Installation Guide

Step 3: Install the Module Rails to the Strongback

Module Rails run in an E-W direction and are secured to the mounting tabs of the

Strongback using 3/8” x 1” bolts and hardware. There are six Rails to install.

The orientation of the Module Rails to the Strongback is critical to the successful

installation of the PV Modules. In Figure 3-1, the location and orientation of the

Module Rails are identified using the numbers 1, 2, 3, 4, 5 & 6. Match the Rail

number within Figure 3-1 to properly orient the Module Rails to the Strongback.

A. Referring to Figure 3-1 for orientation of the Module Rails, position and

align the Module Rail mounting holes with the holes of the Strongback

mounting tabs and secure with 3/8” x 1” bolts and hardware. Finger-tighten

for now. (See also Figure 3-2)

Start by installing the inboard sections of Module Rail first and work outward

Figure 2-3: Securing Support Bar to Mounting Sleeve

5 of 9

3 Bolt/8” or 1/2” x 1-3/4”

Flat Washer

Pivot Tab

Flat Washer

Lock Washer

Support Bar

3/8” or 1/2” Hex Nut

Figure 2-4: Tighten and Torque the Pivot Bolt

Strongback

Towers

No Gaps

Pivot

Bolt

Strongback

Towers

Visible

Gaps

Visible

Gaps

Pivot

Bolt

WRONG

CORRECT

Assembly Instructions, Top-of-Pole Mount for 9 Modules (TPM9) For Module Types C, D, E, F, G & H, (Version 2, Rev E)