English to Croatian Medical Electronics / Elect Eng

Using your fingers, align the new adapter with the DOC, ensuring the key is aligned with the slot in the optical carriage, and firmly press it into place. (...) Once the optical carriage is locked into position at the front of the DOC firmly press the adapter into place. (...)

The DOC optical carriage moves all the way to the back and restores all DOC functions to their normal state.