Adjusting The Seat Width - Invacare Adjustable ASBA Service Manual

Adjusting the Seat Width

NOTE: For this procedure, refer to FIGURE 9.2 on page 47.
FRAME SIZE
SMALL
LARGE
NOTE: If adjusting the seat width beyond the range of the existing seat frame, the crossbars must
be replaced.
NOTE: The spreader bar MUST be replaced for systems ordered omit upholstery option when
changing between the small frame size and the large frame size.
1. If necessary, remove the spreader bar. Refer to Removing/Installing the Spreader Bar
on page 41.
2. Remove the hex screw and coved washers securing each crossbar to the seat frame.
3. Examine the Seat Width Adjustment Table to determine if the seat width adjustment
is within or beyond the range of the existing seat frame.
4. Perform one of the following:
• Within the Range - Proceed to STEP 5.
• Beyond the Range - Perform the following steps (Detail "A"):
i. Remove the two hex screws securing the crossbars to each side rail.
ii. Remove the crossbars from the side rails.
iii. Insert new crossbars into the side rails.
iv. Position the new crossbars so the mounting hole is facing down and aligned
with the side rail mounting hole.
v. Secure the new crossbars to the side rails using the two hex screws. Torque the
hex screws to 75 in-lbs ± 20%.
5. Pull/push the side rails (Detail "B") to the desired width shown in the following table.
Part No 1143238
Seat Width Adjustment Table
45
SECTION 9—ADULT SEATS
SEAT WIDTH RANGE
16 - 20 inches in 1-inch increments
20 - 24 inches in 1-inch increments
Adjustable ASBA Seat