The key to the lock is often gone?
The more dust the more unlock the more ring true, and sometimes will cause the original key can not open the lock, in such a reason!
With the pencil core is the best way, but after use to feel clean hands, lead to the human body is not good!
Do not put the oil, this is a very stupid practice, because the lock inside the bladder is a spring component, once the lock boring oil lock is smooth, but the dust will stick in the lock inside the gallbladder, a long time, plus winter The weather is cold, lock the gallbladder inside the oil sticky dust to solidify up,
Possible reasons are:
1. door lock because of prolonged use, which is a bit rusty, and generally add a little oil can be inserted into the.
The key was squeezed, deformed, and did not match the door lock. You may need to re-assign a key.
May be rusty inside, you can scratch a little pencil core into the keyhole inside, and then repeatedly open several times, it is very smooth!
