Ultra Low Maxx Seat
The seat depth
A
can be adjusted by moving the position of side rails with front seat plates in relation to the backrest. See
user manual of Ultra Low Maxx.
4.2.3 Adjusting Centre of Gravity of Seat
The centre of gravity of seat (CoG) can be adjusted by mounting seat frame farther towards front or the rear of seat.
CAUTION!
The seating system of the mobility device is delivered ex works with a standard adjustment of centre of
gravity (CoG), which meets 80 % – 90 % of user requirements. CoG can be adjusted individually. However, any
change in this adjustment setting can negatively influence the stability of the mobility device.
– You must perform an individual risk analysis every time you change the centre of gravity of the seating
position, in order to ensure the safety and stability of the mobility device.
A: Seat depth
B: centre of gravity of the seat/ seat position
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 devices, the weight should be distributed: 30 % – 40 % front and 60 % - 70 % rear. For
center wheel drives the weight should be distributed 25 % front, 50 % center and 25 % rear.
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 seat centre of gravity that legrests do not touch any other parts of mobility
device. This ensures that the legrests can not collide with other parts of mobility device.
Seat systems
For details on Modulite seat and Ultra Low Maxx seat see the following sections.
4.3 Adjusting Centre of Gravity — Ultra Low Maxx Seat
•
4 mm Allen key
Fig. 4-1
The following tables list the recommended module positions depending on the wheelbase length and the seat depth. The
xx value is the distance between the rear edge of the height-adjustment bracket and the rear edge of the main frame.
1654647-B
9
