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.
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.
3121 Hartsfield Road • Tallahassee, Florida, USA 32303
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.
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.
Please record the product serial number (located on the control box cover), 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 forproof of purchase.
Table of Contents
Gate Opener Class Categories -------------------------------------------------------------inside cover
Units and Standards Conversion Chart---------------------------------------------------inside cover
PLEASE READ THIS FIRST!------------------------------------------------- page iii
Important Safety Instructions -------------------------------------------------- page 1
KEEP THESE INSTRUCTIONS FOR FUTURE REFERENCE
Disconnecting the Opener-------------------------------------------------------------page 1
Important Safety Instructions for the Consumer -----------------------------------page 2
Secondary Means of Protection Against Entrapment -----------------------------page 4
Required Safety Precautions for Gates --------------------------------------------- page 5
Warning Signs and Labels ------------------------------------------------------------page 6
Parts List ---------------------------------------------------------------------------------page 7
Technical Specifications---------------------------------------------------------------page 9
Installation Overview ---------------------------------------------------------------- page 10
Installation of the Mounting Hardware--------------------------------------------- page 11
Mounting the Opener ------------------------------------------------------------------page 15
Installation of the Positive Stops -----------------------------------------------------page 15
Mounting the Control Box ------------------------------------------------------------page 17
Setting the Closed Position -----------------------------------------------------------page 18
Powering the System ------------------------------------------------------------- page 19
Solar Chart ------------------------------------------------------------------------------page 19
Connecting the Transformer ---------------------------------------------------------- page 19
Control Board Settings----------------------------------------------------------- page 22
4 1/2" x 4 1/2" Setback Template ---------------------------------------------- insert
AUTOMATIC GATE OPENER
PLEASE READ THIS FIRST!
Thank you for purchasing a Mighty Mule Gate Opener®—GTO's "do-it-yourself" automatic gate opener! When
correctly installed and properly used, your Mighty Mule Gate Opener® 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. Furthermore, this manual and the videotape will enable you to properly install your Mighty Mule
Gate Opener®.
The Mighty Mule Gate Opener® is designed for installation on a pull-to-open single leaf gate (a gate that opens into
the property). Using an accessory kit, the Mighty Mule Gate Opener® can accommodate a push-to-opensingle leafgate (a gate that opens out from the property). The gate must not exceed 16 feet in length nor weigh more than 350
pounds (please see Technical Specifications on page 9). The Mighty Mule Gate Opener® can be used on vinyl,
aluminum, chain link, farm tube, and wrought iron gates. Use on solid surface gates is not recommended. Solid
surface gates have a high resistance to the wind; if the wind is strong enough, the opener will obstruct and stop.
The Mighty Mule 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 MuleAccessory 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.
The Mighty Mule Gate Opener® features adjustable obstruction sensing. This safety feature makes the gate stop
and reverse direction 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 Gate Opener® also has an adjustable auto-close feature. After the gate reaches the fully open
position, it can be set to remain open for 1 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:
Swing gates longer than 16 feet or weighing more than 350 pounds;
Slide gates;
Heavy duty or commercial uses;
Professional installation;
please call GTO at (800) 543-GATE [4283] or (850) 575-0176 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 videotape and read these instructions carefully and completely
to become familiar with all parts and installation steps.
iii
IMPORT ANT SAFETY INSTRUCTIONS
Because automatic gate openers produce high levels of force, consumers need to know the potential hazards associated with
improperly designed, installed, and maintained gate opener systems. Keep in mind that the gate opener is just onecomponent 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 thiswarning 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:
Disconnecting the Opener
1. Turn control box power switch OFF.
2. Remove hairpin clip, clevis pin, and washer from
front mount.
3. Pull front mount away from gate bracket.
The gate can be opened and closed manually when the
opener is disconnected.
NOTE: Substitute Master® Pin Locks for the clevis
pins to prevent unauthorized removal of the
opener from the gate (see Accessory
catalog).
CAUTION: Disconnect the
opener ONLY when the control
box power switch is OFF and
the gate is NOT moving.
Front Mount
Clevis Pin
Gate Bracket
Washer
Hairpin Clip
1
IMPORT ANT SAFETY INSTRUCTIONS
For The Consumer
WARNING: To reduce the risk of injury or death:
1.READ AND FOLLOW ALL INSTRUCTIONS.
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 shall not open into public access areas.
I. Before Installation
1.Verify this opener is proper for the type and size of gate, and its frequency of use.
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 5).
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.
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.Installation of additional safety equipment such as safety edges (or photoelectric sensors) is suggested for
augmented protection against entrapment (see page 5).
4.Determine the best obstruction sensing setting for this installation (see Potentiometers on page 23). The gate
MUST stop and reverse on contact with an obstruction or when an object activates the non-contact sensors. After
adjusting the force or the limit of travel, retest the gate opener. Failure to adjust and retest the gate opener
properly can increase the risk of injury or death.
5.Mount access controls away from the gate (minimum distance is 10 feet). The user must have full view of the gate
but be unable to touch it while operating the controls.
6.If push buttons or key switches are installed, they should be within sight of the gate, yet located far enough from it
(at least 10 feet) so the gate cannot be touched while it is in operation. Do not operate any control without watching
the movement of the gate.
7.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.
8.Secure outdoor or easily accessed gate opener controls in order to prohibit unauthorized use of the gate.
2
IMPORT ANT 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 replacements.
2.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.
3.KEEP GATES PROPERLY MAINTAINED. Clean the push-pull tube with a soft, dry cloth and apply silicone
spray to it at least once per month.
4.Test your gate opener monthly and service it regularly. The gate MUST stop and reverse on contact with a
obstruction or when an object activates the non-contact sensors. If these functions are observed to operate
improperly, discontinue use and contact the GTO Service Department immediately.
5.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.
6.Disconnect the opener ONLY when the control box power switch is OFF and the gate is NOT moving.
7.Distribute and discuss copies of the IMPORTANT SAFETY INSTRUCTIONS section of this manual with all
persons authorized to use your gate.
8.
SAVE THESE INSTRUCTIONS.
3
IMPORT ANT SAFETY INSTRUCTIONS
STATUS
BATT
PWR. SW.
Secondary Means of Protection Against
Entrapment
As specified by Underwriters Laboratories Inc. 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 Gate Opener
entrapment protection. Also, the Mighty Mule Gate Opener
to be used as the secondary type of entrapment protection, if desired.
1. For gate operators utilizing a non-contact sensor (e.g., photoelectric sensor– Type B1) in accordance with
UL 325 (51.8.4 [h]):
A. Refer to the sensor manufacturer's instructions on the placement of non-contact sensors for each type of application.
B. Care shall be exercised to reduce the risk of nuisance tripping, such as when a vehicle trips the sensor while the gate
is still moving.
C. One or more non-contact sensors shall be located where the risk of entrapment or obstruction exists, such as the
perimeter reachable by a moving gate or barrier.
2. 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 mounted 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.
®
utilizes Type A, an inherent (i.e., built-in) entrapment sensing system, as the primary type of
®
has provisions for the connection of Type B1 or B2 protection
ENTRAPMENT ALARM (UL 325; 30A.1.1A)
The Mighty Mule Gate Opener® is designed to stop and reverse for 2 seconds when the gate comes in contact with
an obstruction or when an object activates the non-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 an intended signal (e.g., from a transmitter) and the
gate returns to a fully open or fully closed position.
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(bottom right of control box)
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4
IMPORT ANT SAFETY INSTRUCTIONS
Required Safety Precautions for Gates
Install W arning Signs
Warning signs alert people of automatic gate operation and are required when installing the Mighty Mule 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.
Bulldog Pedestrian
Gate Lock
(recommended, not included
Pedestrian Gate
)
Safety Edge
(
suggested, not included
)
Warning Sign
Vehicular Gate
Safety Edge
(
suggested, not included
)
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 augmented protection against entrapment.
Warning Signs
The warning signs (at right) must
be installed on both sides of the
gate (see page 6 for details).
!
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.
5
IMPORT ANT SAFETY INSTRUCTIONS
These warning labels should be found at the locations specified below. If any of them are missing, immediately contact GTO
for replacements.
!
WARNING
!
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
separate entrance.
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.
warning signs (2 enclosed) to be installed on each side
of the gate (3–5 feet above the bottom of the gate)
Conforms to UL 325 STANDARDS
Maximum Gate: 500 lb. (226.7 kg); 16 ft. (4.8 m)
USC
L
I
S
E
T
#xxxxxxx
TO MANUALLY OPEN AND CLOSE THE GATE:
1. Turn control box power switch OFF.
2. Disconnect front mount from gate bracket.
3. Pull front mount away from gate bracket.
Voltage: 12 Vdc; Frequency: 0 Hz; Power: 41.4 W
D
Class I, II and III Vehicular Swing Gate Operator.
Serial Number: XXXXXXXXXX
warning labels (2) installed on each side of
operator housing
Series
product identification and manual operation instruction label (1)
installed on control box cover
Disconnect operator ONLY when the control box power
switch is OFF and the gate is NOT moving.
GTO, Inc. Tallahassee, Florida USA
6
RB2000
Single Gate Opener Parts List
Opener and Mounting Hardware
Gate Bracket (1)
Closed Position
Stop Plate (1)
Post Bracket (2)
8" Nylon Cable Tie (14)
4 1/2" x 4 1/2"
Setback Template (1)
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4 1/2' Power Cable (1)
Hardware
Gate Opener (1)
®
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Post Pivot Bracket (1)
Customer Support Card (1)
Installation Video (1)
®
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E
P
O
E
T
A
G
-Z
E
3/8" x 8" Bolt (4)
3/8" x 3" Bolt (2)
3/8" x 2" Bolt (1)
5/16" x 1-3/4" Bolt (1)
3/8" x 1-1/8" Clevis Pin (2)
3/8" Washer (9)
3/8" Lock Washer (7)
5/16" Washer (1)
3/8" Nut (7)
5/16" Nut (1)
Hairpin Clip (2)
2" Receiver Mounting Screw (4)
7
Single Gate Opener Parts List (continued)
Control Box and Electrical Components
Battery (1)
Receiver (1)
GTO Transmitter(1)
Transformer (1)
!
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.
Control Box Lid (1)
Control Box (1)
Warning Signs (2)
Tools Needed
• Power Drill
• Open End Wrenches — 3/8", 7/16", 1/2", 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 (Some of these items can
be found in the Accessory Catalog on page 35):
•The gate needs a stop post for the open position. This post is not provided. See Installation of the PositiveStops
on page 15 for more information.
•Additional low voltage wire may be needed; length depends upon the distance between the transformer power
supply and the control box. See Powering the System on page 19, and the Accessory Catalog.
•If your gate is more than 1000' away from an ac power source you will need to use at least one Mighty Mule SolarPanel to trickle charge the battery. See the Accessory Catalog.
•If your fence post is made of wood and is less than 6" in diameter or 6" square, see page 11.
•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 RecommendedReinforcement Examples on page 11.
•Depending on the type of gate, a horizontal cross memberor mounting plate may be needed to mount the front
of the opener and gate bracket to the gate. See page 10, step 2; page 14, step 10.
•Power cables 25', 35', and 40' long are available for mounting your control box away from the gate (i.e., in a more
secure location). See the Accessory Catalog.
8
Technical Specifications
MIGHTY MULE GATE OPENER
DRIVE
• Low friction screw drive (linear actuator) rated for -30 ºF to +200 ºF (-34 ºC to +93 ºC).
• Powered by a 12 V motor with integral case hardened steel gear reducer. Motor speed reduced to 220 rpm. Generates
330 ft.. lb. of torque at 12 V.
•Maximum opening arc of 110º. Approximate opening time (90º): 15 to 17 s, depending on weight of gate.
POWER
• The system is powered by a 12 Vdc, 7.0 Ah, sealed, rechargeable acid battery.
• Battery charge is maintained by a 120 Vac, 18 Vac output transformer rectified to 14.5 Vdc (20 VA) through the GTO
control board. Two (2) blade-style control board fuses are 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.
• Battery charge is maintained by GTO Solar Panel Charger: float voltage of 14.5 Vdc output from a 19
silicon alloy panel. Generates minimum of 5 W at 300 mA. A gated diode on the control board prevents battery
discharge.
CONTROL
• GTO microprocessor-based control board is set for single leaf, pull-to-open gate installations. DIP switches can be
adjusted to accommodate an optional kit for push-to-open gates (see Accessory Catalog).
• Control board has temperature compensated circuits.
•A circuit on the control board regulates charging. "Sleep draw" is 40 mA; "active draw" is 2 to 5 A.
• Auto-memorization of digital transmitter code.
• GTO remote-mounted RF receiver tuned to 318 MHz.
• Limit controls are mechanical. Adjustable range of push-pull tube is 7
3
tube fully retracted is 33
/
4", mounting point to mounting point.
1
/
2" to 11
1
/
2". Opener length with push-pull
• Adjustable auto-close timer (OFF to 120 s), inertia, and obstruction sensitivity using three (3) potentiometers.
• Power terminal bock accommodates a transformer and solar panels.
• DIP switches simplify setup of gate opener.
• Accessory terminal block fully compatible with push button controls, digital keypads, safety loops, etc.
• 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" x 8
1
/
2"
• Depending upon the length of the gate leaves and the number of operational cycles* per day, the Mighty Mule Gate
Opener® can open single gates weighing up to 350 lb.—if all installation procedures have been
properly followed.
Gate Capacity Chart
16 ft.
14 ft.
12 ft.
3.5-10 ft.
Gate Length
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 19 or call (800) 543-GATE [4283] or (850) 575-0176 for more information.
* An operation cycle is one full opening and closing of the gate.
These specifications are subject to change without notice.
OPERATIONAL CAPACITY
(estimated number of cycles based on use with a transformer)
135
145
155
165
120
130
140
150
105
115
125
135
NONE
85
95
105
NONE
NONE
60
70
50 lb.100 lb.150 lb.250 lb.350 lb.
Gate Weight
9
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