Soundproof Gremon Entrance Door MIWA.GT60R.U9 Cylinder Repair

"Request for inspection due to malfunction"

When you arrive at the scene, you will find an unfamiliar door lever.The cylinder is U9, but what kind of lock does it have?

The phenomenon was that the key did not turn.When I checked, the key stuck, but it didn't turn either.

When I checked the front desk, I couldn't find the carved seal of the model number.The mechanism is like a single bolt two-action with a trigger latch.

The cylinder was a normal LA (LDA) type, removable with a pin.The door itself, supplied by City Hall, is a nearby US Military Base Noise Resistant Soundproof Gremont locks entrance door.The door was thick and heavy.The bolts come out firmly on the top and bottom to enhance the sealing.

As for the work, it was improved only by cleaning the cylinder.MIWA GT60RWas helpful.