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PLEASE READ THIS FIRST!

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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. The video tape is only designed as 

a overview of the installation procedure. You must read the installation manual for detailed 

instructions on gate opener safety and proper use of the gate opener.

Thank you for purchasing a 

Mighty Mule® 350 E-Z Gate Opener

—GTO's "do-it-yourself" automatic gate opener!  

When correctly installed and properly used, your 

Mighty Mule® E-Z Gate Opener

 will give you many years of 

reliable service.  Please read the following information and watch the enclosed 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® E-Z Gate Opener

.  

The 

Mighty Mule® 350 E-Z Gate Opener 

 

is designed for installation on a

 pull-to-open single leaf gate 

(gates that 

open

 into

 the property).  By purchasing an 

accessory bracket (FM148)

, the 

Mighty Mule® E-Z Gate Opener 

can 

accommodate a

 push-to-open

 

single leaf gate (

gates that open 

out

 from the property).  The gate must not exceed 8 

feet and 550 pounds or exceed 16 feet and 150 pounds (please see 

Technical Specifications

 on page 10).  The 

Mighty 

Mule® E-Z Gate Opener

 can be used on vinyl, aluminum, chain link, farm tube, and wrought iron gates.  Use on 

solid (wood) 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® E-Z Gate Opener

 accommodates extra transmitters, digital keypads, solar panels, push buttons, 

automatic gate locks, and other access control products.  These optional accessories (see the enclosed 

Mighty Mule®

 

Accessory Catalog

) are available at most stores.  Your store should be able to special order any accessory not in stock.  

If your store cannot special order accessories, please call the GTO Sales Department (800-543-GATE).

The 

Mighty Mule® E-Z Gate Opener

 features

 adjustable obstruction sensing.  

This safety feature makes the gate 

stop and reverse direction within 2 seconds when it comes in contact with an obstruction.  

MIN

 is the factory setting; 

meaning the gate will exert the minimum force on an obstruction before it stops and reverses direction.

The 

Mighty Mule® E-Z Gate Opener

 also has an

 adjustable auto-close feature

.  After the gate reaches the fully 

open position, it can be set to remain open up to 120 seconds before automatically closing.  Pressing the transmitter 
button at any time after the gate opens fully will cause it to close immediately.  

OFF 

is the factory setting; meaning the 

gate will stay open until you press the transmitter (or keypad, etc.) again.

PLEASE NOTE—

If your application requires any of the following:

 
 

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.

®

E-Z GATE OPENERS

Summary of Contents for Mighty Mule 350

Page 1: ...er 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 prop...

Page 2: ...s intended for use with vehicular swing gates The opener can be used in Class I Class II and Class III applications FOR YOUR RECORDS Please record the product serial number located on the rear of open...

Page 3: ...6 Installation of the Closed Position Stop page 16 Powering the System page 18 Solar Chart page 18 Connecting the Battery page 19 Detailed Wire Routing Diagram page 20 Connecting the Transformer page...

Page 4: ...face gates have a high resistance to the wind If the wind is strong enough the opener will obstruct and stop The Mighty Mule E Z Gate Opener accommodates extra transmitters digital keypads solar panel...

Page 5: ...pener 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 sy...

Page 6: ...er 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...

Page 7: ...careful with moving parts and avoid close proximity to areas where fingers or hands could be pinched 3 Devices such as contact sensors safety edges and non contact sensors photo beams provide additio...

Page 8: ...loth 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 spray 8 To operate this equipment...

Page 9: ...The Mighty Mule utilizes Type A an inherent i e built in entrapment sensing system as the primary type of entrapment protection Also the Mighty Mule has provisions for the connection of Type B2 protec...

Page 10: ...ning signs alert people of automatic gate operation and are required when installing the Mighty Mule E Z Gate Opener Furthermore a walk through gate must be installed if pedestrian traffic is expected...

Page 11: ...Death MOVING GATE E Z GATE OPENER UL325 SERIES 350 TO MANUALLY OPEN AND CLOSE THE GATE 1 Turn opener power switch OFF 2 Disconnect front or rear mount from mounting bracket 3 Pull opener away from mou...

Page 12: ...llation Video 1 Gate Bracket 1 Post Pivot Bracket 1 3 8 Bushings 2 Customer Support Card 1 Post Bracket 2 Closed Position Stop Plate 1 2 Mounting Screw 5 E Z GATE OPENER Transformer 1 10 Battery Wire...

Page 13: ...and the Accessory Catalog If your gate is more than 1000 away from AC ac power source you will need to use at least one Mighty Mule 5 watt Solar Panel FM121 to charge the 12 Volt automotive or marine...

Page 14: ...is 371 4 mounting point to mounting point Adjustable auto close timer OFF to 120 s and obstruction sensitivity Power terminal bock accommodates a transformer or solar panels DIP switches simplify set...

Page 15: ...utomotive or marine type battery in weather proof housing not included Gate Bracket Single Gate Opener Fence Post Set in Concrete Run 1000 max of low voltage wire to control box from transformer wire...

Page 16: ...upplied between the nuts and the fence post to prevent the thrust of the opener from pulling the bolts and washers out of the wood NOTE A fence post smaller than 6 in diameter or 6 square should be ma...

Page 17: ...e the post pivot bracket will have to be adjusted later Step 4 Attach post bracket assembly and gate bracket to the opener with the clevis pins and bushings Secure the clevis pins with hairpin clips 3...

Page 18: ...and readjust the pivot bracket until you can achieve these important clearances With the post pivot bracket in the optimum position for clearance and freedom of movement reattach the opener to the ga...

Page 19: ...t supplied must be used Step 10 Mark reference points for bolt holes on the gate cross member through middle of gate bracket slots Drill 3 8 holes into the gate cross member as marked Mount gate brack...

Page 20: ...st Bracket Assembly bolted to fence post Clevis Pin Bushing and Hairpin Clip Clevis Pin Bushing and Hairpin Clip Gate Bracket bolted to gate cross member Fence Post Step 12 Remove hairpin clevis pin a...

Page 21: ...Cross Member Gate Swings Evenly and Freely Hung Firmly and Plumb Post Bracket Assembly Gate Bracket Single Gate Opener Fence Post Set in Concrete Power Cable Closed Position Positive Stop Plate Prepar...

Page 22: ...s more than 1000 ft from an ac power source you will need to use at least one 5 watt Solar Panel to charge the battery see Accessory Catalog Refer to the Solar Panels and Gate Activity chart below The...

Page 23: ...r mounted in the upside down position remove the Control Board Access Panel on the bottom of the opener arm Connecting the Battery ON O FF ON OF F Control Board Access Cover Control Board Battery Harn...

Page 24: ...connector and in line fuse The wires from the battery harness receiver transformer or solar panel and any accessories that have been installed must be routed down the sides of the opener and flatly o...

Page 25: ...GE WIRE The only wire acceptable for use with GTO products is 16 gauge multi stranded low voltage PVC sheathed wire This particular gauge enables the transformer to provide an adequate charge through...

Page 26: ...es do not touch each other SURGE PROTECTOR Transformer Step 7 Strip 3 16 off the ends of the low voltage wire and twist tightly Insert these ends to the 18 VAC terminal block located on the control bo...

Page 27: ...hst is connected to the AUX OUT terminal and the other to the AUX OUT terminal Wire colors doesn t matterfor this connection ON position provides a continuous voltage to the accessory while the gate o...

Page 28: ...ed to step 3 Step 3 With your gate firmly closed Program the closed limit setting by PRESSING HOLDING the SET LIMIT BUTTON on the control board for 5 seconds Step 4 Save the setting by pressing the tr...

Page 29: ...e obstruction sensitivity or the amount of force the opener will apply to an obstruction before it automatically stops and reverses direc tion for approximately two 2 seconds Use a small slotted screw...

Page 30: ...se a small phillips head screw driver to remove the two screws on the sides of the visor clip and separate the front cover from the transmitter With the front cover removed the battery and the DIP swi...

Page 31: ...t in the control box 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 NOTE Do not mount upsi...

Page 32: ...the power switch 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 Contact Sensor Input Connec...

Page 33: ...ry contact output devices such as photo beams connected to the SAFETY input terminal If not installing a non contact sensor skip to next section PLEASE NOTE Non contact sensors are not included with t...

Page 34: ...to next section 1 ON 2 3 4 15 CHARGING POWER STATUS RF PULL PUSH MODE1 MODE2 LOCK BEACON OFF 120 MIN MAX STALL FORCE CLOSE TIME SET LIMIT LEARN REMOTE AUX OUT SOLAR PANEL 18VAC RECR GRN BLK RED EXIT...

Page 35: ...Depending on how you want your gate to function you can use just one or all types on the same gate Make sure the power switch to the opener is turned OFF before connecting loop wiring to the Mighty Mu...

Page 36: ...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 control board cover facing down Failure to remount op...

Page 37: ...in the closed position 3 8 x 2 Bolt 3 8 Nut Push To Open Bracket optional accessory Post Bracket Post Bracket 3 8 Lock Washer Post Bracket Assembly 3 8 Washer Step 2 After verifying that you have the...

Page 38: ...configured to push the gate open Setting the Open Position Limit Step 1 Confirm that the power switch is in the ON position and the gate is in the CLOSED POSITION Step 2 Activate your opener by press...

Page 39: ...ed to CLEAR your OPEN LIMIT settings and follow steps one 1 to four 4 again CLEARING PROGRAMMED OPEN LIMIT SETTING If you make a mistake and set the limit at the wrong position press your transmitter...

Page 40: ...without reaching the limit Alarm will automatically shut off after 5 minutes Power cycle the unit will also shut off the alarm 5 Learn Remote When a new code is learned from the remote the alarm will...

Page 41: ...CHARGING LED Red Continuously ON Fast charging mode 1 5 Amps charging current Blinking two blinks per second Soak charge Enter this mode after fast charging The battery is almost at full charge in thi...

Page 42: ...factory Write the RGA number issued to you on the outside of the package in LARGE BOLD PRINT Ship the package s freight prepaid to GTO Inc 3121 Hartsfield Road Tallahassee Florida USA 32303 NOTE Prod...

Page 43: ...toward the column It is recommended that you place a steel plate between the opener mounting brackets and masonry surface for additional strength B If a push to open installation is impossible due to...

Page 44: ...tion number PIN codes Each code is face programmable with additional security features built in Wired installations require 16 gauge low voltage multi stranded dual conductor direct burial wire sold s...

Page 45: ...l UL325 Mighty Mule gate opener systems 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 ga...

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