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vi

  

MM271 Installation Instructions

MM271 Installation Instructions

  

vii

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 becomes damaged,  

illegible, or missing, replace them immediately.  

Contact Nortek Security and Control for free 

replacements.

2.  The gate is automatic and could move at any time, 

posing serious risk of entrapment. No one should be 

in contact with the gate when it is  

moving or stationary.

3.  Do not attempt to drive into the gate area while 

the gate is moving; wait until the gate comes to a 

complete stop. 

4.   Do not attempt to “beat the gate” while the gate is 

closing. This is extremely dangerous.

5.  Do not allow children or pets near your gate. 

Never 

let children operate or play with gate controls.

 

Keep the remote control away from children and 

unauthorized users; store controls where children 

and unauthorized users do not have access to them.

6. 

KEEP GATE SYSTEMS MAINTAINED.

   

Always turn power to operator OFF before  

performing any maintenance. See page 14 for 

maintenance procedures.

7.  To operate this equipment safely, YOU must 

know how to disconnect the operator for manual 

gate operation (see page iii). If you have read the 

instructions and still do not understand how to 

disconnect the operator, contact the Mighty Mule 

Service Department.

8.  Disconnect the operator 

ONLY

 when the power is 

TURNED OFF and the gate is NOT moving.

9.  Make arrangements with local fire and law  

enforcement for emergency access.

10.  Distribute and discuss copies of the  

IMPORTANT SAFETY INFORMATION

  

section of this manual with all persons  

authorized to use your gate.

11. 

IMPORTANT: Save these safety instructions. 

Make sure everyone who is using or will be 

around the gate and gate operator are aware 

of the dangers associated with automated gate 

systems. In the event you sell the property 

with the gate operator or sell the gate operator, 

provide a copy of these safety instructions to the 

new owner.  

 

Should you need a replacement manual, a copy 

can be obtained by downloading one from the 

Mighty Mule web site (www.mightymule.com), 

by contacting Nortek Security and Control, at 

3121 Hartsfield Road, Tallahassee, Florida 32303 

or by calling 1-800-543-4283 and requesting a 

duplicate copy. 

FOR THE INSTALLER AND END USER

FOR THE INSTALLER AND END USER

Mighty Mule gate operators utilize Dual Sense 

Technology

 entrapment protection. Dual Sense 

Technology

 is built into every Mighty Mule and 

provides redundant methods of entrapment protection 

for open and close gate directions.
In addition to Dual Sense Technology, every Mighty 

Mule gate controller has provisions for the connection 

of additional obstruction detection devices such as 

sensing edges and photo beams.
These devices may be located where there is an 

increased risk of obstruction. Refer to the diagram 

below.  
 

One or more edge sensors may be located at the 

leading edge, bottom edge, and post edge, both inside 

and outside of a vehicular swing gate system.
Wiring to sensors must be located and arranged so the 

wiring between the sensor and the gate operator is not 

subjected to mechanical damage.
A wireless sensor such as one that transmits radio 

frequency (RF) signals that promote safety shall be 

located where the transmission of the signals is not 

obstructed or impeded by building structures, natural 

landscaping or similar objects.

Leading Edge

of the gate

Photo Beams

(recommended, not included)

Photo Beams

(recommended, not included)

Sensing Edges

(recommended, not included)

Vehicular Gate

Entrapment and Obstruction Protection 

Mighty Mules’s Dual Sense Technology

 provides entrapment protection, when properly adjusted. Since all installations 

are different, you may need to add photo beams or sensing edges to help prevent damage to vehicle or other items that 

could be hit by a moving gate.

Entrapment Alarm

The Mighty Mule Automatic Gate Operator is designed to stop and reverse the gate when the gate comes in contact with 

an obstruction. Additionally, these operators 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 operator receives an 

intended signal from a hard wired entry/exit source (e.g. push button control or keypad). Turning the power switch on the 

control box OFF and back ON will also deactivate the alarm. Wireless controls such as transmitters and wireless keypads 

will not deactivate the alarm.

Important Safety Information

Important Safety Information

NOTE:

 Photo beams should always be located on the non-travel side of the gate.

Summary of Contents for Mighty Mule MM271

Page 1: ...box from transformer wire not included Power Cable Closed Position Stop Plate PVC conduit not included to protect wire from lawn mowers and weed eaters Gate Bracket Warning Sign Single Gate Operator 1...

Page 2: ...if you fail to do so Nortek Security and Control LLC shall in no event be liable for direct indirect incidental special or consequential damages or loss of profits whether based in contract tort or a...

Page 3: ...lad to give you the name and phone number of a Linear dealer near you BEFORE YOU BEGIN TO INSTALL YOUR AUTOMATIC GATE OPERATOR Read these instructions carefully to become familiar with all parts and i...

Page 4: ...t from any moving part of the gate see diagram below Never install any control device where a user will be tempted to reach through the gate to activate the gate operator 5 Do not activate your gate o...

Page 5: ...at 3121 Hartsfield Road Tallahassee Florida 32303 or by calling 1 800 543 4283 and requesting a duplicate copy FOR THE INSTALLER AND END USER FOR THE INSTALLER AND END USER Mighty Mule gate operators...

Page 6: ...ded not included 7 foot minimum Important Safety Information Important Safety Information Warning signs alert people of automatic gate operation and are required when installing Mighty Mule Automatic...

Page 7: ...TE ACTIVITY CHART Single Gate Winter Ratings Zone 1 Zone 2 Zone 3 12 v single gate 10 watts solar charger 8 16 26 12 v single gate 20 watts solar charger 14 28 38 12 v single gate 30 watts solar charg...

Page 8: ...rator near the center line of the gate to keep the gate from twisting and flexing and to avoid back splash from rain Copper clad ground rod not included Ground Ground 2 Inches or Less above ground Cop...

Page 9: ...me types of installations require u bolts Additional washers or a metal plate may be needed for wooden post Weatherproof cover for outdoor outlet and transformer If the post is larger than 6 bolts lon...

Page 10: ...post and gate cross support Attach post bracket assembly to gate post NOTE Must be through bolted GATE OPERATOR INSTALLATION 1 2 3 5 6 12 T L L V P 2 1 1 13 2 14 15 4 H 1 5 1 2 2 1 Attach and secure o...

Page 11: ...CHGR OFF 120 AUTO CLOSE TIM E MIN MAX STA LL FORCE 6 Locate power outlet and identify wire path to control box NOTE If OUTLET is OUTSIDE use weatherproof cover Inspect the wire to insure the preventi...

Page 12: ...HGR terminal Solar Panels connect in PARALLEL Position solar panel facing sun and in a non shaded open area that allows 8 hours of direct sunlight for a full charge SOLAR PANEL INSTALLATION For multip...

Page 13: ...an radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interferen...

Page 14: ...tructing from its own weight or the wind conditions in your area You may need to increase the stall force in cold weather due to increased resistance from gate hinges However the adjustment must remai...

Page 15: ...ntact edge sensor Activation of this input while gate is moving will cause it to reverse direction for 2 seconds Activation of this input while idle will prevent gate from running 8 COM Common Negativ...

Page 16: ...Gate h h Gate for Level and Plumb h h Stall Force Adjustment h h Disconnect Obstruction Detection Devices h h Battery connections h h Check fuse 1 beep every 20 seconds off Low Battery Condition h h T...

Page 17: ...Time Fax 850 575 8950 Web site www mightymule com Telephone 800 543 1236 For 24 hour 7 days a week trouble shooting and sup port online go to our TECH WIZARD site at www mightymule com Repair Service...

Page 18: ...s for maximum stability and security Comes with a keyed manual release Accessories Replacement Transformer RB571 Standard 18 volt 2260 mA AC transformer for maintaining the battery with the Mighty Mul...

Page 19: ...ffic must use the pedestrian gate 5 Warning signs have been installed on each side of the gate in highly visible locations These signs must remain at all times 6 There are no controls installed on the...

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