Comtech EF Data CST-5000 - Manual (Page 65)

CST-5000 C-Band Satellite Terminal Redundant System Installation
Rev. 9 3–11
c. With the RFTs side-by side,
position a 20 inch (51 cm)
unistrut (open side facing
up) in place over one pair of
8 inch (20.3 cm) unistruts.
Ensure the long unistrut is
centered over the RFT.
d. Using two or three 5/16-18
x 1-1/4 inch (6 mm) bolts,
5/16 inch (8 mm) split
lockwashers, and 5/16 inch
(8 mm) flat washers, attach
the 20 inch (51 cm) unistrut
to the 8 inch (20.3 cm)
unistruts.
Tighten the bolts firmly.
e. Attach the second 20 inch (51 cm) unistrut to the second set of 8 inch
(20.3 cm) unistruts by repeating Steps 3.a. through 3.d.
4. Install the pipe blocks as follows:
a. Install two spring nuts in each of the two 20 inch (51 cm) long unistruts and
two 14 inch (35.6 cm) long unistruts (centered in the unistruts, and wide
enough apart so the pipe blocks will clear the pole when the unit is installed).
b. Install each spring nut as follows:
(1) Place the spring nut in the unistrut channel, spring side down, with its
wide side parallel with the unistrut channel.
(2) Press down on the spring nut to compress the spring, and rotate the nut
90 ° (i.e., perpendicular to the unistrut).
(3) Release pressure on the spring nut.