Installation Manual for the ® E-Z GATE OPENER ® E-Z GATE OPENER 502 UL325 SERIES LI 502 STED US UL325 SERIES 1-800-543-GATE (4283) • www.mightymule.com ! 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. ® E-Z GATE OPENER 502 UL325 SERIES 1-800-543-GATE (4283) • www.mightymule.
The Mighty Mule® Gate Opener is intended for use with vehicular swing gates. The opener can be used in Class I, Class II, Class III and Class IV 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.
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 ---------------------------------------------
® E-Z GATE ®OPENERS PLEASE READ THIS FIRST! Thank you for purchasing a Mighty Mule® 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.
IMPORTANT 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 automated 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.
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.
IMPORTANT SAFETY INSTRUCTIONS Entrapment Zones for a proper Pull-To-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 – 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. II. During Installation 1. Install the gate opener on the inside of the property and fence line.
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.
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 an inherent entrapment sensing system, and shall have provisions for, or be supplied with, at least one independent secondary means to protect against entrapment. The Mighty Mule® utilizes Type A, an inherent (i.e., built-in) entrapment sensing system as the primary type of entrapment protection.
IMPORTANT SAFETY INSTRUCTIONS Required Safety Precautions for Gates Install Warning Signs Warning 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 near the vehicular gate. We recommend using the GTO Bulldog Pedestrian Gate Lock (Call the GTO Sales Department) for controlled access.
IMPORTANT SAFETY INSTRUCTIONS ! These warning labels should be found at the locations specified below. If any of them are missing, immediately contact GTO for replacements. DC SWING SERIES / 500 C LIS TED #xxxxxxx US Conforms to UL 325 STANDARDS Maximum Gate: 500 lb. (226.7 kg); 16 ft. (4.8 m) Voltage: 12 Vdc; Frequency: 0 Hz; Power: 25 W Class I, II, III and IV Vehicular Swing Gate Operator. Serial Number: XXXXXXXXXX TO MANUALLY OPEN AND CLOSE THE GATE: 1. Turn control box power switch OFF. 2.
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Dual Gate Opener Parts List (continued) Control Box and Electrical Components Battery (1) Receiver (1) GTO Transmitter(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.
Technical Specifications MIGHTY MULE® 502 E-Z GATE® OPENER DRIVE • Low friction screw drive (linear actuator) rated for -5 ºF to +160 ºF (-28 ºC to +71 ºC). • Powered by a 12 V motor with integral case hardened steel gear reducer. Motor speed reduced to 260 rpm. Generates 680 ft. lb. of torque at 12 V. • Maximum opening arc of 110º. Approximate opening time (90º): 20 seconds, depending on weight of gate. POWER • The system is powered by a 12 Vdc, 7.0 Ah, sealed, rechargeable acid battery.
Installation Overview Pull-to-Open Gates (Gate Opens into the Property) The diagram shown below is an example of a pull-to-open installation on a chain link fence and dual gates. Mounting the openers on a masonry column requires special procedures; see Column Installation Information on page 38 if you intend to mount the openers on columns. Furthermore, if you have push-to-open gates, you will need to purchase two (2) pushto-open brackets (see Accessory Catalog) to properly configure your system.
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 (minimum 2 inches). 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.
Determining the Mounting Position of the Post Bracket Assembly and the Gate Bracket Post Bracket Assembly Step 3 IInsert the 3/8" x 2" bolt through the center hole of the post brackets and post pivot bracket as shown. Fasten a 3/8" lock washer, 3/8" washer and 3/8" nut on the end of the bolt. DO NOT overtighten the nut because the post pivot bracket will have to be adjusted later. NOTE: The following steps are intended for pull-to-open gate installations.
IMPORTANT: While determining the mounting point for the post pivot bracket assembly, be sure that the position allows for minimum 2 inches of clearance between the gate and the opener in both the open and closed positions, as shown in the diagrams below. This clearance will give the opener the most efficient leverage point for opening and closing the gate and more importantly provides the least possible pinch area.
Installing the Post Bracket Assembly and Gate 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.
Mounting the First Opener Step 11 Attach the opener to the securely bolted post bracket assembly and gate bracket using clevis pins, bushings, and hairpin clips, or optional Pin Locks (see Accessory Catalog). Verify that the opener is level and adjust the post bracket assembly if necessary.
Installation of the Closed Position Stops The Mighty Mule® Gate Openers firmly hold the gates in the closed position using positive stops. The positive stops help stabilize the gate leaves in the closed position. To further enhance stability and security, we strongly recommended using an optional Mighty Mule® Automatic Gate Lock (see Accessory Catalog) with your dual gate. IMPORTANT: You need to determine which side of the driveway you will mount the control box.
Step 2 Closed Position Stop Plate mounted on the gate leaf that CLOSES FIRST Install a low profile ground stop (not provided) beneath the SLAVE gate stop plate. Mount Vertically The ground stop needs to be positioned near the end of the gate as shown in Illustration A and may be made of metal or concrete and should be firmly secured in the ground (we recommend setting it in concrete).
Mounting the Control Box Step 1 Mount the control box using the screws ((provided) or another secure mounting method. The control box must be mounted at least 3 feet above the ground to protect it from rain splash, snow, etc., and at least 3 feet from an AC power source to prevent electrical interference. Use mounting holes and screws provided to mount control box to a secure surface.
Connecting Opener Power Cables MASTER Operator SWITCH GRN WHT BLUE Step 4 BRN ORG MASTER INPUTS Insert the stripped power cable wires into the appropriate terminals on the MASTER operator terminal block. The green wire should be inserted into the GRN terminal, the blue wire into BLU, the orange wire into ORG, black wire into BLK, and the red wire into the RED terminal. RED BLK Power Cable from the Master Operatorr Arm COM COM Tighten the set screws against the end of the wires.
Powering the System Installation of the Transformer IMPORTANT: • The transformer is designed and intended for indoor use. If the transformer can be plugged only into an outside electrical outlet, a weatherproof cover or housing (available at local electrical supply stores) must be used. • All low voltage wire used with the Mighty Mule® Gate Opener must be 16 gauge dual conductor, multi-stranded, direct burial wire (see page 22 and the Accessory Catalog). Do not run more than 1000 feet of wire.
IMPORTANT INFORMATION ABOUT LOW VOLTAGE 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 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.
Step 6 Strip 1/2" of insulation from the ends of the low voltage wire. Attach these stripped ends to the transformer terminals. A dab of household petroleum jelly on each terminal will help prevent corrosion. Transformer Step 7 Plug the transformer into the electrical outlet. (Use of a surge protector with the transformer is strongly recommended.) HINT: Keep a few mothballs in the control box to discourage insects from entering it and damaging the control board.
CONTROL BOARD SETTINGS DIP Switches NOTE: Leave DIP Switch #3 in the OFF position untill installation is complete, to prevent gate from automatically closing during installation. Main DIP Switch Settings (MODES) 1 2 3 4 5 6 7 ON ON DIP Switch #1 - Soft Start/Stop The Soft Start/Stop feature slowly starts the gate as it begins to open and slows the gate as it comes to the closed position. This saves wear and tear on the gate and gate opener system.
Dual Gate DIP Switch Settings (DUAL MODES) DIP Switches #1 and #2 (Factory Set OFF/OFF) The combination of DIP Switches #1 and #2 will determine the sequence dual gates will open and close.
Setting the Closed Position Limits TURN CONTROL BOX ON Your Mighty Mule® 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: (Gate in the CLOSED POSITION) To achieve optimum closed position, you are required to complete the following SEVEN STEPS: Step 1 Confirm that the power switch is in the ON position, and the gates are in the OPEN POSITIONS.
Step 7 Press the transmitter button and allow the gates to return to the fully open position. BOTH YOUR MASTER AND SLAVE GATE’S CLOSED POSITION LIMITS ARE NOW PROGRAMMED. TESTING YOUR CLOSED LIMIT SETTING: Press your entry transmitter and allow your gates to close. If CLOSED positions are not correct or need to be changed, you will need to CLEAR your CLOSED LIMIT settings and follow Steps 1-7 again.
Obstruction Sensitivity Potentiometer IMPORTANT: For safety reasons the obstruction setting or Stall Force on the Mighty Mule® control board comes from the factory set at MIN (minimum). In many gate installations this setting will need to be adjusted to overcome the weight and size of the gates. TThe Stall Force potentiometer on the control board operates like a volume control on a radio.
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 any applicable UL standards (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® 502 will ONLY accept accessory devices with normally open dry contact output.
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® 502. The Mighty Mule® 502 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.
Connecting Accessories If not connecting accessories skip to next section. The Mighty Mule® 502 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. 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.
Push to Open Installation Swinging gates shall not open into public access areas! A "Push-to-Open" gate opens out from the property. A Push-to-Open Bracket is required for this type of installation (see Accessory Catalog). If you have a pull-to-open gate (gate opens into the property), return to page 13; step 3. In a PUSH-TO-OPEN installation the openers are installed while the gates are in the closed position.
Step 3 With 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 level. (Some vertical adjustment is possible by sliding the post bracket assembly up and down.) Drill 3/8" holes into the gate cross member as marked. Fasten gate bracket to cross member using (2) 3/8" x 3" bolts, washers, lock washers, and nuts.
Step 3 With the first gate in the desired open position. Program the open limit setting by setting the number 4 DIP switch on the DUAL MODES switches to the OFF position (if the MASTER gate opened first) or the ON position (if the SLAVE gate opened first) then PRESS & HOLD the “SET LIMIT" button on the control board for 5 seconds. Step 4 Press the transmitter button and allow the gates to return to the closed position. YOUR FIRST GATE’S OPEN POSITION LIMIT IS NOW PROGRAMMED.
Maintenance & Troubleshooting Guide If your gate opener does not function properly after it is installed, use this guide before calling the GTO Service Department. • On all gates weighing 250 lb. or more, routinely grease the ball bearing hinges at least 4 times a year; more frequently if the gates are near a coastal area. • Keeping a few mothballs in the control box will discourage insects from entering it and damaging the control board.
If the Opener is Working The 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 or hinge damage. 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. VOLTAGE RATINGS 18 Vac Transformer ___________________________ 18.0 to 22.0 Vac 5 W Solar panel (single) _______________________18.0 to 22.
Repair Service If your Mighty Mule® Gate Opener is not operating properly, please follow the steps below: 1. First use the procedures found in the Maintenance & Troubleshooting Guide (see page 35). 2. If you are unable to solve the problem, call the GTO Service Department at (800) 543-1236, or (850) 575-4144. Refer to the serial number (located on the control box cover) and date of purchase when calling for assistance. 3.
Column Installation Information IF THIS OPENER WILL BE USED WITH GATES THAT ARE MOUNTED ON MASONRY, BRICK, OR ROCK (etc.) COLUMNS: READ THE FOLLOWING CAREFULLY BEFORE PROCEEDING A. The simplest solution is to install the opener in a push-to-open configuration (requires Push-To-Open Bracket, see Accessory Catalog). The minimum clearance is easier to achieve and clearance is no longer a problem, since the opener will be pushing the gate away from the column instead of pulling it toward the column.
® E-Z GATE OPENERS ® ACCESSORIES Accessories are Available From Your Retail Store SSolar Panel (FM121) Not Compatible with Mighty Mule® 250 The Solar Panel is a 5 watt solar powered battery charger for use with the FM500 & FM502 gate opener systems. Particularly suited for remote installations, each Solar Panel comes with tubular steel support, mounting clips, wire connectors, and 8 ft. of low voltage wire (see Low Voltage Wire for additional wire).
Accessories are Available From Your Retail Store (con't) Replacement Battery (FM150) Not Compatible with Mighty Mule® 250 Standard 12 volt, 7.0 amp-hour, maintenance-free battery for the Mighty Mule® FM500 & FM502 gate opener systems. This is the only battery approved for use with the Mighty Mule® FM500 & FM502 gate opener systems. Life expectancy is 3-5 years.
