Mighty Mule 371W/372W - Installation Manual - For a Single or Dual Gate Installation

Oct 29, 2026

Upload by noah

Installation manual for the Mighty Mule 371W/372W automatic gate operator, covering single-gate and dual-gate setups. Provides installation guidance such as mounting fence posts in concrete, routing low-voltage wire to the control box, using PVC conduit for power and protection, and specifying a 12-volt automotive or marine battery in a weatherproof housing. Includes safety and compliance information with UL 325 and detailed instructions to be read fully before installation and operation.

LanguageEnglish

CategoryHealthcare

FormatPDF

Pages27

Reading Time1 h 8 min

AccessFree to download

Please Read This First!

Important Safety Information

Manually Opening and Closing Gate

For the Installer and End User

Installing Warning Signs and Pedestrian Gates

Required Safety Precautions for Gates

Technical Specifications

Mighty Mule 371W/372W Gate Opener

Powering Options

Solar Panel and Gate Activity Chart

Before You Begin

Check Existing Gate Size and Material

PRINTER’S INSTRUCTIONS: MANUAL, INSTRUCTIONS, MM371W / MM37 1W- -P/N: 10022114 A INK: BLACK-MATERIAL: 20 LB . MEAD BOND-SIZE: 8.500” X 11 .000” -TOLERANCE: ± .125” -FOLD ING: ALBUM FOLD-BINDING: SADDLE ST ITCH-SCALE: 1-1 Installation Manual (For a single or dual gate installation) Single gate installation [MM371W] Gate Swings Evenly and Freely Fence Post Set in Concrete Run 1000' (max.) of low voltage wire to control box from transformer (wire not included) . PVC conduit (not included) to run second opener power cable under driveway. PVC conduit (not included) to protect wire from lawnmowers and weed eaters. 12 Volt automotive or marine type battery in weather proof housing (not included) . | | | --- | | | Dual gate installation MM372W] Example of Dual Gate finished installation (Installations vary slightly on different types of gates) This product meets the requirements of UL325 7th Edition, the standard for gate operator safety. Mighty Mule® is the retail brand of Nortek Security and Control, LLC. Copyright© 2019 Nortek Security and Control, LLC. 10022114 A | WARNING | | --- | | This equipment meets Underwriters Laboratory Standard 325 (UL 325) . However, gate equipment has hazards associated with its use and therefore by installing this product the installer and user accept
full responsibility for following and noting the installation and safety instructions. Failure to follow installation and safety instructions can result in hazards developing due to improper assembly. You agree to properly install this product and that if you fail to do so Nortek Security and Control, LLC, shall in no event be liable for direct, indirect, incidental, special or consequential damages or loss of profits whether based in contract tort or any other legal theory during the course of the warranty or at any time thereafter. The installer and/or user agree to assume responsibility for all liability and use of this product releasing Nortek Security and Control, LLC, from any and all liability. If you are not in agreement with this disclaimer or do not feel capable of properly following all installation and safety instructions you may return this product for full replacement value.
READ ALL INSTRUCTIONS CAREFULLY AND COMPLETELY before attempting to install and use this automatic gate operator. This gate operator produces a high level of force. Stay clear of the unit while it is operating and exercise caution at all times.
ALL AUTOMATIC GATE OPERATORS ARE INTENDED FOR USE ON VEHICULAR GATES ONLY. | Product Usage The Mighty Mule Gate Operator meets all of the safety requirements of a Class I Residential Vehicular Gate Operator and is intended for use solely with vehicular swing gates in single-family residential applications that meet the Class I category listed in the table below. Vehicular Gate Operator Class Categories Residential Vehicular Gate Operator-Class I: A vehicular gate operator (or system) intended for use in garages or parking areas associated with a residence of one-to-four single families. Commercial/General Access Vehicular Gate Operator-Class II: A vehicular gate operator (or system) intended for use in a commercial location or building such as a multi-family housing unit (five or more single family units), hotel, garages, retail store, or other buildings accessible by or servicing the general public. Industrial/Limited Access Vehicular Gate Operator–Class III: A vehicular gate operator (or system) intended for use in an industrial location or building such as a factory or loading dock area or other locations not accessible by or intended to service the general public. Restricted Access Vehicular Gate Operator – Class IV: A vehicular gate operator (or system) intended for use in an industrial location or building such as a factory or loading dock area or other locations not accessible by or intended to service the general public. Table of Contents Please Re

FAQs

What is the intended use of the Mighty Mule Gate Operator?

It is intended for use on vehicular swing gates in Class I residential single-family applications, and aligns with the Class I safety requirements stated in the manual’s class categories table.

What safety requirements are emphasized before installation?

The manual instructs installers and users to read all instructions carefully, stay clear during operation, and follow installation and safety guidance to avoid hazards from improper assembly.

Which wire and conduit routing steps are included in the installation guidance?

It specifies running up to 1000 feet of low-voltage wire from the transformer to the control box and using PVC conduit to route the second opener power cable under a driveway and to protect wiring from lawnmowers and weed eaters.

Oct 29, 2026

Upload by noah