The four-wheel combination mechanical code lock is a lock that is often used by the vault door . It has a high degree of stability. Even if there is no electricity, there is no need to worry about the opening problem, and it is not as weak as an electronic product. It can be placed. It can be used for many years, so it is highly favored by consumers. But everyone also knows that even the best products will have problems. The problem with the most locks is that they cannot be opened. The same goes for the vault door lock combination mechanical locks. How to solve it? The following Xiao Bian will introduce to you the use of the next four-wheel combination mechanical lock and change the password method.
Jinkumen four-wheel combination mechanical lock use method:
The factory gate password is “50â€, and the password disk is turned left five times to stop and align. Turn the cipher dial to the right until it is terminated. Press the handle and the lock bolt will retract to open. Default password - 10, 20, 30, 40
Open sequence:
1. Turn the dial clockwise (counterclockwise) so that after the first group number 10 has been turned on four times, the dial is still pressed clockwise (counterclockwise) and the fifth time 10 is accurately aligned with the opening marker.
2. Turn the dial counterclockwise to make the second group of numbers 20 open markers three times. Still, rotate the dial counterclockwise and align the fourth 20 accurately with the opening marker.
3. (Shun) Turn the dial counter-clockwise to make the third group of numbers 30 over the second opening mark, then still rotate the dial counterclockwise and align the third time 30 accurately with the opening mark.
4. Turn the dial in the reverse (shun) clockwise direction to make the fourth group number 40 open once. Afterwards, rotate the dial in the reverse (clockwise) direction, and align the second 40 with the opening marker accurately.
5. Turn the dial clockwise (counterclockwise) until it stops and the lock opens.
Lockout: The counterclockwise rotation of the dial for more than five weeks, the code lock is in the locked state.

Jinkumen four-wheel combination mechanical code lock replacement password method;
1. Open the library door and open the small door at the back of the library door.
2. Turn the handwheel to extend the latch mechanism and the latch is in the locked state.
3. After the code lock is locked, mark it with the change number, input the last password (10, 20, 30, 40) according to the above-mentioned opening sequence, and stop the last group number 40 on the change number mark.
4. Insert the number key into the key hole on the back of the lock and rotate counterclockwise to the dead point to leave the key in the keyhole.
5. Choose the new four passwords, and do not use the numbers between 0-20 for the last set of passwords. In order to increase the confidentiality level as much as possible, do not use 0 or 5 for the last number in each group, and do not use increment or decrement numbers.
The above is the method of use and modification of the four-wheel combination mechanical lock of the vault door. If you encounter any problems during the operation, you can consult us at any time.
ST30/40 Fixed Stereo Microscope
St30/40 Fixed Stereo Microscope ,Used Stereo Microscope,Swift Stereo Microscope,The Stereo Microscope
Ningbo Beilun Kalinu Optoelectronic Technology Co.,Ltd , https://www.nbyxmicroscope.com