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Figure 1: Backrest screwed permanently onto side
parts, equipped with side parts with welded tube
bracket
Figure 2: Backrest screwed permanently onto side
panel, equipped with aluminium side panel
Depending on the type of the frame and
equipment, a permanent adjustment of the
backrest of 5° forwards or backwards is
possible using tools however. It is not possible
to make this adjustment with the Overlite frame
version with complete seat and backrest made
from one bended tube. This adjustment is
possible in the frame versions of the product
with a separate back unit which are also fitted
with an "Aluminium side panel". There are
three holes in the rear of the side panel on the
top and bottom to position the backrest tube.
To adjust the backrest 5° forwards or
backwards, loosen both M5 fastening bolts
(AF 3 mm) with washers on each side and
position the fastening bolts with washers in the
desired holes of the side panels (use the same
hole on the right and left). Then tighten up the
M5 fastening bolts (AF 3 mm) again to 4 Nm
and secure these with thread lock fluid.
11
Operating instructions SPEEDY F1
Three holes on the top and
the bottom to adjust the
backrest position
Figure 3. Adjusting the backrest position using holes
in the side panel
18.1.2 Adjustment possibilities with an
adjustable backrest
If equipped with an adjustable and foldable
backrest, the backrest angle can be flexibly
adjusted without using tools and the backrest
can be completely folded away. The angle of
the backrest can be fixed in 7 positions.
Observe that the centre of gravity is
shifted further to the rear by the enlargement of
the angle between the backrest and the seat
system and thus, the tipping point of the
product is reached much sooner.
18.1.3 Instructions for sitting posture with
an adjustable backrest
For a good sitting posture, we recommend
positioning the backrest vertical to the ground,
where possible.
With low backrest with adaptable belt cover
due to a disability, under certain
circumstances, it may also be a benefit for a
good sitting stability to slightly tilt the backrest
to the front and to slacken the top belt of the
back padding so that the slack in the upper
area is greater (see chapter 18.2).
The adjustment possibility of the backrest
angle supports active sitting and ensures for
flexibility of the wheelchair user.
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