Adjusting The Back Height; Removing/Installing The Back Canes - Invacare Pronto M91 Service Manual

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.

Removing/Installing the Back Canes

NOTE: For this procedure, refer to FIGURE 4.16 on page 58.
NOTE: Existing hardware will be reused.
NOTE: Take note of position and orientation of mounting hardware for reinstallation.
Removing
1. Remove armrest from the wheelchair. Refer to Removing/Installing Flip Back Armrest
on page 69.
2. For proper installation, note the mounting position of the upper hex screw securing
the cane bracket to the back cane.
3. Remove the upper hex screw, washer and locknut securing the cane bracket to the
back cane.
4. Remove the lower hex screw, washer and locknut securing the cane bracket to the back
cane.
5. Remove the back cane from the wheelchair.
6. 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 4.16.
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 57.
• Changing the Back Angle ‐ the mounting hole determined in Adjusting the Back
Angle on page 56.
3. Torque both locknuts to 13 ft‐lbs.
4. Repeat STEPS 1 ‐ 3 for the opposite back cane.
5. Reinstall the flip back armrest onto the wheelchair. Refer to Removing/Installing Flip
Back Armrest on page 69.
Part No. 1125038
57
SECTION 4—SEAT
®
Pronto M91™and M94™