Well, you can do it manually. Enter every single digit. I myself have never cracked a safe like this, but I did it with a lockbox (3 colours to choose from and 2 digits, so 300 combinations) and a paddlock or combination lock (3 digits, 1000 combinations in total). You go like this: 0000, 0001, 0002, 0003, 0004, 0005, 0006, 0007, 0008, 0009, 0010, 0011, 0012, 0013, 0014, 0015, 0016, 0017, 0018, 0019, 0020, 0021, 0022, 0023, 0024, 0025, 0026, 0027, 0028, 0029, 0030, 0031... You see where this is going? Basicly, all you're doing is you count to 10000.
