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Overview of the lower frame components.
Attach the rear U-pro
fi
le H16 and the front
U-pro
fi
le H15 with two hex screws M3x6
and nuts D547 with Loctite on the right
lower side frame H14 (with three cutouts
of the same contour).
Hold the nuts with an open wrench (f.e.
#707)
It is recommended that assembly is done
on a
fl
at surface while tightening the
screws so that the U-pro
fi
les are parallel
with each other.