Invacare Adjustable ASBA Seat - Manual (Page 51)

SECTION 9—ADULT BACKS
Part No 1143238 51 Adjustable ASBA Seat
Adjusting the Back Height
Contoura Backs ‐ There is no height adjustment available for wheelchairs with Contoura
backs.
Upholstered Backs ‐ The back canes MUST be replaced to adjust the back height for
upholstered backs. Refer to Removing/Installing the Back Canes on page 51.
Removing/Installing the Back Canes
NOTE: For this procedure, refer to FIGURE 9.3 on page 52.
NOTE: Existing hardware will be reused.
NOTE: Take note of position and orientation of mounting hardware for reinstallation.
Removing
1. If applicable, remove the back pan. Refer to Removing the Contoura Back on page 48.
2. Remove armrest from the wheelchair. Refer to the wheelchair owner’s manual.
NOTE: Note the back angle before disassembly for proper reinstallation.
3. For proper installation, note the mounting position of the upper hex screw securing
the cane bracket to the back cane.
4. Remove the upper hex screw, washer and locknut securing the cane bracket to the
back cane.
5. Remove the lower hex screw, washer and locknut securing the cane bracket to the back
cane.
6. Remove the back cane from the wheelchair.
7. Repeat STEPS 2 ‐ 6 for the opposite back cane.
Installing
NOTE: If replacing back canes, discard existing back canes and perform this procedure using new
back canes.
1. Install the lower hex screw, washer and locknut through the slot in the cane bracket to
secure the cane bracket to the back cane.
NOTE: The cane bracket should be positioned as shown in FIGURE 9.3.
2. Install the upper hex screw, washer and locknut through one of the following:
• Using the Same Back Angle ‐ the mounting hole noted in STEP 3 of Removing on
page 51.
• Changing the Back Angle ‐ the mounting hole determined in Adjusting the Back
Angle on page 50.
3. Torque both locknuts to 13 ft‐lbs.