Invacare Pronto M71 Service Manual page 48

SECTION 4—SEAT ASSEMBLY
5. Position back assembly between the back angle plates (FIGURE 4.15).
6. On one side of wheelchair, align back cane mounting holes with the desired mounting
holes of the back angle plate.
7. Remove the two mounting screws used to keep inserts in the back canes in STEP 3. Set
mounting screws and inserts aside.
The back canes MUST be fastened securely to the seat frame BEFORE using the
wheelchair. Torque to 75-inch-lbs.
8. From outside of wheelchair, secure the back cane to the back angle plate using two
mounting screws, washers, coved washers and locknuts (FIGURE 4.15). Use Loctite
242 and torque to 75-inch-lbs.
9. Repeat STEPS 6-8 on opposite side of wheelchair.
10. Secure the top of the back upholstery to the back canes with the two existing mounting
screws.
11. Using two new tie-wraps, secure bottom of back upholstery to the seat frame.
12. If necessary, reposition the spreader bar at the correct height for the corresponding
back height and torque the mounting hardware to 60-inch-lbs (FIGURE 4.15).
13. If present, secure back upholstery hook and loop straps around back canes.
14. Reinstall the flip back armrest onto the wheelchair. Refer to Removing/Installing Flip
Back Armrest on page 58.
Pronto® M71™
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WARNING
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Part No 1118377