INSTALLATION - RACKING
33
RAIL INSTALLATION
1. Install rails onto the roof interfaces. If
the assembly consists of rails of
different lengths, always begin with the
shortest piece. Install the rail loosely
onto the roof interfaces using the Allen
head bolt, washer, retaining washer and
Z-modules supplied (2 to 3 turns of the
bolt are adequate for loose installation).
Refer to step 2 for method of inserting
Z-module into rail.
2. For easy use of Z-modules ensure that
Allen head bolt threads do not project
through lower side of Z-module so that
the Z-module is free to move. Position
Z-modules in rail channel as shown and
fasten loosely with 2 to 3 turns of Z-
module Allen head bolt. The rail can
then be freely moved along Z-modules.
3. Adjust the vertical and horizontal
position of the rail by taking advantage
of the long hole in the tile and metal roof
interfaces and the still loose connection
of the rail Z-modules.
4. Align all rail ends.
For adjustable tilt legs:
align the rail
tilt orientation (use a string line if
necessary).
Tighten all previously loosely installed
rail and feet Z-module Allen head bolts
to a torque of 21 Nm.
5. To connect multiple rails together, slide
a splice on to the rear side of the
previously assembled rail. Tighten the
first splice Allen head bolt to 15 Nm.
Slide the next rail segment into the
splice. An expansion gap at the rail
joints is recommended. Leave a gap of
approximately 10 mm between the rail
joints and then tighten the second Allen
head bolt to 15 Nm.
