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.
FIGURE1 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
FIGURE2 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.
FIGURE3 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.
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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.
FIGURE4 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.
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This activity may be performed independently provided you have adequate mobility and upper body strength.
FIGURE5 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.
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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
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