I took a good look, and some pictures and figured out I was about to order the wrong part since I watched the other video about this topic. My opener has the "T" rail, not the square (box?) rail. My bad...almost. It still looks like something I can do so I ordered the part and now we wait. Thanks for doing these videos. I've already replaced the drive gears and worm gears in both openers in the past and those were fairly painless. Your tips and insight should make this job easier for me.
Thank you very much. The instructions from the manufacturer of the trolley were not nearly detailed enough. I then watched another video and was still not sure what to do. I watched your video, felt confident that I could do it, and now about an hour later it is done and works great.
Your video helped me make the correct decisions during the changeout of my Liftmaster 41c5141-1. My Craftsman opener has a chain and an attached cable. I had to improvise a bit but all in all the job went well. Took me about 1.5 hours but the opener is smooth and a whole lot less noisy. Thanks.
Thanks for posting this - was very helpful. Ordered a new trolley from the link in the description. Arrived the next day via Priority mail! Installed in less than 30 minutes :)
Andre, excellent video - short and to the point. I have a question: is there a common reason why the inner and / or outer trolley parts break or tear apart? Is it because (a) the chain, which pulls strongly at each end of the outer trolley might have too much tension in it, or (b) the moving parts of the door have not been lubricated enough so the friction and weight of the door parts cause the metal to shear or stress, or (c) the metal is cheaply made and so it deteriorates after 5 to 10 years of moderate use? Clearly, you don't know the details of each garage door setup, so assuming the garage door, motor, and general setup were done correctly to begin with, what ideas do you have regarding the source of such wear?
@@GarageDoorGuidance Once the parts arrived on Thurs last I replaced the broken trolley and lubricated the new one generously with lithium grease, and will maintain it better in future. Thanks for the reply and for your very helpful video.
To remove that part away from the header do you need to do something special like secure the bar or something cause I need to remove the header because is sagging. Please let me know thanks
The springs are very dangerous I’d be extremely careful IF you try to get them off yourself. Call around someone should be able to come out and take it off for like $100
My trolley is dis engaing on its own often, 2,3 times a week, not that often - , is there a easy fix beside taking the whole thing down ? would tighting the chain help ? or greasing the track ?
My beltdrive Liftmaster trolley kit came with a full compressed spring/shaft bolt replacement part. One end is square and fits a 1/2 inch wrench, but the other is 3-sided with grooves cut into it where the washer goes. Which tool do I use for that end to release the tension, or how do I adjust that spring? Seems like it should only be partially compressed, but there's nothing on that end to hold it in place to loosen the square nut shaft...
Square side goes on the outside, once you got the desired tension you do need to release the spring. I usually use a flathead screwdriver and insert into one of the little indentations in the washer to keep it in place and then simultaneously turn the square end. It should release after maybe a quarter turn
@@GarageDoorGuidance I think you many be referring to the gear and sprocket on top of the motor. I am referring to the "roller" at the end you were working on. I mistakenly called it a sprocket with teeth. It actually is a "roller" with no teeth which is attached with one bolt.
That would make more sense. If it’s old and cracking you might as well replace it but for the most part I don’t have to change them unless they break due to user error ( setting limits incorrectly and having the trolley run into the idler pulley )
I have messed up something by replacing drive gear. The cable end of chain goes sprocket and bangs then reverses. I have tried with the force and limit controls. I didn't mark where they were before. Is the gear at bottom of Drive shaft supposed to go a certain direction? I have replaced these before but never had this problem. Thanks
Solo 1 you have to make sure the trolley is in a position that matches the limit switch. It’s difficult to explain without showing you. Would you like me to put a video up showing this ?
when you replace the trolly , does it matter what exact location you leave it once its put together? my trolley doesnt stop even with the peice it meets, and then it goes backwards. I cant figure it out. I had to replace the gears in the motor and this trolly goes forward, almost overs the piece it meets before continuing, but then goes in reverse and stops so the door opens about 5 inches, then closes again. im stummped
It does matter, you need to have it positioned relative to the limit switch position. If the limit position switch is in closed or open position the trolley has to be placed there also. Have you already gotten it fixed?
@@GarageDoorGuidance I got the trolley to hook up but then the i pushed the limit switch too hard and had to open the motor again. It came off its little black holder but I popped it back in. when I turn the limit switches,, it doesnt look like the limit screws even move?? and the carraige is not changing positions either.. what can be happening?? I keep giving up. I replaced the gears myself but now icant get the limit switches to make the chaing move up or down. the door opens then goes back down.. i give up.
@@GarageDoorGuidance yes! I’ve worked so many hours on this and I’m So proud i changed the gears myself. I need to send u a video. Will do in the morning. Your videos are by far the most helpful! Thank u!
Mr Reymundo I usually unscrew the two half inch bolts that connect the rail to the plastic wheel at the end. You can then shift the rail left and right in order to slide the old trolley off and new on.
Hi Andre, I have "Lift-Master The Professional Line, 1/3 H.P. Security+". Yesterday the trolley was broken when I tried to open the garage door. I watched this video. It seemed quite informational. Thus I plan to try DIY. Question #1, Part ordering: Will the part that you referred "The replacement trolley can be ordered through amazon here: amzn.to/2Ml66sq" LIFTMASTER Garage Door Openers 41A3489 Complete Trolley Assembly" work on my model? Questions #2. Any tips on how to position the trolley correctly, and adjust the up and down limit in order to avoid it from going too far to hit either the door/wall or the light ball on the opener? Would really appreciate your advice. Jason
Perfect guide! I watched video this before replacing the trolley on my garage door opener. It took all of 15 min. thanks to this walkthrough.
I took a good look, and some pictures and figured out I was about to order the wrong part since I watched the other video about this topic. My opener has the "T" rail, not the square (box?) rail. My bad...almost. It still looks like something I can do so I ordered the part and now we wait. Thanks for doing these videos. I've already replaced the drive gears and worm gears in both openers in the past and those were fairly painless. Your tips and insight should make this job easier for me.
Thank you very much. The instructions from the manufacturer of the trolley were not nearly detailed enough. I then watched another video and was still not sure what to do. I watched your video, felt confident that I could do it, and now about an hour later it is done and works great.
Your video helped me make the correct decisions during the changeout of my Liftmaster 41c5141-1. My Craftsman opener has a chain and an attached cable. I had to improvise a bit but all in all the job went well. Took me about 1.5 hours but the opener is smooth and a whole lot less noisy. Thanks.
Thank you so much for this video!! I was able to replace my Trolley on my own saving lots of $$$. Video shows every steps. Thanks again.
Love seeing these kinds of comments haha
Thanks for posting this - was very helpful. Ordered a new trolley from the link in the description. Arrived the next day via Priority mail! Installed in less than 30 minutes :)
Love it (:
Great video! Just removed the damaged trolley and waiting for the part to arrive today so I can finish the project. Thank you!
Noel Salanga glad I could help (:
Took me about 45 min but got it done thanks to your video
Omar Hernandez glad it worked out, videos always make things look easier than they sometimes are haha. Thanks for watching !
Bruh!!!!! You just saved me some serious money! Thanks!
Outstanding. Saved me a ton of money. Thanks
Very helpful, they want 300.00 to change mine out! i'll do it myself!
Good video.Husband going to fix my sister's door this week.I will let you know how it goes.
great vid boss
Andre, excellent video - short and to the point.
I have a question: is there a common reason why the inner and / or outer trolley parts break or tear apart? Is it because (a) the chain, which pulls strongly at each end of the outer trolley might have too much tension in it, or (b) the moving parts of the door have not been lubricated enough so the friction and weight of the door parts cause the metal to shear or stress, or (c) the metal is cheaply made and so it deteriorates after 5 to 10 years of moderate use?
Clearly, you don't know the details of each garage door setup, so assuming the garage door, motor, and general setup were done correctly to begin with, what ideas do you have regarding the source of such wear?
They do need occasional lubrication so I would say B.
@@GarageDoorGuidance Once the parts arrived on Thurs last I replaced the broken trolley and lubricated the new one generously with lithium grease, and will maintain it better in future. Thanks for the reply and for your very helpful video.
Great information from you bud! Thanks for the time saving help!
Nick Acciardo appreciate the positive feedback. Let us know if you need a specific video, we’d love to help. Have a good day!
I plan on the installation of a new belt and trolley unit, as soon as the parts arrive for my Liftmaster Formula 1. Thanks for the update...👍
Nick Acciardo the process is pretty much the same so you shouldn’t have a problem. But if you do we’re happy to help. (:
Thank you
To remove that part away from the header do you need to do something special like secure the bar or something cause I need to remove the header because is sagging. Please let me know thanks
The springs are very dangerous I’d be extremely careful IF you try to get them off yourself. Call around someone should be able to come out and take it off for like $100
@@GarageDoorGuidance thanks for the advice I appreciate it..
My trolley is dis engaing on its own often, 2,3 times a week, not that often - , is there a easy fix beside taking the whole thing down ? would tighting the chain help ? or greasing the track ?
If it’s disengaging on it’s own I would assume the trolley is damaged to be doing that, at which point I’d replace the trolley/carriage assembly
My beltdrive Liftmaster trolley kit came with a full compressed spring/shaft bolt replacement part. One end is square and fits a 1/2 inch wrench, but the other is 3-sided with grooves cut into it where the washer goes. Which tool do I use for that end to release the tension, or how do I adjust that spring? Seems like it should only be partially compressed, but there's nothing on that end to hold it in place to loosen the square nut shaft...
Square side goes on the outside, once you got the desired tension you do need to release the spring. I usually use a flathead screwdriver and insert into one of the little indentations in the washer to keep it in place and then simultaneously turn the square end. It should release after maybe a quarter turn
Would you go ahead and put a new chain sprocket (round piece at the end with the teeth) while you are changing the trolley?
Changing that part is more involved, if it’s okay I’d leave it alone
@@GarageDoorGuidance I think you many be referring to the gear and sprocket on top of the motor. I am referring to the "roller" at the end you were working on. I mistakenly called it a sprocket with teeth. It actually is a "roller" with no teeth which is attached with one bolt.
That would make more sense. If it’s old and cracking you might as well replace it but for the most part I don’t have to change them unless they break due to user error ( setting limits incorrectly and having the trolley run into the idler pulley )
@@GarageDoorGuidance Thanks. Great video and very informative.
are the trolley's relatively universal? i.e. can I find one at the local big box that will fit my craftsman?
Dan T I’ve found they’re all pretty much the same.
@@GarageDoorGuidance thank you very much!
If I were to purchase this Trolly part Will it this work on a Raynor?
I wouldn’t try to put it on a raynor
@@GarageDoorGuidance Why not?
I have messed up something by replacing drive gear. The cable end of chain goes sprocket and bangs then reverses. I have tried with the force and limit controls. I didn't mark where they were before. Is the gear at bottom of Drive shaft supposed to go a certain direction? I have replaced these before but never had this problem. Thanks
Solo 1 you have to make sure the trolley is in a position that matches the limit switch. It’s difficult to explain without showing you. Would you like me to put a video up showing this ?
Garage Door Guidance I would L O V E you to help with a video!! Thank you so much!!!
Solo 1 it’ll likely help others that run into the same situation so win win (: I’ll try my best to get that up tonight !
Solo 1 I couldn’t find an opener I could show you with today. I’d be happy to help you through texts photos ?
Garage Door Guidance a sketch maybe of the position of the trolly in connection with the drive gear. Thanks for anything you can help
LOL the classic 1/2 inch wrench! If you loose it your in trouble!
I keep spares of all now a days lol
when you replace the trolly , does it matter what exact location you leave it once its put together? my trolley doesnt stop even with the peice it meets, and then it goes backwards. I cant figure it out. I had to replace the gears in the motor and this trolly goes forward, almost overs the piece it meets before continuing, but then goes in reverse and stops so the door opens about 5 inches, then closes again. im stummped
It does matter, you need to have it positioned relative to the limit switch position. If the limit position switch is in closed or open position the trolley has to be placed there also. Have you already gotten it fixed?
@@GarageDoorGuidance I got the trolley to hook up but then the i pushed the limit switch too hard and had to open the motor again. It came off its little black holder but I popped it back in. when I turn the limit switches,, it doesnt look like the limit screws even move?? and the carraige is not changing positions either.. what can be happening?? I keep giving up. I replaced the gears myself but now icant get the limit switches to make the chaing move up or down. the door opens then goes back down.. i give up.
@@lucydoyle9010 is there a way you can get me a picture of trolley position and limit switch positions ? You can send me an email through my website
@@GarageDoorGuidance yes! I’ve worked so many hours on this and I’m
So proud i changed the gears myself. I need to send u a video. Will do in the morning. Your videos are by far the most helpful! Thank u!
@@lucydoyle9010 send email to my channel name at yahoo
This is nice, but I wanted to see the easiest way to drop the assembly from the ceiling
Mr Reymundo I usually unscrew the two half inch bolts that connect the rail to the plastic wheel at the end. You can then shift the rail left and right in order to slide the old trolley off and new on.
Hi Andre,
I have "Lift-Master The Professional Line, 1/3 H.P. Security+". Yesterday the trolley was broken when I tried to open the garage door. I watched this video. It seemed quite informational. Thus I plan to try DIY.
Question #1, Part ordering: Will the part that you referred "The replacement trolley can be ordered through amazon here: amzn.to/2Ml66sq" LIFTMASTER Garage Door Openers 41A3489 Complete Trolley Assembly" work on my model?
Questions #2. Any tips on how to position the trolley correctly, and adjust the up and down limit in order to avoid it from going too far to hit either the door/wall or the light ball on the opener?
Would really appreciate your advice.
Jason
I replied to your email 👍🏻