Using your MasterLock 3KA3523 padlock is easy. Just insert the key (number 3523) into the lock's cylinder and turn it to unlock. To lock, close the shackle firmly until you hear a click. Remember, these padlocks are keyed alike, so one key can open multiple locks if you've ordered them that way. When using the padlock, make sure to secure it to a sturdy object. Avoid exposing the padlock to extreme weather conditions for long periods as it might affect its performance. For maintenance, you can wipe the padlock with a dry cloth regularly to keep it clean. If it seems a bit stiff, you can use a small amount of graphite powder in the keyhole to lubricate it. Never try to re - key the padlock yourself as it's non - rekeyable, and any attempt to do so might damage the lock and void the warranty.
