To do so, you must align the code with the line on the front of the lock. No tool is needed to reset a Brinks lock 7551 model simply follow these steps: The Brinks 50mm solid brass 4 dial resettable padlock and the 7551 models are probably Brinks’ most recognizable locks though the company has already stopped producing units with a four-digit model.
Reset a 7551 Brinks 4 dial resettable lock
Luckily, there are easy ways to reset the lock of its 7551, 165-50054, and 175-50054 units. It will take a lifetime to crack a code of a Brinks 4 digit combination lock if you do it by trial and error. Ways to Reset a Brinks 4-dial Combination Lock
