PROCEDURE 4

SEAT

 

 

 

S E A T

REPOSITIONING THE CROSSBRACES (FIGURE 3)

WARNING

The seat height, seat depth, back angle, seating sys- tem, size and position of the rear wheels, as well as the user condition directly relate to the stability of the wheelchair. Any change to one (1) or any combi- nation of the seven (7) may cause the wheelchair to decrease in stability. These adjustments MUST be performed by an authorized dealer or qualified tech- nician.

1.Determine the necessary self-tapping screw and washer position for the desired seat depth of the wheelchair. Refer to CHANGING SEAT DEPTHS in PROCEDURE 10 of this manual.

2.Remove the hex bolts, locknuts and lower crossbrace saddles that secure the bottom of the two (2) crossbraces to the wheelchair frame.

3.Loosen, but do not remove the hex bolts and lock- nuts that secure the two (2) pivot links to the wheel- chair frame and crossbraces.

4.Reposition the self-tapping screw and washer to the position determined in STEP 1.

5.Reverse STEPS 2-3to reassemble wheelchair.

NOTE: If the wheelchair has become less stable af- ter repositioning the self-tapping screw and washer to the desired seat depth, reposition the rear wheels. Refer to ADJUSTING THE WHEELBASE LENGTH in PROCEDURE 6 of this manual.

Pivot Links

Hex Bolts,

Loosen But Do

Not Remove

Hex Bolts and

Locknuts

Wheelchair

Frame

Lower Crossbrace

Saddle

Self-Tapping Screw and Washer

FIGURE 3 - REPOSITIONING THE CROSSBRACES

CHANGING SEAT WIDTH

WARNING

The following procedure must be performed by an authorized Invacare dealer or qualified technician.

Standard Folding Frames (FIGURE 4)

1.Remove existing back and seat upholstery from the wheelchair. Refer to REPLACING BACK UPHOL- STERY in PROCEDURE 3 and REPLACING SEAT UPHOLSTERY in this section of the manual.

NOTE: If adjusting the seat width of the wheelchair, the back and seat upholstery MUST also be changed.

2.Remove the seat rails from the crossbraces. Refer to CHANGING/REPOSITIONING SEAT RAILS in this section of the manual.

3.Remove the hex bolts and locknuts that secure the two (2) pivot links to the wheelchair frame and crossbraces.

4.Remove the hex bolts, locknuts and lower crossbrace saddles that secure the bottom of the two (2) crossbraces to the wheelchair frame.

5.Remove the hex bolt, coved spacers, washers and locknut that secure the two (2) existing crossbraces together.

NOTE: Note orientation of coved spacer, washer and locknut order for reinstallation.

6.Assemble the two (2) new crossbraces together. Refer to FIGURE 4 for hardware orientation.

7.Determine the mounting hole in the pivot link for the corresponding seat width.

NOTE: Seat widths are stamped on the pivot link.

8.Reinstall the hex bolts and locknuts that secure the pivot link to the wheelchair frame and crossbrace.

9.Reinstall the hex bolts, locknuts and crossbrace saddles that secure the bottom of the two (2) new crossbraces to the wheelchair frame.

NOTE: Position the crossbrace saddle on wheelchair frame using the self tapping screw and washer on the underside of wheelchair frame as reference. Re- fer to FIGURE 4.

10.Reinstall the seat rails onto the crossbraces. Refer to CHANGING/REPOSITIONING SEAT RAILS in this section of the manual.

11.Install the new back and seat upholstery onto the wheelchair. Refer to REPLACING BACK UPHOL- STERY in PROCEDURE 3 and REPLACING SEAT UPHOLSTERY in this section of the manual.

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Invacare 96-100 Procedure Seat, Repositioning the Crossbraces Figure, Changing Seat Width, Standard Folding Frames Figure