3. Remove the rear wheels from the wheelchair. Refer to Removing/Installing Rear
Wheels on page 101.
4. Unfold the wheelchair and lay wheelchair on its side. If necessary, refer to Safety/
Handling of Wheelchairs on page 20.
5. Remove the two hex screws and two coved washers that secure the existing seat rails
to the crossbraces.
6. Install the new or reposition the existing seat rails to position determined in STEP 1.
7. Secure new/existing seat rails to the crossbraces with existing coved washers and hex
screws.
8. Install the new seat upholstery. Refer to Replacing Seat Upholstery on page 78.
9. Reposition the back if necessary. Refer
to Replacing Standard Back Upholstery
on page 63.
10. Reinstall the rear wheels onto the
wheelchair. Refer to Removing/
Installing Rear Wheels on page 101.
NOTE: If the wheelchair has become less stable
after repositioning the seat rails to the desired
seat depth, reposition the rear wheels. Refer to
Adjusting the Wheelbase Length on page 110.
Repositioning the Crossbraces
NOTE: For this procedure, refer to FIGURE 8.3 on page 80.
The seat height, seat depth, back angle, seating system, size/position of the rear
wheels, size/position of the front casters, as well as the user condition directly relate
to the stability of the wheelchair. Any change to one or any combination of the nine
may cause the wheelchair to decrease in stability. These adjustments MUST be per-
formed by a qualified technician.
1. Determine the necessary self‐tapping screw and washer position for the desired seat
depth of the wheelchair. Refer to Changing Seat Depth on page 86.
2. Remove the two hex screws, two locknuts and lower crossbrace saddles that secure the
bottom of the two crossbraces to the wheelchair frame.
3. Loosen, but do not remove the hex screws and locknuts that secure the two pivot links
to the wheelchair frame and crossbraces.
4. Reposition the self‐tapping screw and washer to the position determined in STEP 1.
5. Reverse STEPS 2‐3 to reassemble wheelchair.
Part No 1127114
Crossbrace
Hex
Screw
FIGURE 8.2 Changing/Repositioning Seat
WARNING
79
SECTION 8—SEAT
Seat Rail
Coved Washer
Rails
Compass™XE and Allegro®