Invacare Top End Owner's Operator And Maintenance Manual page 26

SECTION 4—BACK
95° Back Angle to Seat Rail
Back Post
TOP Hex
Screw and
Locknut
Back Angle Bracket
85° Back Angle to Seat Rail
Back
Post
Indexing Notch
TOP Hex Screw and
Locknut
Back Angle Bracket
FIGURE 4.2 Back Angle Adjustment - All Models Except Terminator Wheelchairs
Terminator Wheelchairs
NOTE: For this procedure, refer to FIGURE 4.3 on page 27 and FIGURE 4.4 on page 28.
NOTE: The numbers on the back angle plate are intended to define the resulting back angle of a chair that has 2 inch seat drop (at 17
inch depth) and that is measured relative to true vertical with the chair sitting on a level surface. The plus (+) sign increases the back
angle and the minus (‐) sign decreases the back angle. The resulting back angle will vary somewhat depending on your chair
configuration. Refer to FIGURE 4.4 on page 28 to see these settings converted into back angle relative to the seat.
NOTE: Perform this procedure on both sides of the wheelchair at the same time.
1. Fold down the back. Refer to Unfolding/Folding the Back on page 25.
2. Loosen the jam nut on the placement screw located at the bottom of the back cane (Detail "A").
3. Tighten the placement screw so that the screw and jam nut are snug against the bottom of the back cane (Detail "B").
4. Remove the mounting screw that secures the adjustment square to the back angle plate (Details "A" and "C").
5. Remove the adjustment square from the back angle plate (Detail "C").
NOTE: Note the indent on the adjustment square. When the adjustment square is positioned in the back angle plate, the number that is
located directly next to the indent will be back angle relative to true vertical. One side of the adjustment square provides back angles of
‐8°, 0° and ‐4°. Flip the adjustment square over to obtain back angles of 8°, 4° and 0° (FIGURE 4.3).
If the adjustment square is installed into the back angle plate so that a number does not appear
next to the indent, DO NOT use this position, otherwise injury will occur. This position of the
adjustment square does not allow the locking pins to lock into position when the back is raised.
6. Position the adjustment square in the back plate with the indent located underneath the desired back angle
(FIGURE 4.3).
Everyday Series Wheelchairs/Sport Series Wheelchairs
90° Back Angle to Seat Rail
Indexing
Notch
Cam
Seat Rail
80° Back Angle to Seat Rail
Cam
Seat Rail
Back Post
Indexing Notch
TOP Hex
Screw and
Locknut
Back Angle Bracket
Seat Rail
Back Post
Indexing
Notch
TOP Hex
Screw and
Locknut
Back Angle Bracket
Seat Rail
WARNING
26
75° Back Angle to Seat Rail
Back Post
Cam
TOP Hex Screw and
Locknut
Back Angle
Bracket
Cam
Indexing
Notch
Cam
Seat Rail
Part No 1122172