Adjustable Asba Seat Service Procedures; Removing/Installing The Seat Pan; Removing; Installing - Invacare Pronto M91 Service Manual

SECTION 4—SEAT

Adjustable ASBA Seat Service Procedures

Removing/Installing the Seat Pan

NOTE: For this procedure, refer to FIGURE 4.11.

Removing

1. Remove the seat cushion.
2. Remove the two socket screws securing
the seat pan to the seat frame.
3. Remove the seat pan from the seat
frame.

Installing

1. Position the new seat pan onto the seat
frame as shown.
2. Secure the new seat pan to the seat
frame using the two socket screws.
3. Install the seat cushion.

Adjusting the Seat Width

NOTE: For this procedure, refer to FIGURE 4.12 on page 52.
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 58.
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"):
®
Pronto M91™and M94™
Seat Pan
FIGURE 4.11 Removing/Installing the Seat Pan
Seat Width Adjustment Table
50
SEAT WIDTH RANGE
16 - 20 inches in 1-inch increments
20 - 24 inches in 1-inch increments
Socket
Screws
Seat
Frame
Part No. 1125038