Liftmaster MJ 5011U Commercial Garage Door Opener Medium-Duty Jackshaft Operator

Liftmaster MJ 5011U Commercial Garage Door Opener Medium-Duty Jackshaft Operator

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Liftmaster MJ 5011U Commercial Garage Door Opener Medium-Duty Jackshaft Operator Instruction Manual
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Product Description

At North Shore Commercial Door, we’re committed to providing the best garage door openers for our customers. If you have vertical lift sectional doors or small rolling doors, the LiftMaster MJ5011U commercial garage door opener is an excellent choice for a heavy-duty garage door opener. This jackshaft operator complies with local codes and makes it easier and safer to operate large commercial doors on a regular basis. A two-year warranty is included in your purchase. To find out more about this product or get garage door openers reviews, see our "Questions" app below to get direct answers from our staff and from other users.
Above this description, and below the "add to cart" button you will find a pdf file of the product manual that you can download for this Liftmaster MJ. The MJ5011 by liftmaster will not disappoint!

UL325-2010 provides safety feature for monitored entrapment capability

UL-listed and UL-labeled to comply with regulations and codes

Solid-state medium-duty logic circuit board with three-button station for open/close/stop functionality

Powerful 1/2 HP, 115V single-phase motor with instant reverse, capacitor start, and overload protection

Easy emergency manual operation using a floor level disconnect

Heavy-duty solenoid-actuated brake

Accepts up to 20 Security+ remote controls and unlimited DIP switch remote controls.

Safety sensors included with our Lift Master MJ-5011 Jackshaft commmercial garage opener

Sprocket for Torsion shaft included (specify 1" or 1-1/4" diameter torsion bar on order form)

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Comments / Questions

COMMENT: I bought one this year this year installed it on a roll up door now I need another one worked great thank you by troy S 9/10/2015
COMMENT: Fits our requirements and price was very good. by David H 7/15/2015
QUESTION: My rollup door is only 9 feet tall. What model do I need? Thanks. by Bob W 10/6/2015
STAFF ANSWER: I recommend the Liftmaster 3950. I have 1 left in stock ! Please give me a call at 800.783.6112 Ext 12 and I can ship this out today before 3:15 pm 10/6/15 by Matthew O a
QUESTION: Does MJ5011U come with chain and Sprocket for Door Shaft ? by dwain L 8/23/2015
ANSWER: Yes, chain and sprocket were included with opener. by Brian J a
ANSWER: Yes. Been using it for about a month now and working great. by Carl A a
QUESTION: The torsion bar on my 12'x12' door is 1" but does not have a keyway. Will this opener work on my door? Are there options for mounting the sprocket so it is secure? by Brian J 5/19/2015
ANSWER: The sprocket that comes with it depends on the keyway. I'm sure you could get a different sprocket with a tapered hub that could clamp tighter and work. I like my opener on my 18 x 14' door. I did have to install the "kicker" springs to help give it that initial "push" when closing so that that lift cables wouldn't unwind. No problems after installing them. by Roy M a
ANSWER: You need to purchase an electric door opener kit from steel door depot possibly Janis 1950 by Anthony S a
ANSWER: it has duel set screws that hold the sprocket on the shaft. should work fine for your application. by Danny T a
ANSWER: Yes it will work without. Just make sure you tighten up both set screws rally tight. It will actually put a indentation in your shaft. You can check by looking thru the end of your shaft. by vincent c a
ANSWER: yep it is a solid shaft yes if it is a tube no by Dale B a
ANSWER: I had the same issue. What I did was put the pulley on the bar and drilled a pilot hole into the bar where both pulley set screws go. Then I tapped and treaded both holes with the pulley installed so that the threads lined up. I installed grade 8 bolts and it worked amazing. by Matt H a
ANSWER: Very possibly overheat and stop in the middle of a cycle, however they are thermally protected, so after cooling down for a period of time, it should once again operate properly. If you will be operating more than twelve cycles per hour regularly, I would suggest going to a heavy duty operator. by Dale B a