Replacing Seat Frame - Invacare A4 Owner's Manual

SECTION 5—FRAME

Replacing Seat Frame

NOTE: For this procedure, refer to FIGURE 5.4.
1. Remove the rear wheels from the wheelchair. Refer to Removing/Installing Rear Wheels on page 37.
2. Remove the seat upholstery from the wheelchair. Refer to Seat Upholstery Replacement on page 22.
3. Remove the wheel locks from the wheelchair. Refer to Wheel Lock Adjustment/Replacement on page 40.
4. Make note of the installation position of the rear seat frame for proper reinstallation.
5. Remove the locknut, nylon washer and screw securing each side of the rear seat frame to the wheelchair frame (Detail "A").
6. Remove two allen screws and washers that secure front seat frame to the wheelchair front frame (DETAIL "B").
7. Remove the locknut, two washers, stop and bolt from the rear of the seat frame (Detail "C").
8. Remove the locknut, washer, coved spacer, nylon spacer, washer and bolt securing the front of the back angle bracket to the
seat frame (Detail "C").
9. Repeat STEPS 7‐8 for the opposite side of the wheelchair.
10. Remove the back canes with back angle brackets from the seat frame.
11. Align FRONT of seat frame with wheelchair front frame (Detail "B").
12. Install two allen screws and locknuts to secure front of seat frame to wheelchair front frame (Detail "B").
13. Install the screw, nylon washer and locknut to secure the rear of the seat frame to the wheelchair frame in the position noted
in STEP 4.
14. Install the bolt, stop, two washers and locknut onto the rear of the seat frame (Detail "C").
15. Repeat for opposite side of the wheelchair.
16. Align the latches on the back angle brackets with the stops installed in STEP 14 (.Detail "D")
17. secure the front of the back angle brackets to the seat frame with the bolts, washers, nylon spacers, coved spacers, washers
and locknuts (Detail "C").
18. Reverse STEPS 1‐3 to install wheel locks, seat upholstery and rear wheels.
Wheelchair
Frame
Nylon Washer
Locknut
Back Angle
Bracket
Washers
Locknuts
Stop
Bolt
Nylon Spacer
A4 Owner's Manual
DETAIL "A" - REAR SEAT
FRAME
Screw
Rear of Seat
Frame
DETAIL "C" -
REMOVING/
INSTALLING
THE BACK
Hook
Washer
Seat Frame
Coved Spacer
FIGURE 5.4 Replacing Seat Frame
Front of Seat Frame
DETAIL "B" -
FRONT SEAT
FRAME
Screw
Wheelchair
Frame
Stop
Hook
26
Allen Screw
Locknuts
DETAIL "D" -
INSTALLING THE
BACK
Back Angle Bracket
Seat Rail
Part No 1110545