How To Change Drive Gear On Craftsman Garage Door Opener

Nick sgaragedoorservice 148 624 views 41 15. This is a video on how to change the gear sprockets in a craftsman garage door opener. Pull the drive gear off the drive shaft.

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Slide the outer trolley away from the inner trolley.

How to change drive gear on craftsman garage door opener.

Step by step garage door opener gear fix. Pull the chain off the motor unit sprocket and out of the chain spreader. Put a thin layer of the grease included in the kit on the gear. Replace the drive gear.

Lay the chain on the garage floor while you complete the repair. 2 drive out the roll pin holding the old gear in place with a pin punch and hammer. Insert the new roll pin through the gear and drive shaft. Use a punch and hammer to drive the roll pin out of the drive shaft.

3 lube all the teeth of the replacement gear and the worm gear it engages then place the new gear on the shaft and drive the roll pin back in to hold it. 4 replace gear mechanism lining up the screw holes on top. Slide the new drive gear onto the drive shaft and line up the mounting hole in the drive gear with the hole in the drive shaft. How to replace a gear and sprocket in a chamberlain liftmaster sears craftsman garage door opener duration.

With the gears back in place tighten the chain as directed in your owner s manual. Remove the outer nut and lock washer from the trolley threaded shaft and pull the threaded shaft out of the trolley. Replace the cover on the garage door opener plug it back in and start enjoying your now functioning garage door opener. This was a craftsman model 139 53976srt.

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