We have to study and know the nuts and bolts of the new machine before operating it.
Please check it.
We have to read the owner's manual for the new machine before operating it.
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We have to read the owner's manual for the new machine before operating it.
kumenglishWe have to
study andknow the nuts and bolts of the new machine before operating it.
I would not use two verbs in a row like that.
It's slightly problematic that the use of 'nuts and bolts' in your sentence is a bit ambiguous between the literal and the figurative because machines do have literal nuts and bolts.