The hazard
An overhead crane moves heavy loads right over our heads. A dropped load, a swinging load, a failed brake or a bad rope can hurt or kill someone below. Much of your protection comes from checks and habits that take a few minutes: knowing the rated load, rigging well, testing before you lift and keeping people out from under the load.
The action
The employer must require the operator to avoid carrying loads over people (29 CFR 1910.179(n)(3)(vi)). No one may ride on the load or hook while hoisting, lowering or traveling (29 CFR 1910.179(n)(3)(v)). Use the warning signal when the crane travels, plan the path ahead and clear it before the lift. (29 CFR 1910.179(b)(vi))
ASK THE CREW
Who on this site is designated to operate the crane?
From the talk: Overhead crane safety. Read it in full, free, with the questions and the sign-in sheet.