Remove the outer nut and lock washer from the trolley threaded shaft and pull the threaded shaft out of the trolley.
Garage door chain sprocket replacement.
041c4220a is a complete chain drive gear and sprocket replacement kit.
Helical gear and top hat assembly worm gear wear bushings grease and hardware needed to replace the chain drive gears.
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Pull the chain off the motor unit sprocket and out of the chain spreader.
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Simply remove those for replacement.
Replacement gears and sprockets for genie model garage door openers.
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If it is the entire assembly you need just replace the assembly with your new one.
Genuine genie replacement belt and chain drive sprockets main drive gears and more.
If it is just a gear you are replacing you should remove it after you have unbolted assembly and replace it with a new one by going in reverse order.
Slide the outer trolley away from the inner trolley.
This gear kit on amazon.