V-Trak Backrest, User Manual, Page: 15 / 32

Adjusting the backrest shape – V-Trak ranges
The adjustment zones:
Each Axxis backrest has five adjustment zones. The
Central zone (1) in Figure 25 extends from the top
to the bottom and controls the vertical profile of
the backrest.
Variations in profile as shown in Figure 24 are
achieved by adjusting the tension of the four
internal horizontal straps.
The straps can be adjusted to provide a response
which can vary from soft to virtually rigid within the
travel of the tensioning mechanism.
The patented tensioning mechanism provides extra
leverage to make adjustment easy and to facilitate
fine and precise adjustments.
The additional adjustment zones are two pairs
of adjustable wings, two at thoracic level
(numbers 2 & 3) and two at pelvic level
(numbers 4 & 5).
Figure 25 shows the client's right hand
thoracic wing (zone 2) adjusted to the
maximum inward position and the
remaining wings (zones 3, 4 & 5) in their
maximum outward positions.
These wings are all independently
adjustable using a single screw for each
wing. The screw adjustment allows easy,
fine and precise adjustments to be made
and to create symmetrical and/or
asymmetrical reductions in width as
required.
In addition to providing the correct
amount of lateral support, the wing
adjustment can also be used to reduce the
overall width of the backrest and to provide
greater depth of support.
1
2 3
4 5
Figure 25
Figure 24