Invacare Spectra XTR, Руководство по обслуживанию, Страница: 9 / 48

Setup
The user weight and seat depth have strong
influences on the choice of the centre 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 mobility device, the weight should be
distributed: 30 – 40 % front and 60 – 70 % rear.
Front- and centre-wheel drives are uncritical with
regard to distribution of user weight.
Fig. 4-3
Fig. 4-4
CAUTION!
Risk of damage due to collisions of the legrests
with other parts of the mobility device.
– Set legrests to smallest angle before adjusting
seat centre of gravity.
– Pay attention with adjusting the seat centre
of gravity that the legrests do not touch any
other parts of the wheelchair. This ensures
that the legrests cannot 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.
4.4.1 Modulite Seat
The Modulite seat is available in two versions:
• Adjustment of the centre of gravity via the lateral
profiles of the telescopic seat frame (plate and strap).
See
Telescopic Seat Frame, page 9 .
• Adjustment of the centre of gravity via the oblong
holes of the seat adaptor (one-piece seat plate). See
One-Piece Seat Plate, page 10 .
If the mobility device is used with drive lock-out, the
seat centre 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. See 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 10 .
• Place a wooden block under the backrest to avoid
collisions between frame and back.
If the mobility device is used with the drive
lock-out, variations to the values stated below can
occur. See
Mounting Position of Seat Frame, page
10 and Seat Depth Setting, page 10 .
Fig. 4-5
The front edge of the seat frame profile should be located
35 mm in front of the steering heads of the castors. 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
castors.
Telescopic Seat Frame
• 6 mm Allen key
1528338-Q
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