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Figure 22: Step 5: Returning the belt through the
tensioning loop to obtain the required "double
passage"
Figure 23: Step 6: Pulling the belt through for the
double passage
Leave the loop
Figure 24: Step 7: Double passage
19
Operating instructions SPEEDY F4 & F2
Figure 25: Step 8: Threading in the belt
Figure 26: Step 9: The belt has been fully threaded
19.3 Ergonomic back shell & its setting
options
The back system "Ergonomic back shell"
comprises an aluminium shell, Velcro cross-
straps and a back padding.
There is already a slack integrated in the back
shell due to the shape of the back shell.
Nothing can be adjusted here.
However, lumbar support can be achieved
using the Velcro cross-straps. For this
purpose, the back padding is removed over the
Velcro straps. Now the cross-straps can be
tensioned to the respective individual
requirements by undoing and reapplying the
Velcro strap system.
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