1 First, prepare some basic tools, such as screwdrivers, wrenches and pliers. We should prepare some basic tools, such as screwdrivers, wrenches and pliers.

2. Secondly, remove the internal parts of the combination lock, including the lock core, lock tongue and spring. It should be noted that these components are usually very fragile and need to be handled carefully to avoid damage.

3. Finally, if you need to repair the combination lock, you can check whether the internal parts are damaged or loose and carry out maintenance. If the parts cannot be repaired, you need to replace them with new ones.