LiftMaster Gear Sprocket Replacement Under 5 Minutes

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*IMPORTANT WARNING*
Before repairing your garage door opener motor you must unplug your motor. Failure to unplug your motor might cause harm or electrical shock. For the most part gear sprocket kit replacements are simple repairs. Following these simple pro tips might help you get this job done safely and quickly.
#liftmaster #gearsprocketrepair #liftmastergaragedoormotor
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AFFILIATE LINKS BELOW MIGHT PAY US A COMMISSION:
Liftmaster Gear Kit 41C4220A Gear & Sprocket Assembly Direct Replacement
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Liftmaster/Chamberlain- Sears/Craftsman 41a4885-2 Genuine Replacement Part Gear and Sprocket Kit, DC Belt
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LIFTMASTER Garage Door Openers 41A4885-5 Belt Drive Gear & Sprocket
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LiftMaster Gear and Sprocket Assembly 41A5658 - G2595
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Опубликовано:

12 июл 2021

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Комментарии : 99

@edy8631 2 года назад

Thanks for the video. The tip about aligning the motor with the door with the sensors was helpful. In case others are curious. 1) push garage door opener switch and then activate the safety switch (~6 inches above the floor near the rail - break the laser with your foot). 2) the motor will switch directions and then the light will flash a few times (this will indicate it is in the up position) 3) Hit the door opener switch one more time and then the motor will stop in the 'down' position. 4) manually move the chain so the trolley matches up with the carriage when the garage is in the down position. 5) Lastly you can also visually confirm if the contact sensor tabs are resting on the down or up side of the door adjustment screws.

@sosgds 2 года назад

Spot on protip.

@karthiksc47 Год назад

Thank you and God Bless, its people like you that keep the world going, thanks for the tip

@nikoniko893 6 месяцев назад

Thanks for these detailed instructions, makes it much easier to follow for some of us. So this is done before or after the sprocket is put back in?

@edy8631 6 месяцев назад

I believe I did those steps before I put the sprocket on. The moving of the chain is to get things lined up as best you can. After the sprocket is replaced you’ll have a more accurate starting placement as you feed the chain onto the sprocket.

@nikoniko893 6 месяцев назад

@@edy8631 i ended up using the steps above after the new sprocket was installed. Seems to work well but I can't adjust the door so it doesn't hit the bolt when in the open position.

@uucfgreen3 Год назад

Excellent video, very clear, very helpful. I have a tip for putting the chain back on the sprocket. Put some spring clamps in the middle of the T-bar and temporarily drape the chain over those. That prevents the big sag in the chain and makes it much easier to pull the chain over the sprocket. My chain was so tight -- even at the loosest setting on the tensioner -- that I could not pull the chain over the sprocket until I did that.

@fortress1133 Год назад

I knew the gear and/or sprocket on my opener were stripped, but I debated on whether or not to DIY. Looks simple enough and I don't have to take the opener down even. Instead of spending $200 I'll spend $20 on the replacement kit! Thank you for the tip!

@nikko9_wrx 7 месяцев назад

Thanks for this video! I was a bit nervous opening up the garage door opener to work on it, but your video made the process a breeze and my door is fully operational again!

@DavidAnderson-ph2dg Год назад

Ohhhh..... THAT'S why you wanted the ratcheting wrench.... I get it now. Seriously, thanks for the video. Saved me like $180

@sosgds Год назад

I'm glad the video was helpful.

@DustinTJ1 Год назад

It took me longer than 5 minutes but I got the job done! Thanks for the video

@alamedacustomholsters Год назад

Thank you so much, saved me some big money, part was $20, only thing I suggest is use spring clamps to hold up the chain. Great video 👊

@zinoklahoma343 6 месяцев назад

Thanks for the video. I'm about to perform the fix. Heres some feedback if you'reopen to it: ditch the music. Users turn up the volume to understand your instructions then the music comes back blasting.

@sosgds 6 месяцев назад

Thanks for the feedback.

@zinoklahoma343 6 месяцев назад

@@sosgds hey, I got the job done. Thank you!

@canineculture7897 Год назад

Hey man, thank you a lot , had to fix my dads garage he never taught me this stuff cause he never was taught this stuff so thank you.

@mxb207enziebrown Год назад

Thank you! Mine is now replaced and working better than before

@fathatman06 Год назад

Thanks for this video! It was exactly what I needed

@mattthompson9480 Год назад

Thank you very much I just got my new replacement gear housing.

@tdogjenkins5349 Год назад

Thanks for this, saves me 180 dollars. part was only 13 bux and i learned something. You sir are the hero of the day!

@shrillcrayfish6168 Год назад

Thank you for your help im not good at things like this so it helps to see it done

@jonathanperloff4297 Год назад

Excellent video!! Very clear and accurate!

@tonywahab3523 9 месяцев назад

Great video! Thanks for sharing this tutorial!

@montanadad2223 8 месяцев назад

Just the info I needed, thanks!

@TBHD724 3 года назад

Great video! I rebuilt my sears best, i got a new sprocket, bearings and everything it took longer then 5 minutes lol but it went pretty well

@aaronsmith8346 2 месяца назад

Thank you very much for the video. This is the exact same model I have so it was an easy switch. Garage door working great.

@ASG985 6 месяцев назад

Great video! Easy directions to follow for someone who’s never done this. Keep making awesome content!

@sosgds 6 месяцев назад

More to come!

@findingmywingsjesse 2 года назад

Great video :) Best on RU-vid, clear and fast like it should be!

@sosgds 2 года назад

Thank you! Stay safe party person!

@haigopi 2 месяца назад

Thank you for the video.

@garagedoorgenius 3 года назад

Nice job bro! Sorry, I've been kinda absent lately. Just got back from Pensacola Florida. Took a two week hiatus just to get my mind and body back to where it needs to be. Although two weeks is a minimum for that I feel so much better. Ready to get back into the garage door groove and hit it 100%.

@sosgds 3 года назад

Richard! So glad to hear to from you. I was wondering where'd you gone. Glad you are back and rested. Hope you had fun in FL. Did you get to take any cool videos of doors out over there?

@Americansikkunt 8 месяцев назад

Thank you! This is extremely helpful

@sosgds 7 месяцев назад

My pleasure!

@lpd1snipe Год назад

Thank you.

@maxrockatansky1271 2 месяца назад

thanks for the help bud

@johnplato4976 Год назад

As a plus for the customer, check the door for proper door balance with tensioning the spring or springs. Let them know the door is properly balanced for opener longevity & you've got a happy customer for life.

@M1_moto 3 месяца назад

Great explanation

@sosgds 3 месяца назад

Thank you for the feedback!

@ChrisTheAppleOne Год назад

I just did this, and well, I didn’t do that first step. The garage door was closed, and when we plugged it in, it tried to close the already closed garage door. It stopped right away, and we were able to get the chain with soooo much tension off, somehow didn’t destroy the new sprocket… anyways it’s working now! Now we’ve likely gotta get someone out here to install a new spring.

@josearrambide2742 2 года назад

Thank you for this. Had this exact same thing happen. Had a repair person come over, he said need new motor, door needs new rollers and balancing $700 or he could replace the whole door and opener for $3k. Just ordered the sprocket replacement from amazon for $20. Hope that does the trick!

@sosgds 2 года назад

Wow. That's high for balancing and new rollers. Of course the price for a new door is on par with the national average.

@josearrambide2742 2 года назад

@@sosgds All it needed was the sprocket. $20 from amazon, garage door is working fine now. Out $75 for the home warranty service fee but better than $700 or 3k

@blazerdude89 8 месяцев назад

@@josearrambide2742 except your door is still unbalanced.

@strongspear1918 Год назад

This 5 minute procedure only works if you have enough clearance above the opener to do the sprocket replacement (as you have in this video). Most people don't have enough clearance and have to unbolt and lower the opener.

@kelly3035 4 часа назад

Hi! How do i check if my door is in the up or down position?

@stevewhite7649 Месяц назад

If your sprocket is sheared check chain tension to make sure not to tight, also see if door is balanced by torsion springs!

@charlesduffy4363 Год назад

I would say 45 minutes is more realistic unless your a professional like yourself. Good tip about the door being in the down position, very important or else you'll destroy the new gear.

@jbean9021 4 месяца назад

I smashed the like button. You owe me a phone.

@sosgds 4 месяца назад

😅

@stevepfenninger7657 Месяц назад

I finally had the opportunity on this rainy day change out the gear sprocket. Everything seemed to have gone smoothly but when I hit the open button the trolley only moves about an inch and stops. Tap it again and it goes back to where it was. (It’s not enough movement to even move the door. Also, I don’t have any sensors. It’s an old-school installation.) Is it the chain tension or maybe the sprocket’s not lined up correctly? It looks like it is correct.

@sosgds Месяц назад

Hello! Thank you so much for this question. I believe it can help the community. Now when you replaced the gear sprocket, did you replace any other parts to it? For example like the worm gear? There's a possibility that the warm gear maybe the issue. There's also a possibility that the RPM sensor has failed or gone bad.

@stevepfenninger7657 Месяц назад

@@sosgdsI did not replace the worm gear when I replaced the sprocket assembly. When I remove the chain from the sprocket, the gears work smoothly together and it spins continuously. When I reattach the chain, there is some slack that I can’t seem to tighten up by hand. When I press the operation button, the motor will pull the chain “up” and the slack is removed. When it travels back down, it does a hard stop at about 2 inches, right at the trolley. Door appears to be in balance, because when I manually lift it up and pull back down it stop in partially down positions.

@vernonludwig1196 6 месяцев назад

Should replace the worm gear in the bushing

@sosgds 6 месяцев назад

Great suggestion. I normally do. But for this video we just focused on the gear sprocket kit.

@dannourie2754 5 месяцев назад

Your videos are AWESOME! I made one mistake and hoped you could help. Before realizing what the problem was with my door., I DID NOT MARK THE CHAIN OR THE TROLLEY LOCATIONS…. Now the the new gear is installed etc. when I press the opener, it moves the chain a few inches then stops. Both directions. I think I am making a rookie mistake. Can you help? Thank you!

@sosgds 5 месяцев назад

Hello! Thank you for the excellent questions. So it sounds like your travel limits are off. Here's what I suggest: 1. Loosen the chain and take off the sprocket. 2. Press the wall button to get the garage door to close. 3. As the garage door opener internally start to travel down (the door should not be moving), have a family member or friend block one of the safety sensors. 4. The garage door opener should internally operate back up, blinking or clicking once it's done. This indicator means the travel limit is in the up position. 5. Run the opener once more, this time do not block the safety sensors. The travel limit should be in a down position. 6. Unplug the opener, reattach chain onto sprocket, and tighten chain to proper tension. 7. Power the opener and operate the garage door motor one cycle up and one cycle down. 8. Adjust travel limits when necessary. Hope this helps!

@dannourie2754 5 месяцев назад

@@sosgds Hey! Your advice worked! Thank you SO MUCH!

@sosgds 5 месяцев назад

That's what we love to hear!

@Tacoma-KIM 5 месяцев назад

Hello, I have the same problem and need to replace the gear. I cannot purchase liftmaster gear kit 41D7675 gear & sprocket assembly direct replacement. Where can I purchase it?

@sosgds 5 месяцев назад

Hello. It's possible the gear sprocket model was changed. What model of LiftMaster opener do you own?

@dabneyoffermein595 2 года назад

The plastic gear broke while in the up position. It will not go back down, just buzzes. Can i do the repair in the up position? Or no? I can't do your procedure to have it in the down position before starting the plastic gear replacement since the gear is broke and jammed up. So is it ok to go ahead with the repair, then figure out the up / down position after the repair? This is past-tense now. I went ahead and did the repair and now i only have two feet of travel down then it reverses back (so starts in the up position and moves two feet down the rail and reverses direction with no flashing light). If i trip the electric-eye, it will immediatly reverse direction with the light flashing.

@sosgds 2 года назад

Hello Dabney! Sorry for the late response. The issue you are facing has to the door with the travel limits. Basically your travel limits are off and you will need to adjust so that when your door closes it does not travel further than the floor. This will prevent it from opening back up. Let me know if this helps.

@davidphan70 6 месяцев назад

why does my lift master have two sprockets. one on top is smaller than the bottom one. I noticed the chain was attached to the top smaller sprocket, but when I had to adjust the chain, I placed it on the larger sprocket. Now the garage door won't open

@sosgds 6 месяцев назад

Thank you for the question. The smaller sprocket is for slower travel. Now if the larger sprocket is not moving your garage door, then there is an issue. I could check the LIMIT SWITCH DRIVE GEAR KIT. Model: 041A2818

@yhz48188 4 месяца назад

Thanks to Nobody-teacher!

@sosgds 4 месяца назад

Thank you for the feedback!

@mturnergolf 11 месяцев назад

How do you know where to line up the chain? My door will lift, but stops halfway as it’s coming up.

@sosgds 11 месяцев назад

Hello. I address this issue in a longer form video. You want to ensure where your travel sensor is located. If the sensor contact is in the middle, then you want to power the motor without the chain on. Once it reaches the up or down contact, then that's where you want to place or set your chain.

@nikoniko893 6 месяцев назад

I made a mistake that I didn't check until after the fact. The slots at the top of the sprocket need to face towards the door otherwise you can't put the plastic cap on correctly.

@sosgds 6 месяцев назад

Correct. Hope it's all working well for you now.

@peterbell9683 2 года назад

I'll blama my system but I could barely hear the commentary! And, seeing as I need to do this exact repair, kinda frustrating. But other videos are playing fine. Oh well... this one looks good.

@garagedoordoctorofhouston6518 3 года назад

Love the video. Do you always unscrew everything manually or just for this vid. I prefer using my impact gun but maybe thats just the lazy side of me lol

@sosgds 3 года назад

Hey Cody! Yeah for some reason I don't use my impact to take off the casing, mainly because sometimes I put them back on too strong and it'll bend the metal. And I figure at the same time this will give the viewer who probably doesn't have a lot of power tools the opportunity to simply use a standard nut driver. Thanks as always for the support!

@Liftmaster1246 9 месяцев назад

Good video I think the sprocket got shoot off because of a heavy door, not balanced

@jsprz5928 8 месяцев назад

Are the sprockets universal? Chamberlain liftmaster 1/2hp chain driven?

@sosgds 8 месяцев назад

Very good question. No they are not. There are specific springs from some Chamberlain motors. Yet I have used a gear sprocket kit for a motor that was not specific for the model. But that was due to an emergency situation to get the door running.

@merc_digglerwarzone8122 Год назад

You just saved me 700$

@rsg1963 11 месяцев назад

Nice video, could have used a little info on chain tightness. Definitely wasn't 5 minutes. 15 if everything went well, not even including tool/area prep, or cleanup.

@sosgds 11 месяцев назад

Thank you for the feedback. The chain needs to have about 1/8 of slack above the rail. That may not sound helpful but it should not be too tight. In fact after installing the rail, if the chain bangs or clangs on the rail then it's best to losen a bit.

@TheBearGrylz 2 года назад

Hey what happens if you weren’t in the down position. I’m a roofer. Not a mechanic. I took it off half way down. The door is heavy. Don’t ask. Am I screwed? Do I remount or can my life not be over?

@TheBearGrylz 2 года назад

I thought it’d be easier w the unit off. I’m gonna remount in same position and work off ladder like you did.

@sosgds 2 года назад

The positioning is key. If you don't start with the limits in the up or down position then it will throw off the repair process.

@ramyjames007 2 года назад

Where do we buy it from ?

@sosgds 2 года назад

Hello. There should be an affiliate link in the description of the video. Do you exactly what type of gear sprocket you need?

@Giustified Год назад

Wait... you removed that internal gear way too quickly. How did you do it? The bottom gear seems to be pressed on.

@sosgds Год назад

Hello. The nylon gear should just set and slip on. I do have a longer video that should show it if you can get past the vlog style format. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-k7ImLL_Emro.html

@sosgds Год назад

So sorry wrong video. This is the video: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-kWQ_hZ-t3RE.html

@SuperFishbreeder Год назад

You should have changed worn gear on motor also it's the right way to do it

@hjhshoms2545 2 года назад

I dont need to see the garage but I do need to see your work

@samuelbadillo7242 11 месяцев назад

Not a clear video at all. My kit contains about 7-8 different washers and I don't recall hearing or seeing anything that references a washer at all. This video works if you've done this task before not if it is a completely new to the process.

@Americansikkunt 8 месяцев назад

It ain’t his fault you used a different kit!