Invacare Bora XTR Series Service Manual page 8

Invacare® Bora® / Spectra® XTR Series
The user weight and seat depth have strong influences on
the choice of the center of gravity (CoG). If the user is heavy
and the seat depth is greater, the focus should be the farther
back. For best possible driving characteristics of rear-wheel
drive wheelchairs, the weight should be distributed: 30 – 40
% front and 60 - 70 % rear.
CAUTION!
Risk of damage due to collisions of the legrests
with other parts of the wheelchair
– Set the legrests to the smallest angle before adjusting
the seat center of gravity.
– Pay attention with adjusting the seat center of gravity
that the legrests do not touch any other parts of the
wheelchair. This ensures that the legrests can not
collide with other parts of the wheelchair.
Seat systems
For details on
•
Standard seat
•
Flex2 seat
•
Firm seat
•
Max seat
refer to revision 15 of this service manual.
For details on Modulite seat see below.
Modulite seat
The Modulite seat is available in two versions:
•
Adjustment of the center of gravity via the lateral profiles
telescopic seat frame (plate and strap), as described in Telescopic
seat frame, page 8 .
•
Adjustment of the center of gravity via the oblong holes of the
seat adaptor one piece seat plate, as described in One piece
seat plate, page 8 .
If the mobility device is used with drive lock-out, the seat center of
gravity can be safely monitored in the corresponding seat position.
Drive lock-out is a feature designed to prevent the wheelchair from
being driven after the seating system has been tilted beyond the safe
total angle relative to the vertical position. The total angle can be any
combination of tilt, recline and/or surface angle.
Refer to the user manual for more information on this function. The
seat position settings with various combinations of seat depth, seat
width, cushion type and backrest style are described in Seat depth
setting, page 9 .
•
Place a wooden block under the backrest, to avoid collisions
between frame and back.
8
If the mobility device is used with the drive lock-out,
variations to the values stated below can occur. Refer to
Screw on position of the seat frame, page 9 and Seat depth
setting, page 9 .
The front edge of the seat frame profile should be located 35 mm in
front of the steering heads of the casters. If you decrease this value,
make sure that
•
You decrease the seat depth by the same value and
•
There are no collisions between the legrests and the casters.
Telescopic seat frame
•
6 mm Allen key
Remove seat plate or sling seat (1), see Modulite Service Manual
1.
"Adjusting seat width/ backrest width".
2. Loosen screws (2) in front and rear, left and right – DO NOT
remove.
3. Shift position of seat.
4. Re-tighten screws.
5. Install seat plate or sling seat.
One piece seat plate
Tools:
•
6 mm Allen key
1528338-P