
E-S 1000D Series Instruction Manual
IMPORTANT: Determining Correct Setback
2.9
A B Sum a
4 ¾” 5 ¼” 10 110°
5 ¼” 5 ¼” 10 ½ 100°
5 ½” 5 ½” 11 90°
Use one of the rows
to the right:
Variations to the ideal setback can be made, so
long as the total is less than the combined meas-
urements for the desired opening arc and the mo-
tor body is more than 2 inches away from the
gate in both the open and closed position.
(variations significantly reduces the length and
weight capacity of the operator)
Below are 2 common examples of setback mountings.
These are not the only options for mounting.
There are 4 factors to keep in mind when finding the setback mounting:
1) The (A) measurement is perpendicular from the gate in the CLOSED position.
2) There must be clearance for your gate opener to attach to the gate in the closed position. This is
most commonly an issue on columns. Re-positioning of the hinges or Push-To-Open operation may be
required to achieve clearance.
3) The brackets do not and must not move after installation.
4) The "L" shape brackets can be mounted anywhere on the post or column. They can be mounted on
a separate post or fence as well. The only factor of importance is that when mounting of the brackets is
done the hole in the boomerang bracket that the gate opener mounts on matches the setback on this
page.
It is best to C-Clamp brackets on and test arm movement clearance before permanently attaching
them.
To determine the position of the gate mounting bracket (above is for the post mounting bracket) refer
to step 13 in the section “Installation of operator - PTO”
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