Mighty Mule | Automatic Gate Opener SystemFOR DUAL SWING GATES | Installation manual | Mighty Mule Automatic Gate Opener SystemFOR DUAL SWING GATES Installation manual

Mighty Mule Automatic Gate Opener SystemFOR DUAL SWING GATES Installation manual
Installation Manual
for the
®
E-Z GATE OPENER
250
UL325 SERIES
¨
™
1-800-543-GATE (4283) • www.mightymule.com
LIS
TED
75
Automatic Gate Opener System
for Single Swing Gates Only
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 the most current UL 325, the standard which regulates
gate opener safety, as established and made effective March 1, 2000, by Underwriters Laboratories Inc.
3121 Hartsfield Road • Tallahassee, Florida, USA 32303
GTO Sales: 1-800-543-GATE (4283) or (850) 575-0176 • Fax (850) 575-8912
or GTO Technical Service: 1-800-543-1236 or (850) 575-4144 • Fax (850) 575-8950
www.mightymule.com
©2002 GTO, Inc.
/ rev - 02/18/03
RB250-INST
The Mighty Mule 250 is intended for use with single vehicular swing gates
and is classified to be used in Class I 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.
Restricted Access Vehicular Gate Opener–Class IV: A vehicular gate opener (or system) intended for use in a
guarded industrial location or building such as an airport security area or other restricted access locations not
servicing the general public, in which unauthorized access is prevented via supervision by security personnel.
Conversion Chart
Converting Metric Units to English Equivalents
When You Know
Multiply By
To Find
Symbol
centimeters
meters
kilograms
0.3937
3.2808
2.2046
inches
feet
pounds
in. (or ")
ft. (or ')
lb. (or #)
Converting English Units to Metric Equivalents
When You Know
Multiply By
To Find
Symbol
inches
feet
pounds
2.5400
0.3048
0.4535
centimeters
meters
kilograms
cm
m
kg
Converting Temperature
deg. Celsius
deg. Fahrenheit
(ºC x 1.8) + 32 deg. Fahrenheit
(ºF-32) ÷ 1.8
deg. Celsius
ºF
ºC
FOR YOUR RECORDS
Please record the product serial number (located on the opener housing), 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
KEEP THESE INSTRUCTIONS FOR FUTURE REFERENCE
Gate Opener Class Categories -------------------------------------------------------------inside cover
Units and Standards Conversion Chart ---------------------------------------------------inside cover
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
Parts List --------------------------------------------------------------------------------------page 8
Tools and Materials You May Need ----------------------------------------------------- page 9
Technical Specifications -------------------------------------------------------------------page 10
Installation Overview -----------------------------------------------------------------------page 11
Installation of the Mounting Hardware---------------------------------------------------page 12
Mounting the Opener -----------------------------------------------------------------------page 16
Installation of the Positive Stops ----------------------------------------------------------page 16
Preparing to Activate the System ---------------------------------------------------------page 17
Wiring the Receiver ------------------------------------------------------------------------ page 18
Mounting the Receiver -------------------------------------------------------------------- page 18
Powering the System ------------------------------------------------------------------------page 19
Connecting the Battery ----------------------------------------------------------------page 20
Connecting the Transformer ----------------------------------------------------------page 20
Setting the Closed Position Limit ---------------------------------------------------------page 22
Setting Your Personal Transmitter Code-------------------------------------------------page 23
Enabling the Auto-Close Feature ---------------------------------------------------------page 24
Connecting Additional Safety Devices ---------------------------------------------------page 25
Connecting Accessories --------------------------------------------------------------------page 26
FINAL STEP ---------------------------------------------------------------------------------page 27
Troubleshooting Guide -------------------------------------------------------------------- page 27
Warranty and Repair Service --------------------------------------------------------------page 29
Accessory Catalog --------------------------------------------------------------------------page 30
4 1/2" x 4 1/2" Setback Template --------------------------------------------------------insert
®
E-Z GATE OPENER
250
UL325 SERIES
™
1-800-543-GATE (4283) • www.mightymule.com
PLEASE READ THIS FIRST!
Thank you for purchasing a Mighty Mule 250—GTO's "do-it-yourself" automatic single gate swing opener! When correctly
installed and properly used, your Mighty Mule 250 will give you many years of reliable service. Please read the following
information and watch the enclosed videotape to ensure you have the correct system for your particular needs and enable you
to properly install your Mighty Mule 250.
The Mighty Mule 250 is designed for installation on a pull-to-open single leaf swing gate (a gate that opens into the
property). The gate must not exceed 12 feet in length nor weigh more than 250 pounds (please see Technical Specifications
on page 10). The gate must be level, plumb and swing freely on its hinges (NO WHEELS). The Mighty Mule 250 can be
used on vinyl, aluminum, chain link, farm tube, panel and wrought iron gates. Use on solid surface gates is not
recommended. Solid surface gates have a high resistance to wind. If the wind is strong enough it could damage the gate
opener.
The Mighty Mule 250 accommodates accessories such as; extra transmitters, digital keypads, push buttons, intercoms,
telephone entry, and other contact (edges) and non-contact (photo beams) safety devices. These optional accessories (see the
Accessory Catalog on page 30) are available at most authorized Mighty Mule retail stores or authorized GTO service centers.
Your store should be able to special order any accessory not in stock. If your store cannot special order accessories, please
call the GTO Sales Department at 1-800-543-GATE (4283).
The Mighty Mule 250 features inherent obstruction sensing. This safety feature makes the gate stop and reverse direction
when it comes in contact with an obstruction.
PLEASE NOTE—The Mighty Mule 250 will NOT meet the requirements of the following applications:
Swing gates longer than 12 feet or weighing more than 250 pounds;
Slide gates;
Dual gates;
Push-To-Open gates (gates that open out from property);
Solar applications;
Gates that need automatic locks;
Heavy duty or commercial uses;
Gate opening sensors;
If you have a requirement for one or more of these applications, please call GTO at (800) 543-GATE [4283] or (850) 575-0176
for assistance.
IMPORTANT:
The Mighty Mule 250 E-Z Gate Opener will not function until the transformer is installed and the system is activated
following the steps on pages 19-22.
The Mighty Mule 250 circuitry is designed to only operate with the transformer connected to the opener and plugged into
an AC outlet. The battery in the Mighty Mule 250 will provide approximately 12-15 open and close cycles during a power
outage. If the transformer is disconnected or the AC power is interrupted for a prolonged period of time, the battery will
eventually drain down and the opener will not operate. When the power is restored it could take up two (2) hours to fully
recharge the battery. Limited use may begin with 15 minutes after AC power is restored.
Following these instructions carefully and in order will assure that your Mighty Mule 250 will give you many years of
reliable service.
iii
IMPORTANT SAFETY INSTRUCTIONS
Automatic gate openers produce high levels of force. Consumers should understand and inform all users of the potential
hazards associated with improperly designed, installed, and maintained 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 we cannot envision each and every
potential use or applications of the gate opener, the safety precautions and warnings contained in this manual are not
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
that can result in serious injury, or death.
symbol. The symbol identifies conditions
Not following the instructions in this manual may also result in damage to the opener or its components.
Mighty Mule 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:
Front Mount
Disconnecting the Opener
1.
2.
3.
Turn gate opener power OFF.
Remove hairpin clip, clevis pin, and washer from
front mount.
Pull front mount away from gate bracket.
Clevis Pin
Gate Bracket
The gate can be opened and closed manually when the
opener is disconnected.
Washer
ON/OFF switch is
on bottom of opener
Hairpin Clip
F
F
O
N
O
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.
VING
Can Ca
use Inj GATE
ury or De
ath
MO
ER
E-Z GA
TE OP
EN
LIS
TED
US
®
1
®
S E R
I E S
250
IMPORTANT SAFETY INSTRUCTIONS
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.
Driveway
ZONE 1
Entrapment Zones:
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 or post
ZONE 2
ZONE 5
ZONE 3
ZONE 4
Gate in the Open Position
2
IMPORTANT SAFETY INSTRUCTIONS
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 safety edges and photo beams provide additional protection against entrapment (see page 5).
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.
Driveway
10'
10'
10'
Moving Gate
Area
NEVER INSTALL
any control device
within gray area
10'
3
IMPORTANT SAFETY INSTRUCTIONS
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 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 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 controls away from children and unauthorized users; store controls where children and unauthorized users do
not have access to them.
6.
KEEP GATES PROPERLY MAINTAINED. Always turn power to opener OFF before preforming any
maintenance. Clean the push-pull tube with a soft, dry cloth and apply silicone spray to it at least once per month.
7.
Service the gate and gate opener regularly. Grease hinges, spray push pull tube with high quality silicon and replace
the battery every two (2) years.
8.
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.
9.
Disconnect the opener ONLY when the power is TURNED OFF and the gate is NOT moving.
10.
Make arrangements with local fire and law enforcement for emergency access.
11.
Distribute and discuss copies of the IMPORTANT SAFETY INSTRUCTIONS section of this manual with all
persons authorized to use your gate.
12.
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
IMPORTANT SAFETY INSTRUCTIONS
Secondary Means of Protection Against
Entrapment
As specified by Gate Operator Safety Standard, UL 325 (30A.1.1), automatic gate openers shall have provisions for, or be
supplied with, at least one independent primary and one independent secondary means to protect against entrapment. The
Mighty Mule 250 utilizes Type A, an inherent (i.e., built-in) entrapment sensing system as the primary type of entrapment
protection. Also, the Mighty Mule 250 has provisions for the connection of Type B2 protection to be used as the secondary
type of entrapment protection, if desired.
1. For gate operators 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.
Leading Edge Contact Sensor on both sides of the gate
Post Edge Contact Sensor on both sides of the gate
®
US
LISTED
®
E-Z GATE OPENER
250
S E R I E S
MOVING GATE
Can Cause Injury or Death
Bottom Edge Contact Sensor on both sides of the gate
ENTRAPMENT ALARM (UL 325; 30A.1.1A)
The Mighty Mule 250 is designed to stop and reverse within 2 seconds when the gate comes in contact with an
obstruction or when an object activates the contact sensors. 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 a manual input (hardwired cycle input) and the gate returns to
a fully open or fully closed position.
5
IMPORTANT SAFETY INSTRUCTIONS
Required Safety Precautions for Gates
Install Warning Signs
Warning signs included alert people of automatic gate operation and are required when installing the Mighty Mule 250.
Furthermore, a walk-through gate must be installed if pedestrian traffic is expected near the vehicular gate. We recommend
using the Bulldog Pedestrian Gate Lock (Call the GTO Sales Department at 1-800-543-4283) for controlled access.
Bulldog Gate Lock
Pedestrian Gate
Contact Sensor
Warning Sign
(recommended, not included)
¨
LIS
T ED
75
®
E-Z GATE OPENER
250
S E R I E S
MOVING GATE
Can Cause Injury or Death
Vehicular Gate
Contact Sensor
Contact Sensor
(recommended, not included)
(recommended, not included)
Entrapment Protection
GTO’s inherent obstruction settings may not be sensitive enough to prevent bodily injury in some circumstances. For this
reason, safety devices such as contact sensors (safety edges) and non-contact sensors (photo beams), which stop and reverse
gate direction upon sensing an obstruction, are required for augmented protection against entrapment.
Warning Signs
The warning signs (at right) must be
installed on both sides of the gate.
! WARNING
Moving Gate Can Cause
Injury Or Death
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.
6
IMPORTANT SAFETY INSTRUCTIONS
These warning labels should be placed at the locations specified below. If any of them are missing, immediately contact
GTO for free replacements at 1-800-543-4283.
! WARNING
UL325 SERIES
™
Logo and warning labels (2) installed on each side of
opener housing
Moving Gate Can Cause
Injury Or Death
(113.4 kg)
(3.7 m)
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.
Product identification and manual operation
instruction label (1) installed at the rear of
the opener housing
Warning signs (2 enclosed) to be installed on each side
of the gate (3—5 feet above the bottom of the gate)
7
Gate Opener Parts List
Opener and Mounting Hardware
4 1/2" x 4 1/2"
Setback Template (1)
®
E
E-Z GAT
ly
Assemb
Bracket ual
Post
tion Man
of the
allation the Installa
See Inst and 6 in
5
pages
Transformer (1)
R
Customer Support Card (1)
Extra 15 Amp Fuse (1)
Gate Opener (1)
¨
75
LISTED
®
250
IES
25 SER
UL3
ENER
TE OP
E-Z GA
Gate Bracket (1)
E
GAT
Death
NG
ury or
MOVI
use
Can Ca
! WARNING
Closed Position
Stop Plate (1)
Post Bracket (2)
Inj
GTO Transmitter (1)
Moving Gate Can Cause
Injury Or Death
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.
Receiver (1)
Warning Signs (2)
Post Pivot Bracket (1)
Hardware
3/8" x 8" Bolt (4)
3/8" Washer (9)
3/8" x 3" Bolt (2)
3/8" Lock Washer (7)
2" Receiver Mounting Screw (1)
8" Nylon Cable Tie (14)
OPENE
3/8" x 2" Bolt (1)
5/16" x 1-3/4" Bolt (1)
3/8" x 1-3/8" Clevis Pin (2)
Hairpin Clip (2)
8
5/16" Washer (1)
3/8" Nut (7)
5/16" Nut (1)
Tools and Materials You May Need
Tools Needed
• Safety Glasses
• Power Drill
• Open End Wrenches — 7/16" and 9/16"
• 3/8" Drill Bit
• Hacksaw or Heavy Duty Bolt Cutters
• Slotted (Flat Bladed) Screwdriver
• Phillips Screwdriver
• Tape Measure
• Level
• Wire Strippers
• C-Clamps — small, medium, and large
ALSO, YOU WILL NEED THESE ITEMS BEFORE YOU BEGIN THE INSTALLATION
•
The gate needs a stop post for the open position. This post is not provided. You will also need hardware for
mounting the closed position stop plate. See Installation of the Positive Stops on page 16 for more information.
•
If your fence post is made of wood and is less than 6" in diameter or 6" square, see page 12.
•
If your fence post is larger than 6" in diameter you will need threaded rods or carriage bolts longer than 8".
See page 14.
•
If you have thin walled tube or panel gates, see Recommended Reinforcement Examples on page 12.
•
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, step 2; page 15, step 10.
•
If you will be plugging the transformer into an outside outlet you will need a weatherproof housing for the outlet
and transformer. Available at most retail centers.
9
Technical Specifications
MIGHTY MULE 250
DRIVE
• Low friction screw drive (linear actuator) rated for -5 ºF to +160 ºF (-19 ºC to +88.8 ºC).
• Powered by a 12 Vdc motor with integral case hardened steel gear reducer. Motor speed reduced to 270 rpm.
• Maximum opening arc of 110º. Approximate 90º opening time is 18 to 20 seconds, depending on weight of gate.
POWER
• 12 Volt, 1.2 Amp hour sealed lead acid battery. The charging circuit built in to the Mighty Mule 250 is designed for
the GTO battery. To avoid possible damage to the Mighty Mule 250 and the battery, ONLY use GTO replacement
batteries.
CONTROL
•
•
•
•
GTO microprocessor-based control board is designed for single leaf, pull-to-open gate installations.
Auto-memorization of digital transmitter code and limit positions.
GTO remote-mounted RF receiver tuned to 318 MHz.
Adjustable range of push-pull tube is 2" to 12". Opener length with push-pull tube fully retracted is 371/4", mounting
point to mounting point.
• Optional auto-close (60 second) with audible warning, inherent obstruction sensitivity built in.
• Fully compatible with push button controls, digital keypads, other safety devices, etc.
• Audio entrapment alarm sounds if unit encounters an obstruction twice while opening or closing.
OPERATIONAL CAPACITY
• Maximum Gate Length: 12 feet; Maximum Gate Weight: 250 pounds.
Gate Length
Gate Cycling Chart
Estimated number of cycles per day.
12 ft.
up to 10 ft.
120
100
80
60
130
110
90
70
150 lb.
Gate Weight
200 lb.
250 lb.
100 lb.
An operation cycle is one full opening and closing of the gate.
10
Installing the Mighty Mule 250
Installation Overview
The diagram shown below is an example of a pull-to-open installation on a single gate chain link fence. Mounting the
opener on a masonry column requires special procedures; call GTO Technical Service at 1-800-543-1236 if you intend to
mount the opener on a column.
Gate Swings Evenly and Freely
Hung Firmly and Plumb
Receiver
Horizontal Cross Member
Post Bracket Assembly
Single Gate Opener
GTO indoor
Transformer
Closed Position Positive Stop Plate
®
US
LISTED
®
E-Z GATE OPENER
250
S E R I E S
MOVING GATE
Can Cause Injury or Death
(surge protector not supplied)
Gate Bracket
Warning Sign
Low Voltage Wire from Transformer
Contact Sensor
recommended but not included
Fence Post Set in Concrete
Contact Sensor
recommended but not included
Preparation of the Gate
Step 1
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 200 lb.
should have ball bearing hinges with grease fittings.
Horizontal Cross Member
CL
Step 2
The fence post must be secured in the ground with
concrete so it will not twist or flex when the opener is
activated. To prevent accelerated wear and tear of the
gate hardware and gate opener, be sure to position the
opener near the centerline of the gate. 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.
Vertical Cross Member with
Horizontal Cross Member
CL
11
Installation of Mounting Hardware
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.
Wooden Post
Metal Plate
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.
Wooden Post
Metal Plate
Post
Bracket
Post Bracket
Post
Pivot Bracket
Post Pivot Bracket
On round posts of 6" diameter or larger, the post pivot bracket may not
be necessary for the installation. In this instance, the two post brackets
are mounted by themselves.
Larger than 6" diameter post
Center of Gate Hinge
GATE
4 1/2"
4 1/2"
Pull-to-Open Installation
IMPORTANT:
We strongly recommend using steel pipe, thick walled PVC pipe, 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 when the opener is installed.
Recommended Reinforcement Examples
PVC or Steel Pipe Cut in Half
(not supplied)
Gate Bracket
Gate Bracket
Panel Gate
Gate Bracket
1" x 6" Wood Reinforcement
Thin Walled Tube Gate
Wood or Metal
Reinforcement
(not supplied)
12
Determining the Mounting Position
of the Post Bracket Assembly and the Gate Bracket
Step 3
Study the 4 1/2" x 4 1/2" setback template (see insert) provided with this manual. Once you are familiar with its
illustrations, cut and save the template from the insert. The template will determine the correct position of the post pivot
bracket before mounting the opener on the fence post.
Post Bracket Assembly
Step 4
Insert the 3/8" x 2" bolt through the center hole of the post brackets and post
pivot bracket as shown. Fasten a 3/8" washer, lock washer and nut on the end
of the bolt. DO NOT overtighten the nut because the post pivot bracket will
have to be adjusted later.
Step 5
Holding the post pivot bracket assembly on the fence post, place one end of
setback template over center of gate hinge and the other end of template over
the post pivot bracket hole (either of the two mounting holes in post pivot
bracket can be used) where the opener will be attached. Be sure to hold the
template at a 90º angle between these two points and measure 4 1/2" back
from the center of the gate hinge. You will need to rotate the post pivot
bracket or the entire post bracket assembly to align it with the square angle
of the template (see the examples below). THE ANGLE BETWEEN THE
GATE HINGE AND THE POST PIVOT BRACKET MUST MATCH
THE ANGLE OF THE SETBACK TEMPLATE.
3/8" x 2" Bolt
Post Bracket
Post Pivot Bracket
Post Bracket
3/8" Washer
3/8" Lock Washer
3/8" Nut
Examples of a 4 1/2" x 4 1/2" Setback
Washer
Washer
Center of Gate Hinge
Center of Gate Hinge
Fence Post
Fence Post
GATE
GATE
Post Bracket
Post
Bracket
4 1/2"
4 1/2"
5/16" x 1 3/4"
Bolt
5/16" x 1 3/4" bolt
90o
Post
Pivot Bracket
Post
Pivot Bracket
4 1/2"
90o
4 1/2"
NOTE: If you move the post pivot bracket, be sure one of the post bracket holes is
aligned with the rest of the assembly (the center hole should already have a bolt
through it). Flipping the Post Pivot Bracket over gives more position options.
Step 6
Post Bracket Assembly
Use C-clamps to temporarily attach the post bracket
assembly to the fence post in the position that best
satisfies the 4 1/2" x 4 1/2" setback.
Fence Post
13
Step 7
Front Mount
Attach the gate bracket to the front mount of the opener
using a clevis pin, washer and hairpin clip. Now attach the
rear mount of the opener to the post pivot bracket, that is
clamped to the fence post, using the clevis pin washer and
hairpin clip.
Clevis Pin
Clevis Pin
Gate Bracket
Rear Mount
Washer
Hairpin Clip
Opener
Washer
With the gate in the open position (80º to 110º from its
closed position), adjust the post bracket assembly and gate
bracket until the opener is level. While holding the opener
level, use C-clamps to temporarily attach the gate bracket in
it's position on the gate.
Post Pivot Bracket
Hairpin Clip
Post Bracket Assembly
IMPORTANT: Make sure Push Pull Tube is
fully retracted as shown. Rotate if necessary.
Post Bracket Assembly
Level Opener
LEVEL hori
Push Pull Tube
Fully Retracted
zontal cros
s member
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Gate In Open Position Fence Post
After verifying that you have complied with the 4 1/2" x 4 1/2" setback, insert the 5/16" x 1 3/4" bolt through the aligned holes
of the post bracket and post pivot bracket (illustrated below) and fasten it with the 5/16" washer and nut. IMPORTANT: If
you loosened the clamp on the post bracket assembly to achieve the 4 1/2" x 4 1/2" setback, tighten it in its new position and
recheck the gate bracket with the gate in the open position (move the gate bracket and re-clamp it if necessary).
IMPORTANT
Closed Position
Make sure there is adequate clearance between opener and gate in the open and closed positions
Verify the Position of the Gate
Bracket and Post Bracket Assembly:
With the gate in the open position, make sure the following
conditions are met:
1 The opener is level.
2 The 4 1/2" x 4 1/2" setback measurement is correct .
3 There is sufficient clearance between opener and gate in the
open and closed positions.
Open Position
14
Installing the Post Bracket Assembly and Gate Bracket
Step 7
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.
EXAMPLES
Mark fence post through TOP VIEW
middle of bracket slots
Step 8
and drill 3/8" holes
Drill 3/8" holes into fence post
as marked.
Round Metal Post
Step 9
Fasten post bracket assembly to
the fence post using
(4) 3/8" x 8" bolts, washers,
lock washers, and nuts
(provided). Remove excess
bolt length extending beyond
the tightened nuts with a
hacksaw or bolt cutters.
Square Metal Post
SIDE VIEW
Post Bracket
Assembly
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.
Square Wood Post
Remove excess bolt length with hacksaw or bolt cutters
Step 10
Round Wood Post
Gate In Open Position 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.
LEVEL ho
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rizontal cr
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Mount gate bracket using (2)
3/8" x 3" bolts, washers, lock washers,
and nuts (provided). Cut off excess bolt
length extending beyond the tightened
nuts.
Mark cross member through middle of
gate bracket slots and drill 3/8" holes
Gate Bracket Mounting Examples
FRONT VIEW
SIDE VIEW
FRONT VIEW
SIDE VIEW
Mounting Plate Created for Decorative Gate
(required but not
supplied)
Round Tube & Chain Link Gate
Remove excess bolt length with hacksaw or bolt cutters
Square Tube Gate
15
Mounting the Opener
Step 11
Attach the opener to the securely bolted post bracket assembly and gate bracket using clevis pins, washers, and hairpin clips.
Verify that the opener is level and adjust the post bracket assembly if necessary.
Post Bracket Assembly
bolted to fence post
Level Opener
LEVEL hori
zontal cros
s member
Gate Bracket bolted
to gate cross member
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Clevis Pin, Washer, and Hairpin Clip
Gate In Open Position Fence Post
Clevis Pin, Washer, and Hairpin Clip
Installation of the Positive Stops
The positive stops hold the gate firmly in the open and closed positions. The positive stops also form the
boundaries of the gate operating arc and help stabilize the gate. Moreover, a stable gate maintains the long life of
your automatic gate opener system.
Step 12
Gate Hinge
With the gate at its maximum open position, measure the
distance from the gate hinge to the end of the gate. At
approximately 2/3 of this distance (using the hinge as your
starting point), place a mark on the ground directly under
the gate. Install the open position stop at this mark (see
illustration). The open position stop post may be made of
wood, metal, or concrete and should be firmly secured in the
ground (we recommend setting it in concrete). When the
open position stop post is in the ideal position, the gate will
strike the post just as the opener motor shuts down.
Closed Position Stop Plate
The gate opens to 110º (max.)
Wood, metal, or concrete post set in concrete.
Open Position Stop
Step 13
Remove hairpin, clevis pin, and washer 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.
SIDE VIEW
Gate Post
Use the appropriate hardware for your type of gate (use
U-bolts if you have a tube or chain link gate; wood or lag
screws for wood gates; etc.). This hardware is not provided.
Closed Position Stop Plate mounted on metal post with U-bolts.
Fence Post
TOP VIEW
16
Preparing to Activate the System
Check List
• The gate is plumb, level, and swings smoothly on its hinges.
• After measuring with the 4 1/2" x 4 1/2" setback template, the post bracket assembly
was bolted to the fence post.
• A plate or support was added for the gate bracket (if necessary).
• The opener is level and mounted on the centerline of the gate.
• Positive stops are installed.
In order to have easy access to the control board during the rest of
the installation, remove the opener and remount it upside down.
ON/OFF
Switch
Control Board Access Panel
Battery Access Panel
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Control Board Access Panel
Step 14
Remove the Control Board Access Panel on
the bottom of the opener arm.
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17
Wiring the Receiver
Step 15
COMMON
CYCLE
EDGE
RADIO
SAFETY
RED
18 VAC
INPUT
SET
CLOSE
LIMIT
BLACK
RED
Insert wire into
terminal block.
GREEN
Close and lock
wire in place.
BLK
GREEN
2
1
15 AMP
The receiver wire has three leads. Connect the RED,
BLACK and GREEN leads to the RADIO
TERMINAL BLOCK on the control board. Insert
each wire into its corresponding terminal block and
secure the wires by pressing down on the white
terminal block tabs until they lock in place. (shown
below).
No-Tool Terminal Blocks
Wire from Receiver
Mounting the Receiver
Consider the following when mounting the receiver:
• Standard receiver cable length is 10 feet (receivers with a longer cable are available as
special order items; call the GTO Sales Department). NEVER splice receiver cable!
• DO NOT run cable in conduit containing AC wiring.
• The receiver range can vary from 50 to 100 feet depending upon weather, topography,
and external interference.
Step 16
Use the screw or ty wrap provided to secure the receiver in place.
FCC Regulation
This device complies with FCC rules Part 15. Operation is subject to the
following conditions:
1. This device may not cause harmful interference.
2. This device must accept an interference that may cause undesired
operation.
Transmitter distance may vary due to circumstances beyond our control.
NOTE: The manufacturer is not responsible for any radio or TV
interference caused by unauthorized modifications to this equipment.
Such modifications could void the user’s authority to operate the
equipment.
18
Powering the System
Following these instructions carefully will assure that your Mighty Mule 250 will give you many years
of reliable service.
IMPORTANT INFORMATION, please read:
The Mighty Mule 250 E-Z Gate Opener will not function until the transformer is installed
and the system is activated following the steps on pages 20-22.
The Mighty Mule 250 circuitry is designed to only operate with the transformer connected to
the opener and plugged into an AC outlet. The battery in the Mighty Mule 250 will provide
approximately 12-15 open and close cycles during a power outage. If the transformer is
disconnected or the AC power is interrupted for a prolonged period of time, the battery will
eventually drain down and the opener will not operate (this is normal). When the power is
restored it could take up two (2) hours to fully recharge the battery. Limited use may begin
with 15 minutes after AC power is restored.
The transformer is designed and intended for indoor use. If the transformer will be plugged
only into an outside electrical outlet, a weatherproof cover or housing (available at local
electrical supply stores) must be used.
The only wire acceptable for use with GTO transformers is; 16 gauge, dual conductor, multistranded, direct burial, 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. Telephone wire and solid core wire
do not deliver enough voltage for your gate opener to function properly and will cause the
system to stop working.
Avoid splicing wires together. Splicing permits corrosion and seriously degrades the wire's
ability to carry an adequate current. If you must splice wires contact GTO Technical Service
at 1-800-543-1236.
Do not run more than 1000 feet of wire. If your gate is more than 1000 feet from an AC
power source, you will need to run an AC power source to the gate or within 1000 feet
Comply with all local codes.
19
Connecting the Battery
Battery Access Panel
Step 17
Remove the Battery Access Panel on
the bottom of the opener arm.
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Step 18
US
®
Make sure the opener power switch is in the OFF
position. Connect the RED battery wire to the
POSITIVE (+) terminal on the battery. The
BLACK wire should already be connected to the
NEGATIVE (–) terminal from the factory.
Replace the Battery Access Cover.
RED wire to POSITIVE (+) terminal
RED
IMPORTANT: Pay close attention to the color
of the wires. If the wires are connected
incorrectly, the control board will be damaged.
BLACK
BLACK wire to NEGATIVE (–) terminal
TIP: Apply a small dab of petroleum jelly to the
terminals to help prevent corrosion.
Connecting the Transformer
Step 19
Select the 110 Volt electrical outlet into which you will plug the transformer. Lay the 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 mowers, weed eaters, and grazing animals. Be sure to bury the wire laid in the trench.
Step 20
Bring enough wire up through the
PVC conduit to allow for gate
movement from open to closed
position. See example right.
GTO indoor
Transformer
®
US
LISTED
®
E-Z GATE OPENER
250
S E R I E S
MOVING GATE
Can Cause Injury or Death
(surge protector not supplied)
Low Voltage Wire
20
IMPORTANT: The charging circuit built in to the Mighty Mule 250 is designed for the GTO
battery. To avoid possible damage to the Mighty Mule 250 or the battery, ONLY use GTO
replacement batteries.
Step 21
15 AMP
Strip 3/16" off the ends of the low voltage wire and twist
tightly. Insert these ends to the 18 VAC INPUT terminal
block located on the control board (see illustration at
right). The wires can be inserted into either terminal
regardless of color. Be certain not to let the exposed
wires touch each other!
CYCLE
18 VAC
INPUT
COMMON
Close and lock
wire in place.
EDGE
Insert wire into
terminal block.
SAFETY
2
RED
Secure the wires by pressing down on the white terminal
block tabs until they lock in place. A dab of household
petroleum jelly on each terminal will help prevent
corrosion.
1
BLK
GREEN
RADIO
LEARN
TRANSMITTER
Wire from
Transformer
No-Tool Terminal Blocks
Step 22
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.
Spade Tongue Terminal
(not provided)
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.
Step 23
Plug the transformer into the electrical outlet and turn the power
switch on the opener to the ON position.
The use of a surge protector with the transformer is strongly
recommended.
Transformer
SURGE PROTECTOR
Make sure the exposed wires do not touch each other!
NOTE: In some cases the battery may need to be charged
for at least 1 hour before proceeding to the next step.
21
Programming the Closed Limit Position
Transformer MUST be plugged in before
proceeding with this next section.
Fully Open Position
Your Mighty Mule 250 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 FOUR STEPS:
Fully Closed Position
Control Board
Step 1
N
O
Confirm that the power switch in the ON position, the gate is
in the OPEN POSITION and the operator is mounted upsidedown with “SET CLOSE LIMIT" program button is visible
on the control board.
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Step 2
250
Activate your opener by pressing the entry transmitter. Your
gate should now be moving from the fully open position
toward the closing position. Prepare to STOP gate when it
reaches the desired closed position by pressing the entry transmitter again. The optimum CLOSED POSITION is
when the gate closes firmly, without excess tension, against the gate post. The motor should run for one-half
second after the gate closes against the gate post. This step may be repeated until desired close position is
achieved. If this step requires you to cycle the opener more than 8-10 times, please allow the battery to recharge at
least 1 hour before trying again. Once the desired CLOSE position has been achieved, proceed to step 3.
LIS
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Step 3
RED LED
GREEN LED
CYCLE
COMMON
EDGE
RADIO
LEARN
TRANSMITTER
SAFETY
RED
BLK
Press the transmitter button and allow the gate to return to the
fully open position. YOUR CLOSED POSITION LIMIT IS NOW
PROGRAMMED.
GREEN
Step 4
WHITE LED
YELLOW LED
15 AMP
With your gate firmly closed. Program the closed limit setting by
PRESSING & HOLDING the “SET CLOSE LIMIT" button on
the control board for 5 seconds.
18 VAC
INPUT
SET
CLOSE
LIMIT
Set Close Limit Button
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 CLEAR your CLOSED LIMIT setting and follow steps 1-4 again.
CLEARING PROGRAMMED CLOSED LIMIT SETTING:
If you make a mistake and set the limit at the wrong position – press your transmitter to return the gate to its fully opened
position, then press and hold the "SET CLOSE LIMIT" button for 10 seconds. This will clear the memory for the closed
limit position. Follow steps 1-4 again.
22
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 250. 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
Grasp the sides of the access cover and slide it away from the
transmitter button (see illustration). When the access cover is removed,
the battery and the DIP switches will be exposed. To set a new code,
use a small screwdriver to move the switches.
, Inc
.
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. “Teach” the New Code to Control Board Memory
A.
B.
C.
D.
E.
Unscrew and remove the electronic access cover on the bottom of the opener.
Press and hold transmitter button.
Press and hold the LEARN TRANSMITTER button on the control board
until the YELLOW LED light goes out.
Release transmitter button.
Release LEARN TRANSMITTER button. The new code is stored in control
board memory.
YELLOW LED
15 AMP
LEARN
TRANSMITTER
COMMON
CYCLE
EDGE
SAFETY
RED
BLK
GREEN
RADIO
18 VAC
INPUT
SET
CLOSE
LIMIT
Learn Transmitter Button
23
Enabling the Auto-Close Feature
The Mighty Mule 250 is equipped with a built-in auto-close feature option. The auto-close feature will automatically activate
the Mighty Mule 250 and close the gate if it is left at the open position more than 60 seconds. The auto-close feature comes
disabled from the factory, allowing the gate to remain open until activated by a transmitter, push button or keypad.
To enable the auto-close feature, place the small black jumper connector on the JMP1 plug on the control board as shown in
Illustration "A" below. When the auto-close feature is activated, an audible warning will sound for 2.5 seconds prior to the
gate closing. This audible warning alerts anyone standing close to the gate that the gate is about to move. The audible
warning will only sound if the gate is closed by the auto-close feature, not by keypads, transmitters or other manual control
devices.
IMPORTANT: We recommend leaving this audible warning feature enabled if the auto-close feature is enabled. The audible
warning can be disabled by connecting the jumper to JMP2, see Illustration "B" below. The only reason the audible warning
should be disabled is if it disturbs live stock in a way that would create a safety hazard.
Jumper ON
Auto-Close
Alarm Jumper
Jumper OFF
1
P
JM
Auto-Close
Jumper
2
P
JM
JMP1
JMP2
15 AMP
COMMON
CYCLE
EDGE
SAFETY
RED
BLK
GREEN
RADIO
LEARN
TRANSMITTER
18 VAC
INPUT
SET
CLOSE
LIMIT
Illustration A
Illustration B
AUTO-CLOSE JUMPER
JMP1
JMP1
AUTO-CLOSE WARNING JUMPER
Jumper connector removed
but left attached to one plug
for safe keeping - Auto-Close
feature deactivated.
Factory Setting
JMP2
JMP2
Jumper connector in place Auto-Close feature active.
24
Jumper connector removed
but left attached to one plug
for safe keeping - Auto-Close
alarm feature activated.
Factory Setting
Jumper connector in place Auto-Close alarm feature deactived.
Connecting Additional Safety Devices
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 UL (United Laboratories) and national and regional safety codes.
Call GTO Sales at 1-800-543-4283 for information on compatible
products for your specific application.
The Mighty Mule 250 will ONLY accept accessory devices with normally open contact output.
Contact Sensors (safety edges)
If not installing a contact sensor skip to next section.
PLEASE NOTE: Contact sensors are not included with the Mighty Mule 250.
The Mighty Mule 250 is equipped with built-in obstruction sensitivity. The opener is designed to stop and reverse the gate
for 2 seconds when it comes in contact with an obstruction. However, obstruction sensitivity, although functioning properly,
may not be sensitive enough to prevent bodily injury in some circumstances. To augment your protection against entrapment, GTO recommends using some form of additional safety
device. When installed, contact sensors must be mounted in
compliance with UL 325, Underwriters Laboratories safety
standard for gate openers. Review page 5 for information about
mounting requirements for safety edges ("contact sensors").
15 AMP
Refer to the sensor manufacturer’s instructions for information
about installing these devices on a vehicular gate.
CYCLE
COMMON
LEARN
TRANSMITTER
EDGE
RADIO
SAFETY
RED
BLK
GREEN
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.
18 VAC
INPUT
SET
CLOSE
LIMIT
Contact Sensor Input Connection:
Connect one of the contact sensor wires to the COMMON
terminal and the other to the EDGE terminal on the Mighty
Mule 250 control board.
Wire from Contact Sensor (safety edge)
Activation of the contact sensor while the gate is in
motion will cause the gate to stop and reverse for 2
seconds.
25
Non-Contact Sensors (photo beams)
If not installing a non-contact sensor skip to next section.
PLEASE NOTE: Non-contact sensors are not included with the Mighty Mule 250.
The Mighty Mule 250 can also accept "Safety" input from normally open "dry-contact" output devices such as safety beams
connected to the SAFETY input terminal.
Refer to the sensor manufacturer’s instructions for
information about installing these devices on a vehicular gate.
15 AMP
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.
COMMON
CYCLE
EDGE
SAFETY
This input is ONLY monitored when the gate is
closing. Activating the non-contact (obstructing
the safety beam path) will cause the gate to
reverse to the fully open position.
RED
Connect one of the non-contact sensor dry contact output wires
to the COMMON terminal and the other to the SAFETY
terminal on the Mighty Mule 250 control board.
BLK
GREEN
Non-Contact Sensor Connection:
RADIO
LEARN
TRANSMITTER
18 VAC
INPUT
SET
CLOSE
LIMIT
Output Wire from Non-Contact Sensor (photo beam)
Connecting Accessories
If not connecting accessories skip to next section.
The Mighty Mule 250 can accept NORMALLY OPEN CONTACT accessories, such as; Push Button Entry Devices and
Key Pads.
Refer to the sensor manufacturer’s instructions for information
about installing these devices on a vehicular gate.
15 AMP
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.
OPEN
STOP
CLOSE
STOP
Wire from Accessory
26
CYCLE
Each activation of the accessory will cause the gate
to cycle as follows:
COMMON
LEARN
TRANSMITTER
EDGE
RADIO
SAFETY
RED
Connect one of the accessory wires to the COMMON terminal
and the other to the CYCLE terminal on the Mighty Mule 250
control board.
BLK
GREEN
Accessory Input Connection:
18 VAC
INPUT
SET
CLOSE
LIMIT
FINAL STEP
Installation is Complete
Replace control board access cover. If you were working with the opener with the control board
access facing up, remove the opener arm from both mounts and remount it in the upright
position. Failure to remount opener in the up right position will cause damage to the opener.
Gate Opener in the upright position ®
LIS
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OPENER®
250
UL325
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y or Deat
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Troubleshooting Guide
If your gate opener does not function properly after it is installed, use this guide before calling the
GTO Service Department.
Routinely grease the gate hinges at least 4 times a year; more frequently if the gate is near a coastal area. Spray push pull tube
with a high quality silicon and wipe clean regularly and replace the battery every two (2) years.
LEDs Indicators Diagnostic:
GREEN LED
RED LED
WHITE LED
15 AMP
CYCLE
COMMON
EDGE
RADIO
LEARN
TRANSMITTER
SAFETY
RED
BLK
RED: Charging indicator. This LED will cycle
ON and OFF as it trickle charges the battery
under normal operation.
YELLOW LED
GREEN
GREEN: AC power indicator.
a. ON: 18 Vac power is present. This
LED will be on regardless of the ON/
OFF switch position.
b. OFF: No AC power is present. The
battery will not be charged. The
operator may still operate, however
AC power should be restored as soon
as possible.
18 VAC
INPUT
SET
CLOSE
LIMIT
YELLOW: RF receiver signal indicator. Blinking
on/off as RF signal is received. This LED is typically blinking under normal operation.
a. ON: RF signal (318 MHz) is received.
b. OFF: RF signal (318 MHz) is NOT received.
WHITE: Activity/status indicator. (Normally OFF)
a. This LED will blink once whenever there is a change at any of the inputs.
27
If the Opener Does Not Work:
Be sure the opener power switch is in the ON position then follow the diagram below.
Start here:
Is the
transformer
plugged in and
AC power
present at the
outlet?
NO
Is the Green LED
light on?
Restore AC power to the opener
and allow at least 1 hour for the
battery to recharge.
NO
NO
YES
YES
Is the 15 AMP
fuse blown?
NO
YES
YES
YES
Replace the 15 AMP
fuse. Never replace with
a higher AMP rated fuse.
If the opener does not
function immediately,
allow at least 1 hour for
the battery to recharge.
NO
Is the Red LED
light on?
The Red LED should cycle on
and off as it trickle charges the
battery. If the Red LED stays on,
check the battery connections. If
the opener does not function
immediately, allow1 hour for the
battery to recharge.
YES
Restore AC power to the opener
and allow at least 1 hour for the
battery to recharge.
NO
Has the
battery been
allowed to charge for
at least 1 hour after
installing the
transformer?
Does the
Yellow LED light
blink when the
transmitter button
is pressed?
NO
Call the GTO Technical
Service Department at
1-800-543-1236
YES
Has the
battery been
allowed to charge for
at least 1 hour after
installing the
transformer?
Repeat the procedure for
setting your transmitter
code, found on page 23.
YES
If you are unable to make a diagnoses from this chart, please call the GTO Technical Service Department
at 1-800-543-1236. We can resolve most installation issues over the phone in just a few minutes. Please use
a phone that will allow you to call from your gate.
The Gate CLOSES Then OPENS Partially 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. Closed position is set too tight and binds.
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. Binds against the open position stop.
The GTO, Inc. Technical Service Department is open
Monday – Thursday 7:30 A.M. – 5:30 P.M.
and Friday 8:00 A.M. – 12:00 P.M. (Eastern Time)
Telephone (800) 543-1236 • (850) 575-4144
Fax (850) 575-8950 • Web site: www.mightymule.com
E-Mail: techsupport@gtoinc.com
28
Warranty and Repair Service
If your Mighty Mule 250 is not operating properly, DO NOT RETURN to the store. First try the
TROUBLE SHOOTING GUIDE beginning on page 27. If that doesn't help, call GTO's Service
Department at 1-800-543-1236, or (850)575-4144 and we will be glad to help you solve any
problems you may still have.
You will need the serial number (located on the control box cover) and date of purchase when calling for assistance.
If repair or replacement of your gate opener is necessary, the Service Department will assign a Return Goods
Authorization (RGA) number to you.
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. Ship the package(s) 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.
®
E-Z GATE OPENER
250
UL325 SERIES
™
1-800-543-GATE (4283) • www.mightymule.com
One Year Limited Warranty
250®
Your Mighty Mule
is warranted by the manufacturer against defects in materials and manufacturer
workmanship for a period of one (1) year from date of purchase, provided the recommended installation
procedures have been followed.
In the case of product failure due to defective material or manufacturer workmanship within the one (1) year
warranty period, the opener will be repaired or replaced (at the manufacturer's option) at no charge to the customer,
if returned to GTO, Inc., 3121 Hartsfield Road, Tallahassee, Florida, USA 32303. IMPORTANT: Call (850)
575-4144 or Fax (850) 575-8950 for a Return Goods Authorization (RGA) number before returning item(s) to
the factory. Products shipped to the factory without an RGA number will not be accepted. Replacement or repaired
parts are covered by this warranty for the remainder of the one (1) year warranty period or six (6) months,
whichever is greater. GTO will pay shipping costs (equal to United Parcel Service ground rate) for return to owner
of item(s) repaired under warranty.
An additional one (1) or two (2) year Extended Warranties are available during the original one (1) year warranty
period. Fill out the from on inside back cover of this manual and mail to the address shown on the form.
The manufacturer will not be responsible for any damage or cost incurred in the removal of the defective parts for
repair, or for the reinstallation of those parts after repair. This warranty shall be considered void if damage to the
product was due to improper installation or use, tampering (if the seal on the housing is broken), connection to an
improper power source, or if damage was caused by lightning, wind, fire, flood, insects, or other natural agent. This
warranty gives you specific legal rights, and you may also have other rights which may vary from state to state.
This warranty is in lieu of all other warranties, either expressed or implied. NOTE: Verification of the warranty
period requires copies of receipts or other proof of purchase. Please retain these records.
After the warranty period expires, GTO (or one of its authorized service centers) will perform necessary repairs for a
nominal fee. Call GTO at (800) 543-1236 or (850) 575-4144 for more information.
29
Accessory Catalog
These Accessories are Available From Your Retail Store
GTO Digital Keypad (FM137)
The specially designed digital keypad can easily be installed as a wireless or wired keypad. It can be
programmed to use up to fifteen different personal identification number (PIN) codes. Each code is face
programmable with additional security features built in. Requires 3 AA batteries (not included).
Mighty Mule Entry Transmitter (FM135)
The Mighty Mule entry transmitter, with adjustable code settings, is standard equipment with Mighty
Mule systems. Battery included.
Key Chain Mini Transmitter (FM134)
The Key Chain Mini Transmitter is a miniature version of the Mighty Mule entry transmitter and has the
same adjustable code settings. Battery included.
Push Button (Doorbell) Control (FM132)
Unlit doorbell button for remote entry or exit control. Connects directly to the control board and uses
16 gauge, multi-stranded low voltage wire (not included).
Pin Lock (FM133)
The Pin Lock substitutes for the clevis pin at the front mount of the opener. Helps prevent theft of the opener
from the gate, while allowing quick release of the opener.
Low Voltage Wire (RB509)
The 16 gauge, multi-stranded, dual conductor Low Voltage Wire connects the AC powered
transformer to the control board. Also used for the connection of accessories, such as 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 Battery (RB422)
Standard 12 volt, 1.2 amp-hour, maintenance-free battery for the Mighty Mule FM250 gate
opener system. This is the only battery approved for use with the Mighty Mule FM250 gate
opener system. Life expectancy is 3-5 years.
30
The Following Accessories Are Available Through Your
Retail Store's Special Order Desk.
Dual Transmitter (RB742)
The Dual Transmitter is a two button transmitter for remote control of two separate gate
openers, or a gate opener and garage door opener (see Garage Door Receiver). Battery
included.
Triple Transmitter (RB743)
The Triple Transmitter is a three button transmitter for remote control of three separate gate
openers and/or garage door openers (see Garage Door Receiver). Battery included.
HEDDOL
UNIVE
F
MORE
IVERRSAL
DECE
L 29
4
Garage Door Receiver (RB709)
The Garage Door Receiver allows you to use the same Mighty Mule entry transmitter (see
dual and triple transmitters) to operate your gate opener and your garage door opener.
Compatible with most garage door openers.
Replacement Transformer (RB566)
Standard 18 volt AC transformer for maintaining the battery included with the Mighty Mule gate opener.
This is the only transformer approved for use with the Mighty Mule.
If you have a question about any special order item,
just call 1-800-543-GATE!
Mighty Mule Accessory Limited One Year Warranty:
GTO, Inc., gate openers and accessories are warranted by the manufacturer against defects in materials and
manufacturer workmanship for a period of one (1) year from date of purchase, provided the recommended
installation procedures have been followed.
In the case of product failure due to defective material or manufacturer workmanship within the one (1) year
warranty period, the product will be repaired or replaced (at the manufacturer’s option) at no charge to the
customer, if returned to GTO, Inc., 3121 Hartsfield Road, Tallahassee, Florida, USA 32303. IMPORTANT:
Call (850) 575-4144 or Fax (850) 575-8950 for a Return Goods Authorization (RGA) number before
returning accessory to factory. Products received at the factory without an RGA number will not be
accepted. Replacement or repaired parts are covered by this warranty for the remainder of the one (1) year
warranty period or six (6) months, whichever is greater. GTO, Inc. will pay the shipping charges (equal to
United Parcel Service GROUND rate) for return to the owner of items repaired under warranty.
The manufacturer will not be responsible for any charges or damages incurred in the removal of the defective
parts for repair, or for the reinstallation of those parts after repair. This warranty shall be considered void if
damage to the product(s) was due to improper installation or use, connection to an improper power source, or if
damage was caused by lightning, wind, fire, flood, insects or other natural agent.
After the one (1) year warranty period, GTO, Inc. or one of its authorized service centers will make any
necessary repairs for a nominal fee. Call GTO at (800) 543-1236 for more information. This warranty gives
you specific legal rights, and you may also have other rights which may vary from state to state. This warranty
is in lieu of all other warranties, expressed or implied. NOTE: Verification of the warranty period requires
copies of receipts or other proof of purchase. Please retain these records.
GTO, Inc.
3121 Hartsfield Road • Tallahassee, Florida, USA 32303 • (850) 575-0176 • Fax (850) 575-8912 • Web site www.mightymule.com
31
Installation Check List
This operator conforms to CLASS I applications.
The installer verifies that:
____ WARNING SIGNS are securely installed, one on each side of the gate panel.
____ Non-contact sensors (photo beams) are installed, one across each side of the gate opening.
____ Contact sensors (safety edges) are installed and are functional at all hazard or pinch points.
____ Hard wired contact sensors are located and wired to avoid any mechanical damage.
____ All controls intended to reset the gate opener after an obstruction are installed in sight of gate.
____ Customer has read all the instructions and is clear on the proper use of the gate operator.
____ Customer understands proper use of all control devices used with the gate opener.
____ Customer understands that this gate is for vehicular use ONLY. Pedestrians MUST NOT use this gate.
____ A separate gate or entrance is installed for pedestrian use (if pedestrian access is desired).
____ Closed position stop plate is securely fastened.
____ The position of the post bracket assembly complies with the 4 1/2" x 4 1/2" setback requirement.
____ All power cables, receiver cables, and transformer plugs are securely fastened.
____ Petroleum jelly is applied to the control board terminals and battery connections.
____ Safety instructions are reviewed and understood by the customer.
____ Customer and authorized users understand how to disconnect the operator for manual operation of the gate.
____ Customer has filled out the customer support card and mailed it to GTO, Inc.
____ Customer is reminded to retain all receipts of Mighty Mule purchase (receipts mandatory for warranty repairs).
____ The completed installation should be photographed from both the front and back of the gate. Photo was dated.
Customer’s Signature
Installer Signature (if not the same)
Date
Date
Extended Warranty for Mighty
Mule 250 E-Z Gate Opener
$50.00 within 90 days — for a one (1) Year Extended Warranty
$75.00 within 90 days — for a two (2) Year Extended Warranty
®
Mighty Mule 250 E-Z Gate
Opener Limited Warranty
E-Z GATE OPENERS
An EXTENDED WARRANTY is now available for
Mighty Mule 250 E-Z Gate openers. The Warranty will
provide an additional ONE (1) or TWO (2) Year
Limited Warranty after the original ONE (1) Year
Limited Mighty Mule 250 Warranty you received with
your original purchase.
GTO, Inc., gate openers are warranted by the manufacturer against defects in materials and
manufacturer workmanship for the extended period you choose following the original one (1) year
warranty, provided the recommended installation procedures have been followed. This warranty is
only valid if the serial number registered matches the serial number of the gate opener claimed under
this warranty. Please note that batteries are only covered under the original one (1) year warranty,
and are not covered under the extended warranty.
In the case of product failure due to defective material or manufacturer workmanship within the
extended warranty period, the product will be repaired or replaced (at the manufacturer s option) at
no charge to the customer, if returned freight prepaid to GTO, Inc., 3121 Hartsfield Road,
Tallahassee, Florida, USA 32303. IMPORTANT: Call (850) 575-0176 or Fax (850) 575-8950 for a
Return Goods Authorization (RGA) number before returning to factory. Products received at the
factory without an RGA number will not be accepted. Replacement or repaired parts are covered by
this warranty for the remainder of the entended warranty period or six (6) months, whichever is
greater. GTO, Inc. will pay the shipping charges (equal to United Parcel Service GROUND rate) for
return to the owner of items repaired under warranty.
This offer is only valid within 90 days of your
Mighty Mule 250 purchase. To take advantage of this
offer, fill in the information below and send this form,
your payment for a ONE (1) or TWO (2) Year
Warranty and a copy of your original Mighty Mule
250 Opener purchase receipt to:
The manufacturer will not be responsible for any charges or damages incurred in the removal of the
defective parts for repair, or for the reinstallation of those parts after repair. Any components that are
not GTO specified (i.e. battery and transformer) will void the warranty. This warranty shall be
considered void if damage to the product(s) was due to improper installation or use, connection to an
improper power source, or if damage was caused by lightning, wind, fire, flood, insects or other
natural agent.
Extended Warranty - GTO, Inc.
3121 Hartsfield Rd.
Tallahassee, FL 32303.
An EXTENDED WARRANTY receipt will be sent to you for
your records. You will need to keep this Warranty receipt and
your original purchase receipt in the event you require
warranty work in the future.
IMPORTANT: Serial Number
After the extended warranty period, GTO, Inc. or one of its authorized service centers will make any
necessary repairs for a nominal fee. Call GTO at (800) 543-4283 for more information. This
warranty gives you specific legal rights, and you may also have other rights which may vary from
state to state. This warranty is in lieu of all other warranties, expressed or implied. NOTE:
Verification of the warranty period requires copies of receipts or other proof of purchase. Please
Located on the cover of the opener.
Purchase information.
Last Name
First Name
M.I.
Address
A copy of the Mighty Mule purchase receipt is mandatory.
Store Name
City
State
Phone
Zip
Country
Date of Purchase
Store Address
City
e:mail
State
Zip
Please make payment with credit card, money order or cashiers check. DO NOT SEND CASH
One (1) Year Extended Warranty
$50.00
TYPE OF PAYMENT
Money Order
Credit Card Number
Expiration Date
Signature
Cashiers Check
Two (2) Year Extended Warranty
$75.00
Master Card
VISA
This information will be entered in our customer support
systems data base, which will enable us to provide
immediate and personalized assistance when you call
our toll free support number (1-800-543-GATE) with
questions about installation, programming, maintenance,
or technical support. Your personal information is
viewed by GTO to be confidential and proprietary.
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