KABA+WEST916.QDJ-695/696 cylinder breaking and unlocking and cylinder replacement due to loss of key (LIXIL Z-1A1-DHYD)

"Lost key, Unlocking the entrance door"

When I arrived at the site and checked, there was no door scope unlike the declaration. There is also no access route from the post. I couldn't even unlock the special self-made tool.

Since it was cylinder breaking and unlocking and cylinder replacement, we presented an estimate and obtained the landlord's approval, and proceeded in a way that the client would bear the cost.

I will check the cylinder collar, but since it is the entrance door of LIXIL, it will be the type of QDJ-695/696.Anyway, I'm ready to unlock it.

There are grinder cutting methods and rotary file bar processing / hole saw processing, but since it is WEST916 and KABA ACE this time, I decided to proceed with rotary file bar processing / hole saw processing.

double cut8mm rotary file bardecided to try a tool recently purchased from China on ebay.This went pretty well. (Fuki products are quite expensive.)

For the upper KABA ACE, I used a rotary file, and for the lower one, I used a WEST916 dedicated hole saw. If you remove the washer ring for hole saw countermeasures, you can sharpen it smoothly. (Be sure to wear protective goggles.)

After all, it took about 40 minutes to complete breaking the two locks, and then replace the cylinder. The two identical cylinder "Z-2A1-DHYD" of LIXIL specifications was used (this is the first time in a while). DT1 It's a fire door, so it's perfect.