Comtech EF Data RSU-503 - Manual (Page 26)

Installation RSU-503 Redundancy Switch Unit
10 Rev. 8
b. To install each spring
nut:
(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
°
(perpendicular to
the unistrut).
(3) Release pressure on the spring nut.
(4) Repeat Steps 4.b.(1) through 4.b.(3) for each spring nut.
c. Thread a 5/16-18 nut approximately 1-1/2” onto each threaded rod. (This
will ensure that the threaded rods will extend beyond the spring nuts when
installed.)
d. Place a 5/16” split
lockwasher, 5/16” flat
washer, and flat fitting
plate over each
threaded rod.
e. One threaded rod at a
time, hold the washers
and plate in place on
the threaded rod and
screw it into a spring
nut, as illustrated.