Lock not open how to do padlock for a long time useless
Padlock, cut with steel pliers or saw with a saw, for a new one. Usually with a plastic bag about, when used to unlock, so not easy to rust.
Put the lock down to drop the oil into it, then lock the lock in the press, pull out, if it is iron gate, then the lock on the door knocked, Zhen Zhenzhen estimated about the same.
Very simple, ah, the use of special lock lubricants drop a few drops on the refreshing rust, smooth.
Escala and other well-known lock factory mostly use tiger hotolube or Krupp's synthetic lock lubricants. All synthetic base oil production, clear and transparent, colorless and tasteless, low temperature, not dust. Pot full of 30 ml tip small oil bottle, drop a few drops can be easy to use. The maintenance period is six months.
Can not use mineral oil, because the mineral oil viscosity is highly polluted. It is not appropriate to use pencil or black graphite lubrication, can not be lubricated to the internal parts, and there will be heavy metal and color pollution.
School classrooms, dormitory doors are generally wooden doors, padlocks are installed with a lock hinge set on the door, or perforated. If the lock does not open, you can two or three people pushing the door and the door frame lock connection. So that the lock plate of the door will be stretched, pulled and then opened. And finally re-put a lock on the line. Do not use a hammer to lock the lock, it is futile.
