Section 5-Frame; Back Angle Adjustment; Back Height Adjustment - Invacare A4 Owner's Manual

SECTION 5—FRAME
SECTION 5—FRAME
After ANY adjustments, repair or service and BEFORE use, make sure all attaching hardware is
tightened securely - otherwise injury or damage may occur.

Back Angle Adjustment

NOTE: For this procedure, refer to FIGURE 5.1.
NOTE: Perform this procedure on both sides of the wheelchair at the
same time.
1. Loosen, but DO NOT remove the locknuts and hex screws
that secure the back angle bracket to the seat rail and the
back cane.
2. Loosen the top locknut and slide the top hex screw away
from the back angle bracket to adjust the cam.
3. Adjust back canes to back angle required.
4. Adjust cam to achieve desired position.
NOTE: An indexing notch has been put on the cam to help determine
cam position for desired back angle adjustment.
5. Secure cam in desired position. Tighten hex screws and
locknuts securely. DO NOT distort frame tube.
NOTE: As shown in FIGURE 5.1, the adjustment cam can be
rotated to several different positions thus changing the overall back
angle relative to the seat rail.

Back Height Adjustment

NOTE: For this procedure, refer to FIGURE 5.2 on page 25.
NOTE: Observe the tautness of the back upholstery/adjustable
tension back upholstery adjuster straps for proper reinstallation.
1. Remove the back upholstery by performing one of the
following:
A. Standard Back Upholstery ‐ Refer to Removing/Installing
Standard Back Upholstery on page 21.
B. Adjustable Tension Back Upholstery ‐ Refer to
Removing/Installing Adjustable Tension Back
Upholstery on page 22.
Push pin of the back cane insert bar MUST be protruding through hole in each back cane.
Ensure that both back cane insert bars are at same height before reassembling the wheelchair.
A4 Owner's Manual
WARNING
95° BACK ANGLE TO
SEAT RAIL
Back Cane
Top Hex Screw
and Locknut
Indexing Notch
Back Angle Bracket
85° BACK ANGLE TO
SEAT RAIL
Back Cane
Indexing Notch
Top Hex Screw
and Locknut
Back Angle Bracket
75° BACK ANGLE TO SEAT RAIL
FIGURE 5.1 Back Angle Adjustment
WARNING
24
90° BACK ANGLE TO
SEAT RAIL
Indexing
Back Cane
Notch
Indexing Notch
Top Hex Screw
and Locknut
Back Angle Bracket
Seat Rail
80° BACK ANGLE TO
SEAT RAIL
Back Cane
Indexing
Notch
Top Hex Screw
and Locknut
Indexing
Seat Rail
Indexing Notch
Back Cane
Indexing
Notch
Top Hex Screw
and Locknut
Back Angle Bracket
Seat Rail
Indexing Notch
Indexing
Notch
Seat Rail
Notch
Back Angle Bracket
Seat Rail
Part No 1110545