 55.

7 ARMS

Part No 1167484 37 Invacare® Crossfire™T7A Wheelchair

7 ARMS

Swingaway Padded

Armrest

Arm

Socket

Mounting Bolt

Locknut

Three Mounting

Positions

7.2 Installing/Removing/Adjusting the Swingaway Padded Armrest

Installing

1. Secure mounting bolt and locknut in desired mounting hole. Tighten securely.

2. Insert swing away padded armrest into armrest socket so that notch fits around mounting bolt.

Removing

1. Remove swing away padded armrest from armrest socket.

Adjusting Height

1. Remove the swing away padded armrest from the arm socket.

2. Remove the mounting bolt and locknut mounted in the arm socket.

3. Reposition mounting bolt to one of three positions in the arm socket depending on the desired height.

4. Install locknut and securely tighten.

5. Reinstall the swing away padded armrest into the arm socket.

6. Repeat STEPS 1-5 for the opposite side, if necessary.

FIGURE6 Installing/Removing/Adjusting the Swingaway Padded

Armrest

Invacare® Crossfire™T7A Wheelchair 38 Part No 1167484

7.3 Removing/Installing and Adjusting T-Arms

Locknut

T-Arm

Armrest

Height Adjustment

Screw

T-Arm Bracket

Height

Adjustment

Hole

Removing/Installing T-Arms

7 ARMS



1. Align the T-arm with the socket in the T-arm bracket on the wheelchair frame.

2. Slide the T-arm into the T-arm bracket until the height adjustment screw rests on the top on the T-arm bracket.

To remove the T-arm, reverse this procedure.

Adjusting T-Arm Height

1. Remove the T-arm. Refer to Removing/Installing T-Arms on page 39.

2. Remove the height adjustment screw and locknut from the height adjustment hole.

3. Reinstall the height adjustment screw and locknut in one of the three height adjustment holes on the t-arm of the armrest. Secure tightly.

4. Reinstall the T-arm. Refer to Removing/Installing T-Arms
page 39.

on

FIGURE7 Adjusting T-Arm Height

Part No 1167484 39 Invacare® Crossfire™T7A Wheelchair

7 ARMS

Mounting

Screws

T-Arm

Bracket

Locknuts

Additional

mounting hole for

T-bracket

Adjusting T-Arm Position



1. Remove the two mounting screws and locknuts that secure the T­arm bracket to the seat rail.

2. Install T-arm bracket in desired mounting position on seat rail.

3. Secure the T-arm bracket to the seat rail with two mounting screws and locknuts. Securely tighten.

T-arm can be mounted in one of two locations on the seat rail

FIGURE8 Adjusting T-Arm Position

Invacare® Crossfire™T7A Wheelchair 40 Part No 1167484

8 BACK

8 Back

WARNING



8.1 Unfolding/Folding the Back



1. To fold the back, pull up on the back release cord and push the back toward the seat of the wheelchair (Detail “A”).

2. To unfold the back, pull up on the back release cord and lift the back away from the seat until the back locks into place (Detail “B” and Detail “C”).

ALWAYS perform these procedures in the presence of an assistant. The position of the footrest, camber tube, seat angle,
back angle, the tautness of the back upholstery as well as the user's condition are directly related to the wheelchairs
stability. 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.

After ANY adjustments, repair or service and BEFORE use, make sure all attaching hardware is tightened securely ­otherwise injury or damage may occur.

WARNING

After unfolding the back, ensure that the plunger pins are fully engaged in the mounting holes of the adjustment square in
the back cane mounting brackets (Detail “A” in FIGURE2). Back MUST be locked securely in place. Otherwise, serious
injury could result.



Part No 1167484 41 Invacare® Crossfire™T7A Wheelchair

An audible “click” will be heard when the plunger pins fully engage into the adjustment square (Detail “C”) and the split ring will be flush up against the back stop insert.

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.

8 BACK

Back

Release

Cord

Back

Back

Back

Release

Cord

Seat

Seat

DETAIL “A” - FOLDING THE BACK DETAIL “B” - UNFOLDING THE BACK

Back Cane

Mounting Bracket

Adjustment

Square

Locking Holes for

Plunger Pin

Back Cane (Shown in

Folded Position)

DETAIL “C”

Invacare® Crossfire™T7A Wheelchair 42 Part No 1167484

FIGURE1 Unfolding/Folding the Back

8.2 Back Angle Adjustment

8 BACK





1. Fold down the back. Refer to Unfolding/Folding the Back on page 41.

2. Loosen the jam nut on the placement screw located at the bottom of the back cane (Detail “A”).

3. Tighten the placement screw so that the screw and jam nut are snug against the bottom of the back cane (Detail “B”).

4. Remove the mounting screw that secures the adjustment square to the back angle plate (Details “A” and“C”).

5. Remove the adjustment square from the recess of the back angle plate (Detail “C”).



For this procedure, refer to FIGURE2-5.

The numbers in the recess of the back angle plate are intended to define the resulting back angle of a chair that has 2 inch
seat drop (at 17 inch depth) and that is measured relative to true vertical with the chair sitting on a level surface. The plus
(+) sign increases the back angle and the minus (-) sign decreases the back angle. The resulting back angle will vary
somewhat depending on your chair configuration. Refer to FIGURE3 on page 46 to see these settings converted into back
angle relative to the seat.

Perform this procedure on both sides of the wheelchair at the same time.

Note the hole on the adjustment square. When the hole is positioned on top of the number inside the recess, this number
represents the back angle relative to true vertical. One side of the adjustment square provides back angles of -8°, 0° and -4°.
Flip the adjustment square over to obtain back angles of 8°, 4° and 0° (FIGURE3).

WARNING



6. Position the adjustment square in the recess of the back plate with the hole located aligned with a number (FIGURE3).

7. Secure the adjustment square to the back angle plate with the mounting screw. Tighten securely.

If the adjustment square is installed into the recess of the back angle plate so that the adjustment square hole is not on top
of a number, DO NOT use this position. Otherwise, injury will occur. When the adjustment square hole is not on top of a
number, it prevents the locking pins from locking into position when the back is raised.

Part No 1167484 43 Invacare® Crossfire™T7A Wheelchair

8 BACK

8. Repeat STEPS 2-6 for remaining back cane.

WARNING



9. Unfold the back until the plunger pins lock into the mounting holes in the adjustment square.

10. Unthread the placement screw until head of screw rests on seat rail (Detail “D”).

11. Completely tighten jam nut up against bottom of back cane (Detail “D”).

After unfolding the back, ensure that the plunger pins are fully engaged in the mounting holes of the adjustment square in the back angle plates (Detail “A”). Otherwise, serious injury could result.



Invacare® Crossfire™T7A Wheelchair 44 Part No 1167484

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.

8 BACK

Back Cane

Jam Nut

Placement

Screw

DETAIL

“A”

Adjustment

Square

Mounting screw secures the adjustment square

from the other side of the plate

DETAIL

“B”

Back Cane

Jam Nut

Placement

Screw

DETAIL

“C”

Mounting

Screw

Back Angle

Plate

Adjustment

Square

Recess for

Adjustment

Square

Back Angle

Plate

DETAIL “D”

Back Cane

Seat Rail

Placement

Screw

Jam Nut



Back angle plate, mounting screw and
adjustment square are removed for clarity.

Part No 1167484 45 Invacare® Crossfire™T7A Wheelchair

FIGURE2 Back Angle Adjustment

8 BACK

Back Cane

75°

Seat Rail

Hole in adjustment

square will align with

8- when installed in

this orientation

Back Angle Plate

Adjustment Square

Seat Rail

Back Cane

79°

Back Angle Plate

Hole in adjustment

square will align with

4- when installed in

this orientation

DESIRED SEAT ANGLE ADJUSTMENT SQUARE POSITION

NUMERICAL GRAPHICAL

-8°

-4°

Invacare® Crossfire™T7A Wheelchair 46 Part No 1167484

FIGURE3 Back Angle Adjustment - Adjustment Square Position

0°

83°

Back Cane

Seat Rail

OPTION 1

OPTION 2

Back

Angle

Plate

Hole in

adjustment

square will align

with 0° when

installed in this

orientation

87°

Back Cane

Seat Rail

Back Angle Plate

Hole in adjustment

square will align with

4+ when installed in

this orientation

+4°

8 BACK

FIGURE4 Back Angle Adjustment - Adjustment Square Position

Part No 1167484 47 Invacare® Crossfire™T7A Wheelchair

8 BACK

91°

Seat Rail

Back Cane

Back Angle

Plate

Hole in adjustment

square will align with

8+ when installed in

this orientation

8.3 Adjustable Tension Back Upholstery

WARNING



The Back Upholstery Cover



ALWAYS perform these procedures in the presence of an assistant. The position of the footrest, camber tube, seat angle,
back angle, the tautness of the back upholstery as well as the user's condition are directly related to the wheelchairs
stability. 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.

The back upholstery cover is designed for three reasons:

• The first is as a modesty cover.

• The second is to keep the cushion from sliding out of the back of the wheelchair.

• 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.

+8°

FIGURE5 Back Angle Adjustment - Adjustment Square Position

Invacare® Crossfire™T7A Wheelchair 48 Part No 1167484

Adjusting the Tautness of the Back

Adjuster Straps

8 BACK



To adjust the back tension, perform the following

1. Lift back upholstery cover up and flip over toward front of wheelchair

2. Tighten or loosen the adjuster fastening straps.

Removing/Installing the Back Upholstery Cover, Adjustable Tension Back Upholstery and Lumbar Strap



The adjustable tension back upholstery consists of an upper and lower (lumbar) section.

FIGURE6 Adjustable Tension Back Upholstery

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 49 Invacare® Crossfire™T7A Wheelchair

8 BACK

Removing the Back Upholstery Cover

1. Remove the seat cushion, if applicable.

2. Pull the back upholstery cover away from the adjustable tension back upholstery separating the fastening strips of the back upholstery cover from the fastening strips of the adjustable tension back upholstery and seat (Details “A” and “B”).

3. Remove back upholstery cover from wheelchair.

Removing the Adjustable Tension Back Upholstery

1. Remove the back upholster cover. Refer to Removing the Back Upholstery Cover

2. Slide adjustable tension back upholstery off back canes (Details “C” and “D”).

Removing the Lumbar Strap

1. Remove the back upholster cover. Refer to Removing the Back Upholstery Cover

2. Fold back forward. Refer to Unfolding/Folding the Back

3. Loosen the top mounting screw but DO NOT remove (Detail “E”).

4. Remove the lower mounting screw, coved spacer, washer and locknut from each back cane (Detail “E”).

5. Slide lumbar strap off back canes (Details “D” and “E”).

Installing the Lumbar Strap

1. Install lumbar strap (Details “D” and “E”).

2. Install lower mounting screw, coved spacer, washer and locknut onto each back cane (Detail “E”).

3. Tighten the top and bottom mounting screws (Detail “E”).

4. Return back to upright position. Refer to Unfolding/Folding the Back

5. Install the back upholstery. Refer to Removing the Back Upholstery Cover

on page 41.

on page 41.

.

.

Installing the Adjustable Tension Back Upholstery

1. Install the adjustable tension back upholstery onto the back canes (Details “D”, “F”, and “A”).

Invacare® Crossfire™T7A Wheelchair 50 Part No 1167484

8 BACK

DETAIL “A”

DETAIL “B”

Back Upholstery Cover

Adjustable Tension Back

Upholstery

Fastening Strips

located underneath

Fastening Strips

located on both

sides

Fastening Strips

located on both sides

DETAIL

“C”

DETAIL

“D”

Adjustable

Tension Back

Upholstery

Back Canes

Lumbar Strap

Installing the Back Upholstery Cover

1. Install back upholstery cover onto the adjustable tension back ensuring the fastening strips on the back upholstery cover are aligned with the fastening strips of the adjustable tension back and seat (Detail “F”).

FIGURE7 Removing/Installing the Back Upholstery Cover, Adjustable Tension Back Upholstery and Lumbar Strap

Part No 1167484 51 Invacare® Crossfire™T7A Wheelchair

8 BACK

DETAIL “E”

Fastening Strips located in between the back upholstery cover and

the adjustable tension back (both sides)

Adjustable Tension

Back Upholstery

Back Upholstery Cover

Fastening Strips located in

between the back

upholstery cover and the

seat upholstery

DETAIL

“F”

Top Mounting Screw

Bottom Mounting Screw, Coved

Spacer, Washer, and Locknut

Lumbar

Strap

Back Cane

8.4 Removing/Installing Foldover Back Upholstery

FIGURE8 Removing/Installing the Back Upholstery Cover, Adjustable Tension Back Upholstery and Lumbar Strap

WARNING



Invacare® Crossfire™T7A Wheelchair 52 Part No 1167484

ALWAYS perform these procedures in the presence of an assistant. The position of the footrest, camber tube, seat angle,
back angle, the tautness of the back upholstery as well as the user's condition are directly related to the wheelchairs
stability. 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.

Removing Foldover Back Upholstery

Fastening Flap

Back Upholstery

Fold

Fastening Flap

Back Canes

Fastening Strips

Loops

Front of

Wheelchair

1. Unfasten the two fastening flaps that secure the bottom of the existing back upholstery to the back canes.

2. Unfold the top of the back upholstery.

3. Lift up on the existing back upholstery and remove from the wheelchair.

Installing Foldover Back Upholstery

1. Install the new back upholstery onto the back canes.

2. Wrap the end of a fastening flap around the back cane.

3. Insert the end of the fastening flap through the loop.

4. Wrap the fastening flap around the back cane again and press firmly to secure.

5. Fold the top of the back upholstery down over the back canes towards the front of the wheelchair.

6. Press firmly to secure the fastening strips.

8 BACK

FIGURE9 Removing/Installing Foldover Back Upholstery

8.5 Back Height Adjustment



1. Remove the back upholstery cover and adjustable tension back upholstery. Refer to Removing/Installing the Back Upholstery Cover, Adjustable Tension Back Upholstery and Lumbar Strap on page 49.

Observe the tautness of the back upholstery for reinstallation.

WARNING



2. 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 53 Invacare® Crossfire™T7A Wheelchair

Adjustment pin MUST be protruding through hole in back cane.

Ensure that both back cane inserts are at the same height BEFORE reassembling the wheelchair.

8 BACK

Back Cane

Insert

Hole Number

4
3

2

1

5

Adjustment Pin

Back Cane

HOLE* NUMBER BACK HEIGHT (IN INCHES)

8 - 11 10 - 14 12-16 14 - 18 16-20

1 8 10 12 14 16

2 9 11 13 15 17

3 1012141618

4 1113151719

5 NA14161820



3. Reinstall the back upholstery cover and adjustable tension back upholstery. Refer to Removing/Installing the Back Upholstery Cover, Adjustable Tension Back Upholstery and Lumbar Strap on page 49.

4. Check the tautness of the back. Refer to Adjusting the Tautness of the Back

Invacare® Crossfire™T7A Wheelchair 54 Part No 1167484

*Holes numbered from bottom to top for reference only. (There are no numbers on the back canes.)

on page 49.

FIGURE10 Back Height Adjustment

8.6 Removing/Installing the Back Frame



Back shown in upright position and seat upholstery not shown for clarity of hardware location.

Long

Mounting

Screw

Coved Spacer

Back Angle

Plate

Washer

Locknut

Seat Rail

Plastic

Washer

Rear Seat Upholstery

Mounting Screw (Not

Shown)

Short Mounting

Screw

Back Frame

Removing

1. Fold the back down. Refer to Unfolding/Folding the Back on page 41.

2. Loosen rear seat upholstery screw and short mounting screw but DO NOT remove.

3. Remove the two mounting screws, plastic washers, coved spacers, washers, and lock nuts that secures the back angle plates to the seat rails.

4. Remove the back assembly from the wheelchair.

Installing

1. Place back assembly on wheelchair frame in folded position. Refer
to FIGURE1 on page 42.

2. Install the long mounting screw through plastic washer, back angle plate, cover spacer and seat rail.

3. Install washer and locknut onto long mounting screw.

4. Perform STEPS 1- 3 for remaining back angle plate.

5. Tighten long mounting screw enough to secure the back to the seat rail, while allowing the back to fold properly.

6. Securely tighten the locknut on the long mounting screw while holding the long mounting screw from rotating.

7. Securely tighten the short mounting screw and rear seat upholstery mounting screw.

8. Repeat STEPS 17 - 18 for remaining back angle plate.

9. Unfold back to upright position. Refer to Unfolding/Folding the Back on page 41.

Part No 1167484 55 Invacare® Crossfire™T7A Wheelchair

FIGURE11 Removing/Installing the Back Frame

8 BACK

9 SEAT

9 Seat

WARNING



9.1 Replacing Seat Upholstery

1. Remove the seat cushion from the wheelchair.

2. Remove the mounting screws that secure the seat upholstery to the seat frame.

3. Lift up on the back upholstery cover separating the fastening strips of the back upholstery cover from the fastening strips of the seat (Detail “A”).

4. Remove the existing seat upholstery.

5. Install new seat upholstery and secure in place with mounting screws. Tighten securely.

6. Install the seat cushion onto the wheelchair.

ALWAYS perform these procedures in the presence of an assistant. The position of the footrest, camber tube, seat angle,
back angle, the tautness of the back upholstery as well as the user's condition are directly related to the wheelchairs
stability. 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.

After ANY adjustments, repair or service and BEFORE use, make sure all attaching hardware is tightened securely ­otherwise injury or damage may occur.

WHEELCHAIR DEPTH NUMBER OF SCREWS

14 to15 inches 10

16 to17 inches 12

18 inches 14

19 to 20 inches 16

Invacare® Crossfire™T7A Wheelchair 56 Part No 1167484

FIGURE1 Replacing Seat Upholstery

Seat

Upholstery

Detail “A”

Fastening Strips located in

between the back

upholstery cover and the

seat upholstery

Seat Upholstery

9.2 Seat Angle Adjustment



1. Fold the back. Refer to Unfolding/Folding the Back on page 41.

2. Flip wheelchair upside down.

3. Loosen, but DO NOT remove, the two mounting screws that secure the front of the seat frame to the side frame.

4. On the top of each crescent link, remove the locknut and washer from the mounting screw.

5. On the bottom of each crescent link, remove the locknut and washer from the mounting screw.

6. Adjust seat angle by performing one of the following:

• Moving top mounting screws to a new adjustment hole in each crescent link.

The seat angle can be changed by raising or lowering the rear of the seat frame relative to the side frame.

9 SEAT

Part No 1167484 57 Invacare® Crossfire™T7A Wheelchair

9 SEAT

Mounting

Screw

Mounting

Screw

Side Frame

Crescent

Link

Adjustment

Holes

Side

Frame

See Detail “A”

Mounting

Screw

Mounting Screw

DETAIL “A”

Seat Frame

Locknuts and

Washers

• Moving bottom mounting screws to a new adjustment hole in the crescent link.

• Moving both mounting screws to a new adjustment hole in the crescent link.



7. Once seat angle has been adjusted, install one washer and one locknut onto each mounting screw in the crescent links.

8. Securely tighten all four mounting screws and locknuts.

9. Securely tighten both mounting screws and locknuts that secure the front of the seat frame to the side frame.

10. Position wheelchair right side up.

11. Unfold back. Refer to Unfolding/Folding the Back

12. Check for stability. Refer to on page 9.

Invacare® Crossfire™T7A Wheelchair 58 Part No 1167484

Mounting screws in both crescent links MUST be adjusted to the same adjustment hole.

on page 41.

FIGURE2 Seat Angle Adjustment

10 Wheel Locks

WARNING



10.1 Replacing/Adjusting the Wheel Locks



After any adjustments, repair or service and before use, make sure all attaching hardware is tightened securely - otherwise injury or damage may occur.

WARNING

If wheel locks DO NOT hold the occupied wheelchair in place contact a qualified technician - otherwise injury or damage may occur.

10 WHEEL LOCKS



Replacing the Wheel Lock

1. Loosen the two mounting screws and remove the existing wheel lock from the wheelchair.

2. Using the two mounting screws, install the new wheel lock. Securely tighten.

Adjusting the Wheel Lock

1. Engage the wheel locks.



2. If necessary, loosen the two mounting screws that secure the wheel locks to the wheelchair frame and adjust position of the wheel lock until the 3/16-inch (1/8-inch for urethane wheels) measurement is obtained for correct wheel lock adjustment.

3. Securely tighten the two mounting screw(s).

4. 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 59 Invacare® Crossfire™T7A Wheelchair

Before adjusting or replacing wheel locks, ensure that the tires are inflated to the recommended psi on the sidewall of the tire.

Any wheel lock adjustment should embed the wheel lock shoe at least 3/16-inch into the pneumatic tire (1/8-inch for urethane wheels) when engaged.

10 WHEEL LOCKS

3/16 inch

(1/8-inch)

Tire

Wheel Lock

Shoe

Mounting Screws

Wheel

Lock

Wheel Lock

Under Mount Wheel Lock

Push-to-Lock or Pull-to-Lock Wheel Locks

3/16 inch

(1/8-inch)

Wheel Lock

Shoe

Tire

Mounting Screws

Wheel lock

Handle

Front Handle

Mounting Screw

and Locknut

Rear Handle

Mounting Screw

Mounting

Positions

5. Repeat the above procedures until the wheel locks hold the wheelchair.

FIGURE1 Replacing/Adjusting the Wheel Locks

10.2 Changing Wheel Lock Handle Position

1. Loosen, but DO NOT remove, the rear handle mounting screw.

2. Remove the front handle mounting screw and locknut.

3. Align the front handle mounting hole with one of three desired mounting positions on the wheel lock.

4. Using the front handle mounting screw and locknut, secure the handle to the wheel lock.

5. Securely tighten the front and rear handle mounting screws and locknuts.

6. Repeat STEPS 1-5 on remaining wheel lock handle.

Invacare® Crossfire™T7A Wheelchair 60 Part No 1167484

FIGURE2 Changing Wheel Lock Handle Position

10 WHEEL LOCKS

DETAIL “A”

WHEEL LOCK IN

PUSH-TO-LOCK

CONFIGURATION

Set Screw

(in Lower Stop Position)

Wheel Lock

Handle

DETAIL “B”

WHEEL LOCK IN

PULL-TO-LOCK

CONFIGURATION

Set Screw (in Upper Stop Position)

Wheel Lock

Handle

10.3 Converting Wheel Lock From Push-to-Lock to Pull-to-Lock or Pull-to-Lock to Push-to-Lock

Converting From Push-to-Lock to Pull-to-Lock

1. Remove set screw from the lower stop position (Detail “A”).



2. Push wheel lock handle down to access the upper stop position (Detail “B”).

3. Install set screw into upper stop position.

4. Pull wheel lock handle up to engage wheel lock. If wheel lock does not properly engage the wheel, refer to Adjusting the Wheel Lock

As the wheel lock handle is pushed downwards, the wheel lock will engage and then disengage the wheel.

Converting From Pull-to-Lock to Push-to-Lock

1. Remove set screw from the upper stop position (Detail “B”).



2. Pull wheel lock handle up to access the lower stop position (Detail “A”).

3. Install set screw into lower stop position.

4. Push wheel lock handle down to engage wheel lock. If wheel lock does not properly engage the wheel, refer to Adjusting the Wheel Lock
page 59.

Part No 1167484 61 Invacare® Crossfire™T7A Wheelchair

As the wheel lock handle is pulled upwards, the wheel lock will engage and then disengage the wheel.

FIGURE3 Converting Wheel Lock From Push-to-Lock to Pull-to-Lock or Pull-to-Lock to Push-to-Lock

on page 59.

on

11 WHEELS

11 Wheels

WARNING



11.1 Removing/Installing Rear Wheels



1. Perform one of the following:

• Quick-Release - Push in the tip of the quick-release axle and pull axle and wheel away from the wheelchair.

• Quad-Release - Lift up on the handle of the quad-release axle and pull axle and wheel away from the wheelchair.

2. Repeat STEP 1 for the opposite rear wheel.

3. Reinstall the rear wheels onto the wheelchair by reversing STEPS 1-2.



After any adjustments, repair or service and before use, make sure all attaching hardware is tightened securely - otherwise injury or damage may occur.

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.

WARNING

Pull on the rear wheel to make sure the detent pin and locking pins of the quick/ quad-release axle are fully released before operating wheelchair.

Keep locking pins clean.

4. If there is too much movement of the rear wheel assembly in an “in and out” motion, refer to Adjusting Quick-Release Axles
Adjusting Quad-Release Handles

Invacare® Crossfire™T7A Wheelchair 62 Part No 1167484

on page 64.

on page 63 or

11 WHEELS

Wheelchair Frame

Rear

Wheel

Locking Pins

Quick-Release

Axle

Detent Pin



Quad-Release Axle not
shown. Locking pins on the
Quad-Release Axle are the
same as Quick-Release
Axle.

Locking

Pins

Quick-Release

Axle

Detent

Pin

Locknut

Adjustable Axle Position

Camber Bar

Wheel

Hub



End of Quick Release axle is shown for reference
only. It is not visible when inserted into camber bar.

FIGURE1 Removing/Installing Rear Wheels

11.2 Adjusting Quick-Release Axles

1. Remove rear wheel and quick-release axle from the wheelchair.
Refer to Removing/Installing Rear Wheels

2. Depress detent pin in the quick-release axle and slide axle through the wheel hub.

3. Release detent pin ensuring that the locking pins are fully released.

4. Increase or decrease end play by adjusting the locknut on the end

5. Reinstall rear wheel onto the wheelchair. Refer to

Part No 1167484 63 Invacare® Crossfire™T7A Wheelchair

of the quick-release axle.

Removing/Installing Rear Wheels

on page 62.

on page 62.

FIGURE2 Adjusting Quick-Release Axles

11 WHEELS

Quick-Release

Axle

Rear Wheel Hub

Locking Collar

Allen Screw



End of Quick Release axle is shown for reference
only. It is not visible when inserted into camber bar.

11.3 Replacing Quad-Release Axles

1. Remove rear wheel and the existing quick-release axle from the
wheelchair. Refer to Removing/Installing Rear Wheels

2. Remove existing quick-release axle from rear wheel.

3. Insert new quad-release axle through rear wheel hub.

4. Slide locking collar onto quad-release axle until it is snug against rear wheel and tighten securely with allen screw.

5. Reinstall rear wheel and the quad-release axle onto the wheelchair.
Refer to Removing/Installing Rear Wheels

6. Flip the handle of the quad-release axle down to release the detent pin ensuring that the locking pins are fully released.

7. If detent pin does not fully release, proceed to Adjusting Quad-Release Handles on page 64.

8. Repeat STEPS 1-7 for the opposite rear wheel.

on page 62.

11.4 Adjusting Quad-Release Handles

In and/or Out

1. Remove rear wheel and the quad-release axle from the wheelchair. Refer to Removing/Installing Rear Wheels on page 62.

2. Loosen the locking screw.

3. Make one or both of the following adjustments:

• 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.

4. Tighten the locking screw.

5. Reinstall the rear wheel and quad-release axle onto the wheelchair. Refer to Removing/Installing Rear Wheels

on page 62.

FIGURE3 Replacing Quad-Release Axles

on page 62.

Invacare® Crossfire™T7A Wheelchair 64 Part No 1167484

11 WHEELS

Adjusting Locknut

(On Quick-Release Axle)

Length

Adjustment

Screw

Removing Play from Rear Wheels

Adjusting Quad-Release Handle In and/or Out

Locking Pins

Camber Bar

Locking

Screw

Quad Release

Handle

6. Flip the handle of the quad-release axle down to release the detent pin ensuring that the locking pins are fully released.

7. Repeat the above procedures until the quad-release axle locks correctly.

FIGURE4 Adjusting Quad-Release Handles

Removing Play from Rear Wheels

1. With the rear wheel and quad-release axle still mounted onto the wheelchair, make the following adjustment:

• Tighten the length adjusting screw until there is no in and out movement of the quad-release axle and rear wheel.

11.5 Handrim Replacement

1. Remove the rear wheel from the wheelchair. Refer to Removing/Installing Rear Wheels on page 62.

WARNING



2. Remove all air from the tube by pressing down on the pin in the center of the valve stem.

3. 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 65 Invacare® Crossfire™T7A Wheelchair

Tire MUST be fully deflated before any disassembly procedures are performed. Otherwise injury or damage may result.

11 WHEELS

Allen Screw

Locknut

Handrim

4. Remove the existing handrim.

5. Install new handrim by reversing STEPS 2-4.

WARNING



6. Inflate tire to correct psi rating on the sidewall of tire.

7. Reinstall rear wheel to the wheelchair. Refer to Removing/Installing Rear Wheels on page 62.

8. Repeat STEPS 1-7 for opposite rear wheel if necessary.

11.6 Repairing/Replacing Rear Wheel, Tire/Tube

DO NOT inflate tire until it is completely assembled. Otherwise injury or damage may result.

WARNING



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.

FIGURE5 Handrim Replacement



Invacare® Crossfire™T7A Wheelchair 66 Part No 1167484

If replacing rear wheels with a different size than what was originally on the wheelchair, the front caster height and/or diameter
MUST also be changed to keep the wheelchair frame parallel to the floor. Refer to Removing/Installing/Repositioning the Caster
Assemblies on page 79 ONLY after contacting Invacare. Anti-tipper height (if applicable) MUST also be adjusted to maintain 1-1/2
to 2-inch clearance between bottom of the anti-tipper wheels and the floor. Refer to Adjusting/Replacing Anti-tipper on page 84.

11.7 Adjusting Wheelbase Length, Adjusting Center of Gravity (COG)

Rear Wheel

3¼-inches of

Wheelbase

Length

Adjustment

Wheelbase Length

Front

Caster

WARNING



ALWAYS perform this procedure in the presence of an assistant. The position of the footrest, camber tube, seat angle,
back angle, the tautness of the back upholstery as well as the user's condition are directly related to the wheelchairs
stability. Any change to one or any combination of the six 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.

11 WHEELS



1. Refer to the chart below to determine the adjustments necessary to achieve the desired wheelbase length.



Part No 1167484 67 Invacare® Crossfire™T7A Wheelchair

Measure the distance between the center of the front caster and the center of the rear wheel to determine the new wheelbase length.

The wheelbase length can be adjusted in one or more of the following combinations:

• Repositioning the camber tube clamps.

• Repositioning the camber tube clamps socket screws.

• Reversing the camber tube clamps direction

CAUTION

Ensure one empty mounting position remains between the two socket screws, otherwise damage to the wheelchair may occur.

FIGURE6 Adjusting Wheelbase Length, Adjusting Center of

Gravity (COG)

11 WHEELS

SOCKET SCREW MOUNTING POSITIONS

CAMBER TUBE CLAMP FACING THE FRONT OF THE

WHEELCHAIR

CAMBER TUBE CLAMP FACING THE REAR OF THE

WHEELCHAIR

NOTE: Camber tube clamp shown in forward most position.

Front of

Wheelchair

NOTE: Camber tube clamp shown in rear most position.

Rear of

Wheelchair

Mounting

Positions

Socket Screws

Mounting

Positions

Socket Screws

Mounting Positions

Socket

Screws

Mounting

Positions

Socket
Screws

Mounting

Positions

Socket Screws

Mounting

Positions

Socket Screws

Invacare® Crossfire™T7A Wheelchair 68 Part No 1167484

FIGURE7 Adjusting Wheelbase Length, Adjusting Center of Gravity (COG)

11 WHEELS

Camber

Tube

Socket Screws and

Washers

Camber Tube Support

Camber

Tube Clamp

Repositioning the Camber Tube Clamps

1. Remove the rear wheels. Refer to Removing/Installing Rear Wheels on page 62.

2. Loosen, but DO NOT remove, the four socket screws and washers that secure the two camber tube clamps to the camber tube supports.

3. Slide the camber tube forward or backward to adjust the wheelbase length to the desired position.



4. Securely tighten the four socket screws and washers that secure the two camber tube clamps to the camber tube supports.

5. Install the rear wheels. Refer to Removing/Installing Rear Wheels

Ensure that both camber tube clamps are adjust to the same position in the camber tube support. This will ensure that the camber tube remains at 90° to each side frame.

on page 62.

Part No 1167484 69 Invacare® Crossfire™T7A Wheelchair

FIGURE8 Repositioning the Camber Tube Clamps

11 WHEELS

Socket Screws

Washers

Camber

Tube

Support

Camber Tube

Camber Tube Clamp

Repositioning the Camber Tube Clamp Socket Screws

1. Remove the rear wheels. Refer to Removing/Installing Rear Wheels on page 62.

2. Refer to Socket Screw Mounting Positions

3. Remove the four socket screws and washers from both camber tube clamps.

4. Align the desired mounting positions of the camber tube clamps with the opening of the camber tube supports.

in to determine which socket screw(s) MUST be moved and to which mounting positions.

CAUTION



5. Install the four socket screws and washers into the desired mounting positions of both camber tube clamps. Hand tighten.

Ensure one empty mounting position remains between the two socket screws, otherwise damage to the wheelchair may occur.



6. Slide the camber tube forward or backward to adjust the wheelbase length to the desired position. Securely tighten the four socket screws.

7. Install the rear wheels. Refer to Removing/Installing Rear Wheels on page 62.

Ensure that both camber tube clamps are adjust to the same position in the camber tube support. This will ensure that the camber tube remains at 90° to each side frame.

FIGURE9 Repositioning the Camber Tube Clamp Socket Screws

Reversing the Camber Tube Clamp Direction

1. Remove the rear wheels. Refer to Removing/Installing Rear Wheels on page 62.

2. Remove the four socket screws and washers that secure the two camber tube clamps to the camber tube supports.

3. Rotate the camber tube so that the camber tube clamps face the opposite direction.

Invacare® Crossfire™T7A Wheelchair 70 Part No 1167484

4. Align the desired mounting positions of the camber tube clamps with the opening of the camber tube supports.

Washers

Camber Tube

Support

Camber Tube

Clamps

Facing Front of Wheelchair

Facing Rear of Wheelchair

Camber Tube Direction

Camber Tube

Camber Tube Clamp

Camber Tube

Camber Tube

Socket Screws

CAUTION



5. Install the four socket screws and washers into the desired mounting positions of both camber tube clamps. Hand tighten.

Ensure one empty mounting position remains between the two socket screws, otherwise damage to the wheelchair may occur.

11 WHEELS



6. Slide the camber tube forward or backward to adjust the wheelbase length to the desired position. Securely tighten the four socket screws.

7. Install the rear wheels. Refer to Removing/Installing Rear Wheels on page 62.

Part No 1167484 71 Invacare® Crossfire™T7A Wheelchair

Ensure that both camber tube clamps are adjust to the same position in the camber tube support. This will ensure that the camber tube remains at 90° to each side frame.

FIGURE10 Reversing the Camber Tube Clamp Direction

11 WHEELS

Camber

Tube

Axle Bushing

Threads

Axle Nut

11.8 Adjusting Wheelbase Width



1. Remove the rear wheels. Refer to Removing/Installing Rear Wheels on page 62.

2. Loosen the axle nut and rotate axle busing to increase/decrease the wheelbase width.

3. Securely tighten axle nut. Torque nut to 30-35 ft.-lbs.

4. Count the number of threads showing on the axle bushing.

Perform this procedure on one side of the wheelchair at a time for ease of adjustment.

The wheelbase width can be increase/decreased by

3

/4 per side = 11/2 inch total range of adjustment.

WARNING





5. Repeat STEPS 2-3 for the opposite axle bushing.

6. Install the rear wheels. Refer to Removing/Installing Rear Wheels on page 62

ALWAYS leave 3/4 inch of axle bushing engaged
into camber tube otherwise damage and/or injury

may occur.

The number of threads showing on the axle bushing should be equal on both sides of the wheelchair. Otherwise, wheelchair performance may be affected.

FIGURE11 Adjusting Wheelbase Width

Invacare® Crossfire™T7A Wheelchair 72 Part No 1167484

11.9 Removing/Installing the Camber Tube

CAUTION



Removing the Camber Tube

1. Remove the rear wheels. Refer to Removing/Installing Rear Wheels on page 62.

2. Loosen the two socket head clamp screws securing camber tube to the two camber tube clamps.

3. Slide the camber tube through he camber tube clamps.

Installing the Camber Tube

1. Insert the camber tube into the camber tube clamps.

2. Center the camber tube in the camber tube clamps.

3. Adjust the camber tube. Refer to Adjusting the Camber Tube

Camber tube clamps - Make sure the clamp screws are securely tightened before using the wheelchair, otherwise personal injury or damage to the wheelchair may occur.

on page 75.

11 WHEELS



Part No 1167484 73 Invacare® Crossfire™T7A Wheelchair

There are four types of camber tubes: 0°, 3°,6° and 9°. If the camber tube being used is 3°,6° or 9° degrees, then 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.

11 WHEELS

Camber Tube

Clamp

Camber Tube

DETAIL “A” - CORRECT ORIENTATION FOR

EACH CAMBER TUBE

0° angle

3 ° angle

6° angle

9° angle

Camber Tube

Axle

Bushing

Camber

Tube

Clamp

Socket Head

Clamp Screw

Socket Head Clamp Screw

FIGURE12 Adjusting Wheelbase Length, Adjusting Center of Gravity (COG)

Invacare® Crossfire™T7A Wheelchair 74 Part No 1167484

11.10 Adjusting the Camber Tube

Ground/

Floor

Flat Edge of

Camber Tube

“L” Square

Socket Head Clamp Screw

Camber Tube

Clamp

DETAIL “A” - SIDE VIEW

Ensure flat edge of camber
tube is parallel with vertical

edge of “L” square

WARNING



Camber tube clamps - Make sure the clamp screws are securely tightened before using the wheelchair, otherwise injury or damage to the wheelchair may occur.

11 WHEELS



1. Loosen, but DO NOT remove, the socket head clamp screws in the camber tube clamps (Detail “A”).

2. Using an "L" square, rotate the axle tube until the flat edge of the camber tube is at a 90° angle with the ground/floor.



3. Securely tighten the socket screw in the camber tube clamps (Detail “A”).

4. Determine the toe in/toe out of the wheelchair. Refer to
Determining/Setting Toe In/Toe Out

Part No 1167484 75 Invacare® Crossfire™T7A Wheelchair

Stand behind the wheelchair to determine left or right.

Ensure camber tube is centered between clamps.

This adjustment is made with the rear wheels attached to the chair and all four wheels contacting the floor.

If camber tube is not 0° degrees, then it MUST be
rotated so that the axle bushings are angled up at
their ends (FIGURE13).

on page 76.

FIGURE13 Adjusting the Camber Tube

11 WHEELS

11.11 Determining/Setting Toe In/Toe Out



1. Inflate all pneumatic tires to recommended tire pressures (listed on the sidewall of the tire).

2. Measure the distance between the centerlines at the rear and front of the rear wheels at approximately 12 inches (for 24-inch diameter wheels)
from the ground/floor (FIGURE14).

3. Determine difference between two measurements. If difference between the two measurements is greater than
exists:

• If the back centerline measurement of the rear wheels is SMALLER than the front centerline measurement of the rear wheels, a TOE-OUT

• If the back centerline measurement of the rear wheels is LARGER than the front centerline measurement of the rear wheels, a TOE-IN

4. If the difference between the measurements is greater than

A. Loosen both mounting socket head clamp screws (FIGURE12).

B. Rotate the camber tube until front and rear measurement are within

C. Securely tighten both socket head clamp screws (FIGURE12).

For this procedure, refer to FIGURE12 on page 74 and FIGURE14.

condition exists (FIGURE14).

condition exists (FIGURE14).

1

/8-inch, correct the toe-in/toe-out condition by performing the following:

1

/8-inch (FIGURE12).

1

/8 inch, one of two conditions

Invacare® Crossfire™T7A Wheelchair 76 Part No 1167484

11 WHEELS

Front of

Wheelchair

Centerlines of Rear Wheels

Front of Wheelchair

Top View of

Wheelchair

Smaller than

Front

Larger than Front

Toe-out

Toe-in

Top View of

Wheelchair

Centerlines of Rear Wheels

Measure Here

Wheel Center Line

FIGURE14 Determining/Setting Toe In/Toe Out

11.12 Adjusting Fork Tension

1. To properly tighten forks and guard against flutter, perform the following check on both forks:

A. Tip back the wheelchair to floor.
B. Pivot both forks and casters to top of their arc simultaneously.
C. Let casters drop to bottom of arc (wheels should swing once to one-side, then IMMEDIATELY rest in a straight downward position).

2. If necessary, perform one of the following to adjust the fork tension:

Part No 1167484 77 Invacare® Crossfire™T7A Wheelchair

11 WHEELS

Fork

Locknut

Caster

DETAIL “B”

SUSPENSION FORK

DETAIL “A”

STANDARD FORK

DETAIL “C” - ONE

SIDED FORK

• Standard Forks - Adjust locknut according to freedom of caster swing (Detail “A”).

a. Tighten locknut to reduce caster swing.

b. Loosen the locknut to increase caster swing.

• Suspension Fork (Detail “B”) -

a. Refer to Removing the Elastomer

b. No tension adjustment can be performed on this fork.

c. Refer to Installing the Elastomer

• One Sided Fork (Detail “D”)

a. No tension adjustment can be performed on this fork.

3. Test wheelchair for maneuverability.

4. If necessary, repeat STEPS 1-2 to adjust locknuts until tension is correct for both forks.

on page 82 to remove the elastomer and suspension fork bottom to access the locknut.

on page 83 to secure the suspension fork top to the elastomer and suspension fork bottom.

Invacare® Crossfire™T7A Wheelchair 78 Part No 1167484

FIGURE15 Adjusting Fork Tension

11.13 Removing/Installing/Repositioning the Caster Assemblies

Fork

Mounting Bolt

Axle Spacer

Locknut

Caster

Axle Spacer

11 WHEELS



If replacing a front caster note the mounting position of the existing front caster for installation of the new front caster.

Both front casters MUST be the same size and adjusted to the same height.

Standard Forks

Removing Front Caster

1. Remove the mounting bolt, axle spacers and locknut that secure the front caster to the fork.

2. Remove the caster from the fork.

Installing Front Caster

1. Using the mounting bolt, axle spacers and locknut, secure the caster to the desired caster mounting position.

Suspension Forks

Removing the Caster



1. Using two allen wrenches, turn mounting screws in opposite directions and remove one mounting screw from fork.

2. Remove the threaded bushing with mounting screw and two spacers securing the caster to the fork. DO NOT use excessive force.

3. Remove the caster from the fork.

One mounting screw will not turn.

FIGURE16 Removing/Installing/Repositioning the Caster

Assemblies - Standard Forks

Part No 1167484 79 Invacare® Crossfire™T7A Wheelchair

11 WHEELS

Fork

Mounting

Screw

Axle

Spacer

Threaded Bushing

Caster

Mounting

Screw

Axle

Spacer

Button Screw

Caster

One Sided Fork

Installing the Caster

1. Align the caster with the desired mounting holes in the fork.

2. Insert the threaded bushing with mounting screw, through the two axle spacers and caster. DO NOT use excessive force.

WARNING



3. Apply Loctite 242 to the mounting screw.

4. Reinstall the mounting screw into the threaded bushing and tighten securely.

One Sided Fork

Removing the Caster

1. Remove the button head screw that secure the caster to the fork.

Installing the Caster

1. Secure caster to one sided fork with button head screw. Tighten securely.

Use Loctite™242 when reinstalling the mounting screw into the threaded bushing. Otherwise the fork can become disassembled. Possible injury or damage could result.

FIGURE17 Removing/Installing/Repositioning the Caster

Assemblies - Suspension Forks

Invacare® Crossfire™T7A Wheelchair 80 Part No 1167484

FIGURE18 Removing/Installing/Repositioning the Caster

Assemblies - One Sided Fork

11.14 Removing/Installing the Fork Assembly

11 WHEELS



Removing Fork Assembly

1. Remove the front caster from the fork. Refer to Removing Front Caster on page 79.

2. Perform one of the following:

• Standard Forks - Remove locknut securing the fork from the fork stem (Detail “A”).

• Suspension Fork (Detail “B”) -

• One Sided Fork (Detail “C”) -

Installing Fork Assembly

If replacing a fork, note the mounting position of the existing front caster for installation of the new fork.

a. Unscrew fork stem from head tube.

a. Unscrew fork stem from head tube.

WARNING



1. Perform one of the following:

• Standard Forks - Using a locknut, secure the fork to the fork stem (Detail “A”).

• Suspension Fork (Detail “B”) -

• One Sided Fork (Detail “C”)

Use Loctite™242 on threads fork stem when reinstalling the suspension fork or one sided fork into the head tube. Otherwise, the fork may become loose and disengage from the headtube. Possible injury or damage could result.

a. Apply Loctite 242 on stem threads.

b. Screw fork stem into head tube. Tighten securely.

a. Apply Loctite 242 on stem threads.

b. Screw fork stem into head tube. Tighten securely.

Part No 1167484 81 Invacare® Crossfire™T7A Wheelchair

11 WHEELS

Fork Stem

Locknut

Fork

DETAIL “B” - SUSPENSION FORK

DETAIL “A” - STANDARD FORK

DETAIL “C” - ONE SIDED FORK

Head Tube

Head Tube

Fork Stem

Fork Stem

2. Install the front caster. Refer to Installing Front Caster

FIGURE19 Removing/Installing the Fork Assembly

on page 79.

11.15 Removing/Installing the Elastomers (Suspension Forks Only)

CAUTION



Removing the Elastomer



1. Using two allen wrenches, turn mounting screws in opposite directions and remove one mounting screw from fork.

Invacare® Crossfire™T7A Wheelchair 82 Part No 1167484

DO NOT use excessive force when removing/installing the threaded sleeve from/onto the fork. Damage to the threaded sleeve may occur.

One mounting screw will not turn.

11 WHEELS

Suspension Fork Top

Locknut

Suspension Fork

Bottom

Elastomer

Threaded Bushing

Mounting

Screw

Caster

Mounting

Screw

2. Remove the threaded bushing and mounting screw securing the suspension fork top to the elastomer and the suspension fork bottom. DO NOT use excessive force.

3. If replacing the elastomer, discard the existing elastomer.

Installing the Elastomer



1. Position the new elastomer between the suspension fork top and suspension fork bottom.

2. Align the mounting holes in the suspension fork top and suspension fork bottom.

3. Using the threaded bushing and mounting screw, secure the suspension fork top and suspension fork bottom. DO NOT use excessive force.

Make sure the elastomer sits in the two recessed areas on the fork.

WARNING



4. Apply Loctite 242 to the mounting screw.

5. Reinstall the mounting screw into the threaded bushing and tighten securely.

Part No 1167484 83 Invacare® Crossfire™T7A Wheelchair

Use Loctite 242 when reinstalling the mounting screw into the threaded bushing. Otherwise the fork can become disassembled. Possible injury or damage could result.

FIGURE20 Removing/Installing the Elastomers (Suspension Forks

Only)

12 ANTI-TIPPER

12 Anti-Tipper

WARNING



12.1 Adjusting/Replacing Anti-tipper

After ANY adjustments, repair or service and BEFORE use, make sure all attaching hardware is tightened securely ­otherwise injury or damage may occur.







Invacare® Crossfire™T7A Wheelchair 84 Part No 1167484

For this procedure, refer to FIGURE1 on page 86 and FIGURE2 on page 87.

WARNING

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.

Anti-tippers MUST be fully engaged. Ensure the lock buttons of the anti-tippers fully protrudes out of the mounting hole in the anti-tipper bracket.

Ensure both anti-tippers are adjusted to the same height.

To ensure the correct model anti-tipper is used refer to FIGURE1. Measurements for anti-tippers are approximate and are
taken using the top adjustment hole on the anti-tipper (Detail “A”).

12 ANTI-TIPPER

Adjusting Anti-tipper

WARNING



1. Press in the lock button that secures the anti-tipper wheel assembly to the anti-tipper bar.

2. Adjust the height of the anti-tipper wheels to between 1-1/2 and 2-inches of the ground/floor.

3. Repeat STEPS 1-2 for the opposite anti-tipper.

Replacing Anti-tipper

When anti-tippers are used, anti-tippers MUST be adjusted to maintain a 1-1/2 to 2-inch 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. Failure to maintain proper spacing may result in the chair tipping over backward causing serious
injury or property damage.

WARNING



1. Press in the release button that secures the existing anti-tipper to the anti-tipper bracket and remove the anti-tipper from the anti-tipper bracket.

2. Insert the new anti-tipper into the anti-tipper bracket until lock buttons protrude out of mounting hole.

3. Press in the lock button on the anti-tipper bar and install the anti-tipper wheels onto the new anti-tipper bar.

4. Repeat STEPS 1-3 for the opposite anti-tipper.

5. Measure the distance between the bottom of the anti-tipper wheels and the ground floor.

6. If necessary, adjust the height of the anti-tippers. Refer to Adjusting Anti-tipper

When anti-tippers are used, anti-tippers MUST be adjusted to maintain a 1-1/2 to 2-inch 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. Failure to maintain proper spacing may result in the chair tipping over backward causing serious

injury or property damage

.

on page 85.

Part No 1167484 85 Invacare® Crossfire™T7A Wheelchair

12 ANTI-TIPPER

DETAIL “A” ­ANTI-TIPPER

ADJUSTMENT HOLES

Top Adjustment Hole

Anti-Tipper Bar

Lock Buttons

Ground/

Floor

1-1/2 to 2 inch

Clearance

Anti-Tipper

Release Buttons

FIGURE1 Adjusting/Replacing Anti-tipper

Invacare® Crossfire™T7A Wheelchair 86 Part No 1167484

12 ANTI-TIPPER

Mounting

Hole

Release Buttons

ANTI-TIPPERS USED WITH HIGH

SEAT TO FLOOR HEIGHTS

211/

8

Anti-Tipper

Anti-Tipper

bracket used

with high seat to

floor heights

Lock

Buttons

Anti-Tipper bracket used with low

seat to floor heights

Mounting

Hole

Release Buttons

Anti-Tipper

Lock Buttons

161/

16

ANTI-TIPPERS USED WITH LOW

SEAT TO FLOOR HEIGHTS

Part No 1167484 87 Invacare® Crossfire™T7A Wheelchair

FIGURE2 Adjusting/Replacing Anti-tipper

Invacare Corporation

USA

One Invacare Way
Elyria, Ohio USA
44036-2125
800-333-6900

Part No 1167484 Rev A - 9/10 www.invacare.com

Canada

570 Matheson Blvd E
Unit 8
Mississauga Ontario
L4Z 4G4 Canada
800-668-5324