V-Trak Backrest, User Manual, Page: 16 / 32

Adjusting the backrest shape – Axxis ranges
Notes:
1. All one piece backrests have four internal straps and four adjustable wings. Each backrest
segment has two straps and two adjustable wings.
2. Width adjustments have a fixed range. Movement beyond this range is prevented by
mechanical stops. These are effective for reasonable amounts of force. Please observe these
limits to ensure the proper deployment and performance of the backrest.
3.
Please be aware that in common with all thermoplastics some “creep” is inevitable. A wing
adjusted to its maximum inward deflection may not return immediately when released. This
will be more evident in a cold environment than in a warm one.
4.
We advise that all adjustments should be undertaken in reasonable ambient temperatures.
Figure 27 - All Axxis one piece and
segmented backrests and
segments
up to 50cm (20”) wide.
Use a 4mm Hex Key Wrench to
adjust from the
inner screw head
Adjusting zones 2 – 5
Working from the rear of the
backrest as in
Figure 26 , open the
cover to expose the rear of the
backrest shell. Each strap has its
own
tensioner (P)
To adjust a strap, first release the
tensioner by twisting and then
pulling in the direction of the
arrow (1) and away from its base
until it is free. Then pull in the
direction of the arrow (1) until the
desired tension is achieved.
To lock the tensioner, press back
into its base in the new position.
Adjusting zone 1
Figure 28 – Axxis 60cm (24”) wide
backrest and segments.
Use a 4mm Hex Key Wrench to
adjust from the
outer screw head
Wing Adjustment
Screws
Figure 26
1. - Pull to
tension strap
Figure 26
P
– Strap tensioners
4mm key
wrench