Mighty Mule Automatic Gate Opener SystemFOR DUAL SWING GATES Installation Manual

©2000 GTO, Inc.RB928 rev - 07/30/01Installation Manualfor theAutomatic Gate Opener SystemFOR DUAL SWING GATES3121 Hartsfield Road • Tallahassee, F

6IMPORTANT SAFETY INSTRUCTIONSThese warning labels should be found at the locations specified below. If any of them are missing, immediately contact

7Dual Gate Opener Parts ListOpener and Mounting HardwareSee Installation of the Post Bracket Assemblypages 5 and 6 in the Installation ManualHairpin

8Tools Needed• Power Drill• Open End Wrenches — 3/8", 7/16", 1/2", and 9/16"• 3/8" Drill Bit• Hacksaw or Heavy Duty Bolt Cutt

9DRIVE• 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 hardene

10Preparation of the Gate LeavesStep 1The gate leaves must be plumb, level, and swing freelyon their hinges. Wheels must not be attached to thegate.

11Installation of Mounting HardwareThe position of the post bracket determines the leverage and efficiency of the opener. The post bracket position a

12Clevis PinHairpin ClipPost Bracket AssemblyOpenerWasherRear MountClevis PinHairpin ClipWasherGate BracketFront MountDetermining the Mounting Positio

13Step 6Study the 4 1/2" x 4 1/2" setback template (see insert) provided with this manual. Once you are familiar with itsillustrations, cut

14Installing the Post Bracket Assembly and Gate BracketStep 7Mark reference points for bolt holes on the fence post through middle of bracket slots.

15Mounting the OpenerStep 11Attach the opener to the securely bolted post bracket assembly and gate bracket using clevis pins, washers, and hairpin cl

VEHICULAR GATE OPENER CLASS CATEGORIESResidential Vehicular Gate Opener-Class I: A vehicular gate opener (or system) intended for use in a home ofone-

16Step 14Attach a vertical closed position stop plate to the SLAVE or SECOND gate.Remove hairpin clip, clevis pin, and washer from front mount and clo

17At this stage of the installation, the openers should be installed on thegate leaves and the open and closed position stops should be in place.Check

18Step 20Make sure the control box power switch is in the OFFposition. Slide the battery into position with its terminals tothe left (see illustratio

19Step 22Insert the stripped wires of the 4 1/2 foot power cable into the appropriateterminals on the FIRST OPERATOR terminal block. The green wire s

20Mounting the ReceiverConsider the following when mounting the receiver:• Standard receiver cable length is 10 feet (receivers with a longer cable a

21DIP Switch Settings for Dual GatesStep 26The four control board DIP switches match the openerswith the type of gate on which they are installed. Fo

22NOTE: This setting will work if you are using CLOSED POSITION STOP PLATESbut WILL NOT work if you are using a LOCKBOTH OPERATORS OPEN SIMULTANEOUSLY

23Potentiometer SettingsThe three (3) potentiometers on the control board operate like a volume control on a radio. They control the auto close timer

24Step 28Reattach front mount to gate bracket using a clevis pin, washer, andhairpin clip. Press the transmitter button to activate the opener anddet

25Powering the SystemInstallation of the TransformerIMPORTANT:• The transformer is designed and intended for indoor use. If the transformer can be pl

Gate Opener Class Categories ----------------------------------------------inside coverUnits and Standards Conversion Chart --------------------------

26Step 36Lay the measured length of low voltage wire in atrench following a path from the selected electricaloutlet to the control box. Wires coming

27Step 40Plug the transformer into the electrical outlet.(Use of a surge protector with the transformer is stronglyrecommended.)HINT: Keep a few mothb

282. Set the transmitter DIP SwitchesThere are nine (9) transmitter DIP switches; each can be placed in one of three differentpositions (+, 0, –). D

29Connecting Additional Safety DevicesThe Mighty Mule Gate Opener® is equipped with built-in obstruction sensitivity. The opener is designed to stop

30Compatible Safety DevicesSafety Edge SensorsMiller Edge, Inc.MC-22ME-110 through 113ME-120ME-123MG-020MT-21 and 22MU-22Tapeswitch Corporation101-B a

31Connecting AccessoriesThe ACCESSORY terminal block is the connection point for accessories such as keypads, push buttons, safety loops,intercoms, et

32Determining The Mounting Positionof The Post Bracket AssemblyStep PTO-1:With the gate leaf closed, adjust the post bracket assembly and thegate brac

33OperatorFence PostGate Post and Gate Cross Member (In Closed Position)POST PIVOT BRACKET level with the horizontal surface of the GATE

34Maintenance & Troubleshooting GuideIf your gate openers do not function properly after installation, use this guide before calling the GTO Servi

35The Gate CLOSES Then Opens Again on its Own:1. Check the position of the mounting brackets and readjust if necessary.2. Check the gate for binding o

PLEASE READ THIS FIRST!AUTOMATIC GATE OPENERiiiBEFORE YOU BEGIN TO INSTALL YOUR AUTOMATIC GATE OPENER:watch the enclosed videotape and read these inst

36If your Mighty Mule Gate Opener® is not operating properly, please follow the steps below:1. First use the procedures found in the Maintenance &

37Column Installation InformationIF THESE OPENERS WILL BE USED WITH GATES THAT ARE MOUNTED ONMASONRY, BRICK, OR ROCK (etc.) COLUMNS:READ THE FOLLOWING

38Master® Pin Lock (FM133)The Master® pin lock substitutes for the clevis pin ateither or both mounting points of the opener. Helpsprevent theft of

39Key Chain Mini Transmitter (FM134)The Key Chain Mini Transmitter is a miniatureversion of the Mighty Mule® entry transmitter andhas the same adjusta

40GTO, Inc.For dual gates or special installation requirements, call toll free:1-800-543-GATEMighty Mule® Limited One Year Warranty:GTO, Inc., gate op

1IMPORTANT SAFETY INSTRUCTIONSBecause automatic gate openers produce high levels of force, consumers need to know the potential hazards associated wit

2IMPORTANT SAFETY INSTRUCTIONSFor The ConsumerWARNING: To reduce the risk of injury or death:1. READ AND FOLLOW ALL INSTRUCTIONS.2. When designing a s

3IMPORTANT SAFETY INSTRUCTIONSIII. After Installation1. Attach the warning signs (included) to both sides of each gate leaf to alert the public of aut

4IMPORTANT SAFETY INSTRUCTIONSSecondary Means of Protection AgainstEntrapmentAs specified by Underwriters Laboratories Inc. UL 325 (30A.1.1), automati

5IMPORTANT SAFETY INSTRUCTIONSInstall Warning SignsEntrapment ProtectionGTO’s inherent obstruction settings, even when properly adjusted, may not be s