Mighty Mule Gate Opener Repair - Inexpensive Motor Option.

Mighty Mule gate opener repair time. Let's take it apart and replace the motor ourselves, using inexpensive & easy to find RS550 motors. These motors can be found for under $10 USD!
No, you don't have to spend $50 or more for a Mighty Mule or GTO motor. In fact, the motors I used in this video are even better than the original ones - they are ball raced, not bushed.

Replacement D1RC 550 29T motor @ Banggood:

Mighty Mule/GTO replacement motor with pinion gear @ Amazon:

GTO Dual Gate Opener Package:

Mighty Mule Single Gate Opener Package:

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[HamiMiami]

Excellent video! You covered everything i needed to know to repair my own arms! Especially the model of the diode as mine had been cooked by a lightning strike.

[justanotheryoutube]

I know that making a video like this is a lot of work. And I know you are not making much, if any, monitary return. So I just want to make sure you know how much it is appreciated. I am a heavy DIYer and in the past I had to figure things out like this with virgin eyes. Having your knowledge from this video in my head before starting feels like cheating. It helps so much it turns a dreaded job into a fun project. Thank you, and well done.

[DanMarkAntworks]

I gotta say....this is one of the best fixit videos I've ever seen on here. He doesn't waste your time and is very detailed. I actually learned some things watching this!

[FatherCoughlin]

Competence is such a rare commodity today in any endeavor. Thank you very much for a clear and concise video.

[HectorRodriguez-ishk]

Lots of valuable information.I am was troubled shooting not knowing what I was doing getting ready to by a new set up for 1k but decided to order 30 bucks worth of parts and try fixing it first . Thanks again for sharing your knowledge!

[kurtlarsen]

The best DIY video I have seen yet. Thank you so much! Great camera work, editing, sound, and attention to detail without wasting our time.
I called Mighty Mule and they told me they do not sell the motors and I would have to get a whole new unit. Without your detailed video I never would have attempted buying a motor from elsewhere and installing it myself.
My Hero!

[LReite]

Thank you so much for your time, mighty mule really sucks now. Have a 2 year old system arm stopped working. Sat on hold by my gate for ever only to have them say, sorry you have to buy a complete new system now. Was going to throw the whole thing in the trash. Then i found this video. back up and running Thank you sir and God Bless

[ChrisWilliams-pupj]

Thank you so much. Having an issue with my single arm actuator but afraid I have stripped gears in my gear box. Great information. Thank you for the great video!

[normnelson]

Thanks for the great video – concise, clear, and great attention to detail – down to the chemicals used. Thank you!
I've got an older model of Mighty Mule opener, and it's too slow for my liking. I've got it attached to a very light gate, and I've often thought of replacing the motor with a motor that has higher RPM's. I never took any measurements, but when I had it apart, I thought he motor was a 750 size, not 550... but you're inspiring me to double-check and order a faster motor the next time I have it apart. Thanks!

[jonathandoey]

Excellent tutorial i watched the entire thing and don't need to do this job yet!

[billwells]

John, thanks for showing us the inside of the opener! I will be oiling that screw sometime!

[roberthornbeck]

Wow. Great video. Thank you. I changed my motor using your video. I took two short cuts; 1) I bought a motor with gear and capacity. Had to solder cap, and old wires but was easy, 2) I didn't take the linear / shaft apart at the Counter/wheel end, I was able to take the gear box apart on the shaft, exchange motors and reassemble.I had to wait 5 days to get motor. It cost me $65.00 with shipping and tax, and came with gear on it.Considering what someone would have charged me I am OK with a $65 dollar cost and my FREE labor :)I ordered motor through amazon, and got a perfect replacement. The one on ebay has a different motor gear?? and...….costs more.Thank you for video .semper fi

[teamgrills]

Thank you brother, you just save me 700 dolars, repalce the motor in my second arm, amazing tutorial, paid 30 dolars for mine

[JustAnotherOldMan]

John I watched your motor replacement and wanted to thank you for taking the time to save my rear hahaha,
Beautiful work Sir !

[bryanlalonde]

I was so happy to try this, but was terribly disappointed. MM cross threaded one of the bolts for the bearing housing, which then broke. And then the bearing appears to be pressed on. I'm glad this fix worked for so many people. Keep up the good work, because this is a very good how-to.

[thomasgorman]

The absolute best video I've reviewed regarding cleaning and lubricating the drive qear arm
assembly .

[bbartos]

What a well-done, thorough, clear video! It's chock full of useful information. Thank you!

[davecarmichael]

I’m going to attempt this, mighty mule help wanted me to buy a new circuit board but I found 2 holes in their trouble shooting theory, and have now ventured out on my own to fix my FM 502 arm. Thank you.

[rustishakelfurd]

Good video I am in the process of doing mine right now I have a 35t motor on hand out of rc crawler probably be a bit slower just was unsure on a couple things and you cleared them all up I appreciate it

[paulolle]

very informative didn't know that there was that much to do.. i have 4 351 s now that im wanting to repair and i have the motor one thing you kept on saying that they would be good for 10 years I wish two years for me for some reason i believe that i just hope that they are all motor problems thanks again