Invacare Pronto M91 Service Manual page 44

SECTION 4—SEAT
2. Remove the mounting screw, washer, coved washer and locknut from the top
mounting hole of back angle plate and back cane (FIGURE 4.10).
NOTE: To avoid losing the insert in each back cane, thread the mounting screw through the cane
from the inside of wheelchair to hold the insert in place.
3. Remove the mounting screw, washer, coved washer and locknut from the bottom
mounting hole of the back angle plate and back cane.
4. Reposition the back canes into the correct mounting holes of the back angle plate to
obtain a back angle between 80° and 100° in 5° increments.
5. Starting with the bottom mounting hole, use the two (2) mounting screws, washers,
coved washers and locknuts to secure the back cane with insert to the back angle plate.
6. Torque mounting screws to 75-inch-lbs.
7. Reinstall the flip back armrests onto the wheelchair. Refer to Removing/Installing Flip
Back Armrest on page 53.
ANGLE
80°
85°
90
O
95°
100°
® ™
Pronto M91 and M94
BACK CANE MOUNTING HOLE
Top
Bottom
Top
2nd From
Bottom
Top
Bottom
Top
2nd From
Bottom
Top
Bottom
FIGURE 4.10 Adjusting the Back Angle
BACK ANGLE PLATE HOLE
Back
Cane
Back
Cane
Back
Cane
Back
Cane
Back
Cane
44
Top Front
Bottom Rear
Back Angle
Plate
Top Front
Bottom Center
Back Angle
Plate
Top Front
Bottom Front
Back Angle
Plate
Top Center
Bottom Front
Back Angle
Plate
Top Rear
Bottom Front
Back Angle
Plate
Part No. 1125038