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GTO UL325 SERIES - page 1
© 2004 GTO, Inc. R350INST rev - 04/11/06 Installation Manual for the W ARNING! This equipment is similar to other gate or door equipment and meets or exceeds Underwriters Laboratory Standard 325 (UL 325). Howe ver , gate equipment has hazards associated with its use and theref or e by installing this product the installer and user accept full resp ...
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GTO UL325 SERIES - page 2
VEHICULAR GA TE OPENER CLASS CA TEGORIES Residential V ehicular 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 there with. Commercial/General Access V ehicular Gate Opener -Class II : A vehicular gate opener (or system) intended for ...
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GTO UL325 SERIES - page 3
Gate Opener Class Categories ------------------------------------------------------------- inside cov er Units and Standards Con version Chart --------------------------------------------------- inside cover PLEASE READ THIS FIRST! -------------------------------------------------- page iii Important Safety Instructions ---------------------------- ...
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GTO UL325 SERIES - page 4
PLEASE READ THIS FIRST! iii BEFORE Y OU BEGIN T O INST ALL Y OUR A UTOMA TIC GA TE 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 over view of the installation procedur e. Y ou must read the installation manual f ...
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GTO UL325 SERIES - page 5
1 IMPORT ANT SAFETY INSTRUCTIONS Because automatic gate openers produce high le vels of force, consumers need to know the potential hazards associated with improperly designed, installed, and maintained automated gate opener systems. K eep in mind that the gate opener is just one component of the total gate operating system . Each component must wo ...
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GTO UL325 SERIES - page 6
2 IMPORT ANT SAFETY INSTRUCTIONS For The Consumer W ARNING: T o r educe the risk of injury or death: 1. READ AND FOLLO W ALL INSTR UCTIONS. Failure to meet the requirements set forth in the instruction manual could cause se vere injury and/or death, for which the manufacturer cannot be held responsible. 2. When designing a system that will be enter ...
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GTO UL325 SERIES - page 7
3 IMPORT ANT SAFETY INSTRUCTIONS Moving Gate Area Driveway 10' 10' 10' 10' NEVER INST ALL any control device within gray area Entrapment Zones for a proper Pull-T o-Open installation: Zone 1 – leading edge of the gate and the fence post. Zone 2 – between the gate and the gate post. Zone 3 – the path of the gate. Zone 4 – ...
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GTO UL325 SERIES - page 8
4 IMPORT ANT SAFETY INSTRUCTIONS III. After Installation 1. Attach the warning signs ( included ) to each side of the gate to alert the public of auto matic gate operation. It is your r esponsibility to post warning signs on both sides of your gate. If any of these signs or w arning decals become damaged, illegible or missing, replace them immediat ...
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GTO UL325 SERIES - page 9
5 IMPORT ANT SAFETY INSTRUCTIONS ENTRAPMENT ALARM (UL 325; 30A.1.1A) The Mighty Mule® E-Z Gate Opener is designed to stop and re verse within 2 seconds when the gate comes in contact with an obstruction. Additionally , these openers are equipped with an audio entrapment alarm which will acti vate if the unit obstructs twice while opening or closin ...
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GTO UL325 SERIES - page 10
6 IMPORT ANT SAFETY INSTRUCTIONS Install W arning Signs Entrapment Protection GTO’ s inherent obstruction settings, ev en when properly adjusted, may not be sensitive enough to prevent bodily injury in some circumstances . For this reason, safety de vices such as safety edge sensors (or photoelectric sensors), which stop and re verse gate directi ...
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GTO UL325 SERIES - page 11
7 IMPORT ANT SAFETY INSTRUCTIONS ! Wa rning signs (2 enclosed) to be installed on each side of the gate (3–5 feet above the bottom of the gate) Pr oduct identification label (1) installed under r ear mount on arm. Logo and warning labels (2) installed on each side of opener housing 1-800-543-GA TE (4283) • www .mightymule.com 1. KEEP CLEAR! Gat ...
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GTO UL325 SERIES - page 12
8 P arts List - Opener and Mounting Hardware Hairpin Clip (2) 3/8" x 1-1/2" Clevis Pin (2) 5/16" x 1-3/4" Bolt (1) 3/8" x 2" Bolt (1) 3/8" x 3" Bolt (2) 3/8" x 8" Bolt (4) 8" Nylon Cable Tie (14) 3/8" Washer (9) 3/8" Lock Washer (7) 5/16" Washer (1) 3/8" Nut (7) 5/16" N ...
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GTO UL325 SERIES - page 13
9 T ools Needed • Power Drill • Open End Wrenches — 3 / 8 ", 7 / 16 ", 1 / 2 ", and 9 / 16 " • 3 / 8 " Drill Bit • Hacksaw or Hea vy Duty Bolt Cutters • Small (Flat Bladed) Scre wdriver • Phillips Scre wdriver/ Lar ge • T ape Measure • Lev el • Wire Strippers • C-Clamps — small, medium, and large • ...
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GTO UL325 SERIES - page 14
10 DRIVE • Lo w friction screw driv e (linear actuator) rated for -5 ºF to +160 ºF (-28 ºC to +71 ºC). • Po wered by a 12 V motor with integral case hardened steel gear reducer . Motor speed reduced to 260 rpm. Generates 520 inch lb. of torque at 12 V . • Maximum opening arc of 110º. Approximate opening time (90º): 18 seconds, depending ...
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GTO UL325 SERIES - page 15
11 Preparation of the Gate Step 1 The gate must be plumb, le vel, and swing freely on its hinges. Wheels must not be attached to the gate. The gate must mov e throughout its arc without binding or dragging on the ground . Note that gates o ver 250 lb. should have ball bearing hinges with gr ease fittings. Step 2 The fence post must be secured in t ...
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GTO UL325 SERIES - page 16
12 Thin Walled Tube Gate Steel Pipe Cut in Half Gate Bracket Gate Bracket Wood or Metal Reinforcement Gate Bracket Panel Gate 1" x 6" Wood Reinforcement (not supplied) (not supplied) Installation of Mounting Hardware The position of the post bracket determines the le verage and efficiency of the opener . The post brack et position als ...
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GTO UL325 SERIES - page 17
13 Determining the Mounting P osition of the P ost Bracket Assembly and the Gate Brack et Step 5 W ith the gate in the open position (up to 110º from its closed position), and the opener fully retracted, adjust the post bracket assembly and gate bracket until the opener is le vel. While holding the opener le vel, use C-clamps to temporarily keep t ...
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GTO UL325 SERIES - page 18
14 Gate in the CL OSED POSITION Pinch Area Gate in the OPENED POSITION Pinch Area 2" minimum 2" minimum Be sure gate opener and bracket don't bind. Step 6 When you feel that you hav e the best position for the post piv ot bracket in the open position, insert the 5/16" x 1-3/4" bolt through the aligned holes of the post brac ...
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GTO UL325 SERIES - page 19
15 Installing the P ost Bracket Assembly and Gate Brack et 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 brack et assembly and gate bracket. After marking your reference points, remov e the opener and brackets f ...
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GTO UL325 SERIES - page 20
16 Mounting the Opener Step 11 Attach the opener to the securely bolted post bracket assembly and gate bracket using cle vis pins, bushings, and hairpin clips, or optional Pin Locks (see Accessory Catalog ). V erify that the opener is lev el and adjust the post bracket assembly if necessary . Installation of the Closed P osition Stop The Mighty Mul ...
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GTO UL325 SERIES - page 21
17 At this stage of the installation, the opener should be installed on the gate and the closed position stop should be in place. Check List • The gate is plumb, le vel, and swings smoothly on its hinges. • A plate or support was added for the gate bracket (if necessary). • The opener is le vel and mounted on the centerline of the gate. Horiz ...
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GTO UL325 SERIES - page 22
18 P owering the System IMPORT ANT : • The Mighty Mule 350 is designed and intended for use with a 12 V olt automotiv e or marine type battery . The battery must be placed inside a weatherproof case and located within 6 feet of the opener arm. The 10 foot harness supplied connects the battery to the opener arm. • The battery charge is maintaine ...
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GTO UL325 SERIES - page 23
19 Step 2 Place the 12 V olt automotiv e or marine type battery and its weatherproof case within 6 feet of the fence post where the opener arm is mounted. Step 3 Attach the 10 foot battery harness wires provided, to the terminals of the battery . T ake care to attach the BLA CK wire to the NEGA TIVE terminal and the RED wire to the POSITIVE termina ...
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GTO UL325 SERIES - page 24
20 ON/OFF – o Battery Harness Wi res Tr ansformer Wires Receiver Wires Accessory Wi res Neatly arrange all wires to lay flat as they come out of the opener . MIghty Mule 350 Wire Routing Routing Pin ON/OFF ON/OFF Receiver Wire Battery Harness Wi re Battery Harness In-Line 20 Amp Fu se (included) Battery Harness Connectors 20 The battery harness w ...
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GTO UL325 SERIES - page 25
21 GT O indoor Tr ansformer (surge protector not supplied) Run 1000' (max.) of low voltage wire to control board from transformer (wire not included) . PVC conduit (not included) to protect wire from lawn mowers and weed eaters. Step 5 Select the 120 V olt electrical outlet into which you will plug the transformer . Lay the low voltage wire in ...
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GTO UL325 SERIES - page 26
22 Step 9 Plug the transformer into the electrical outlet. (Use of a surge protector with the transformer is strongly recommended.) Step 8 At the AC outlet strip 1 / 2 " of insulation from the ends of the lo w voltage wire. Attach these stripped ends to the transformer terminals. A dab of household petroleum jelly on each terminal will help pr ...
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GTO UL325 SERIES - page 27
23 1 ON 234 15 CHARGING POWER S TAT US RF PUL L- PUSH MODE1 MODE2 LO CK/BEACON OFF 120 MIN MAX STALL FORCE CLOSE TIME SET LIMIT LEARN REMOTE AU X OUT SOLAR PA NEL 18VAC RCVR GRN BLK RED EXIT SAFETY EDGE CYCLE COMMON LINK Low V oltage Wire from Solar Panel(s) DIP Switches Main DIP Switch Settings (MODES) DIP Switch #1 - Push/Pull-to-Open If your gat ...
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GTO UL325 SERIES - page 28
24 Y our Mighty Mule 350 has two Limit Settings 1) OPEN Limit setting: (Gate in the OPEN POSITION / F ACT OR Y SET & NO T ADJUST ABLE) The open limit setting is the fully open position. 2) CLOSED Limit setting: The CLOSED Limit setting (gate in the CLOSED POSITION) T o achie ve optimum closed position, you are required to complete the follo win ...
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GTO UL325 SERIES - page 29
25 1 ON 234 15 CHARGING POWER ST AT US RF PUL L- PUSH MODE1 MODE2 LO CK/BEACON OFF 120 MIN MAX STALL FORCE CLOSE TIME SET LIMIT LEARN REMOTE AU X OUT SOLAR PA NEL 18VAC RECR GRN BLK RED EXIT SAFETY EDGE CYCLE COMMON LINK MI N M AX ST ALL FORCE Obstruction Sensitivity P otentiometer Setting AL W A YS KEEP SAFETY A T THE T OP OF Y OUR LIST WHEN ADJUS ...
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GTO UL325 SERIES - page 30
26 1 ON 234 15 CHARGING POWER S TAT US RF PUL L- PUSH MODE1 MODE2 LO CK/BEACON OFF 120 MIN MAX STALL FORCE CLOSE TIME SET LIMIT LEARN REMOTE AU X OUT SOLAR PA NEL 18VAC RECR GRN BLK RED EXIT SAFETY EDGE CYCLE COMMON LINK LEARN REMOTE Button 2. Set the transmitter DIP Switches There are nine (9) transmitter DIP switches; each can be placed in three ...
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GTO UL325 SERIES - page 31
27 Installing the R eceiver Use the transmitter to c heck the rang e of the receiver bef ore permanently mounting it . Consider the follo wing when mounting the receiver: • Standard recei ver cable length is 10 feet (receiv ers with a longer cable are av ailable as special order items; call the GTO Sales Department ). NEVER splice recei ver cable ...
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GTO UL325 SERIES - page 32
28 Connecting Additional Safety Devices The Mighty Mule® 350 is equipped with built-in obstruction sensiti vity . The opener is designed to stop and re verse the gate for 2 seconds when it comes in contact with an obstruction. Howe ver , obstruction sensitivity , although functioning properly , may not be sensitive enough to prev ent bodily injury ...
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GTO UL325 SERIES - page 33
29 1 ON 234 15 CHARGING POWER S TAT US RF PUL L- PUSH MODE1 MODE2 LO CK/BEACON OFF 120 MIN MAX STALL FORCE CLOSE TIME SET LIMIT LEARN REMOTE AU X OUT SOLAR PA NEL 18VAC RECR GRN BLK RED EXIT SAFETY EDGE CYCLE COMMON LINK Wi res from Non-Contact Sensor Refer to the sensor manufacturer’ s instructions for information about installing these devices ...
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GTO UL325 SERIES - page 34
30 Wi res from Accessory 1 ON 234 15 CHARGING POWER S TAT US RF PUL L- PUSH MODE1 MODE2 LO CK/BEACON OFF 120 MIN MAX STALL FORCE CLOSE TIME SET LIMIT LEARN REMOTE AU X OUT SOLAR PA NEL 18VAC RECR GRN BLK RED EXIT SAFETY EDGE CYCLE COMMON LINK Connecting Accessories The Mighty Mule® 350 can accept NORMALL Y OPEN CONT ACT accessories, such as; Push ...
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GTO UL325 SERIES - page 35
31 1 ON 234 15 CHARGING POWER S TAT US RF PUL L- PUSH MODE1 MODE2 LO CK/BEACON OFF 120 MIN MAX STALL FORCE CLOSE TIME SET LIMIT LEARN REMOTE AU X OUT SOLAR PA NEL 18VAC RECR GRN BLK RED EXIT SAFETY EDGE CYCLE COMMON LINK Wiring Driveway Loops to the Mighty Mule 350 Wire from L OOP V+ to AU X OUT (+) COM and V– to COMMON NO to EXIT ON 1 2 3 4 5 6 ...
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GTO UL325 SERIES - page 36
32 1 ON 234 15 CHARGING POWER S TAT US RF PUL L- PUSH MODE1 MODE2 LO CK/BEACON OFF 120 MIN MAX STALL FORCE CLOSE TIME SET LIMIT LEARN REMOTE AU X OUT SOLAR PA NEL 18VAC RECR GRN BLK RED EXIT SAFETY EDGE CYCLE COMMON LINK Wiring the Gate Opening Driveway Sensor to the Mighty Mule 350 Wire from Gate Opening Sensor T w isted SHIELD BLACK RED to BLUE Y ...
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GTO UL325 SERIES - page 37
33 Gate in the Closed Position Pinch Area (gray) Gate in the Open Position Pinch Area (gray) 2" minimum 2" minimum Determining The Mounting P osition of The P ost Bracket Assembly Step 1 W ith the gate closed , adjust the post bracket assembly and the gate bracket until the opener is le vel. While holding the opener lev el, use C-clamps t ...
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GTO UL325 SERIES - page 38
34 Step 3 W ith the gate in the fully closed position and the opener retracted, swing the opener to the gate. Mark reference points for bolt holes on gate cross member through middle of gate bracket slots. The opener must be lev el. (Some vertical adjustment is possible by sliding the post bracket assembly up and do wn.) Drill 3 / 8 " holes in ...
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GTO UL325 SERIES - page 39
35 Step 3 W ith the gate in the desired open position PRESS & HOLD the “SET LIMIT" button on the control board for 5 seconds. Step 4 Press the transmitter button and allo w the gate to return to the closed position. Y OUR GA TE’S OPEN POSITION LIMIT IS NOW PR OGRAMMED. TESTING Y OUR OPEN LIMIT SETTING: Press your entry transmitter and ...
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GTO UL325 SERIES - page 40
36 A udible/Buzzer/Alarm F eedback : 1. 1 beep with 2 seconds off : Limit switch error: Limit switch’ s normally open and normally close inputs both open or both shorted. The alarm will automatically shut of f in 4 seconds after the problem is corrected. 2. 5 beeps with 2 seconds off : Lo w battery condition detected: Low battery can occur if the ...
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GTO UL325 SERIES - page 41
37 2. ST A TUS LED (LED1): While the unit is IDLE : 1 blink with 2 seconds off : Free Exit terminal is shorted to common. 2 blink with 2 seconds off : Safety terminal is shorted to common. 3 blink with 2 seconds off : Edge terminal is shorted to common. 4 blink with 2 seconds off : Cycle terminal is shorted to common. LEARN LIMIT Mode : This LED wi ...
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GTO UL325 SERIES - page 42
38 If your Mighty Mule ® Gate Opener is not operating properly , please follow the steps belo w: 1. First use the procedures found in the Maintenance & T roubleshooting Guide ( see page 36 ). 2. If you are unable to solve the problem, call the GT O Service Department at (800) 543-1236, or (850) 575-4144. Refer to the serial number (located on ...
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GTO UL325 SERIES - page 43
39 Column Installation Information I F THIS OPENER WILL BE USED WITH GA TES THA T ARE MOUNTED ON MASONR Y , BRICK, OR R OCK (etc.) COLUMNS: READ THE FOLLO WING CAREFULL Y BEFORE PR OCEEDING A. The simplest solution is to install the opener in a push-to-open configuration (requires Push-T o-Open Bracket, see Accessory Catalog). The minimum clearanc ...
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GTO UL325 SERIES - page 44
40 Solar P anel (FM121) Not Compatible with Mighty Mule® 250 The Solar Panel is a 5 watt solar po wered battery charger for use with the FM500 & FM502 gate opener systems. Particularly suited for remote installations, each Solar P anel comes with tubular steel support, mounting clips, wire connectors, and 8 ft. of low v oltage wire (see Low V ...
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GTO UL325 SERIES - page 45
41 If you have a question about any special order item, just call 1-800-543- GA TE! Low V oltage W ire (RB509) The 16 gauge, multi-stranded, dual conductor Low V oltage W ire is for connecting the AC po wered transformer , or the Solar Panel to the control board. Also used for the connection of accessories, such as locks, keypads, push b uttons and ...
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