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MM272 Installation Instructions
Maintenance
Monthly, test the obstruction and entrapment protection systems.
Monthly, service the gate operator (make sure the power switch is OFF). Clean extended operator arm with a soft, dry clean cloth.
After cleaning, apply a high quality silicon spray to a soft dry cloth and wipe the push/pull tube. DO NOT directly spray the tube!
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.
Monthly, turn off the power switch and disconnect the Mighty Mule and move the gate to make sure the gate is moving freely
without sticking or binding. Lubricate the hinges or repair the gate as required before reattaching the Mighty Mule.
Monthly, check the gate system for potentially entrapments from new landscaping or construction. Eliminate or guard as required.
Monthly, check that the warning signs are mounted on each side of the gate and clearly visible. Replace the signs if they are miss-
ing or damaged.
Replace batteries every 2-3 years and properly recycle old batteries.
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 (
).
2. Use the 24/7 Troubleshooting "Wizard" located at
3. If you are unable to solve the problem, call the NSC 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
the address supplied during the RGA process:
NOTE: Products returned to NSC 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 NSC freight collect WILL
NOT be accepted.
After the 12 month warranty expires, NSC, or one of its authorized service centers will perform necessary repairs for a nominal
fee. Call NSC's Technical Service Department.
Mighty Mule Technical Service and Installation Assistance
8:00am–7:00pm • Monday–Friday (EST)
Toll Free Support: 800-543-1236 • Fax: 850-575-8912
24/7 Troubleshooting Wizard link found at:
