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7. Fix each vertical section, left and right, to the upper cross arm, using the
clamping brackets, the M6x20 hexagon socket screws and the washers
supplied. The two vertical sections serve as spacers when mounting
the lower cross arm.
Important!
Before tightening the screws, push the vertical sections to
the very stop towards the duct roof and
align the supports parallel
to the duct wall
and at a
right angle to the duct roof
.
Note
: On systems with twopart vertical profiles the shorter section
piece is always on top.
8. If applicable assemble the lower and middle cross arms.
Important!
Tighten the screws only to a point at which the wall supports
can still be moved in the U-section.
Note:
If your system has only one cross arm proceed with step 11.
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