Interested in Language
It's me again.
This leaflet provides advice on the options you have under LOLER relating to the requirement for thorough examination and inspection of lifting equipment and explains the benefits of having an ‘examination scheme’. However, this does not replace the necessity for operators to carry out checks to lifting equipment and accessories before use.
I would interpret the bolded fragment of the sentence as follows:
However, this does not change the fact that operators have to carry out checks .....
However, this does not change the fact that it is operators who/that have to carry out checks .....