WEST801 + ALPHA.TAF Replacement knob mounting work deficiency repair

"Samoutan does not rotate from the room and cannot be locked."

I was the requester to move in today.I entered the room with the key I got, but I was told that I couldn't lock it from the room.

Is it HMD, there are quite a few symptoms that the latch and deadbolt move together when you move the thumbturn with part deformation.

When I arrived at the scene, it was a WEST801 replacement knob.Moreover, it looks brand new.The real estate agent probably exchanged it.

The lock case is Alpha TA-F.The deadbolt and latch move together.In this case, there is a defect in the mounting method of the center shaft (square center).

It can be locked with a key from the outside.However, the position where the key comes out is the position of +/- 360 °.This is not the case.It must be at +/- 180 ° with respect to the center.Many people don't notice.

Change the notch position of the center shaft by 180 ° (it can be installed either way, so if you do not check it correctly, it will be a mounting failure).You have to understand how to set it because it is a universal type (although I have experienced it once).