Invacare Storm 4 Series, Service Manual

Page: 14 / 102

Invacare® Storm⁴ Series
Fig. 4-4
A: Seat depth
B: Centre of gravity of the seat
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 wheelchairs, the weight should be distributed: 30 – 40 % front and 60 - 70 % rear. For centre
wheel drives, the weight should be distributed 25 % front, 50 % centre and 25 % rear.
Fig. 4-5
CAUTION!
Risk of damage due to collisions of the legrests with other parts of the mobility device.
– Set the legrests to the smallest angle before adjusting the 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 can not collide with other parts of the wheelchair.
Seat Systems
For details on
• Easy Adapt seat
• Optimist seat
• Recaro seat
refer to revision 12 of this service manual.
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
4.4.1 Telescopic Seat Frame, page 14 .
• Adjustment of the center of gravity via the oblong holes of the seat adapter one piece seat plate, as described in 4.4.2
One-Piece Seat Plate, page 15 .
4.4.1 Telescopic Seat Frame
• 6 mm Allen key
14 1533060-N