Mighty Mule 200 E-Z GATE Installation Manual

Installation Manual for the

UL325 SERIES

200

®

E-Z GATE OPENER

WARNING!

This equipment is similar to other gate or door equipment and meets or exceeds
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 GTO, Inc. 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 GTO, Inc. 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 opener. This gate opener produces a high level
of force. Stay clear of the unit while it is operating and exercise caution at all times.

All automatic gate openers are intended for use on vehicular gates only.

This product meets and exceeds the requirements of UL 325, the standard which regulates gate opener safety,

as established and made effective March 1, 2000, by Underwriters Laboratories Inc.

For more information on Mighty Mule’s full line of Automatic Gate Openers and Access Controls visit our website at www.mightymule.com

GTO Sales: (800) 543-GATE (4283) or [phone] • Fax [phone] or

GTO Technical Service [phone] or [phone]

For 24 hour/day, 7 day/week Technical Service visit http://support.gtoinc.com/support/troubleshooter.aspx

©

2008 GTO, Inc.

rev- 08/06/08

R200INST

The Mighty Mule® Gate Opener is intended for use with vehicular swing gates. The opener can be used in
Class I, Class II and Class III applications.

VEHICULAR GATE OPENER CLASS CATEGORIES

Residential Vehicular Gate Opener-Class I: A vehicular gate opener (or system) intended for use in a

home of one-to-four single family dwelling, or a garage or parking area associated therewith.

Commercial/General Access Vehicular Gate Opener-Class II: A vehicular gate opener (or system)
intended for use in a commercial location or building such as a multifamily housing unit (five or more
single family units), hotel, garages, retail store, or other building servicing the general public.

Industrial/Limited Access Vehicular Gate Opener–Class III: A vehicular gate opener (or system)
intended for use in an industrial location or building such as a factory or loading dock area or other
locations not intended to service the general public.

Conversion Chart

Converting Metric Units to English Equivalents

When You Know Multiply By To Find Symbol

centimeters 0.3937 inches in. (or ")
meters 3.2808 feet ft. (or ')
kilograms 2.2046 pounds lb. (or #)

Converting English Units to Metric Equivalents

When You Know Multiply By To Find Symbol

inches 2.5400 centimeters cm
feet 0.3048 meters m
pounds 0.4535 kilograms kg

Converting Temperature

deg. Celsius (ºC x 1.8) + 32 deg. Fahrenheit ºF
deg. Fahrenheit (ºF-32) ÷ 1.8 deg. Celsius ºC

FOR YOUR RECORDS

Please record the product serial number (located on the rear of opener arm),
and the date and place of purchase in the spaces provided below. Refer to this
information when calling GTO for service or assistance with your automatic
gate opener.

Serial Number ____________________ Date of Purchase ____________________

Place of Purchase ____________________

Remember to keep all receipts for proof of purchase.

Table of Contents

Gate Opener Class Categories ------------------------------------------------------------ inside cover
Units and Standards Conversion Chart ------------------------------------------------ inside cover

KEEP THESE INSTRUCTIONS FOR FUTURE REFERENCE

PLEASE READ THIS FIRST! ------------------------------------------------- page iii

Important Safety Instructions ---------------------------------------------- page 1

Disconnecting the Opener ------------------------------------------------------------- page 1
Important Safety Instructions for the Consumer ------------------------------- page 2
Secondary Means of Protection Against Entrapment ------------------------ page 5
Required Safety Precautions for Gates -------------------------------------------- page 6
Warning Signs and Labels ------------------------------------------------------------- page 7

Installation ------------------------------------------------------------------------ page 8

Parts List ------------------------------------------------------------------------------------- page 8
Tools and Items Needed for Installation ------------------------------------------- page 9
Technical Specifications ------------------------------------------------------------- page 10

Installation Overview -------------------------------------------------------------------- page 11

Installation of the Mounting Hardware --------------------------------------------- page 13
Mounting the Opener -------------------------------------------------------------------- page 17
Installation of the Closed Position Stop ------------------------------------------- page 17
Mounting the Control Box -------------------------------------------------------------- page 18

Powering Options: Transformer or Solar -------------------------------- page 19

Solar Panel and Gate Activity Chart ------------------------------------------------ page 19
Connecting Solar Panel(s) ------------------------------------------------------------- page 20
Connecting the Battery ----------------------------------------------------------------- page 21
Connecting the Transformer ---------------------------------------------------------- page 21
Setting the Closed Position Limit --------------------------------------------------- page 24

Control Board Settings ------------------------------------------------------ page 25

Stall Force and Auto-Close ------------------------------------------------------------ page 25

Setting Your Personal Transmitter Code ------------------------------- page 26

Connecting Additional Safety Devices --------------------------------- page 27

Control Board Connections ------------------------------------------------ page 28

Connecting Accessories ---------------------------------------------------- page 29

Visual and Audible Diagnostic Indicators ----------------------------- page 30

Warranty Service --------------------------------------------------------------- page 32

Column Installation Information ------------------------------------------ page 33

Accessory Catalog ------------------------------------------------------------ page 34

PLEASE READ THIS FIRST!

®

E-Z GATE OPENERS

Thank you for purchasing a Mighty Mule® 200 E-Z Gate Opener—GTO's "do-it-yourself" automatic gate
opener! When correctly installed and properly used, your Mighty Mule® E-Z Gate Opener 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 video will
enable you to properly install your Mighty Mule® E-Z Gate Opener.

The Mighty Mule® 200 E-Z Gate Opener is designed for installation on a pull-to-open single leaf gate
(gates that open into the property). The gate must not exceed 12 feet and 300 pounds (please see Technical
Specifications on page 10). The Mighty Mule® E-Z Gate Opener can be used on vinyl, aluminum, chain
link, farm tube, and wrought iron gates. Use on solid gates is not recommended. Solid surface gates have
a high resistance to the wind.

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 opener will obstruct and
stop, blow fuses, or may damage the equipment.

The Mighty Mule® E-Z Gate Opener accommodates extra transmitters, digital keypads, solar panels,
push buttons, automatic gate locks, and other access control products. These optional accessories (see
the enclosed 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
GTO Sales Department (800-543-GATE).

The Mighty Mule® E-Z Gate Opener features adjustable obstruction sensing. This safety feature
makes the gate stop and reverse direction within 2 seconds when it comes in contact with an obstruction.
MIN is the factory setting; meaning the gate will exert the minimum force on an obstruction before it stops
and reverses direction.

The Mighty Mule® E-Z Gate Opener 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.
PLEASE NOTE—If your application requires any of the following:

Push-to-open;
Column Mounting;
Slide gates;
Heavy duty or commercial uses;
Professional installation;

please call GTO at (800) 543-GATE [4283] or [phone] for information about our GTO/PRO
professional line of gate openers and accessories. Our Sales Department will be glad to give you the name
and phone number of a GTO/PRO dealer near you.

BEFORE YOU BEGIN TO INSTALL YOUR AUTOMATIC GATE OPENER:

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 opener safety and proper use of the gate opener.

iii

IMPORTANT SAFETY INSTRUCTIONS

Clevis
Pin

Hairpin Clip

Gate Bracket

Front Mount

Bushing

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.

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.

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.

IMPORTANT: NEVER allow opener arm to hang

by the front mount - it will break from the arm weight.

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.

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).

Mighty Mule 200

1

IMPORTANT SAFETY INSTRUCTIONS

Gate in the
Open Position

ZONE 2

ZONE 3

ZONE 4

ZONE 5

Driveway

ZONE 1

For The Consumer

WARNING: To reduce the risk of injury or death:

1. READ AND FOLLOW ALL INSTRUCTIONS. Failure to meet the requirements set forth in the instruction

manual could cause severe injury and/or death, for which the manufacturer cannot be held responsible.

2. When designing a system that will be entered from a highway or main thoroughfare, make sure the
system is placed far enough from the road to prevent traffic congestion.

3. 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.

4. The gate and gate opener installation must comply with any applicable local codes.

I. Before Installation

1. Verify this opener is proper for the type and size of gate, its frequency of use and the proper class rating.

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 opener and safety devices used with the system.

3. Review the operation of the system to become familiar with its safety features. Understand how to
disconnect the opener for manual gate operation (see page 1).

4. This gate opener is intended for vehicular gates ONLY. A separate entrance or gate must be installed
for pedestrian use (see page 6).

5. Always keep people and objects away from the gate and its area of travel. NO ONE SHOULD CROSS
THE PATH OF A MOVING GATE.

6. Pay close attention to the diagram below and be aware of these areas at all times.

Entrapment Zones
for a Pull-To-Open
Application

2

Mighty Mule 200

IMPORTANT SAFETY INSTRUCTIONS

Moving Gate

Area

Driveway

10'

10'

10'

10'

NEVER INSTALL

any control device

within gray area

Entrapment Zones for a proper Pull-To-Open installation:

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 opener and gate.

II. During Installation

1. Install the gate opener on the inside of the property and fence line. DO NOT install an opener 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 fingers or hands could be pinched.

3. Devices such as contact sensors (safety edges) and non contact sensors (photo beams) provide
additional protection against entrapment.

4. If push buttons or key switches are installed, they should be within sight of the gate, yet 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 opener.

5. Do not activate your gate opener 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 opener controls in order to prohibit unauthorized use of the gate.

Pull-To-Open
Application

Mighty Mule 200

3

IMPORTANT SAFETY INSTRUCTIONS

III. After Installation

1. Attach the warning signs (included) to each side of the gate to alert the public of auto matic gate
operation. It is your responsibility to post warning signs on both sides of your gate. If any of these signs
or warning decals become damaged, illegible or missing, replace them immediately. Contact GTO for
free replacements.

2. The gate is automatic and could move at any time, posing a serious risk of entrapment. No one should
be in contact with an activated 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 controls away from children and unauthorized users; store controls where children and
unauthorized users do not have access to them.

6. KEEP GATE AND GATE OPENER PROPERLY MAINTAINED. Always turn power to opener OFF before
performing any maintenance. Regularly grease the gate hinges. Clean the push-pull tube with a soft, dry
cloth and apply silicone spray to it at least once per month.

7. To operate this equipment safely, YOU must know how to disconnect the opener for manual gate
operation (see page 1). If you have read the instructions and still do not understand how to disconnect
the opener, contact the GTO Service Department.

8. Disconnect the opener ONLY when the power is TURNED OFF and the gate is NOT moving.

9. Make arrangements with local fire and law enforcement for emergency access.

10. Distribute and discuss copies of the IMPORTANT SAFETY INSTRUCTIONS 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 opener are aware of the
dangers associated with automated gates. In the event you sell the
property with the gate opener or sell the gate opener, provide a copy
of these safety instructions to the new owner.

Should you lose or misplace this manual, a copy can be obtained by

downloading one from the Mighty Mule® web site (www.mightymule.
com), by contacting GTO, Inc., at 3121 Hartsfield Road, Tallahassee,
Florida 32303 or by calling 1-800-543-4283 and requesting a duplicate
copy. One will be provided to you free of charge.

4

Mighty Mule 200

IMPORTANT SAFETY INSTRUCTIONS

Vehicular Gate

Leading Edge Contact Sensor

on both sides of the gate

Bottom Edge Contact Sensor

on both sides of the gate

Post Edge Contact Sensor

on both sides of the gate

Secondary Means of Protection Against
Entrapment

As specified by Gate Opener Safety Standard, UL 325 (30A.1.1), automatic gate openers shall have
an inherent entrapment sensing system, and shall have provisions for, or be supplied with, at least one
independent secondary means to protect against entrapment. The Mighty Mule® utilizes Type A, an
inherent (i.e., built-in) entrapment sensing system as the primary type of entrapment protection. Also, the
Mighty Mule® has provisions for the connection of Type B2 protection to be used as the secondary type
of entrapment protection, if desired.

1. For gate openers utilizing a contact sensor (e.g., safety edge sensor– Type B2) in accordance with UL
325 (51.8.4 [i]):

A. One or more contact sensors shall be located at the leading edge, bottom edge, and post edge,

both inside and outside of a vehicular swing gate system.

B. A hard wired contact sensor shall be located and its wiring arranged so that the communication

between the sensor and the gate opener is not subjected to mechanical damage.

C. A wireless contact sensor such as one that transmits radio frequency (RF) signals to the gate

opener for entrapment protection functions shall be located where the transmission of the signals are
not obstructed or impeded by building structures, natural landscaping or similar obstruction. A wireless
contact sensor shall function under the intended end-use conditions.

ENTRAPMENT ALARM (UL 325; 30A.1.1A)

The Mighty Mule® E-Z Gate Opener is designed to stop and reverse within 2 seconds when the
gate comes in contact with an obstruction. Additionally, these openers 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 opener 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.

Mighty Mule 200

5

IMPORTANT SAFETY INSTRUCTIONS

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

!

Warning Sign

Pedestrian Gate

Bulldog Pedestrian

Gate Lock

Vehicular Gate

Contact Sensor

(recommended, not included)

Contact Sensor

(recommended, not included)

Contact Sensor

(recommended, not included)

(recommended, not included)

Required Safety Precautions for Gates

Install Warning Signs

Warning signs alert people of automatic gate operation and are required when installing the Mighty Mule®
E-Z Gate Opener. Furthermore, a walk-through gate must be installed if pedestrian traffic is expected near
the vehicular gate. We recommend using the GTO Bulldog Pedestrian Gate Lock (Call the GTO Sales
Department) for controlled access.

Entrapment Protection

GTO’s inherent obstruction settings, even when properly adjusted, may not be sensitive enough to
prevent bodily injury in some circumstances. For this reason, safety devices such as safety edge

sensors (or photoelectric sensors), which stop and reverse gate direction upon sensing an obstruction,
are suggested for enhanced protection against entrapment.

Warning Signs

The warning signs (at right) must
be installed on both sides of the
gate (see page 7 for details).

6

Mighty Mule 200

Warning signs (2 enclosed) to be installed on each side
of the gate (3–5 feet above the bottom of the gate)

!

Product identification label (1)
installed under rear mount on arm

Control box label (1)

i

nstalled on front of the control box

Logo and warning labels (2)

installed on each side of opener housing

GTO DC SW200 Series
Conforms to UL325
5th Edition Standards

Serial No.

MM200-0000000

mm/dd/yy

GTO, Inc Ta llahassee, Florida USA

®

E-Z GATE OPENER

®

200

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 separate entrance.

Maximum Gate: 300 lbs. (249.4 kg); 12 ft. (4.9 m) • Voltage: 12 Vdc;

Frequency: 0Hz; Power: 25W • Class I and II Vehicular Swing Gate Operator

TO MANUALLY OPEN AND CLOSE THE GATE

1. Turn opener power switch OFF.

2. Disconnect front or rear mount from mounting bracket.

3. Pull opener away from mounting bracket and move gate.
Disconnect opener ONLY when the power switch is
OFF and the gate is not moving.

®

E-Z GATE OPENER

®

IMPORTANT SAFETY INSTRUCTIONS

These warning labels should

be found at the locations

specified below. If any are

missing, immediately contact

GTO for replacements.

Mighty Mule 200

7

Parts List - Opener and Mounting Hardware

Hairpin Clip (2)

3/8" x 1-1/2" Clevis Pin (2)

5/16" x 1-1/2" Bolt (1)

3/8" x 1-1/2" Bolt (1)

3/8" x 2-3/4" Bolt (2)

3/8" x 8" Bolt (2)

8" Nylon Cable Tie (14)

3/8" Washer (6)

5/16" Washer (1)

3/8" Lock Nut (5)

5/16" Lock Nut (1)

Hardware Bag Contents

Gate Opener (1)

Installation DVD (1)

Gate Bracket (1)

Post Pivot Bracket (1)

3/8" Bushings (1)

Customer Support Card (1)

Post Bracket (1)

Closed Position
Stop Plate (1)

2" Mounting Screw (3)

Transformer (1)

Warning Signs (2)

GTO Transmitter(1)

1 KEEP CLEAR! Gate may move at any ime

2 Do not allow chldren to ope ate gate or
play in gate area

3 This gate is for vehicles only Pedest ians
must use a separate entrance

Moving Gate Can Cause

Injury Or Death

WARNING

!

Control
Box (1)

8

Mighty Mule 200

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

• Phillips Screwdriver/ Large

• Tape Measure

• Level

• Wire Strippers

• C-Clamps — small, medium, and large

• Center Punch

• Extra person will be helpful

• Hammer (for center punch)

YOU MAY ALSO NEED THESE ITEMS BEFORE YOU BEGIN THE INSTALLATION
(Some of these items can be found in the Accessory Catalog page 34):

• 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 opener arm. See
Powering Options: Transformer or Solar on page 19, and the Accessory Catalog.

• If your gate is more than 1000' away from AC power source you will need to use at least one

Mighty Mule® 5 watt Solar Panel (FM121) (not included) to charge the 12 Volt automotive or marine

type battery (not included). See the Accessory Catalog.

• If your fence post is made of wood and is less than 6" in diameter or 6" square, see page 13.

• PVC conduit.

• If you have thin walled tube or panel gates, see Recommended Reinforcement Examples on page 13.

• 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. See page 11 and page 13.

• Surge protection for transformer.

• Some types of installations require U-Bolts for closed position bracket.

• Some installations may require mufer clamps for the gate bracket. (See Page 13)

IMPORTANT:

A 12V AUTOMOTIVE OR DEEP CYCLE MARINE BATTERY

IS REQUIRED TO OPERATE THE GATE OPENER.

Mighty Mule 200

9

Technical Specifications

Gate Weight

Gate Length

Number of Cycles Per Day

Mighty Mule 200 Gate Capacity /Cycle Chart

Estimated number of daily cycles, based on use with a transformer.

300 lbs.
150 lbs.
100 lbs.

50 lbs.

77
82
87
92

5’ - 6’

72
77
82
87

8’

67
72
77
82

10’

62
67
72
77
12’

MIGHTY MULE® 200 E-Z GATE OPENER

DRIVE

• Low friction screw drive (linear actuator) rated for -5 ºF to +160 ºF (-20 ºC to +71 ºC).

• 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 110º. Approximate opening time (90º): 18 seconds, depending on weight of gate.

POWER

• The system is powered by a 12 Vdc automotive or marine battery.

• Battery charge is maintained by a 120 Vac, 18 Vac output transformer [rectied to 14.5 Vdc (40 VA) through

the GTO control board] or by optional GTO Solar Panels [the panel should generate minimum of 5 W at

300 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 15 A.

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

• GTO microprocessor-based control board is set for single leaf, pull-to-open gate installations.

• Control board has temperature compensated circuits.

• A circuit on the control board regulates charging. "Sleep draw" is 15 mA; "active draw" is 2 to 5 A.

• Auto-memorization of digital transmitter code.

• GTO RF receiver tuned to 318 MHz.

• Opener length with push-pull tube fully retracted is 26

stroke is 13".

• Adjustable auto-close timer (OFF to 120 s), and obstruction sensitivity.

• 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 safety edge sensors and photoelectric sensors.

• Audio entrapment alarm sounds if unit encounters an obstruction twice while opening or closing.

3

/

8", mounting point to mounting point. Maximum

• The Gate Capacity Chart shows approximate cycles, per day, you can expect from the Mighty Mule 200

Automatic Gate Opener when powered with a transformer. Actual cycles may vary slightly depending upon
the type and condition of gate and installation.

NOTE: BALL BEARING HINGES SHOULD BE USED ON ALL GATES WEIGHING OVER 250 LB.
To determine the number of cycles the gate opener will perform using solar panels, please see the specifications

listed on page 18 or call [phone] or [phone] for more information.

* An operation cycle is one full opening and closing of the gate.

10

OPERATIONAL CAPACITY

* These specifications are subject
to change without notice.

Mighty Mule 200

Preparation of the Gate

Horizontal Cross Member

G

ate Swings Evenly and Freely

Hung Firmly and Plumb

Post Bracket Assembly

12 Volt automotive or marine
type battery in weather proof
housing (not included).

Gate Bracket

Single Gate Opener

Fence Post Set in Concrete

Run 1000' (max.) of low
voltage wire to control
box from transformer
(wire not included).

Closed Position Positive Stop Plate

120 Volt indoor
Transformer

(surge protector

not supplied)

PVC conduit (not included)
to protect wire from lawn
mowers and weed eaters.

Warning Sign

Control Box

Horizontal Cross Member

Vertical Cross Member

The gate must be plumb, level, and swing freely
on its hinges. Wheels must not be attached to
the gate. The gate must move throughout its arc

without binding or dragging on the ground.

Note that gates over 250 lb.. should have ball
bearing hinges with grease fittings.

The fence post should be no larger than 6" in
diameter and must be secured in the ground

with concrete so it will minimize twist or ex

when the opener is activated. We recommend
you position the opener near the centerline
of the gate to keep the gate from twisting and

exing and to avoid backsplash from rain water.

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.

Installation Overview

The diagrams shown below are examples of an installation on a chain link fence.

Mighty Mule 200

11

1" minimum

Gate in the
OPENED POSITION

Pinch Area

Gate in the
CLOSED POSITION

Pinch Area

1" minimum

13” or less

Installation Overview (continued)

Center hole of

gate opener

pivot bracket

IMPORTANT: To achieve optimum leverage for the gate opener and ensure long trouble free service, the
gate opener needs to be installed within the following perameters.

The diagram below shows the optium position for gate opener arm in relation to the gate in the open and
close positions.

Be sure the position of the gate opener and brackets allows for 1 inch of
clearance between the gate and the opener in both the open and closed
position, at the same time maintaining a maximum distance of 13 inches
from the end of the opener arm to the gate bracket with the gate in the
closed position.

If the gate post is larger
than 6 inches the Post Pivot
Bracket can be removed and
the center hole of the Post
Bracket can be the mounting
point for the gate opener.

If installing on columns or
posts larger than 8 inches
refer to page 33 for column
installation information.

12

Mighty Mule 200

Installation of Mounting Hardware

Post
Bracket

Post
Pivot Bracket

Metal Plate

Wooden Post

Post
Bracket

Post
Pivot Bracket

Metal Plate

Wooden Post

Gate Bracket

Wood or Metal
Reinforcement

(not supplied)

Gate
Bracket

Panel
Gate

1" x 6"
Wood

Reinforcement

Thin Walled
Tube Gate

Gate Bracket

Muffler Clamp
(not supplied)

The position of the post bracket determines the leverage and efficiency of the opener. The post bracket
position also sets the clearance between the opener and gate in the open and closed positions.

The curved design of 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 that completely

penetrate the fence post must be used.

On wooden posts, place a metal plate or
washer (not supplied) between the nuts
and the fence post to prevent the thrust
of the opener from pulling the bolts and
washers out of the wood.

NOTE: A fence post smaller than 6" in
diameter or 6" square should be made
of metal instead of wood so that it will
remain stable while the opener is moving the gate.

NOTE: The post pivot bracket may not need to be used on post larger than 6" in diameter.

IMPORTANT:

We recommend using a mufer clamp, wood, or metal (not included) 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 when the opener is installed. Additional hardware may be needed depending on the installation.

Wood or Metal Reinforcement 1" x 6" Wood Reinforcement

Muffler Clamp for Gate Bracket

Mighty Mule 200

13

Determining the Mounting Position

3/8" x 1-1/2" Bolt

3/8" Lock Nut

Post Pivot Bracket

Post Bracket

Post Bracket Assembly

3/8" Washer

Clevis Pin

Hairpin Clip

Post Bracket Assembly

3/8” Washer

Rear Mount

Opener

Clevis
Pin

Hairpin Clip

Gate Bracket

Front Mount

Bushing

Fence Post

Gate In Open Position

LEVEL horizontal cross member

Post Bracket Assembly

Gate Bracket

Level Opener

of the Post Bracket Assembly and the Gate Bracket

Step 1

Insert the 3/8" x 11/2"
bolt through the center
hole of the post brackets
and post pivot bracket
as shown. Fasten a 3/8"
washer and 3/8" lock nut
on the end of the bolt.
DO NOT overtighten the
lock nut because the
post pivot bracket will
have to be adjusted later.

REMINDER:

The following steps are
intended for pull-to-open
gate installations only.

Step 2

Attach post bracket assembly to the rear mount of the opener with a clevis pin and a 3/8" washer. Secure
the clevis pin with a hairpin clip. Attach gate bracket to the front mount of the opener with a clevis pin and a
3/8" bushing. Secure the clevis pin with a hairpin clip

Step 3

With the gate in the open position (up to 110º from its closed 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.

14

Mighty Mule 200

1" minimum

Gate in the
OPENED POSITION

Pinch Area

Gate in the
CLOSED POSITION

Pinch Area

1" minimum

13” or less

Be sure gate opener
and bracket don't bind.

IMPORTANT: While determining the mounting point for the post pivot bracket assembly, be sure that the

3/8" x 1-1/2"
Bolt

Post Pivot
Bracket

Determine Best
Hole Alignment
to Achieve
1” Clearance

Post Bracket

position allows for minimum 1 inch of clearance between the gate and the opener in both the open and
closed positions, as well as maintaining the maximum 13" distance explained in the gate installation overview
earlier. This position will give the opener the most efficient leverage point for opening and closing the gate
and more importantly provides the least possible pinch area.

Step 4

After verifying that you have the best position for the post pivot bracket in the open position, insert the
5/16" x 1-1/2" 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. With the gate and gate opener in the closed position check the clearance
and be sure that the gate opener is not binding at the post pivot bracket.

If you don't have 1 inch of clearance, the gate opener is binding on the post pivot bracket, or you don't
have 13' or less from the front mount to the gate bracket in the closed position, remove the 5/16" x 1-1/2"
bolt and readjust the pivot bracket until you can achieve these important clearances and distance.

With the post pivot bracket in the optimum position for clearance and freedom of movement, reattach
the opener to the gate bracket in the open position and recheck the gate opener level and make sure the
brackets are clamped securely.

TIP: Turning the pivot bracket over gives

more hole alignment options for the post
pivot bracket assembly. You can also move
the entire post pivot bracket assembly to
different positions on the gate post to help
achieve the proper clearances.

Post Pivot Bracket
Alignment Options

Mighty Mule 200

15

Installing the Post Bracket Assembly and Gate Bracket

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

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
Assembly

Mark fence post through
middle of bracket slots
and drill 3/8" holes

Gate In Open Position

LEVEL horizontal cross member

Mark cross member through middle of
gate bracket slots and drill 3/8" holes

Step 5

Mark reference points for bolt holes
on the fence post through middle
of bracket slots. Marking reference
points in this manner allows room for
adjustment when mounting the post
bracket assembly and gate bracket.
After marking your reference points,
remove the opener and brackets
from the fence and gate.

Step 6

Drill 3/8" holes into fence post as
marked.

Step 7

Fasten post bracket assembly to the

3

fence post using (2)
washers and lock nuts (provided).
Remove excess bolt length
extending beyond the tightened nuts
with a hacksaw or bolt cutters.

/8" x 8" bolts,

NOTE: In cases where the fence
post has a diameter larger than 6",

threaded rods or carriage bolts
longer than 8" (not supplied) must

be used.

Step 8

Mark reference points for bolt holes
on the gate cross member through
middle of gate bracket slots. Drill

3

/8" holes into the gate cross

member as marked.

Mount gate bracket using (2)

3

/8" x 2-3/4" bolts, washers,
and lock nuts (provided). Cut off
excess bolt length extending beyond
the tightened nuts.

Gate Bracket Mounting Examples

16

Mighty Mule 200

Mounting 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

Closed Position
Stop Plate

Closed Position Stop Plate mount
on metal post with U-bolts.

Gate Hinge

The gate opens to 110º (max.)

Fence Post

Gate Post

TOP VIEW

SIDE VIEW

Step 9

Attach the opener to the securely bolted post bracket assembly and gate bracket using clevis pins,
bushings, and hairpin clips, or optional Pin Locks (see Accessory Catalog). Verify that the opener is level
and adjust the post bracket assembly if necessary.

Installation of the Closed Position Stop

The Mighty Mule® Gate Opener firmly holds the gate in the closed position using the
positive stop plate. The positive stop helps stabilize the gate leaf in the closed position.
To further enhance the stability and security of your gate, install the optional
Mighty Mule® Automatic Gate Lock (see Accessory Catalog).

Step 10

Remove hairpin, clevis pin, and bushing from
front mount and close the gate (remember to
support opener). Fasten the closed position stop

plate to the end of the gate frame on the gate
centerline, but do not tighten it completely. Slide

the stop plate toward the fence post until they
touch (see illustration). Once you have moved
the stop plate to the correct position, tighten its
hardware completely.

Use the appropriate hardware for your type of

gate (use U-bolts or a mufer clamp if you have

a tube or chain link gate). This hardware is NOT
provided.

Mighty Mule 200

17

1 K EP L AR G t m y m v t n t m

2 D n t l w ldr n t p r t t r

pl y in t r

3 This t is r v h l s n y P d s i ns

mut s s p r t n r n

Moving Ga e Can Cause

Injury Or Dea h

WARNING

!

Step 11

1 EEP CLE R G t m y m v t ny m

2 D n t ll w id n t p r t t r

l y n t r

3 hs t is f r v hi l s n y P d s ri ns

mut us s p r t n r n

Moving Ga e Can Cause

Injury Or Dea h

WARNING

!

Backing Piece

of Wood

Control Box

Receiver Antenna

Power Cable

Return the gate to the open
position and reconnect the gate
opener front mount to the gate
bracket using the bushing, clevis
pin and hairpin clip. Before
mounting the control box check
the checklist below to be sure
that you have completed the
important installation steps.

CHECK LIST

• The gate is plumb, level, and swings smoothly on its hinges.

• A plate or support was added for the gate bracket (if necessary).

• The opener is level and mounted on the centerline of the gate.

• The closed position stop plate is installed in place.

Mounting the Control Box

• Unravel the coiled up power cable attached to the control box and opener.

• Mount control box at a location that achieves optimal receiver/transmitter range.

• The top of the fence is an acceptable location for mounting the control box.

• If necessary, attach a backing piece of wood when mounting the control box to a metal fence.

• Leave enough slack in the cable for gate operator movement.

18

Mighty Mule 200

Powering Options: Transformer or Solar

IMPORTANT

• The Mighty Mule 200 is designed and intended for use with a 12 Volt automotive or marine type

battery. The battery must be placed inside a weatherproof case and located within 6 feet of the
opener arm. The 8 foot harness supplied connects the battery to the opener arm.

• The battery charge is maintained by the 18 Volt transformer included or by using optional solar
panel(s). The transformer or solar panel is connected to the opener arm control board using
low voltage, 16 gauge, dual conductor, multi-stranded, direct burial wire (RB509) (see the

Accessory Catalog).

• All low voltage wire used with the Mighty Mule® Gate Opener must be 16 gauge dual

conductor, multi-stranded, direct burial wire (see page 22 and the Accessory Catalog). Do not
run more than 1000 feet of wire.

• The transformer is designed and intended for indoor use. If the transformer can be plugged
only into an outside electrical outlet, a weatherproof cover or housing (available at local
electrical supply stores) must be used.

• If your gate is more than 1000 ft. from an ac power source, you will need to use at least one 5

watt Solar Panel to charge the battery (see Accessory Catalog). Refer to the Solar Panels and

Gate Activity chart below.

NEVER USE TRANSFORMER AND SOLAR PANEL(S) AT THE SAME TIME

– it will damage the control board –

Solar Panel and Gate Activity Chart

The table and
map illustrate the
maximum number
of gate cycles to
expect per day in
a particular area
when using from 5

to 30 watts of solar
charging power. (see Accessory
Catalog). The figures 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.

Single Gate Winter Ratings Zone 1 Zone 2 Zone 3

12 v single gate (5 watts) solar charger 4 8 13
12 v single gate (10 watts) solar charger 8 16 26
12 v single gate (15 watts) solar charger 11 20 30
12 v single gate (20 watts) solar charger 14 28 38
12 v single gate (25 watts) solar charger 17 36 46
12 v single gate (30 watts) solar charger 20 44 54

Mighty Mule 200

19

POWER

LED3

D15

R20

IC4

D16

D13

D14

CHGR

CHGR

BAT

T-

EDGE

CYCLE

EXIT

SAFETY

COM

COM

LOCK+

LOCK -

PGOK200 Rev. XC

M_BLK
M_RED

VAR2

GRN

VAR3

R3

VAR1

VAR4

VAR5

PF1

VAR6

WHT

GTO Inc. Tallahassee, FL

Low Voltage Wire
from Solar Panels

Red

Black

Connecting Solar Panel(s)

RED

RED

BLACK

BLACK

attach BLACK to the ‘COM’ terminal on the control board
attach RED to the ‘CHGR’ terminal on the control board

Solar Panels connect in PARALLEL

Remove the screw
and lift the cover off
to gain access to the
control board.

ON/OFF Switch

Low Voltage Wire
from Solar Panel

Wires from Battery

Power Cable from
Opener Arm

O

OFF

120

AUTO CLOSE

TIME

MIN

MAX

STALL

FORCE

ON OFF

SG1

ED1

1

06

AVR-SP

D1

C2

C7

C15

LED3

D15

R20

C4

D16

D13

D14

2

BATT BATT+

TATUS

ANT SHLD

S9 8874

EDGE

COM

LOCK+

LOCK

PGOK200 Rev XC

M_BLK
M_RED

VAR2

GRN

VAR3

R3

VAR1

AR4

VAR5

PF1

VAR6

WHT

GTO Inc Tallahassee FL

CYCLE

EXIT

SAFETY

PVC Pipe

Antenna Wire

CHGR

CHGR

COM

IMPORTANT: Never connect the transformer and a
solar panel to the opener control board at the same
time. It will damage the control board.

If you are using the transformer included with the
Mighty Mule 200 to charge the opener battery, skip
this section and go to "CONNECTING BATTERY".

3

Strip

/16" off the ends of the low voltage wire from

the solar panel and twist tightly. Attach solar panel

RED (+) wire to the 'CHGR' terminal on the control
board and the BLACK (-) wire to the 'COM' terminal
on the control board as shown.

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.

20

Mighty Mule 200

RED to POSITIVE

BLACK to NEGATIVE

Battery Cable
from Control Box

Connecting the Battery

Low Voltage Wire
from Transformer

Wires from Battery

Power Cable from
Opener Arm

POWER

OFF

120

AUTO CLOSE

T ME

MIN

MAX

STALL

FORCE

ON OFF

SG1

ED1

K1

06

AVR-SP

D1

C2

C7

C15

LED3

D15

R20

IC4

D16

D13

D14

K2

BATT BATT+

STATUS

ANT SHLD

S9 8874

EDGE

COM

LOCK+

LOCK -

PGOK200 Rev. XC

M_BLK
M_RED

VAR2

GRN

VAR3

R3

VAR1

VAR4

VAR5

PF1

VAR6

WHT

GTO Inc. Tallahassee, FL

CYCLE

EXIT

SAFETY

COM

PVC Pipe

Antenna Wire

CHGR

CHGR

Switch

cessory W

Remove the screw

and lift the cover off
to gain access to the
control board.

ON/OFF Switch

Step 1

IMPORTANT: Make sure the power switch on the control box is in the
OFF position.

Step 2

Place the 12 Volt automotive or marine type battery and its
weatherproof case within 6 feet of the fence post where the opener arm
is mounted.

Step 3

Attach the battery wires provided, to the terminals of the battery. Take
care to attach the BLACK wire to the NEGATIVE terminal and the RED
wire to the POSITIVE terminal. Reverse connection will cause damage
to the control board.

Connecting the Transformer

IMPORTANT: Use either transformer
or solar panel. DO NOT connect both
transformer and solar panels to the opener
control board at the same time. It will
damage the control board.

Step 1

Make sure the power switch is OFF before
proceeding to the next step.

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.

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.

Mighty Mule 200

21

12 Volt automotive or marine
type battery in weather proof
housing (not included).

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

Step 4

Bring enough wire up through the PVC conduit to reach the control box.

IMPORTANT INFORMATION ABOUT LOW VOLTAGE WIRE

The only wire acceptable for use with GTO products is 16 gauge multi-stranded, low voltage,
PVC sheathed wire. This particular gauge enables the transformer to provide an adequate
charge through the control board to the battery at distances up to 1000 ft.

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.

22

Mighty Mule 200

Step 5

SURGE PROTECTOR

Transformer

POWER

LED3

D15

R20

IC4

D16

D13

D14

CHGR

CHGR

BAT

T-

EDGE

CYCLE

EXIT

SAFETY

COM

COM

LOCK+

LOCK -

PGOK200 Rev. XC

M_BLK
M_RED

VAR2

GRN

VAR3

VAR3

VAR1

VAR4

VAR5

PF1

VAR6

WHT

GTO Inc. Tallahassee, FL

Low Voltage Wire
from Transformer

Strip 3/16" off the ends of the low voltage
wire and twist tightly. Attach these ends to
the 'CHGR' terminals located on the terminal
block (see illustration at right). Be certain not

to let the exposed wires touch each other!

Insert one transformer wire into a 'CHGR'
terminal. Insert the other transformer wire
into the remaining 'CHGR' terminal. The
transformer wires can be connected to the
'CHGR' terminals regardless of color.

Tighten set screws against exposed end of
wires. A dab of household petroleum jelly on
each terminal will help prevent corrosion.

Step 6

At the AC outlet strip
the ends of the low voltage wire. Attach these
stripped ends to the transformer terminals.

1

/2" of insulation from

A dab of household petroleum jelly on each
terminal will help prevent corrosion.

We suggest crimping a spade tongue terminal
(not provided) to the end of each wire before
attaching it to the transformer.

Make sure the exposed wires do not touch
each other!

Step 7

Plug the transformer into the electrical outlet.
(Use of a surge protector with the transformer
is strongly recommended - not included)
If electrical outlet is located outdoors, outlet
and transformer should be protected by a
weatherproof cover.

Mighty Mule 200

23

Fully Open Position

Fully Closed Position

Setting the Closed Position Limit

POWER

O

MIN

MAX

STALL

FORCE

ON OFF

SG1

K1

06

AVR-ISP

D1

C2

C7

C15

LED3

D15

R20

C4

D16

D13

D14

K2

BATT BATT+

EDGE

COM

LOCK+

LOCK -

PGOK200 Rev. XC

M_BLK
M_RED

VAR2

GRN

VAR3

AR3

VAR1

AR4

VAR5

PF1

VAR6

WHT

GTO Inc. Tallahassee, FL

CYCLE

EXIT

SAFETY

COM

CHGR

CHGR

ON/OFF SWITCH

STALL FORCE

Note: Must have a transmitter that operates the gate. If not see 'Setting Your
Personal Transmitter Code' on page 26.

Your Mighty Mule 200 has two Limit Settings

1. OPEN Limit setting: (Gate in the OPEN POSITION / FACTORY SET &
NOT ADJUSTABLE) The open limit setting is the fully open position.

2. CLOSED Limit setting: The CLOSED Limit setting (gate in the
CLOSED POSITION) To achieve optimum closed position, you are
required to complete the following FIVE STEPS:

Step 1

With the gate in the fully open position (arm fully retracted), slide the ON/OFF switch on the control box
to the OFF position. If gate is not open, use the transmitter to put the gate into the fully open position,
then slide the ON/OFF switch on the control box to the OFF position.

Step 2

Press and hold the hand held transmitter button while sliding the ON/OFF switch to the ON position.
Continue to hold the transmitter’s button until the alarm sounds (3-5 seconds). The unit is now in the
‘LEARN LIMIT’ mode. (In this mode the unit will run only when the transmitter is held down. The
gate will stop when the transmitter’s button is released. The gate will alternate its running direction each
time the button is pressed.)

Step 3

Press and hold the transmitter’s button to close the gate. Prepare to release the transmitter’s button
when the gate reaches the desired closed position. (Note: Use the transmitter to ‘fine-tune’ the closed
position of the gate. Make sure the last running state is in the closing direction). The gate is now at the
desired closed position limit.

Step 4

Press & hold the transmitter to run the gate open
uninterrupted all the way to the full open limit. If the
gate stops prior to reaching the open limit position,
bring the gate back to the desired closed position
and repeat steps 2 and 3. (Note: If the gate stops and
reverses while the transmitter is held down, the ‘STALL
FORCE’ adjustment may be set too low. Turn ‘STALL
FORCE’ pot clockwise and repeat steps 2-3)

Step 5

Once the gate reaches the open position limit you
will hear a single beep from the alarm confirming
that the closed position limit is ‘learned’. The unit will

TESTING YOUR CLOSED LIMIT SETTING:

Press your entry transmitter and allow your gate to close.
If CLOSED position is not correct or needs to be changed you
will need to repeat steps 1-5.

automatically exit ‘LEARN LIMIT’ mode and return to
normal operation (momentary press of the transmitter
will operate the gate). Run the gate to the closed
position and verify that it stops at the desired position.

24

Mighty Mule 200

OFF

120

AUTO CLOSE

TIME

MIN

MAX

STALL

FORCE

ON OFF

SG1

ED1

06

AVR-ISP

C7

15

TATUS

ANT SHLD

S9.8874

MIN

MAX

STALL

FORCE

Stall Force Potentiometer Setting

OFF

120

AUTO CLOSE

TIME

MIN

MAX

STALL

FORCE

ON OFF

SG1

ED1

06

AVR-ISP

C7

15

STATUS

ANT SHLD

S9.8874

OFF

120

AUTO CLOSE

TIME

IMPORTANT: For safety reasons the obstruction setting
or Stall Force on the Mighty Mule® control
board comes from the factory set at MIN
(minimum). In many gate installations this
setting will need to be adjusted to overcome
the weight and size of the gates.

The Stall Force potentiometer on the
control board operates like a volume
control on a radio. It controls the
obstruction sensitivity (or the amount
of force the opener will apply to an
obstruction) before it automatically stops
and reverses direction for approximately
two (2) seconds.

Use a small slotted screwdriver to turn the
arrow in the center of the potentiometer. Adjust
the sensitivity from the MINIMUM position 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.

ALWAYS KEEP SAFETY AT THE TOP OF YOUR LIST

WHEN ADJUSTING OR

SERVICING YOUR AUTOMATIC GATE OPENER!

Setting Auto-Close Time

CLOSE TIME (auto close timer): Determines
how long the gate will remain open before it
automatically closes. The limits are OFF and
3 - 120 seconds. The factory setting is OFF.

NOTE: Auto-Close timer is disabled (gate
will not automatically close) if gate is not in
the open limit.

Mighty Mule 200

25

ON/OFF Switch

+

0

ECE

1 2 3 4 5 6 7 8 9

1 2 3 4 5 6 7 8 9

ECE

A23S 12V

L LI B T

+

0

–

LED

Setting Your Personal Transmitter Code

All GTO transmitters are set to a standard code at the factory and are
ready to operate your Mighty Mule® Gate Opener

®

. For your safety and
security, however, we strongly recommend that you replace the factory
setting with your own personal code. Follow the directions below:

1. Remove the Transmitter Cover

On the back of the transmitter use a small phillips head screw driver
to remove the two screws on the sides of the visor clip and separate
the front cover from the transmitter. With the front cover removed,
the battery and the DIP switches will be exposed. To set a new code,
use a small screwdriver to move the switches.

2. Set the Transmitter DIP Switches

There are nine (9) transmitter DIP switches; each can be placed in three
different positions (+, 0, –). DO NOT set all the switches in the same
position, such as all +, all 0, or all –. Once the DIP switches have been
set to a personal code, replace and close the access cover.

WARNING: No other adjustments should be made inside the transmitter.

3. “Learn” the New Code to Control Board Memory

A. Slide the ON/OFF switch to the OFF position.
B. Press and hold the hand held transmitter
button while sliding the ON/OFF switch
to the ON position.
C. Continue to hold the transmitter's button

until the alarm sounds (3-5 seconds).

D. Release the transmitter's button. The new

transmitter code is 'learned'.

E. Verify that the transmitter operates the gate.

NOTE: It is NOT necessary to remove the cover
of the control box to 'learn' the new transmitter

code.

26

Mighty Mule 200

Connecting Additional Safety Devices

ON/OFF Switch

Accessory Wires

(Photo beams, keypad, etc.)

Carefully remove wiring
knockout to insert
accessory wires.

Insert accessory wires
through the knockout and
route to the accessory
input terminals on the
control board.

Although GTO strongly recommends the use of additional safety devices, we do not endorse any

specific brand names. Only use products that are certified and listed to be in compliance with any

applicable UL standards (Underwriters Laboratories) and national and regional safety codes.

Call GTO Sales at 1-800-543-4283 for information on compatible

products for your specific application.

Make sure the power to the opener is turned off before connecting safety device wiring to the

terminal blocks. Unplugging the transformer does not turn power to the opener OFF.

Wiring Accessories through Wiring Knockout

Mighty Mule 200

27

3

6

4

5

7

POWER

LED3

EDGE

COM

LOCK+

LOCK -

PGOK200 Rev.

GTO Inc. Talla

CYCLE

EXIT

SAFETY

COM

CHGR

CHGR

1

2

8

9

Control Board Connections

NOTE:

• All accessory inputs are dry-contact, normally open, inputs. DO NOT apply external voltage sources

to these inputs.

• All accessory inputs are connected with respect to COMMON terminal.

1 CHGR: Power Input Terminals:

INPUTS

CHARGE POWER

ACCESSORY INPUTS

• Input terminals for transformer or solar panel.

• Non-polarity sensitive

2 COM:

• Common/Negative terminal for accessory devices.

3 SAFETY: (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).

4 EXIT: (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).

5 CYCLE: (Typically for use with doorbell button or hardwired

keypad)

• Each activation at this input will cycle the operation

as follows:
…. OPEN STOP CLOSE STOP OPEN …

6 EDGE: (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.

7 COM:

• Common/Negative terminal for accessory devices.

8 LOCK +: Positive terminal to connect GTO electro-mechanical lock. (FM143)

9 LOCK - : Negative terminal to connect GTO electro-mechanical lock. (FM143)

LOCK OUTPUTS

28

Mighty Mule 200

POWER

LED3

EDGE

COM

LOCK+

LOCK -

PGOK200 Rev. XC

M_BLK

M_RED

GRN

VAR3

AR3

VAR1

VAR4

VAR5

VAR6

GTO Inc. Tal lah a s se

CYCLE

EXIT

SAFETY

COM

CHGR

CHGR

GTO Photo Beams

GTO Loop Detector

Mighty Mule
Push Button Control

According to
Application

Mighty Mule
Vehicle Sensor

Refer to Vehicle Sensor
manual for additional
information if needed.

Edge Sensor

GTO Lock

ON

1 2 3 4 5 6 7 8 9 10

DP

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.

5

2

7

2

3

7

Mighty Mule Keypad

3

4

2

5

1

2

ABC

3

DE

4

GH

5

KL

6

MN

7

RS

8

U

9

X

0

6

1 2 3 4 7 8 95 6

AUTOMATIC
GATE LOCK

®

ELECTRONIC SECURITY LOCK

8

9

4

7

+

-

Red

Blue

Black

Shield

Yellow

Connecting Accessories

Mighty Mule 200

29

Visual and Audible Diagnostic Indicators

If your gate opener does not function properly after it is installed, use this guide or use the online

troubleshooter at http://support.gtoinc.com/support/troubleshooter.aspx before calling the

GTO Service Department.

• 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 in a coastal area.

• Clean the push-pull tube with a soft, dry cloth and apply silicone spray to it at least once a month.

1. Visual Indicators:

a. Power LED (Green):

• ON: AC power or Solar power is present.

• OFF: There is no AC input power.

b. Status LED (Yellow): (while unit is running this LED will be OFF)

• Rapid blinking in random pattern: GTO’s transmitter 318 MHz signal is detected.

• Continuously ON: Battery is in fast charge mode.

• 1 Blink every 2 seconds: Battery is in oat charge mode (battery is fully charged)

• OFF: Switch is in the OFF position or there is no input power for at least 60 seconds.

2. Audible Indicator (Alarm/Buzzer):

a. 1 Beep upon power up:

• This is normal self test when the unit is turned on.
b. Continuous beep after power up:

• Unit has learned new transmitter code, releasing the transmitter button will shut off

the alarm or…

• Unit has entered ‘LEARN LIMIT’ mode, releasing the transmitter button will shut off the alarm.

c. Rapid beeping:

• Unit has encountered two (2) obstructions without reaching either limit. (Power cycle to

reset the alarm)

• Transmitter will not operate the gate.

• Alarm will automatically shut off after 5 minutes.

d. 1 beep every 20 seconds:

• Low battery is detected.
e. 1 beep every 2 second:

• Position sensor is open circuit. Call GTO service department.
f. 2 beeps every 2 second:

• Position sensor is short circuit. Call GTO service department.
g. 1 beep when attempting to run the gate:

• Blown fuse.

• Battery is extremely low or damaged.

• Loose connection from battery to circuit board.

30

Mighty Mule 200

The Gate CLOSES Then Opens Again on its Own:

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.

The Gate OPENS Then Closes Again on its Own:

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.

VOLTAGE RATINGS

18 Vac Transformer _________________________ 18.0 to 22.0 Vac 2200 mA

5 W Solar panel (single) _____________________ 18.0 to 22.0 Vdc 300 mA
measure voltage at panel and control box.

12 V Battery ________________________________12.0 to 13.5 Vdc
Charging circuit ____________________________ 12.0 to 14.8 Vdc
measure voltage with battery connected

Mighty Mule 200

31

Warranty Service

®

E-Z GATE OPENERS

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 (see page 30).

2. Use the Online Troubleshooter at http://support.gtoinc.com/support/troubleshooter.aspx.

3. If you are unable to solve the problem, call the GTO 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 receipt for proof
of purchase. Ship the package(s) freight prepaid to:
GTO, Inc., 3121 Hartsfield Road, Tallahassee, Florida, USA 32303.

NOTE: Products returned to GTO 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 GTO freight collect WILL NOT be accepted.

For more information on Mighty Mule’s full line of Automatic Gate Openers and Access Controls visit our website at www.mightymule.com

For 24 hour/day, 7 day/week Technical Service visit

http://support.gtoinc.com/support/troubleshooter.aspx

The GTO, Inc. Technical Service Department is open

Monday – Friday 8:00 A.M. – 7:00 P.M. (Eastern Time)

1-800-543-1236

For sales call toll free:

1-800-543-GATE (4283)

GTO, Inc.

3121 Hartsfield Road • Tallahassee, Florida, USA 32303 • [phone]

Fax [phone] • www.mightymule.com

32

Mighty Mule 200

Column Installation Information

Column

Pivot Bracket

Gate

A

B

Column Mount Example

(A + B can not exceed 13 inches)

Example: If A is 2" then B can not exceed 11"

Hinge

IF THIS OPENER WILL BE USED WITH GATES THAT ARE MOUNTED ON
MASONRY, BRICK, OR ROCK (etc.) COLUMNS:

READ THE FOLLOWING CAREFULLY BEFORE PROCEEDING

A. The simplest solution is to install the opener in a push-to-open configuration (requires Push-To-Open
Bracket, see Accessory Catalog). The minimum clearance is easier to achieve and clearance is no
longer a problem, since the opener will be pushing the gate away from the column instead of pulling it
toward the column. It is recommended that you place a steel plate between the opener mounting
brackets and masonry surface for additional strength.

B. If a push-to-open installation is impossible due to traffic hazards, terrain, etc., another option is to re-
hang the gate. You may hang it on a post, either in the center of the column or at the back corner, or
move the gate to the back corner of the columns.

C. The most difficult solution is to cut a notch in the column to accommodate the opener and power cable.
This job is NOT for the inexperienced!

Mighty Mule 200

33

®

E-Z GATE OPENERS

ACCESSORIES

AUTOMAT C
GATE LOCK

1

2

3

4

5

6

7

8

9

0

Accessories are Available From Your Retail Store

Solar Panel (FM121) 5 watt (FM123) 10 watt

This solar powered battery charger is for use with the FM200 gate operator system. Particularly
suited for remote installations, each Solar Panel comes with tubular steel support, mounting clips,
wire connectors, and 8 ft. of low voltage wire (see Low Voltage Wire for additional wire). The Mighty

Mule® control board has clearly labeled terminal connections for easy installation of the Solar
Panel. Installation in some regions of the world will require multiple solar panels for adequate

charging power.

Push Button Control (FM132)

Unlit doorbell button for remote entry or exit control. Wires directly to the control board and uses 16
gauge multi-stranded, dual conductor low voltage wire (sold separately).

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 operator from the gate, while allowing quick release of the operator.

Key Chain Two Button Transmitter (FM134)

The Key Chain Transmitter is a dual button version of the Mighty Mule® single button entry
transmitter and has the same adjustable code settings. Used for 2 gates or 1 gate and garage door.
(battery is included)

Single Button Transmitter (FM135)

The Mighty Mule® entry transmitter, with adjustable code settings, is standard equipment with all
Mighty Mule® systems. (battery is included)

Digital Keypad (FM137)

The specially designed digital keypad can be easily installed as a wireless or wired keypad. It can
be programmed to use up to 25 different personal identification number (PIN) codes. Each code is
face programmable with additional security features built in. Wired installations require 16 gauge,
low voltage, multi-stranded, dual conductor, direct burial wire (sold separately). Requires 3 AA
batteries (not included).

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. With its break down design it
is easy to install and works well in most standard applications. Surface Mount Flanges (F102) and
Extensions (F103) for added height are available.

Mighty Mule® Vehicle Sensor (FM138)

The Gate Opening Sensor is designed for residential and agricultural applications and is compatible
with most Mighty Mule® automatic gate opener models (see Sensor Box for model compatibility).
The Sensor is an electromagnetic sensor, which offers 'hands free' operation of the Mighty Mule®
Gate Operator 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. Used with Mighty Mule® DC swing gate operating systems for maximum
stability and security. Comes with a keyed manual release. Recommended for gates over 8 ft. long.
Ideal for animal enclosures or high wind areas.

34

Mighty Mule 200

Accessories are Available From Your Retail Store (con't)

Wireless Entry Intercom / Keypad (FM136)

Allows owner to screen guest at the gate before allowing access to the property. Keypad also allows
owner to give up to 25 programmable entry codes to family, friends or approved delivery personnel.
Codes can be permanent or temporary. Can be wireless up to 500 feet.
Additional base stations available (F3101MBC).

Driveway Alarm (FM131)

Keep track of the comings and goings on your property with this electromagnetic sensor alert
system. When a vehicle passes the sensor, the receiver emits an audible tone and lets you know
someone’s there. Functional range of up to 400 ft. Easy-to-install and stake is included in kit.
Transmitter requires 2 “C” batteries (not included)

Wireless Driveway Vehicle Sensor (FM130)

The wireless gate opening sensor offers hands free operation of the Mighty Mule Gate Opener. Works
wirelessly up to 100 feet from the gate. Transmitter, receiver and two AA batteries are included.

Low Voltage Wire (RB509)

The 16 gauge, multi-stranded, dual conductor Low Voltage Wire is for connecting the AC powered
transformer, or the Solar Panel to the control board. Also used for the connection of accessories,
such as locks, keypads, push buttons and other wired control devices. This specially designed wire
is UV treated, PVC coated and ready for direct burial. Available in 1000' rolls or special lengths.

Replacement Transformer (RB570)

Standard 18 volt, 2200 mA, AC transformer for maintaining the battery included with the Mighty Mule®
gate operator. This is the only transformer approved for use with all UL325 Mighty Mule® gate operator

systems.

Garage Door Receiver (RB709U-NB)

The Garage Door Receiver allows you to use the same Mighty Mule® entry transmitter to operate your
gate operator and your garage door operator. Compatible with most garage door operators.

If you have a question about any special order item,

just call 1-800-543-GATE!

The contents of all material available on this installation manual are copyrighted by GTO, Inc. (“GTO”), unless otherwise indicated. All rights are reserved by GTO, and content may not be
reproduced, downloaded, disseminated, published, or transferred in any form or by any means, except with the prior, written permission of GTO. Any reprinting of GTO publications is by

Mighty Mule¨, E-Z Gate¨, GTO¨, are registered trademarks of GTO, Inc. America’s DIY Automatic Gate Openers is a trademark of GTO, Inc. and are the exclusive property of GTO, Inc.

All rights are reserved by GTO, and these marks may not be used, in any for without the prior, written permission of GTO.

permission only. Copyright infringement is a violation of federal law.

(“GTO”).