Operating instructions SPEEDY 4all & 4you & 4teen
21
Figure 37: Step 10 threading in the belt
18.3 Ergonomic back shell & its setting
options
The back system "Ergonomic back shell"
comprises an aluminium shell, Velcro cross-
straps and a back padding.
There is already a slack integrated in the back
shell due to the shape of the back shell.
Nothing can be adjusted here.
However, lumbar support can be achieved
using three Velcro cross-straps. For this
purpose, the back padding is removed over the
Velcro straps. Now the cross-straps can be
tensioned to the respective individual
requirements by undoing and reapplying the
Velcro strap system.
Figure 38: Ergonomic back shell (view from behind)
Figure 39: Ergonomic back shell without back
padding with Velcro cross-straps
Then mount the back upholstery using the
Velcro straps.
19 Seat system
Avoid falling into the seating and back
padding as the risk of an adjustment, falling or
a defect is increased significantly.
The seat system generally either comprises a
spring suspended Body Contour seat
upholstery or an open belt system.
With a seating system from
Body Contour
seat upholstery
, there is no adjustment
option. The Body Contour seat upholstery has
a springing effect and when seating,
automatically forms a slack.
Figure 40: Body Contour seat upholstery
The
open belt system
can be subsequently
adjusted. The slack of the seating surface can
be changed using fleece hook-and-loop straps.
Velcro cross-straps