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IMPORTANT SAFETY INSTRUCTIONS
Mighty Mule 352
1
Because automatic gate openers produce high levels of force, consumers need to know the potential
hazards associated with improperly designed, installed, and maintained automated gate opener systems.
Keep in mind that the gate opener is just one component of the total gate operating system. Each
component must work in unison to provide the consumer with convenience, security, and safety.
This manual contains various safety precautions and warnings for the consumer. Because there are many
possible applications of the gate opener, the safety precautions and warnings contained in this manual
cannot be completely exhaustive in nature. They do, however, provide an overview of the safe design,
installation, and use of this product. CAREFULLY READ AND FOLLOW ALL SAFETY PRECAUTIONS,
WARNINGS, AND INSTALLATION INSTRUCTIONS TO ENSURE THE SAFE SYSTEM DESIGN,
INSTALLATION, AND USE OF THIS PRODUCT.
Precautions and warnings in this manual are identified with this warning symbol. The symbol
identifies conditions that can result in damage to the opener or its components, serious injury, or death.
Because GTO automatic gate openers are only part of the total gate operating system, it is the
responsibility of the consumer to ensure that the total system is safe for its intended use.
Disconnecting the Opener
1. Turn opener power switch OFF.
2. Remove hairpin clip, clevis pin, and
bushing from the front mounting point.
3. Remove the opener from the mount.
The gate can be opened and closed manually
when the opener is disconnected.
NOTE: Substitute a Pin Lock (FM133) for the clevis pin
on the front mount only of the gate opener to prevent
unauthorized removal of the opener from the gate
(see Accessory Catalog).
To Manually Open and Close the
Gate, Follow the Procedure Below:
CAUTION: The gate will move freely and uncontrolled when the gate
opener is removed from the gate. ONLY disconnect the opener when the
opener power switch is OFF and the gate is NOT moving.
Clevis Pin
Hairpin Clip
Gate Bracket
Front Mount
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CAUTION: Because the Mighty Mule gate
opener is battery powered, disconnect the opener
ONLY when the power switch on the opener is
turned OFF. Unplugging the transformer does not
turn power to the opener OFF.
IMPORTANT:
NEVER allow opener arm to hang by the
front mount - it will break from the arm weight.