Nortek Security & Control Mighty Mule HD272 User manual

Copyright©2019 Nortek Security & Control, LLC 10022516 A
HD272
This product meets the requirements of UL325, the standard for gate operator safety.
Installation Manual
Example of nished installation
(installations vary slightly on different types of gates)
120 Volt indoor
Transformer
(surge protector
not supplied) Horizontal Support
Gate Swings Evenly and Freely
Hung Firmly and Plumb
Post Bracket
Control Box
Fence Post Set in Concrete
Run 1000' (max.) of low
voltage wire to control
box from transformer
(wire not included).
Power Cable
Gate Bracket
Warning Sign
First Gate Opener
Post Bracket
Second Gate Opener
Gate Bracket
Horizontal Support
PVC conduit (not included)
to run second opener power
cable under driveway.
Mighty Mule® is the retail brand of Nortek Security & Control, LLC
PRINTER’S INSTRUCTIONS:
INSTR, INSTL, HD272 - P/N: 10022516 A - INK: BLACK - MATERIAL: 20 LB. MEAD BOND - SIZE: 8.500” X 11.000” - TOLERANCE: ± .125” - FOLDING: ALBUM FOLD - BINDING: SADDLE STITCH - SCALE: 1-1
NSC Sales: 800-543-4283 • Fax [phone]
NSC Technical Service 800-543-1236
For Online Technical Support 24 hour/day, 7 day/week visit www.mightymule.com
For more information on Mighty Mule’s full line of Automatic Gate Operators and
Access Controls visit www.mightymule.com

BHD272 Installation Instructions HD272 Installation Instructions i
Table of Contents
Please Read This First!..................................................................................................... ii
Manually Opening and Closing Gate............................................................................ iii
Important Safety Information ........................................................................................ iii
For the Installer and End User ...................................................................................... iv
Installing Warning Signs and Pedestrian Gates .......................................................... viii
Required Safety Precautions for Gates ......................................................................... ix
Technical Specications .................................................................................................1
Before You Begin................................................................................................................2
Solar Panel and Gate Activity Chart ...............................................................................2
Parts List – Opener and Mounting Hardware .................................................................4
Tools and Materials.........................................................................................................5
Installation Overview for Pull-To-Open Gates...............................................................6
Installation of the FIRST Gate Opener............................................................................7
Install Post Bracket Assembly and Gate Bracket............................................................8
Attach Opener Arm.......................................................................................................10
Install the Closed Position Stop Plates .........................................................................11
Mount the Control Box.................................................................................................13
Connecting the Battery .................................................................................................14
Connect Opener Power Cables .....................................................................................15
Connect the Transformer ..............................................................................................15
Set the CLOSED Position Limit for PULL-TO-OPEN Installation.............................18
Setting Dual Sense Detection and Auto Close Timer ..................................................19
MMT103 Transmitter ...................................................................................................20
Push-To-Open Installation Instructions.........................................................................21
Solar Panel Instructions ..................................................................................................23
Connecting Additional Devices .......................................................................................24
Control Box Cover - Final Step ...................................................................................25
Troubleshooting Guide ....................................................................................................26
Maintenance .....................................................................................................................27
Warranty Repair............................................................................................................27
Accessories ........................................................................................................................28
Gate Operator Installation Checklist.............................................................................30
Notes ..................................................................................................................................31
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.
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 & Control, LLC, shall in no event be liable
for direct, indirect, incidental, special or consequential damages or loss of prots 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 &
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.
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 (ve 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.

ii HD272 Installation Instructions HD272 Installation Instructions iii
BEFORE YOU BEGIN TO INSTALL YOUR AUTOMATIC GATE OPERATOR:
Watch the enclosed video and read these instructions carefully and completely to become
familiar with all parts and installation steps. The video is only designed as an overview of the
installation procedure. You must read the installation manual for detailed instructions on gate
operator safety and proper use of the gate operator.
NOTE: Substitute a Pin Lock for the clevis pin on the front mount
of the gate operator to prevent unauthorized removal of the operator
from the gate (see accessory pages in back of this book).
Please Read This First!
Thank you for purchasing a Mighty Mule Gate
Operator—the "do-it-yourself" automatic gate
operator! When correctly installed and properly used,
your Mighty Mule Gate Operator will give you many
years of reliable service. Please read the following
information and watch the enclosed video to ensure
you have the correct system for your particular
needs. Furthermore, this manual and the DVD will
enable you to properly install your Mighty Mule Gate
Operator.
The HD272 Operator is designed for installation on
a pull-to-open dual leaf gates (gates that open into
the property). By purchasing the accessory brackets,
the Mighty Mule Gate Operator can accommodate a
push-to-open dual leaf gates (gates that open out from
the property). The gate must not exceed 12 feet in
length and weigh more than 300 pounds (please see
Technical Specications on page 1). The Mighty Mule
Gate Operator can be used on vinyl, aluminum, chain
link, farm tube, and wrought iron gates. Use on solid
surface gates is not recommended. Solid surface gates
have a high resistance to the wind. If the wind is strong
enough, the operator will obstruct and stop, and may
damage the opener.
The Mighty Mule Gate Operator accommodates
extra transmitters, digital keypads, solar panels,
push buttons, automatic gate locks, and other access
control products. These optional accessories (see the
Mighty Mule Accessory Catalog) are available at most
stores. Your store should be able to special order any
accessory not in stock. If your store cannot special
order accessories, please call the Mighty Mule Sales
Department (800-543-GATE).
The Mighty Mule Gate Operator features Dual Sense
Technology™. This feature makes the gate stop and
reverse direction when it comes in contact with an
obstruction. This is factory set to the most sensitive
setting and must be adjusted during installation.
The Mighty Mule Gate Operator also has an adjustable
auto-close feature. After the gate reaches the fully
open position, it can be set to remain open up to 120
seconds before automatically closing. Pressing the
transmitter button at any time after the gate opens fully
will cause it to close immediately. OFF is the factory
setting; meaning the gate will stay open until you press
the transmitter (or keypad, etc.) again.
Go to www.mightymule.com or call [phone]
to nd a retailer near you. For information about our
professional line of gate operators and accessories,
visit www.linearproaccess.com.
CAUTION
The gate will move freely and uncontrolled when the gate operator is removed from the gate. ONLY disconnect
the operator when the control box power switch is OFF and the gate is NOT moving.
Because automatic gate operators produce high levels
of force, consumers need to know the potential hazards
associated with improperly designed, installed, and
maintained automated gate operator systems. Keep in
mind that the gate operator is just one component
of the total gate operating system. Each component
must work in unison to provide the end user with
convenience, security, and safety.
This manual contains various safety precautions and
warnings for the installer and end user. Because there
are many possible applications of the gate operator,
the safety precautions and warnings contained in
Disconnecting the Operator
1. Turn control box power switch OFF.
2. Remove hairpin clip, clevis pin, and bushing from either the
front or rear mounting point.
3. Remove the operator from the mount.
The gate can be opened and closed manually when the operator is
disconnected.
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.
Warnings in this manual are identied with
this warning symbol. The symbol identies
conditions that can result in damage to the operator or
its components, serious injury, or death.
Manually Opening and Closing Gate
Because Mighty Mule automatic gate operators are only part of the total gate operating system, it is the
responsibility of the installer and end user to ensure that the total system is safe for its intended use.
Important Safety Information
Clevis Pin
Hairpin Clip
Gate Bracket
Front Mount

iv HD272 Installation Instructions HD272 Installation Instructions v
Pull-To-Open Application
Entrapment Zones for a
Pull-To-Open Application
Gate in the
Open Position
Gate in the
Open Position
ZONE 2
ZONE 3
ZONE 4
ZONE 5
Driveway
ZONE 1
ZONE 2
ZONE 4
ZONE 5
ZONE 3
Moving Gate
Area
Moving Gate
Area
Driveway
10'10'
10'10'
10'10'
NEVER INSTALL
any control device
within gray area
II. During Installation
1. Install the gate operator on the inside of the
property and fence line. DO NOT install an
operator on the outside of the gate where the
public has access to it.
2. Be careful with moving parts and avoid close
proximity to areas where ngers or hands could
be pinched.
3. Devices such as contact sensors (sensing
edges) and non contact sensors (photo beams)
provide additional protection against vehicular
damage.
4. If push buttons or key switches are installed, they
should be within sight of the gate, located at least
10 feet from any moving part of the gate (see
diagram below). Never install any control device
where a user will be tempted to reach through
the gate to activate the gate operator.
5. Do not activate your gate operator unless you can
see it and can determine that its area of travel is
clear of people, pets, or other obstructions. Watch
the gate through its entire movement.
6. Secure outdoor or easily accessed gate operator
controls in order to prohibit unauthorized use of
the gate.
For the Installer and End User
Typical Entrapment Zones are shown in the diagrams on page iv:
Zone 1 – leading edge of the gate and the fence post.
Zone 2 – between the gate and the gate post.
Zone 3 – the path of the gate.
Zone 4 – the space between the gate in the open position and any object such as a wall, fence, tree, etc.
Zone 5 – pinch points between the operator and gate.
Important Safety Information
I. Before Installation
1. Verify this operator is proper for the type and size of gate,
frequency of use and class of the gate system.
2. Make sure the gate has been properly installed and swings
freely in both directions. Repair or replace all worn or
damaged gate hardware prior to installation. A freely moving
gate will require less force to operate and will enhance the
performance of the entrapment protection devices used with
the system (see Prepare the Gates on page 3).
3. Review the operation of the system to become familiar with
its safety features. Understand how to disconnect the operator
for manual gate operation (see page iii).
4. The gate and operator installation must comply with any
applicable local codes.
5. This gate operator is intended for vehicular gates only. A
separate entrance or gate must be installed for pedestrian use
(see page viii).
6. Always keep people and objects away from the gate and its
area of travel. No one should cross the path of a moving gate.
7. Identify all of the entrapment zones for the type of
installation. An entrapment zone is an area around the
automatic gate system where a person or object could be
caught that increase the risk of injury. Entrapment zones must
be eliminated, guarded or protected.
8. When designing a system that will be entered from a highway
or main thoroughfare, make sure the gate system is placed far
enough from the road to prevent trafc congestion.
For the Installer and End User
Important Safety Information
WARNING
To reduce the risk of injury or death:
1. READ AND FOLLOW ALL INSTRUCTIONS.
2. Never let children operate or play with gate controls. Keep
the remote control away from children.
3. Always keep people and objects away from the gate. NO
ONE SHOULD CROSS THE PATH OF THE MOVING
GATE.
4. Test the gate operator monthly. The gate MUST reverse on
contact with a rigid object or stop when an object activates
the non-contact sensors. After adjusting the force or the limit
of travel, retest the gate operator. Failure to adjust and retest
the gate operator properly can increase the risk of injury or
death.
5. Use the manual/emergency release only when the gate is not
moving.
6. KEEP GATES PROPERLY MAINTAINED. Read the
user’s manual. Have a qualied service person make repairs
to gate hardware.
7. The entrance is for vehicles only. Pedestrians must use
separate entrance.
8. The gate must be installed in a location that provides
adequate clearance between it and adjacent structures
when opening and closing to reduce the risk of entrapment.
Swinging gates must not open into public access areas.
9. SAVE THESE INSTRUCTIONS.

vi HD272 Installation Instructions HD272 Installation Instructions vii
For the Installer and End User
Important Safety Information
Mighty Mule gate operators utilize Dual Sense
Technology™ entrapment protection. Dual Sense
Technology™ is built into every Mighty Mule and
provides redundant methods of entrapment protection
for open and close gate directions.
In addition to Dual Sense Technology, every Mighty
Mule gate controller has provisions for the connection
of additional obstruction detection devices such as
sensing edges and photo beams.
These devices may be located where there is an
increased risk of obstruction. Refer to the diagram
below.
One or more edge sensors may be located at the
leading edge, bottom edge, and post edge, both inside
and outside of a vehicular swing gate system.
Wiring to sensors must be located and arranged so the
wiring between the sensor and the gate operator is not
subjected to mechanical damage.
A wireless sensor such as one that transmits radio
frequency (RF) signals to the gate operator for
obstruction protection functions shall be located
where the transmission of the signals is not blocked or
impeded by building structures, natural landscaping or
similar objects.
Entrapment Alarm
The Mighty Mule Automatic Gate Operator is designed to stop and reverse the gate when the gate comes in contact with
an obstruction. Additionally, these operators are equipped with an audio entrapment alarm which will activate if the unit
obstructs twice while opening or closing. This alarm will sound for a period of 5 minutes, or until the operator receives
an intended signal from a hard wired entry/exit source (e.g. push button control or keypad) and the gate returns to a fully
open or fully closed position. Turning the power switch on the control box OFF and back ON will also deactivate the
alarm. Wireless controls such as transmitters and wireless keypads will not deactivate the alarm.
Entrapment and Obstruction Protection
Mighty Mules’ Dual Sense Technology™ provides entrapment protection when properly adjusted. Since all installations
are different, you may need to add photo beams or sensing edges to help prevent damage to vehicle or other items that
could be hit by a moving gate.
Vehicular GateVehicular Gate
Photo Beam
(recommended, not included)
Photo Beam
(recommended, not included)
Sensing Edges
(recommended, not included)
Sensing Edges
(recommended, not included)
Leading Edges
of gates
III. After Installation
1. Attach the warning signs (included) to each side
of the gate to alert the public of automatic gate
operation. It is your responsibility to post warning
signs on both sides of your gate. If any of these
signs or warning decals becomes damaged,
illegible, or missing, replace them immediately.
Contact NSC for free replacements.
2. The gate is automatic and could move at any
time, posing serious risk of entrapment. No one
should be in contact with the gate when it is
moving or stationary.
3. Do not attempt to drive into the gate area while
the gate is moving; wait until the gate comes to a
complete stop.
4. Do not attempt to “beat the gate” while the gate is
closing. This is extremely dangerous.
5. Do not allow children or pets near your gate.
Never let children operate or play with gate
controls. Keep the remote control away from
children and unauthorized users; store controls
where children and unauthorized users do not
have access to them.
6. KEEP GATE SYSTEMS MAINTAINED.
Always turn power to operator OFF before
performing any maintenance. See page 28 for
maintenance procedures.
7. To operate this equipment safely, YOU must
know how to disconnect the operator for manual
gate operation (see page iii). If you have read the
instructions and still do not understand how to
disconnect the operator, contact the Mighty Mule
Service Department.
8. Disconnect the operator ONLY when the power
is TURNED OFF and the gate is NOT moving.
9. Make arrangements with local re and law
enforcement for emergency access.
10. Distribute and discuss copies of the
IMPORTANT SAFETY INFORMATION
section of this manual with all persons
authorized to use your gate.
11. IMPORTANT: Save these safety instructions.
Make sure everyone who is using or will be
around the gate and gate operator are aware
of the dangers associated with automated gate
systems. In the event you sell the property
with the gate operator or sell the gate operator,
provide a copy of these safety instructions to
the new owner.
Should you need a replacement manual, a copy
can be obtained by downloading one from the
Mighty Mule web site (www.mightymule.com),
by contacting NSC by calling 1-800-543-4283
and requesting a duplicate copy. One will be
provided to you.
For the Installer and End User
Important Safety Information

viii HD272 Installation Instructions HD272 Installation Instructions ix
Warning SignWarning Sign
Pedestrian Gate
Pedestrian Gate Lock
(recommended, not included)
Vehicular GateVehicular Gate
7 foot
minimum
Important Safety Information
Warning signs alert people of automatic gate operation and are required when installing Mighty Mule Automatic
Gate Operators. A minimum of two WARNING SIGNS must be installed in the area of the gate. Each sign is to be
visible by persons located on the side of the gate on which the placard is installed.
The operator is intended for installation only on gates used for vehicles. Pedestrians must be supplied with a
separate access opening. The pedestrian access opening shall be designed to promote pedestrian usage. Locate
the gate such that persons will not come in contact with the vehicular gate during the entire path of travel of the
vehicular gate.
We recommend using the NSC Pedestrian Gate Lock (Call the NSC Sales Department at 800-543-4283) for
controlled access.
Installing Warning Signs and Pedestrian Gates
Warning Signs
The gate operator is provided with 2 safety warning signs.
The signs MUST be installed on the front and back of the
gate where they will be visible in the area of the gate.
Permanently secure each warning sign to the gate.
Immediately replace a damaged or missing warning sign.
!
Important Safety Information
Required Safety Precautions for Gates
These warning labels should be found at the locations specied below. If any of them are missing, immediately
contact NSC for replacements.
Product identication label (1) installed on the side of the Control box.
Labels (1) installed on the front of control box
Control arm label (2) installed on operator arm
mightymule.com
MM571W
10019674A
1. KEEP CLEAR! Gate may move at any time.
2. Read all SAFETY INSTRUCTIONS in the user’s manual.
3. Do not allow children to operate gate or play in gate area.
4. This gate is for vehicles only. Pedestrians must use separate entrance.
Moving gate can cause injury or death!
1. TENEZ-VOUS LOIN! La barrière peut se déplacer à tout moment.
2. Lisez toutes les instructions de sécurité dans le manuel de l'utilisateur.
3. Ne laissez pas les enfants utiliser la barrière ou jouer à proximité de la barrière.
4. Cette barrière est uniquement réservée aux véhicules. Les piétons doivent
utiliser une autre entrée.
AVERTISSEMENT
WARNING
La barrière en mouvement peut provoquer des
blessures graves ou la mort!
10019665A
GEN7 SERIES – DC Swing Gate Operator
P/N MM571W
Conforms to UL STD 325 • Certied to CSA STD C22.2 No.247
Maximum Gate: 300 lb. (136 kg); 12 ft. (3.65 m)
Voltage: 12 Vdc; Frequency: 0 Hz; Power: 25 W
Class I Vehicular Gate
S/N: YYYYMMDDx0000
Nortek Security & Control – Carlsbad, CA USA
E472888

Solar Panel and Gate Activity Chart
1HD272 Installation Instructions HD272 Installation Instructions 2
MIGHTY MULE HD272 DUAL GATE OPENER
_____________________________________ DRIVE _____________________________________
• Low friction screw drive (linear actuator) rated for -5 °F to +160 °F (-20 °C to +71 °C).
• Powered by a 12 V motor with integral case hardened steel gear reducer. Motor speed reduced to 260 rpm. Generates
520 inch lb. of torque at 12 V.
• Maximum opening arc of 110°. Approximate opening time (90°): 18 seconds, depending on weight of gate.
_____________________________________ POWER _____________________________________
• The system is powered by a 12 Vdc automotive, lawn tractor or marine battery (required but not included).
• Battery charge is 120Vac to 16Vac output through the control board] or by optional Solar Panels; the panel should
generate minimum of 10 Watts (600 mA). A diode on the control board prevents battery discharge. IMPORTANT:
Never use both transformer and solar panel— this will damage the battery and control board.
• One (1) blade-style fuse is rated for 15A.
NOTE: The transformer should not be directly connected to any battery. Do not replace fuses with
higher ampere rated fuses; doing so will void your warranty and may damage your control board.
_____________________________________ CONTROL _____________________________________
• Microprocessor-based control board is set for dual leaf, pull-to-open gate installations. Jumper can be removed to
accommodate an optional kit for push-to-open gates.
• Control board has temperature compensated circuits.
• Auto-memorization of digital transmitter code.
• Opener length with push-pull tube fully retracted is 26 3/8", mounting point to mounting point. Maximum stroke is 13".
• Adjustable auto-close timer (OFF to 3–120 seconds), and Dual Sense Technology™ stall force).
• Power terminal block accommodates a transformer or solar panels.
• Accessory terminal block fully compatible with all Mighty Mule access controls.
• Control board allows connection of edge sensors and photoelectric sensors.
• Audio entrapment alarm sounds if unit encounters an obstruction twice while opening or closing.
_____________________________________ OPERATIONAL CAPACITY _____________________________________
• Maximum gate size: 300 lbs., 12' long.
NOTE: BALL BEARING HINGES SHOULD BE USED ON ALL GATES WEIGHING OVER 250 LB.
Technical Specifications
1. Determine Charging Options for Battery: Transformer OR Solar
IMPORTANT
• The Mighty Mule 272 is designed and intended for use with a 12 Volt automotive, marine or lawn tractor battery. The
battery must be placed inside a weatherproof case and located within 6' of the control box. The 8' battery harness
connects the battery to the control board.
• The battery charge is maintained by the 16 Volt transformer included OR optional solar panel(s). The transformer OR
solar panel is connected to the control board using low voltage, 16 gauge, dual conductor, multi-stranded, direct burial
wire [RB509] (page 28).
• All low voltage wire used with the Mighty Mule Gate Opener must be 16 gauge dual conductor, multi-stranded, direct
burial wire.
• The transformer is intended for indoor use. If the transformer can only be plugged into an outside electrical outlet, a
weatherproof cover or housing must be used.
• If your gate is more than 1000' from an AC power source, you will need to use a solar panel charging kit (minimum 10
watts) . Refer to the Solar Panels and Gate Activity Chart below.
The table and map illustrate the
maximum number of gate cycles
to expect per day in a particular
area when using from 10 to 20 watts of solar
charging power prior to the battery depleting to a
state where the unit will not function. The gures
shown are for winter (minimum sunlight) and do
not account for the use of any accessory items.
Accessories connected to your system will
draw additional power from the battery and
will require additional solar panels.
A deep cycle marine battery is recommended for
solar and/or high trafc applications.
NOTE: UP to 250 ft. of dual conductor, 16
gauge, multi-stranded wire may be used to allow
installation of solar panels in direct sunlight.
See page 23:
10 Watt Solar Panel [FM123]
Dual Gate
Winter Ratings Zone 1 Zone 2 Zone 3
10 Watts 8 16 26
20 Watts 14 28 38
NEVER USE TRANSFORMER AND SOLAR PANEL(S) AT THE SAME TIME!
It will damage the control board!
Before You Begin

3HD272 Installation Instructions HD272 Installation Instructions 4
2. Check Direction of Gate Swing
The Mighty Mule 272 is designed for PULL-TO-OPEN
installations. PUSH-TO-OPEN installations require two
Push-To-Open brackets [FM148]. Push-to-Open Installation
Instructions begin on page 21.
3. Prepare the Gates
• Gates must be plumb, level, and swing freely on their
hinges.
• Wheels must NOT be attached to the gates.
• The gates must move throughout their arcs without
binding or dragging on the ground.
• Note that gates over 250 lb. should have ball bearing hinges with grease ttings.
• The gate post should be secured in the ground with concrete so it will minimize twist or ex when the opener is activated.
• The addition of a horizontal or vertical cross member (if one is not already in place) to provide a stable area for mounting
the gate bracket is also important.
• Trench the driveway in order to lay PVC conduit for the second opener power cable (see illustration on page 6).
Your Property Your Property
Pull-To-Open
(arm retracts to open)
Push-To-Open
(arm extends to open)
Horizontal Cross Member
Vertical Cross Member
E
A
B
C
D
F
A – Level D – Posts Secured in Concrete
B – Plumb E – Centerline Mounting
C – Free Swinging F – Good Working Hinges
Gate Grounding (recommended)
• Shorter wire (6 AWG) is better, 1 to 2 feet recommended.
• Bolt ring terminal at end of cable 4 - 6 inches above
ground level.
NOTE: No grounding system absolutely protects against
lightning strikes. If installed correctly, a grounding system
will help minimize damage to your gate opener.
Parts List – Opener and Mounting Hardware
Hairpin Clip (4)
3/8" x 1-1/2" Clevis Pin (4)
5/16" x 1-1/4" Bolt (2)
3/8" x 1-1/4" Bolt (2)
3/8" x 2-3/4" Bolt (4)
3/8" x 8" Bolt (4)
8" Nylon Cable Tie (20)
3/8" Washer (14)
5/16" Washer (2)
3/8" Nut (10)
5/16" Lock Nut (2)
Hardware Bag Contents
Gate Opener (2)
Gate Bracket (2)
Post Pivot Bracket (2)
3/8" Lock Washer (10)
Literature Kit
Post Bracket (2)
Closed Position
Stop Plate (2)
2" Mounting Screw (3)
®
E-Z GATE OPENER
Transformer (1)
RB503
Battery Wire
Harness (1) with
15A fuses (2) Warning Signs (2)
Transmitter(2)
MMT103
1. KEEP CLEAR! Gate may move at any time.
2. Do not allow children to operate gate or
play in gate area.
3. This gate is for vehicles only. Pedestrians
must use a separate entrance.
Moving Gate Can Cause
Injury Or Death
WARNING
!
Control Box (1) Battery Box (1) Battery (1)
Copper clad ground rod
(not included)
Ground
Ground
2 Inches or
Less above
ground
Copper ground
rod clamp
Copper Single
Conductor Lug
3/16” Drilled
Pilot Hole
6 ft. deep
or more
Metal gate post
Metal Gate Post
12awg or Larger
Gate Opener
Control Box
2 ft. or Less
from post

5HD272 Installation Instructions HD272 Installation Instructions 6
Tools and Materials
Tools Needed:
• Power Drill
• Open End Wrenches — 1/2" and 9/16"
• Adjustable Wrench
•
3/8" Drill Bit
• Hacksaw or Heavy Duty Bolt Cutters
• Small Flat Bladed Screwdriver
• Large Phillips Screwdriver
• Tape Measure
• Level
• Wire Strippers
• C-Clamps — small, medium, and large
• Center Punch
• Hammer (for center punch)
• Extra person will be helpful
Materials You May Need for the Installation:
These items are NOT included with the gate opener kit. Some of these items can be purchased or special ordered through
participating retailers. Please see page 28 or www.mightymule.com
• 12 VDC automotive/lawn tractor or deep cycle marine battery is required to power the opener. (page 2)
• Low voltage wire [RB509] will be needed to run from the transformer to the opener control board; length depends upon the
distance between the transformer power supply and the control box. (page 15 & page 22)
• If your gate is more than 1000' away from an AC power source you will need to use at least one 10 watt Solar Panel [FM123]
to charge the 12 Volt battery. (page 2 & page 28)
• PVC conduit for protecting in ground wiring. (page 6)
• Push-To-Open Brackets [FM148] are required if gates open out from property. (page 3 & page 22)
• Materials to reinforce thin walled tube or panel gates. (page 7)
• Depending on the type of gate, a horizontal cross member or mounting plate may be needed to mount the front of the opener
and gate bracket to the gate. (page 3 & page 7)
• Some installations may require mufer clamps for the gate bracket, to prevent drilling into thin wall tube gates. (page 7)
• (2)16 AWG crimp on fork lugs. (page 17)
• Surge protection for transformer. (page 18)
• Weather proof outlet and cover is required if transformer is plugged into outside outlet. (page 18)
• Some types of installations require U-Bolts for closed position stop plate. (page 11)
• A low prole ground stop is required for dual gates when using the Mighty Mule gate lock. (page 11)
NOT ALL TOOLS ARE SHOWN
If the gate post is larger than
6" the Post Pivot Bracket can
be removed and the center
hole of the Post
Bracket can be the
mounting point for
the gate opener.
Center hole of
post bracket
Installation Overview for Pull-To-Open Gates
PUSH-TO-OPEN installation instructions begin on page 21.
Example of an installation on a chain link fence:
IMPORTANT: To achieve the most efcient
leverage for the gate opener and ensure long
trouble free service, the gate opener needs to be
installed within the following parameters.
The diagram at left shows the optimum position
for gate opener arm in relation to the gate in the
open and closed positions.
Be sure the position of the gate opener and
brackets allows for 1" of clearance between the
gate and the opener in both the open and closed
position, at the same time maintaining a stroke
distance of 7" to 13" from center of hole in the
end of the retracted opener arm to the center of
the hole in the gate bracket with the gate in the
closed position.
36' power cable allows the control
board to control the SECOND gate
opener (run in PVC conduit)
You will need to trench across the
driveway in order to lay conduit for
the second opener power cable.
120 Volt indoor
Transformer
(surge protector
not supplied)
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 protect wire from lawn
mowers and weed eaters.
Gate Swings Evenly and Freely
Hung Firmly and Plumb
Control Box
First Opener Second Opener
Closed Position Stop Plates
Gate Bracket
1" minimum
Gate in the
OPEN POSITION
Pinch Area
Gate in the
CLOSED POSITION
Pinch Area
1" minimum
7 to 13”
stroke

7HD272 Installation Instructions HD272 Installation Instructions 8
IMPORTANT: Determine which side of the driveway you will mount the control box. From this point on, the gate and gate
opener on the same side as the control box will be referred to as the FIRST gate and gate opener. The gate and gate opener on the
opposite side of the driveway from the control box will be referred to as the SECOND gate and gate opener.
We recommend you position the opener near the centerline of the gate to keep the gate from twisting and exing and to avoid
back splash from rain water.
The Post Bracket Assembly
The position of the post bracket assembly determines the
leverage and efciency of the opener. The post bracket
assembly position also sets the clearance between the
opener and the gate in the open and closed positions.
The post bracket works well for installations on round
and square fence posts. Because the post bracket
carries the entire thrust of the active opener, bolts must
completely penetrate the post.
On wood posts, place a metal plate or washer (not
supplied) between the nuts and the post to prevent the
thrust of the opener from pulling the bolts and washers
out of the wood.
The post pivot bracket may not be necessary on posts
larger than 6" in diameter (see page 6). Fence posts
smaller than 6" in diameter or 6" square should be made
of metal instead of wood to remain stable while the
opener is moving the gate.
Reinforcing Gates for the Gate Brackets
We recommend using a mufer clamp, wood, or metal, to reinforce thin-walled tube gates, or wood to reinforce panel gates as
shown. These reinforcement methods will prevent damage to the opener and gate. Additional hardware may be needed depending
on the installation.
Mufer Clamp for
Gate Bracket
Wood or Metal
Reinforcement
1" x 6" Wood
Reinforcement
Post
Bracket
Post
Pivot Bracket
Metal Plate
Wooden Post
Post
Bracket
Post
Pivot Bracket
Metal Plate
Wooden Post
Post Pivot
Bracket
Post
Bracket
Post Bracket
Assembly
Thin Walled
Tube Gate
Gate Bracket
Muffler Clamp
(not supplied)
Gate Bracket
Wood or Metal
Reinforcement
(not supplied)
Gate
Bracket
Panel
Gate
1" x 6"
Wood
Reinforcement
Installation of the FIRST Gate Opener Install Post Bracket Assembly and Gate Bracket
Step 1
Insert the 3/8" x 11/4" bolt through the center hole of the post brackets and post
pivot bracket. Secure with a 3/8" washer, 3/8" lock washer and 3/8" nut. DO NOT
overtighten the nut (the post pivot bracket will have to be adjusted later).
Step 2
Attach post bracket assembly to the rear mount of the opener with a clevis pin.
Secure the clevis pin with a hairpin clip.
Step 3
Attach gate bracket to the front mount of the opener with a clevis pin. Secure the
clevis pin with a hairpin clip.
Step 4
With the gate in the fully open position and the opener arm fully retracted,
adjust the post bracket assembly and gate bracket until the opener is level. While
holding the opener level, use C-clamps to temporarily secure the post bracket
assembly and gate bracket to the post and gate.
3/8" x 11/4" Bolt
3/8" Nut
Post Pivot Bracket
Post Bracket
Post Bracket Assembly
3/8" Washer
3/8" Lock Washer
Clevis Pin
Hairpin Clip
Post Bracket Assembly
Rear Mount
Opener
Clevis
Pin
Hairpin Clip
Gate Bracket
Front Mount
Fence Post
Gate in Open Position
Opener Arm Fully Retracted
LEVEL horizontal cross member
Post Bracket Assembly
Gate Bracket
Level Opener

9HD272 Installation Instructions HD272 Installation Instructions 10
Step 5
Be sure the position of the gate opener and brackets
allows for 1" of clearance between the gate and the
opener in both the open and closed position, while
at the same time maintaining a stroke distance of 7"
to 13" from center of hole in the end of the retracted
opener arm to the center of the hole in the gate bracket
with the gate in the closed position. This mounting
position will give the opener the most efcient
leverage point for operation and provides the least
possible pinch area.
Step 6
After verifying that you have the best position for
the post pivot bracket in the open position, insert the
5/16" x 11/4" bolt through the aligned holes of the
post bracket and post pivot bracket to hold it in place.
Remove the clevis pin from the front mount and
while supporting the gate opener, swing the gate
and gate opener to the closed position. Again, check
the clearance and be sure that the gate opener is not
binding at the post pivot bracket.
If you don't have the required clearance, or if the gate
opener is binding on the post pivot bracket, remove the
5/16" x 11/4" bolt and readjust the post pivot bracket.
Reinstall the bolt and related hardware as shown in the
diagram to the right.
TIP: Turn the post pivot bracket over for more hole
alignment options. You can also move the entire post
bracket assembly to different positions on the post.
If you are mounting to a post or column larger than
8" or you can not achieve the mentioned clearances,
you can:
1) eliminate the post pivot to try and achieve the proper clearances.
2) install the unit as a push to open (bracket not included).
3) re-hang the gate within 4" inches of the back corner of the column.
NOTE: Re-hanging the gate, depending on the construction of a column, may
require additional expertise and tools/materials.
Step 7
When the post bracket assembly is in the optimum position, reattach the opener to
the gate bracket (gate in the open position); recheck the gate opener level; make sure
the brackets are clamped securely.
Step 8
Mark reference points for bolt holes on the post through
middle of post bracket assembly slots. Mark reference points
for bolt holes on the gate cross member through middle
of gate bracket slots. After marking your reference points,
remove the opener and brackets from the fence and gate.
1" minimum
Gate in the
OPEN POSITION
Pinch Area
Gate in the
CLOSED POSITION
Pinch Area
1" minimum
7” to 13"
stroke
Be sure gate opener
and bracket don't bind.
5/16" x 11/2"
Bolt
Post Pivot
Bracket
Determine Best
Hole Alignment
to Achieve
1" Clearance
Post Bracket
5/16" Lock Nut
5/16" Washer
Post Bracket
Assembly
Mark fence post through
middle of bracket slots
and drill 3/8" holes through
post.
Gate In Open Position
Arm Fully Retracted
LEVEL horizontal cross member
Mark cross member through middle of gate
bracket slots and drill 3/8" holes through cross member.
Step 9
Drill 3/8" holes through post as marked. Fasten post bracket assembly to the
fence post using two 3/8" x 8" bolts, washers, lock washers and nuts. You
must use bolts that completely penetrate the post.
Step 10
Drill 3/8" holes through the gate cross member as marked. Mount gate
bracket using two 3/8" x 2 3/4" bolts, washers, lock washers and nuts.
NOTE: After the gate opener installation is complete and operation of the
opener system has been tested, you should remove excess bolt length
extending beyond the tightened nuts with a hacksaw or bolt cutters.
Round Tube & Chain Link Gate
Square Tube Gate
Mounting Plate
Created for
Decorative Gate
(required but not
supplied)
Remove excess bolt length
with hacksaw or bolt cutters
FRONT VIEW SIDE VIEW
FRONT VIEW
SIDE VIEW
Gate Bracket Mounting Examples
Round Metal Post
Round Wood Post
Square Metal Post
Square Wood Post
Remove excess bolt length
with hacksaw or bolt cutters
SIDE VIEW
TOP VIEW
EXAMPLES
Post Bracket
Mounting
Examples
Attach Opener Arm
Step 1
Attach the opener to the
securely bolted post bracket
assembly and gate bracket
using clevis pins, bushings,
and hairpin clips, or optional
Pin Lock [FM133] (page 28).
Verify that the opener is level
and adjust the post bracket
assembly, if necessary.
Step 2
Install the SECOND gate opener and hardware on the second gate following the same procedures as the FIRST gate opener and
hardware ("Installing Post Bracket Assembly and Gate Bracket" Steps 1–10).
NOTE: The power cable for the Second Opener should be run in PVC conduit under the driveway to protect it from damage due
to lawn mowers, heavy equipment, etc. (See illustration on page 6.) NEVER SPLICE opener arm power cables. This will cause
performance problems and may damage the opener.
Level Opener
Gate In Open Position
LEVEL horizontal cross member
Post Bracket Assembly
bolted to fence post
Clevis Pin, Bushing, and Hairpin Clip
Clevis Pin, Washer, and Hairpin Clip
Gate Bracket bolted
to gate cross member
Fence Post

11 HD272 Installation Instructions HD272 Installation Instructions 12
Install the Closed Position Stop Plates
The closed position stop plate is attached to the FIRST gate to help stabilize the gate leaf in the closed position. An optional low
prole ground stop, when used with the closed position stop plate, provides a secure point for the SECOND gate to close against.
To further enhance the stability and security of your gate, install a Mighty Mule Automatic Gate Lock [FM143] page 28). If you
will be using the Mighty Mule Gate Lock with your gate opener system, the closed position ground stop is required.
For Pull-to-Open systems, install the closed position stop plates on the inside of the gates.
For Push-to-Open systems, install the closed position stop plates on the outside of the gates.
Step 1
Detach the gate opener arms from the gates and move the gates to the closed
position.
Step 2
Using appropriate hardware for your type of gate (U-bolts for tube or chain
link; screw or bolts for wood or metal) attach the closed position stop plate
(horizontally) about mid-height on the FIRST gate frame. Do not tighten
it completely at this time. Slide the stop plate toward the frame of the
SECOND gate leaf until they touch. Once you have moved the stop plate to
the correct position, tighten its hardware completely.
Step 3
The low prole ground stop may be made of
metal or concrete and should be rmly secured
in the ground. The low prole ground stop
should be installed beneath the SECOND gate,
positioned near the leading edge.
Closed Position
Stop Plates
CONTROL BOX
Optional Ground Stop
(beneath gate)
FIRST GATE SECOND GATE
Closed Position Stop Plate mounted
horizontally on metal post with U-bolts.
SECOND Gate Frame
FIRST Gate Frame
OVERHEAD VIEW
FACING VIEW
Closed Position
Stop Plates Low Profile Ground Stop
(not included)
Post Bracket Assembly
Gate Bracket
Closed Position Stop Plate mounted
on the SECOND GATE
• •• • • • •• • • •• •• • •• • • • •• •• • •
• • • •• • • • ••• Ground Stop
•• •• • • • •• • • •• • • • • • •• ••• • •• • • • •
FACING VIEW
SIDE VIEW
• • • • • •• • •••• • •••
Closed Position
Stop Plate
Low Prole Ground Stop
Closed Position
Stop Plate
Step 4
Using appropriate hardware for your type of gate, attach the vertical
closed position stop plate to the SECOND gate frame at the point where
it will come in contact with the low prole ground stop. Do not tighten it
completely at this time. You must slide the closed position stop plate toward
the low prole ground stop until they touch. Once you have moved the stop
plate to the correct position, tighten its hardware completely.
Step 5
Return the gates to their open positions and
reattach the gate openers to the gates.

13 HD272 Installation Instructions HD272 Installation Instructions 14
Mount the Control Box
Step 1
Mount the Battery Box using the screws (provided) or another secure mounting method.
The battery/control box must be mounted at least 3 feet above the ground to protect it from
rain splash, snow, etc., and at least 3 feet from an AC power source to prevent electrical
interference.
!
Control Box
Piece of Wood
for Mounting
Screw Placement Guides
Plastic
Knockout
Battery
Back of
Control Box
Battery Wire Harness
with In-Line 20A Fuse
Connecting the Battery
Step 4
Verify that the ON/OFF switch is in the OFF position.
Connect the BATTERY WIRE HARNESS wires to the battery ---
RED wires to POSITIVE (+) battery terminal and BLACK wires to
NEGATIVE (–) battery terminal.
The BATTERY WIRES from the CONTROL BOARD should
extend through the KNOCK-OUT in the back of the CONTROL
BOX. Plug the BATTERY HARNESS wires into the wires coming
from the CONTROL BOX.
Step 5
Tuck the excess battery leads into the battery box and attach the
CONTROL BOX to the BATTERY BOX.
Step 2
Slide the battery into position with the terminals at the TOP.
Step 3
Remove the four (4) control box cover screws and remove the cover to
access the CONTROL BOARD.
Remove the plastic knockout to provide battery cable access.
VAR5
VAR6
K1
PF1
K2
BATT +
BATT –
K3
K4
VAR4
VAR3
VAR2
VAR1
MIN MAX OFF
≤JP1
REMOVE JUMPER FOR
PUSH TO OPEN OPTION
120
SEC.
GTO Inc. Tallahassee, FL R4722
STALL FORCE
OPEN < JOG > CLOSE
PWR. SET
LIMIT
1st OPR.
2nd OPR.
STATUS
AUTO CLOSE
SFTY.
EXIT
CYCLE
EDGE
SENSOR
COMMON
LOCK+
LOCK–
WHT
GRN
RED
BLK
WHT
GRN
SECOND OPR.FIRST OPR.
RED
BLK
CHARGE
OR
SOLA
ON OFF
Battery Harness Cable
from Battery
Step 6
Plug the BLACK battery harness wire into the BLACK wire
(BATT – terminal), and the RED battery harness wire to the RED
wire (BATT + terminal). Wire correctly; reverse connection will
damage control board.

15 HD272 Installation Instructions HD272 Installation Instructions 16
Connect Opener Power Cables
Step 1
Bring FIRST power cable into the control box through a strain relief slot,
leaving enough wire to reach the FIRST OPR. terminal block.
Insert the individual power cable wires into appropriate terminals on the FIRST
OPR. terminal block (white to WHT; green to GRN; red to RED; black to BLK).
Tighten the set screws. A dab of petroleum jelly on each terminal will help
prevent corrosion.
Step 2
Pull the 36' second opener power cable through the PVC conduit and secure in
the driveway slot/trench (see page 6 and page 16).
Step 3
Insert the SECOND power cable into a strain relief slot. Bring power cable into
the control box through a strain relief slot, leaving enough wire to reach the
SECOND OPR. terminal block.
Insert the individual power cable wires into appropriate terminals on the
SECOND OPR. terminal block (white to WHT; green to GRN; red to RED;
black to BLK). Tighten the set screws. A dab of petroleum jelly on each terminal
will help prevent corrosion.
Connect the Transformer
(*Solar Instructions on page 23)
IMPORTANT INFORMATION ABOUT LOW VOLTAGE WIRE:
• The only wire acceptable for use with NSC products is 16 gauge multi-stranded, low voltage, direct burial wire. This
particular gauge enables the transformer to provide an adequate charge through the control board to the battery at
distances up to 1000'.
• DO NOT use telephone wire or solid core wire. Unlike multi-stranded wire, these types of wire are inadequate for use
with your gate opener system.
• NEVER splice wires together. Splicing permits corrosion and seriously degrades the wire's ability to carry an adequate
current.
Step 1
Make sure the power switch is OFF.
Step 2
Select the electrical outlet where you will plug the transformer. Measure the
distance from this outlet to the control box following the path where the wire
will be laid. After you have measured how much wire is needed, cut the wire to
the appropriate length (up to 1000').
VAR5
VAR6
K1
PF1
K2
BATT +
BATT –
K3
K4
VAR4
VAR3
VAR2
VAR1
MIN MAX OFF
≤JP1
REMOVE JUMPER FOR
PUSH TO OPEN OPTION
120
SEC.
GTO Inc. Tallahassee, FL R4722
STALL FORCE
OPEN < JOG > CLOSE
PWR. SET
LIMIT
1st OPR.
2nd OPR.
STATUS
AUTO CLOSE
SFTY.
EXIT
CYCLE
EDGE
SENSOR
COMMON
LOCK+
LOCK–
WHT
GRN
RED
BLK
WHT
GRN
SECOND OPR.FIRST OPR.
RED
BLK
CHARGE
ON OFF
Low Voltage Wire from
Transformer or Solar
OR
SOLA
Correct Wrong Wrong
Wire Terminal
Block Terminal Block Terminal Block
Wire Wire
NEVER USE TRANSFORMER AND SOLAR PANEL(S) AT THE SAME TIME!
ON/OFF
Switch
ON/OFF
Step 3
Lay the measured length of low voltage wire
in a trench following a path from the selected
electrical outlet to the control box. Wires coming
up from the ground should be run through PVC
conduit to protect them from lawn mower blades,
weed eaters, and grazing animals. Be sure to bury
the wire laid in the trench.
Step 4
Bring enough wire up through the PVC conduit to reach the control board.
Step 5
Strip 3/16" off the ends of the low voltage wire and twist tightly. Attach
these ends to the 16VDC OR SOLAR terminals located on the terminal
block). Be certain not to let the exposed wires touch each other!
Insert one transformer wire into a 16VDC OR SOLAR terminal. Insert the
other transformer wire into the remaining 16VDC OR SOLAR terminal. The
transformer wires can be connected to the 16VDC OR SOLAR terminals
regardless of color/polarity.
Tighten set screws against exposed end of wires. A dab of household
petroleum jelly on each terminal will help prevent corrosion.
First Gate Opener
Run 1000' (max.) of low
voltage wire to control
box from transformer
(wire not included).
120 Volt indoor
Transformer
(surge protector
not supplied)
PVC conduit (not included)
to protect wire from lawn
mowers and weed eaters.
Control Box
VAR5
VAR6
K1
PF1
K2
BATT +
BATT –
K3
K4
VAR4
VAR3
VAR2
VAR1
MIN MAX OFF
≤JP1
REMOVE JUMPER FOR
PUSH TO OPEN OPTION
120
SEC.
GTO Inc. Tallahassee, FL R4722
STALL FORCE
OPEN < JOG > CLOSE
PWR. SET
LIMIT
1st OPR.
2nd OPR.
STATUS
AUTO CLOSE
SFTY.
EXIT
CYCLE
EDGE
SENSOR
COMMON
LOCK+
LOCK–
WHT
GRN
RED
BLK
WHT
GRN
SECOND OPR.FIRST OPR.
RED
BLK
CHARGE
ON OFF
Low Voltage Wire from
Transformer or Solar
OR
SOLA
VAR6
BATT +
K3
K4
WHT
GRN
SECOND OPR.
RED
BLK
OR
SOLA
CHARGE
ON OFF
Low Voltage Wire
from Transformer
or Solar Panel

17 HD272 Installation Instructions HD272 Installation Instructions 18
Step 6
At the AC outlet, strip 1/2" of insulation from the ends of the low voltage
wire. Attach these stripped ends to the transformer terminals. A dab of
household petroleum jelly on each terminal will help prevent corrosion. We
suggest adding crimp on fork lugs to the end of each wire before attaching it
to the transformer.
Make sure the exposed wires do not touch each other!
Set the CLOSED Position Limit for PULL-TO-OPEN
Installation
Your transmitter must be able to operate the gate. If not see, "Personalize Your Transmitter Setting on page 20.
Note: The OPEN limit is when the opener is fully retracted and the gate is in the full open position. The open limit setting can
only be adjusted by moving the gate bracket. To achieve the optimum closed position, you must adjust the CLOSED limit setting:
Step 1
Remove the Control Box Cover. Make sure the Control Box switch is ON and that the gate is in the OPEN POSITION (arms fully
retracted).
Step 2
Press and HOLD the 2nd opener JOG CLOSE button on the control board and be prepared to RELEASE the button when the gate
reaches the desired closed position/limit. Use the JOG OPEN and CLOSE buttons to "ne tune" the gate position if necessary.
Step 3
Press and HOLD the 1st opener JOG CLOSE button on
the control board and be prepared to RELEASE the button
when the gate reaches the desired closed position/limit. Use
the JOG OPEN and CLOSE buttons to "ne tune" the gate
position if necessary.
Step 4
With the gates in the desired closed positions PRESS and
HOLD the SET LIMIT button until the alarm and RED
Light come on. Then release the button.
NOTE: The opener must be extended more than 7 inches to
set limits.
Step 5
NOTE: When the control box cover is removed the receiver range is reduced to less than 5 feet.
Press the transmitter button once (within 5 feet of the control board) and allow the gates to fully open. The alarm will beep once
when both gates reach the OPEN LIMIT. This indicates the limits for both arms are programmed in memory.
Step 6
Press the transmitter button and allow the gates to fully close to verify that they stop at the desired positions. Repeat Steps 2-5 if
correction is needed.
NOTE: If the gate stops and reverses you may need to adjust the Stall Force (see below).
MIN MAX OFF
REMOVE JUMPER FOR
PUSH TO OPEN OPTION
120
SEC.
STALL FORCE
OPEN < JOG > CLOSE
PWR. SET
LIMIT
1st OPR.
2nd OPR.
STATUS
AUTO CLOSE
FIRST Opener
JOG Buttons
SET LIMIT Button SET LIMIT Light
SECOND Opener
JOG Buttons
CAUTION
For safety reasons the Dual Sense Stall Force setting on the Mighty Mule control board comes from the factory set to the 10 o'clock position. This
setting may need adjustment depending on the size and weight of the gate.
ALWAYS KEEP SAFETY AT THE TOP OF YOUR LIST WHEN ADJUSTING OR SERVICING YOUR GATE SYSTEM.

19 HD272 Installation Instructions HD272 Installation Instructions 20
Setting Dual Sense Detection and Auto Close Timer
Do not use the Dual Sense Stall Force adjustment to compensate for a gate that is sticking or binding. Excessive Stall Force may cause
damage to the gate operator or gate system or Injury or Death.
The Stall Force adjustment controls the amount of force the opener will apply against an obstruction before it stops and reverses
direction. The adjustment on the control board operates like a volume control on a radio. It controls the amount of force the opener will
apply to an obstruction before it automatically reverses direction.
The Stall Force adjustment is located on the control board. Turn the “STALL FORCE” arrow in the center of the potentiometer with
small at head screwdriver. Adjust the sensitivity to the point where the gate operates without obstructing from its own weight or the
wind conditions in your area.
NOTE: You may need to increase the stall force in cold weather due to increased resistance from gate hinges. However, the
adjustment must remain as near to minimum as possible and when the weather improves decrease the setting to the appropriate
position.
Setting Auto-Close Time
The Auto-Close determines how long the gate will remain open before it automatically closes. The factory setting is OFF. Use a small
at blade screwdriver, you can adjust the settings to OFF, or from 3 to 120 seconds.
NOTE: Auto-Close timer is disabled (gate will not automatically close) if gate is not at the fully open position.
VAR5
VAR6
K1
PF1
K2
BATT +
BATT –
K3
K4
VAR4
VAR3
VAR2
VAR1
MIN MAX OFF
JP1
REMOVE JUMPER FOR
PUSH TO OPEN OPTION
120
SEC.
GTO Inc. Tallahassee, FL R4722
STALL FORCE
OPEN < JOG > CLOSE
PWR. SET
LIMIT
1st OPR.
2nd OPR.
STATUS
AUTO CLOSE
SFTY.
EXIT
CYCLE
EDGE
SENSOR
COMMON
LOCK+
LOCK–
WHT
GRN
RED
BLK
WHT
GRN
SECOND OPR.FIRST OPR.
RED
BLK
14 VAC
OR
SOLAR
ON OFF
MIN MAX
STALL FORCE
VAR5
VAR6
K1
PF1
K2
BATT +
BATT –
K3
K4
VAR4
VAR3
VAR2
VAR1
MIN MAX OFF
JP1
REMOVE JUMPER FOR
PUSH TO OPEN OPTION
120
SEC.
GTO Inc. Tallahassee, FL R4722
STALL FORCE
OPEN < JOG > CLOSE
PWR. SET
LIMIT
1st OPR.
2nd OPR.
STATUS
AUTO CLOSE
SFTY.
EXIT
CYCLE
EDGE
SENSOR
COMMON
LOCK+
LOCK–
WHT
GRN
RED
BLK
WHT
GRN
SECOND OPR.FIRST OPR.
RED
BLK
14 VAC
OR
SOLAR
ON OFF
OFF 120
SEC.
AUTO CLOSE
MMT103 Transmitter
Learning the MM103
With system off, press and hold the transmitter button you want to use, then
turn on the system and keep holding the button until the system "beeps" once.
ON/OFF
Switch
ON/OFF
WARNING: Changes, modications or adjustments not expressly approved by
Nortek Security & Control, LLC could void the user’s authority to operate this
equipment. There Are No User Serviceable Parts.
NOTE: For instructions on using the FM134/135 transmitter with this product,
refer to www.mightymule.com.
NOTICE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 the FCC. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user
is encouraged to try to correct the interference by one or more of the following measures:
—Reorient or relocate the receiving antenna.
—Increase the separation between the equipment and receiver.
—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
—Consult the dealer or an experienced radio/TV technician for help.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device
must accept any interference received, including interference that may cause undesired operation.

21 HD272 Installation Instructions HD272 Installation Instructions 22
PUSH-TO-OPEN gates open out from the property (opener arms extend to open). Push-To-Open Brackets are required for this type
of installation, one for each gate [FM148] page 29). In a Push-To-Open installation, the opener is installed while the gate is in the
closed position and the opener fully retracted. Swinging gates MUST NEVER open into public access areas!
Step 1: Read "Installation of the First Opener" on page 7.
Step 2: Determining The Mounting Position of The Post Bracket Assembly
A. Insert the 3/8" x 11/4" bolt through the center hole of the post brackets and post pivot bracket. Secure with a 3/8" washer,
lock washer and 3/8" nut. DO NOT overtighten the nut (the post pivot bracket will have to be adjusted later).Attach post
bracket assembly to the rear mount of the opener with a clevis pin. Secure the clevis pin with a hairpin clip. Attach gate
bracket to the front mount of the opener with a clevis pin. Secure
the clevis pin with a hairpin clip. For pictorial reference see Steps
1, 2 and 3 on page 8.
B. With the gate in the closed position (up to 110º from its open
position), and the opener fully retracted, adjust the post bracket
assembly and gate bracket until the opener is level. While holding
the opener level, use C-clamps to temporarily keep the post bracket
assembly and gate bracket in their respective positions on the fence
post and gate. For pictorial reference see Steps 3 on page 8.
IMPORTANT: Be sure the position of the gate opener and brackets
allows for 1" of clearance between the gate and the opener in both
the open and closed position, while at the same time maintaining
a stroke distance of 7" to 13" from center of hole in the end of the
retracted opener arm to the center of the hole in the gate bracket
with the gate in the open position. This mounting position will
give the opener the most efcient leverage point for operation and
provides the least possible pinch area.
C. After verifying that you have the best position for the post pivot
bracket in the closed position, insert the 5/16" x 11/4" bolt through
the aligned holes of the post bracket and post pivot bracket to hold
it in place. Remove the clevis pin from the front mount and while
supporting the gate opener, swing the gate and gate opener to the
open position. Again, check the clearance and be sure that the gate
opener is not binding.
IMPORTANT: If you don't have the required clearance, or if the
gate opener is binding, remove the 5/16" x 11/4" bolt and readjust
the post pivot bracket. TIP: Turn the post pivot bracket over for
more hole alignment options.
D. When the post pivot bracket assembly is in the optimum position,
reattach the opener to the gate bracket (gate in the closed position);
recheck the gate opener level; make sure the brackets are clamped
securely. Mark reference points for bolt holes on the post through
middle of post bracket slots. Mark reference points for bolt holes
on the gate cross member through middle of gate bracket slots.
After marking your reference points, remove the opener and
brackets from the post and gate.
E. Drill
3/8" holes through post as marked. Fasten post bracket assembly to the post using two 3/8" x 8" bolts, washers,
lock washers and nuts. You must use bolts that completely penetrate the post. Drill 3/8" holes through the gate cross
member as marked. Mount gate bracket using two 3/8" x 2 3/4" bolts, washers, lock washers and nuts.
NOTE: For mounting examples, see page 10.
Push-To-Open Installation Instructions
3/8" x 1 1/4" Bolt
3/8" Nut
Push-To-Open Bracket
(optional accessory FM148)
Post Bracket
Push-To-Open Bracket Assembly
3/8" Washer
Lock Washer
Gate in the Closed Position
Pinch Area (gray)
Gate in the Open Position
1" minimum
Pinch Area (gray)
1" minimum
7" to 13” stroke
Step 3: Attach Opener Arm (page 10)
Step 4: Install Closed Position Stop Plates (page 11)
Step 5: Mount the Control Box (page 12)
Step 6: Connect Opener Power Cables (page 15)
Step 7: Connect the Transformer (page 13) OR Solar Charger (page 23)
Step 8: Connect Battery Harness (page 17)
Step 9: Connect Battery (page 18)
Step 10: Remove Push-To-Open Jumper
A. Make sure the control box power switch is OFF.
B. Use small pliers to move the JUMPER for PUSH-TO-OPEN
applications.
C. Turn power switch ON. The control board is now congured to push
the gate open. (Keep the jumper, as it is necessary if there is ever a
need to convert the opener for Pull-To-Open).
Step 11: Set the Open Position Limit (Push-to-Open)
NOTE: Must have a transmitter that operates the gate. If not see Personalize Your Transmitter Setting on page 20.
The CLOSED limit is when the opener is fully retracted and the gate is in the closed position. The closed limit setting can only be
adjusted by moving the gate bracket. To achieve the optimum open position, you must adjust the OPEN Limit setting:
A. If not already ON slide the ON/OFF switch on the Control Box to the ON position and make sure the arms are in the
CLOSED POSITION (fully retracted).
B. Press and HOLD the FIRST Opener OPEN button on the control board and be prepared to RELEASE the button when
the gates reached the desired open position/limit. Use the JOG OPEN and CLOSE buttons to "ne tune" the gate position
if necessary.
C. Press and HOLD the SECOND Opener
OPEN button on the control board and
be prepared to RELEASE the button
when the gates reached the desired open
position/limit. Use the JOG OPEN and
CLOSE buttons to "ne tune" the gate
position if necessary.
D. NOTE: The opener arms must be
extended more than 7 inches to set
limits. With the gates in the desired open
positions PRESS and HOLD the SET
LIMIT button until the alarm and RED
Light come on. Then release the button.
E. NOTE: When the control box cover is removed the receiver range is reduced to less than 5 feet. Press the transmitter
button once and allow the gates to fully close. The alarm will beep once when both gates reach the CLOSED LIMIT.
This indicates the LIMITS for both arms are learned and stored in memory.
NOTE: If the gate stops and reverses you may need to adjust the Stall Force (see page 19).
F. Press the transmitter button and allow the gates to fully open to verify that they stop at the desired positions. Repeat
Steps B – E if correction is needed.
Step 12: Adjust Stall Force Setting (page 19)
Step 13: Set Auto Close Time (page 19)
Step 13: Personalize Transmitter Settings (page 20)
MIN MAX OFF
REMOVE JUMPER FOR
PUSH TO OPEN OPTION
120
SEC.
STALL FORCE
OPEN < JOG > CLOSE
PWR. SET
LIMIT
1st OPR.
2nd OPR.
STATUS
AUTO CLOSE
FIRST Opener
JOG Buttons
SET LIMIT Button SET LIMIT Light
SECOND Opener
JOG Buttons
MIN MAX OFF
REMOVE JUMPER FOR
PUSH TO OPEN OPTION
120
SEC.
STALL FORCE
OPEN < JOG > CLOSE
PWR. SET
LIMIT
1st OPR.
2nd OPR.
STATUS
AUTO CLOSE
Push-To-Open Jumper

23 HD272 Installation Instructions HD272 Installation Instructions 24
IMPORTANT INFORMATION ABOUT LOW VOLTAGE WIRE:
• The only wire acceptable for use with NSC products is 16 gauge multi-stranded, low voltage, PVC sheathed wire.
This particular gauge enables the solar panel to provide an adequate charge through the control board to the battery at
distances up to 250'.
• DO NOT use telephone wire or solid core wire. Unlike multi-stranded wire, these types of wire are inadequate for use
with your gate opener system.
Step 1
Make sure the power switch is OFF.
Step 2
Strip 3/16" off the ends of the low voltage wire and twist tightly. Attach
these ends to the 16VDC OR SOLAR terminals located on the terminal
block. Be certain not to let the exposed wires touch each other!
Step 2
Insert one solar panel wire into a 16VDC OR
SOLAR terminal. Insert the other solar panel
wire into the remaining 16VDC OR SOLAR
terminal. The wires can be connected to the
16VDC OR SOLAR terminals regardless of
color/polarity.
Step 3
Tighten set screws against exposed end of wires. A dab of household
petroleum jelly on each terminal will help prevent corrosion.
NOTE: For multiple panels wire the panels in parallel as shown in this diagram.
After connecting the solar panel(s) connect the battery
as shown on page 17.
NEVER USE TRANSFORMER AND SOLAR PANEL(S) AT THE SAME TIME!
It will damage the control board!
ON/OFF
Switch
ON/OFF
VAR5
VAR6
K1
PF1
K2
BATT +
BATT –
K3
K4
VAR4
VAR3
VAR2
VAR1
MIN MAX OFF
≤JP1
REMOVE JUMPER FOR
PUSH TO OPEN OPTION
120
SEC.
GTO Inc. Tallahassee, FL R4722
STALL FORCE
OPEN < JOG > CLOSE
PWR. SET
LIMIT
1st OPR.
2nd OPR.
STATUS
AUTO CLOSE
SFTY.
EXIT
CYCLE
EDGE
SENSOR
COMMON
LOCK+
LOCK–
WHT
GRN
RED
BLK
WHT
GRN
SECOND OPR.FIRST OPR.
RED
BLK
CHARGE
ON OFF
Low Voltage Wire from
Transformer or Solar
OR
SOLA
VAR6
BATT +
K3
K4
WHT
GRN
SECOND OPR.
RED
BLK
OR
SOLA
CHARGE
ON OFF
Low Voltage Wire
from Transformer
or Solar Panel
Solar Panel Instructions
RED RED
BLACK BLACK
Solar Panels connect in PARALLEL
Step 1
Turn control box OFF before connecting safety device wires to the control board. (Unplugging the transformer does not turn power to
the opener OFF.)
Step 2
Run wires from safety devices and other accessories through the strain relief openings in the bottom of the control box.
Step 3:
Follow directions in Accessory Installation Manuals.
Connecting Additional Devices
Photo Beams
Loop Detector
Push Button Control
According to
Application
Gate Opening Sensor
Refer to Sensor manual for
additional information if needed.
Edge Sensor
Automatic Gate Lock
ON
1 2 3 4 5 6 7 8 9 10
DIP
NO
COM
NC
V +
V –
LOOP
LOOP
LOOP
NOTE: Connections are for typical applications. For additional connection options not
illustrated here refer to the accessory manual for details.
4
6
6
6
2
6
Digital Keypad
2
3
6
4
12
ABC 3
DEF
4
GHI 5
JKL 6
MNO
7
PRS 8
TUV 9
WXY
0
5
MIN
STALL FORCE
OPEN < JOG > CLOSE
PWR. SET
LIMIT
1st OPR.
2nd OPR.
SFTY.
EXIT
CYCLE
EDGE
SENSOR
COMMON
LOCK+ LOCK–
WHT
GRN
RED
BLK
WHT
GRN
SECOND OPR.FIRST OPR.
RED
78
65432
AUTOMATIC
GATE LOCK
®
ELECTRONIC SECURITY LOCK
7
8
3
6
+-
Red
Blue
Black
Shield
Yellow
VAR5
VAR6
K1
PF1
K2
BATT +
BATT –
K3
K4
VAR4
VAR3
VAR2
VAR1
MIN MAX OFF
≤JP1
REMOVE JUMPER FOR
PUSH TO OPEN OPTION
120
SEC.
GTO Inc. Tallahassee, FL R4722
STALL FORCE
OPEN < JOG > CLOSE
PWR. SET
LIMIT
1st OPR.
2nd OPR.
STATUS
AUTO CLOSE
SFTY.
EXIT
CYCLE
EDGE
SENSOR
COMMON
LOCK+
LOCK–
WHT
GRN
RED
BLK
WHT
GRN
SECOND OPR.FIRST OPR.
RED
BLK
14 VAC
OR
SOLAR
ON OFF
Accessory Wire
Mighty Mule strongly recommends the use of additional obstruction detection devices however we do not endorse
any specic brand names. Only use products that are listed to be in compliance with any applicable UL safety
standards and national and regional codes.
PLEASE NOTE: Contact sensors, non-contact sensors, shadow loops, etc. are not included with the Mighty Mule.
Refer to the sensor manufacturer’s instructions for information about installing accessory devices.
The Mighty Mule ONLY accepts accessory devices with normally open dry contact outputs.
WARNING
Make sure the operator power switch is turned OFF before connecting ANY
device wiring to the terminals of the controller. Unplugging the transformer
does not turn power to the operator off.

25 HD272 Installation Instructions HD272 Installation Instructions 26
Accessory Inputs
1SAFETY: Typically for use with photo beam device, loop
detector or other non-contact sensors
• Activation of this input while the gate is closing will cause the gate
to stop and return to the opened position.
• Activation of this input while the gate is opening has no effect. (gate
will continue to open)
• Activation of this input while gate is idle will prevent gate from
closing.
• Activation of this input while at open limit will restart the auto close
time (if enabled).
2EXIT: Typically for use with exit loop or wand
• Activation of this input will open the gate if it’s not already at the
open position.
• Activation of this input while at open limit will restart the auto close
time (if enabled).
• Activation of this input while gate is idle will prevent gate from
closing.
3CYCLE: Typically for use with doorbell button or hard wired
keypad
• Each activation at this input will cycle the operation as follows:
… OPEN STOP CLOSE STOP OPEN …
4EDGE: Typically for use with contact edge sensor
• Activation of this input while gate is moving will cause it to
reverse direction for 2 seconds.
• Activation of this input while idle will prevent gate from running.
5COM: Common/Negative terminal for accessory devices.
12 Volt Power (Maximum Current: 100 mA)
5COM: Common/Negative terminal for accessory power source.
6LOCK +: Power source for NSC/Mighty Mule accessories, i.e. Gate Opening Sensor [FM138].
Lock Outputs
6LOCK +: Positive terminal to connect Automatic Gate Lock [FM143].
7LOCK – : Negative terminal to connect Automatic Gate Lock.
Charge Power Inputs
8CHGR: Power Input Terminals:
• Input terminals for transformer or solar panel.
• Non-polarity sensitive.
VAR5
VAR6
K1
PF1
K2
BATT +
BATT –
K3
K4
VAR4
VAR3
VAR2
VAR1
MIN MAX OFF
≤JP1
REMOVE JUMPER FOR
PUSH TO OPEN OPTION
120
SEC.
GTO Inc. Tallahassee, FL R4722
STALL FORCE
OPEN < JOG > CLOSE
PWR. SET
LIMIT
1st OPR.
2nd OPR.
STATUS
AUTO CLOSE
SFTY.
EXIT
CYCLE
EDGE
SENSOR
COMMON
LOCK+
LOCK–
WHT
GRN
RED
BLK
WHT
GRN
SECOND OPR.FIRST OPR.
RED
BLK
14 VAC
OR
SOLAR
ON OFF
1
8
7
6
5
4
3
2
Troubleshooting Guide
If your gate opener does not function properly, use this guide or use the online troubleshooter located at
www.mightymule.com before calling the NSC Service Department.
VISUAL AND AUDIBLE DIAGNOSTIC INDICATORS
1. Visual Indicators:
a. Power LED (Green):
• ON: AC power or Solar power is present.
• OFF: There is no input power.
2. AUDIBLE INDICATOR (ALARM/BUZZER):
a. Beeps upon power up:
• This is normal self test when the unit is turned on.
b. Continuous beep after power up:
• Check for a stuck button on a transmitter.
c. Continuous alarm after activation or activation attempt:
• Unit has encountered two (2) obstructions without reaching either limit. (Power cycle to reset the alarm)
• Alarm will automatically shut off after 5 minutes; gate will remain disabled until control box is restarted.
d. 1 beep every 20 seconds:
• Low battery is detected.
e. 1 beep every 2 seconds:
• Position sensor on rst opener is open circuit. Call NSC Service department.
f. 2 beeps every 2 seconds:
• Position sensor on second opener is short circuit. Call NSC Service department.
g. 1 beep when attempting to activate the opener:
• Blown fuse.
• Battery is extremely low or damaged.
• Loose connection from battery to circuit board.
h. 3 beeps every 2 seconds (rst opener):
• Position sensor is short circuit.
• Call Mighty Mule Service department.
i. 4 beeps every 2 seconds (second opener):
• Position sensor is short circuit.
• Call Mighty Mule Service department.
3 .IF THE GATE STOPS AND REVERSES DIRECTION
1. Check the position of the mounting brackets and readjust if necessary.
2. Check the gate for binding or hinge damage.
3. Adjust stall force if necessary.
4. Reprogram closed position limits.
Control Board
Control Box Cover - Final Step
Attach and secure the CONTROL BOX COVER to the CONTROL BOX
HOUSING.

27 HD272 Installation Instructions HD272 Installation Instructions 28
Maintenance
Monthly, test the obstruction and entrapment protection systems.
Monthly, service the gate operator (make sure the power switch is OFF). Clean extended operator arm with a soft, dry clean cloth.
After cleaning, apply a high quality silicon spray to a soft dry cloth and wipe the push/pull tube. DO NOT directly spray the tube!
On all gates weighing 250 lb. or more, routinely grease the ball bearing hinges at least 4 times a year; more frequently if the gates
are near a coastal area.
Monthly, turn off the power switch and disconnect the Mighty Mule and move the gate to make sure the gate is moving freely
without sticking or binding. Lubricate the hinges or repair the gate as required before reattaching the Mighty Mule.
Monthly, check the gate system for potentially entrapments from new landscaping or construction. Eliminate or guard as required.
Monthly, check that the warning signs are mounted on each side of the gate and clearly visible. Replace the signs if they are miss-
ing or damaged.
Replace batteries every 2-3 years and properly recycle old batteries.
Warranty Repair
If your Mighty Mule Gate Opener is not operating properly, please follow the steps below:
1. First use the procedures found in the Visual and Audible Diagnostic Indicators section (page 26).
2. Use the 24/7 Troubleshooting "Wizard" located at www.mightymule.com.
3. If you are unable to solve the problem, call the NSC Service Department at [phone], or [phone]. Refer to
the serial number (located on the back of opener arm) and date of purchase when calling for assistance.
4. If replacement of your gate opener is necessary, the Service Department will assign a Return Goods Authorization
(RGA) number to you for all warranty repairs.
5. Securely pack the component(s) authorized for return to the factory. Write the RGA number issued to you on the outside of
the package in LARGE BOLD PRINT and include a copy of the proof of purchase. Ship the package(s) freight prepaid to
the address supplied during the RGA process:
NOTE: Products returned to NSC without a Return Goods Authorization (RGA) number in LARGE BOLD
PRINT on the outside of the package WILL NOT be accepted. Also, items returned to NSC freight collect WILL
NOT be accepted.
After the 12 month warranty expires, NSC, or one of its authorized service centers will perform necessary repairs for a nominal
fee. Call NSC's Technical Service Department.
Mighty Mule Technical Service and Installation Assistance
8:00am–7:00pm • Monday–Friday (EST)
Toll Free Support: 800-543-1236 • Fax: [phone]
24/7 Troubleshooting Wizard link found at: www.mightymule.com
Accessories
Please visit www.mightymule.com for photos and
detailed descriptions of Mighty Mule Accessories,
or call Mighty Mule sales 1-800-543-4283.
Solar Panel (FM123)
If your gate is more than 1000' from an AC power source, you can choose to maintain the battery charge with the
Solar Panel Charging Kit. Installation in some regions of the world will require multiple solar panels for adequate
charging power.
Pin Lock (FM133)
The Pin Lock substitutes for the clevis pin at the front end of the Mighty Mule gate openers. Helps prevent theft
of the opener from the gate.
MMT103
The MMT103 Code Safe digital transmitter is a wireless radio control designed for use with Mighty Mule garage
door openers and can also be programmed to your Mighty Mule gate openers. One remote for two or three
devices.
MMK200 Keypad
The Mighty Mule Wireless Keypad is designed to control access to all Mighty Mule Garage Door Openers. This
keypad features a LED back light that allows you to see numeric keys throughout dark or unfavorable weather
conditions. ®
Mounting Post (FM100) - In Ground
This black powder coated pedestal is designed to provide convenient access to your keypad, wireless intercom,
or other access control device from your vehicle. Surface Mount Flanges (F102) and Extensions (F103) for added
height are available.
Mighty Mule Vehicle Sensor (FM138)
The Sensor is an electromagnetic sensor, which offers "hands free" operation of the Mighty MuleGate Opener
with a 12 ft. radius of detection of vehicles in motion. A wireless version of the Gate Opening Sensor is available.
(FM130)
Automatic Gate Lock Pull-to-Open (FM143)
A MUST for added security. Solenoid driven, with a steel housing. Unlocks and locks automatically as gates open
and close. Comes with a keyed manual release. Recommended for gates over 8 ft. long.
AUTOMATIC
GATE LOCK
®
ELECTRONIC SECURITY LOCK