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HDE 17.03.21
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8.1.19.
Now mount all further steps of the inner stair
stringer and connect them with the remaining axis
screw (tightening torque 2Nm).
If the axis screw cannot be screwed in, the
drill hole of the stair stringer element is not in
alignment with the drill hole of the step. Move
the components slightly back and forth so that
the axis can be inserted.
After each screwing, check again by lifting the step
whether there is sufficient damping of the step (see
8.1.18).
8.1.20.
In order to be able to mount the outer stair stringer,
the staircase is prepared for the installation of the
steps like the following:
Cut a strip of cardboard about 5 cm wide from the
shipping box. Then cut it into squares of approx. 5
cm.
Fold the cardboard pieces once in the middle.
Set up the steps one by one and push the folded
cardboard between the step and the stair stringer
(see picture).
8.1.21.
When all the steps have been set up, all the steps
except the two outer steps and the middle step are
then moved into a slightly inclined position (slightly
above 90°).
The outer and one middle step should
remain aligned at an angle of approx. 90° to the
stair stringer, so that the outer stair stringer can be
inserted next.
en
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