You did not explain the reason why you want to crack the password....
Cracking a password to gain access to the existing program is a subject not permitted on this forum.
However, resetting the device (performing a factory reset) to allow it to be used for your own project is a different thing, and other members will gladly help you.
It is all about protecting the intellectual rights of the owner or publisher of the control program in the machine... The factory reset will erase the program that is in the machine, and that is not "password cracking".
Most manufacturers, and users of this forum, will gladly tell you how to perform a "factory reset".
The equipment manufacturer may, or may not, give you a method to get past the password, but be prepared to provide adequate documentation proving that you have the right to access the code.