Replacing the lock from the sliding door lock MIWA-SL78 to Alpha-f4056

"The key is no longer stuck, so I want you to exchange the key."

It was a sliding door lock, but it was an old model SL78 of MIWA disc tumbler cylinder.Moreover, the sliding door is a fixed type.

The door must be removed for replacement.This work took a lot of time.

There is also a screen door on the room side.This screen door always gets in the way. You have to choose one with a thinner thickness on the thumbturn side.

First of all, it is work to remove the door, but it seems that it is necessary to do it in the same way as removing the aluminum sash, but it was a difficult place to find a place to pull it up.

I managed to remove it and install it, but the tap for installation is broken.This is also repaired with a speed nut and attached.

The center of the outer cylinder unit and the indoor samutan unit is Alpha-f4056, so it was able to be done fairly smoothly.