The anti theft door lock can be opened with a key, but if you use a handle, the tongue is not in pla

1. The driving foot on the transmission block in the lock body corresponding to the square rod in all handles is broken, and generally the lock of Wanjia or Hangying will have these two problems. To replace the lock body. The material of the parts used in the old lock. After a long period of use, the parts oxidize and become brittle. Extremely susceptible to breakage.

It's simple. , Use a special lock lubricating oil to drop a few drops on the refreshing rust removal, smooth.

Most of the well-known lock factories such as Escola use fully synthetic lock lubricants from Hotolube or Kluber. Fully synthetic base oil production, clear and transparent, colorless and odorless, low temperature resistance. , not contaminated with dust.

Tao is full of 30 ml needle-nosed small oil bottles, drop a few drops, easy to use. The maintenance interval is six months.

Mineral oil should not be used because it is highly viscous and prone to dust. It is also not suitable to use pencil end or black graphite lubrication, which cannot lubricate the internal parts, and there will be heavy metal and color pollution.

It was a part of the lock body that broke off one end.