Installation Guide

Step 5: Installing PV Modules to Module Rails
Step 6: Now re-tighten mounting hardware.
PV Modules are secured to the Module Rails using 1/4” x 3/4” bolts and hardware.
Start with the southern most PV Modules and work in a northern direction. This
provides a measure of safety as the previously installed southern Modules can help
to hold the next in-line northern Module in place during installation.
A. Place the southern most PV Module in place on the Module Rails. Align the
mounting holes and secure with 1/4” x 3/4” bolts and hardware. Each
Module has four attachment points. Finger-tighten for now. (See Figure 5-1)
B. Continue in this manner to install all southern most PV Modules first and
then work in a northern direction installing the remaining Modules.
A. Return and tighten each set of the 3/8” mounting hardware, securing the
Module Rails to the Cross-Bars.
B. Return and tighten each set of 1/4” mounting hardware, securing the PV
Modules to the Module rails.
Torque all at 32-34 ft.-lbs.
Torque all at 6-8 ft.-lbs.
CAUTION:
This is a two
person activity. PV
Modules are
heavy and
unstable before
they are fully
secured to the
Module Rails. PV
Modules must be
held in place by
one person while
the second person
aligns and
secures them to
the Module Rails.
Failure to do so
could lead to
serious personal
injury and
damaged
components.
CAUTION:
Be certain to re-
tighten all Module
Rail and PV
Module mounting
hardware and
torque to the
specified values.
Failure to do so
could lead to
structural failure,
damaged
components
and/or serious
personal injury.
Figure 5-1: Installing PV Modules to Module Rails
11 of 13
1/4” x 3/4”
Bolt
Lock Washer
Flat Washer
Flat Washer
1/4” Nut
Module
Module
Rail
Assembly Instructions, Top-of-Pole Mount for 10 Modules (TPM10) For Module Types C, D, E, F, & G, (Version 2, Rev E)