Published on February 18, 2017
Replacement of the drive belt on a Chamberlain garage door opener.
Be sure to follow all safety recommendations when working on any garage door opener. Before starting work, make sure power is completely off to the unit by disconnecting the unit or by shutting off the breaker to the power circuit. You may also need PPE (Personal Protective Equipment) while doing this job. Recommendations are Work gloves and safety glasses.
Before getting started, make sure you're up to the task. The part I ordered did not come with installation instructions, so I did some research before attempting the project to make sure it was even something I should attempt. I found numerous tips on the internet including videos and step by step instructions. I'm also providing a link to the owner's manual below.
This project was completed in approximately 40 minutes and this was the first one I've ever done. Should you not feel confident to attempt the project or not have adequate tools, it may be time to consider calling a professional for help. If you decide to attempt this, take your time and be careful with every step.
While researching this, I was pretty sure I would need to lower the entire unit to the floor to make the belt replacement, but once I had a better look at my unit I was able to replace the belt with the unit still mounted to the garage ceiling.
For this project I needed several screwdrivers, 1/4" wrench, 14 mm wrench, Channellock pliers, needle nose pliers, step ladder, work light and shop towel. Your requirements may differ depending on your installation.
Before purchasing your own parts, you might try contacting Chamberlain as the part you're looking for may have lifetime replacement.
www.chamberlai...
I only replaced the drive belt on this unit after inspecting the masterlinks and tensioner assembly, determining that they were okay. I found replacement parts listed below reasonably priced on Amazon should you need any or all of them.
For use with Liftmaster belt drive door opener models 1270, 1280, 1280R.
For use with Chamberlain garage door opener models 8100, 8200, and 9200.
For standard 7 foot rail assemblies ONLY.
Amazon Affiliate Links:
Belt: amzn.to/2lxv5go
Masterlink: amzn.to/2lQtvaJ
Tensioner Assembly: amzn.to/2lfrj8X
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