Disengage the garage door from the opener by pulling down on the emergency pull cord to release the door trolley from the opener carriage.
How to replace chain driven garage door opener.
Please subscribe to my new channel handy homeowner dedicated to how to videos like this one.
Wire the keypad into the wall on the inside of the garage.
How to put a chain back on an automatic garage door opener.
If you like the chain drive system a newer opener will likely be quieter than the old types.
Grasp the end of the chain cable and pass approximately 12 inches of cable through the rail window.
On the outside of the garage mount the wireless keypad using the screw gun.
Of course if the unit is not working it may be time to consider replacing it.
Remove the chain and cable assembly.
Use a step ladder to access the garage door opener s power cord and motor unit.
Add general purpose grease to the idler pulley center hole if it s dry.
Step 2 consider type of opener if you are buying a replacement garage door opener then you ll need to decide between the three main types.
Position a work table near the area under your motor unit to hold the garage door opener.
Garage door openers are available with a chain drive screw drive or belt drive.
Install the new chain and cable assembly.
Look to the end of the rail that hides the screw belt or chain to find the manual pull handle and the bracket to which it.
Press the wall control button or remote so that the opener completes its close.
Chain belt and screw drives.
Run the wire through a conduit and connect it to the garage door opener motor.
Mount the electric eyes about 6 from the floor on the inside of the garage.
Lay the new chain and cable assembly beside the rail.
Lower the motor unit down.
Connect the lifting arm from the door to the track.