V-Trak Backrest, User Manual

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Assembling backrest segments
1.To join segments together, use the special hinge (SH SD)
provided. The hinge screws are long enough to locate in
the safety locking holes in the backrest track and must
be unscrewed sufficiently to allow assembly. See Figure
15.
2.Tighten both hinge screws keeping the hinge elements
in a straight line at first.
3.Install the system in the wheelchair.
4.To adjust the angle between adjacent segments,
unscrew the two hinge screws about four turns using a
10mm wrench. There is no need to dismantle the hinge.
5.Slightly separate the hinge to allow the internal teeth to
slide over each other.
6.Adjust the angle of the segment to the desired position.
7.Lock the hinge by tightening both screws with the
10mm wrench.
Note: The hinge must be adjusted to achieve equal
overlap (dimension ”A” in Figure 16).
Figure 14a
Figure 15
Figure 16
A A
A A
Several segments may be joined. This will increase the
height of the system and greatly increase the range of
sizes and shapes which can be accommodated. In
addition, segments may be joined top to top, bottom to
bottom, top to bottom and inverted in order to
accommodate shapes or to create cavities where
required
Axxis backrests can also be configured in a fully
sectional or segmented form. Typically, the thoracic
and lumbar regions are separate but joined by
adjustable hinges as in
Figure 14b.
The size and clinical capacity of all ranges can be
increased by adding segments and/or accessories to
standard one-piece backrest as in
Figure 14a.
Figure 14b