R 408.41527 Pinch point and struck by protection.

Rule 1527. If an employee could be struck by the rotating superstructure of an excavator or if clearances between the rotating or moving structure of an excavator can create a pinch point for an employee, the employer shall do either of the following: (a) Barricade the hazardous area. (b) Train and instruct each employee to stay out of the danger area and require a danger sign, as prescribed in Construction Safety Standard Part 22 “Signals, Signs, Tags, and Barricades,” as referenced in R 408.41505, be affixed to the rear and sides of the house and counterweight. The danger sign shall have additional lettering to indicate that the counterweight is swinging. HOISTS AND ELEVATORS