025c0020 is a replacement screw drive sprocket coupling.
Garage door opener drive coupling.
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This drive screw coupler part number 30257t s is for garage door openers.
When the coupling that connects to the motor unit in your garage door opener is damaged or wears out it s easy and inexpensive to replace it with the liftmaster 25c20 screw drive sprocket coupler.
Check the manual for your specific model number before ordering to ensure compatibility.
Then insert the drive screw shaft into the coupler you ll have to rotate the screw shaft to get the squared end lined up with the square hole in the coupler and bolt it back in place.
Wear work gloves to protect your hands.
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This replacement part is compatible with various screw drive garage door opener rail assemblies made after 1995.
Unplug the garage door opener before installing this part.
Only 3 left in stock order soon.
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It s really simpler than it sounds.
Place screws and bracket aside detach rail and slide it backward on the rail assembly drive gently remove damaged coupling by sliding it off rail sprocket place new sprocket coupler onto rail sprocket by aligning teeth in new coupler with grooves in rail sprocket insert rail drive attached coupling back into power unit sprocket by aligning teeth with grooves reattach rail power unit bracket with nuts and hex screws from step 1 reconnect power and adjust travel and force limits.
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Pull the coupler off the motor shaft and insert the new one in its place.
The 25c20 liftmaster screw drive coupler from garage door supply company is compatible with several liftmaster and chamberlain residential garage door operators manufactured after 1995.
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Drive screw coupler 30257t s connects the drive screw to the motor shaft.