She appears to have skills as a motor rewind mechanic, or the assistance of them. Calculation are needed to rewind motors/generators....this can't be "ballparked" and/or guessed.
Too, she would have skills as an industrial millwright as she's replacing bearings and balancing.
And yet too, she would have skills as an electrician.
And possibly, she'd have skills as a machinist, along with having access to mills, lathes, grinders, etc...
She's pretty skilled.......