Installation Guide

CAUTION:
Be sure to place
the 3/8” square
washers on the
surface of the
Cross-Bar and not
the Mounting
Angles of the
Strongback.
Failure to do so
will damage the
surface of the
Cross-Bar when
the attaching
hardware is
tightened.
7 of 13
Figure 3-3: Installing Cross-Bars on the Strongback
N
E
W
S
Strongback
Cross-Bar
with 3-1/2” Tabs
Center
Mounting
Angle
3/8” Square
Washer
Flat Washer
Lock Washer
Flat Washer
3/8” Nut
3/8” x 3-1/4”
Bolt
Cross-Bar
Module
Rail (in )Red
View looking North
Cross-Bar
Mounting Tab
Figure 4-1: Orientation of Module Rails to Cross-Bars
Step 4: Install the Module Rails to the Cross-Bars
Module Rails run in an N-S direction and are secured to the mounting tabs of the
Cross-Bars (these are welded to the Cross-Bars) using 3/8” x 1” bolts and hardware.
Module Rails have different end configurations and must be installed with these
differences in mind. One end has an angle cut while the other end is square cut. The
angled ends are oriented to the N-S outer edges of the rack while the square cut is
oriented inboard forming a butt joint between two Module Rail ends.
Additionally, Module Rails are installed differently depending on whether they are
mounted inboard or on the outer edges of the Cross-Bars. (See Figure 4-1)
CAUTION:
This is a two
person activity.
Module Rails are
unstable before
they are fully
secured to the
Cross-Bars.
Module Rails must
be held in place
by one person
while the second
person aligns and
secures them to
the Cross-Bars.
Failure to do so
could lead to
serious personal
injury.
Assembly Instructions, Top-of-Pole Mount for 12 Modules (TPM12) For Module Types A, B & C (Version 2, Rev D)