Installation manual

PLEASE READ THIS FIRST!
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Thank you for purchasing a Mighty Mule 250—GTO's "do-it-yourself" automatic single gate swing opener! When correctly
installed and properly used, your Mighty Mule 250 will give you many years of reliable service. Please read the following
information and watch the enclosed videotape to ensure you have the correct system for your particular needs and enable you
to properly install your Mighty Mule 250.
The Mighty Mule 250 is designed for installation on a pull-to-open single leaf swing gate (a gate that opens into the
property). The gate must not exceed 12 feet in length nor weigh more than 250 pounds (please see Technical Specifications
on page 10). The gate must be level, plumb and swing freely on its hinges (NO WHEELS). The Mighty Mule 250 can be
used on vinyl, aluminum, chain link, farm tube, panel and wrought iron gates. Use on solid surface gates is not
recommended. Solid surface gates have a high resistance to wind. If the wind is strong enough it could damage the gate
opener.
The Mighty Mule 250 accommodates accessories such as; extra transmitters, digital keypads, push buttons, intercoms,
telephone entry, and other contact (edges) and non-contact (photo beams) safety devices. These optional accessories (see the
Accessory Catalog on page 30) are available at most authorized Mighty Mule retail stores or authorized GTO service centers.
Your store should be able to special order any accessory not in stock. If your store cannot special order accessories, please
call the GTO Sales Department at 1-800-543-GATE (4283).
The Mighty Mule 250 features inherent obstruction sensing. This safety feature makes the gate stop and reverse direction
when it comes in contact with an obstruction.
PLEASE NOTE—The Mighty Mule 250 will NOT meet the requirements of the following applications:
Swing gates longer than 12 feet or weighing more than 250 pounds;
Slide gates;
Dual gates;
Push-To-Open gates (gates that open out from property);
Solar applications;
Gates that need automatic locks;
Heavy duty or commercial uses;
Gate opening sensors;
®
E-Z GATE OPENER
250
1-800-543-GATE (4283) • www.mightymule.com
UL325 SERIES
™
IMPORTANT:
The Mighty Mule 250 E-Z Gate Opener will not function until the transformer is installed and the system is activated
following the steps on pages 19-22.
The Mighty Mule 250 circuitry is designed to only operate with the transformer connected to the opener and plugged into
an AC outlet. The battery in the Mighty Mule 250 will provide approximately 12-15 open and close cycles during a power
outage. If the transformer is disconnected or the AC power is interrupted for a prolonged period of time, the battery will
eventually drain down and the opener will not operate. When the power is restored it could take up two (2) hours to fully
recharge the battery. Limited use may begin with 15 minutes after AC power is restored.
Following these instructions carefully and in order will assure that your Mighty Mule 250 will give you many years of
reliable service.
If you have a requirement for one or more of these applications, please call GTO at (800) 543-GATE [4283] or [phone]
for assistance.