Gate And Opener Maintenance; Warranty Repair - Mighty Mule FM402 Installation Manual

Gate and Opener Maintenance:

1. Keep gates properly maintained. Grease hinges. Make sure gates remain level. Replace worn or damaged
hardware. On gates over 250 lbs, grease ball bearing hinges at least 4 times annually (more if in a coastal area).
2. Service the gate opener regularly (make sure control box is OFF). Clean extended opener arm with a soft, dry, cloth
and apply high quality silicone spray once a month. Replace battery every 1–2 years.

Warranty Repair

If your Mighty Mule Gate Opener is not operating properly, please follow the steps below:
1. First use the procedures found in the Visual and Audible Diagnostic Indicators section (page 24).
2. Use the 24/7 Troubleshooting "Wizard" at http://support.gtoinc.com.
3. 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 back of opener arm) and date of purchase when calling for assistance.
4. If replacement of your gate opener is necessary, the Service Department will assign a Return Goods
Authorization (RGA) number to you for all warranty repairs.
5. Securely pack the component(s) authorized for return to the factory. Write the RGA number issued to you on the
outside of the package in LARGE BOLD PRINT and include a copy of the proof of purchase. Ship the package(s)
freight prepaid to: GTO, 3121 Hartsfield Road, Tallahassee, Florida, USA 32303.
NOTE: Products returned to GTO without a Return Goods Authorization (RGA) number in LARGE BOLD
PRINT on the outside of the package WILL NOT be accepted. Also, items returned to GTO freight collect
WILL NOT be accepted.
After the eighteen (18) month warranty expires, GTO, or one of its authorized service
centers will perform necessary repairs for a nominal fee. Call GTO's Technical Service
Department.
GTO Technical Service and Installation Assistance
24/7 Troubleshooting Wizard: http://support.gtoinc.com
rev 12-14-15
VOLTAGE READINGS
14 Vac Transformer _____________ 13.0 to 16.0 Vac
10 W Solar panel _______________ 18.0 to 22.0 Vdc 600 mA
Measure voltage at panel and control box.
12 V Battery ____________________ 12.5 to 13.5 Vdc
Charging circuit ________________ 13.8 to 14.8 Vdc
Measure voltage at battery terminals with battery connected.
8:00am–7:00pm • Monday–Friday (EST)
Toll Free Support: 800-543-1236 • Fax: 850/575-8950
GTO Access Systems, LLC
3121 Hartsfield Road, Tallahassee, Florida, USA 32303
www.mightymule.com
Mighty Mule FM402 Installation Instructions
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