Invacare CRFTI Owners Manual - Page 34

SECTION 6-BACK Adjustable Tension Back Upholstery ƽ WARNING The position of the footrest, seat angle, back angle, seating system/upholstery, caster size and position, rear wheel size and position, use of anti-tippers, as well as the user condition directly relate to the stability of the wheelchair. Any change to one or any combination of the ten may cause the wheelchair to decrease in stability. EXTREME care MUST be taken when changing the stability of the wheelchair. Refer to the chart in General Guidelines on page 10 of this manual. NOTE: For this procedure, refer to FIGURE 6.4. The Adjustable Tension Straps The straps can be adjusted at various levels of tension to accommodate individual end‐users. The bottom two straps can be adjusted tightly to support and/or assist the extensor muscles. The Back Upholstery Cover NOTE: 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. Fastening Strap Back Upholstery Cover Fastening Straps Adjuster Strap Anchor Loop Back Cane Back Upholstery Anchor Loop Section Mounting Screw Upper Grommet Hole Back Upholstery Adjuster Strap Section FIGURE 6.4 Back Height Adjustment (Adjustable Backs Only) Replacing Adjustable Tension Back Upholstery 1. Remove the back height adjustment screws that secure the back canes to the back uprights. 2. Slide the back canes out of the back uprights. 3. Remove the two screws and washers that secure the existing back upholstery to the back canes. 4. Slide the existing back upholstery down and off the back canes. Crossfire™Series Wheelchairs 34 Part No 1134872