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Figure 31: Ergo Back backrest bracket with backrest
support on SPEEDY F2 Overlite, backrest
upholstery fitted
Figure 32: Ergo Back backrest bracket with backrest
support on SPEEDY F2 Overlite, backrest
upholstery removed
If the Ergo Back backrest bracket is fitted with
a back shell instead of the adjustable backrest
support, the adjustment possibilities described
in chapter 19.3 apply.
Figure 33: Ergo Back backrest bracket with back
shell
21
Operating instructions SPEEDY F4 & F2
20 Seat system
Avoid falling into the seating and back
padding/back shell as it significantly increases
the risk of an adjustment, falling down or
defects.
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 34: Body Contour seat upholstery
The open belt system can be subsequently
adjusted. Using the fleece hook-and-loop
straps, the slack in the seating surface can be
changed so that it suits your seat cushion
system. In doing so, the seat tension should
not have too much slack to avoid touching the
frame cross tubes.
Figure 35: Open belt system with fleece hook-and-
loop straps for adjusting the slack
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