CloudReady licenses are completely transferable, so you can move them from device to device if a piece of hardware breaks.
Go to the "Devices" tab of your my.neverware.com account and simply select the checkboxes present next to the machines you would like to dissociate. Next, scroll to the bottom of the page and click the "Disassociate Selected" button. This will free that particular CloudReady license for use with another device. You can also follow the step by step instructions mentioned here.
To associate this free license with another machine:
1) If the machine already has CloudReady installed on it simply restart/reboot the machine
2) If it a new machine on which CloudReady has not been installed, perform a clean installation process.