Installation manual
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GTO, Inc.
Mighty Mule Accessory Limited One Year Warranty:
GTO, Inc., gate openers and accessories are warranted by the manufacturer against defects in materials and
manufacturer workmanship for a period of one (1) year from date of purchase, provided the recommended
installation procedures have been followed.
In the case of product failure due to defective material or manufacturer workmanship within the one (1) year
warranty period, the product will be repaired or replaced (at the manufacturer’s option) at no charge to the
customer, if returned to GTO, Inc., 3121 Hartsfield Road, Tallahassee, Florida, USA 32303. IMPORTANT:
Call (850) 575-4144 or Fax (850) 575-8950 for a Return Goods Authorization (RGA) number before
returning accessory to factory. Products received at the factory without an RGA number will not be
accepted. Replacement or repaired parts are covered by this warranty for the remainder of the one (1) year
warranty period or six (6) months, whichever is greater. GTO, Inc. will pay the shipping charges (equal to
United Parcel Service GROUND rate) for return to the owner of items repaired under warranty.
The manufacturer will not be responsible for any charges or damages incurred in the removal of the defective
parts for repair, or for the reinstallation of those parts after repair. This warranty shall be considered void if
damage to the product(s) was due to improper installation or use, connection to an improper power source, or if
damage was caused by lightning, wind, fire, flood, insects or other natural agent.
After the one (1) year warranty period, GTO, Inc. or one of its authorized service centers will make any
necessary repairs for a nominal fee. Call GTO at (800) 543-1236 for more information. This warranty gives
you specific legal rights, and you may also have other rights which may vary from state to state. This warranty
is in lieu of all other warranties, expressed or implied. NOTE: Verification of the warranty period requires
copies of receipts or other proof of purchase. Please retain these records.
3121 Hartsfield Road • Tallahassee, Florida, USA 32303 • (850) 575-0176 • Fax (850) 575-8912 • Web site www.mightymule.com
The Following Accessories Are Available Through Your
Retail Store's Special Order Desk.
If you have a question about any special order item,
just call 1-800-543-GATE!
Dual Transmitter (RB742)
The Dual Transmitter is a two button transmitter for remote control of two separate gate
openers, or a gate opener and garage door opener (see Garage Door Receiver). Battery
included.
Triple Transmitter (RB743)
The Triple Transmitter is a three button transmitter for remote control of three separate gate
openers and/or garage door openers (see Garage Door Receiver). Battery included.
Replacement Transformer (RB566)
Standard 18 volt AC transformer for maintaining the battery included with the Mighty Mule gate opener.
This is the only transformer approved for use with the Mighty Mule.
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 gate opener and your garage door opener.
Compatible with most garage door openers.
HEDDOLF
UNIVERSAL
RECEIVER
MODEL 294