A combination lock is a popular mechanical or digital locking device that uses a specific sequence of symbols or numbers to open rather than a traditional key.
A combination lock is a secure locking device in which a specific sequence of symbols, typically numbers, is used to open the mechanism. The sequence may be entered using a single rotating dial that interacts with several interior discs, by using a set of multiple rotating discs, or through a modern electronic or mechanical keypad.
Available in designs ranging from inexpensive luggage locks to heavy-duty gym padlocks and high-security safes, these locks provide keyless convenience. Standard mechanical combination locks function without batteries, making them a lasting option for securing lockers, bicycles, sheds, and gates.
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Usually, you must open the lock using the current combination, rotate the shackle 90 or 180 degrees, press and hold the shackle down, dial the new combination, and release the shackle. Always refer to the specific brand manual as the reset position varies.
Turn the dial to the right three full times and stop on the first number. Turn to the left one full turn, passing the first number, and stop on the second number. Turn to the right directly to the third number, then pull up the shackle to open.
If you lose the code and the lock is not attached to anything, some manufacturers can look up the default code via a serial number stamped on the back. If it is a set-your-own combination lock or tethered to a locker, you may need a locksmith or bolt cutters to remove it.
Traditional mechanical combination locks operate via gears and cams and do not require power. However, digital or electronic combination locks require standard batteries to power the keypad and locking mechanism.