R 408.11421 Guarding.

Rule 1421. (1) Where a hazard exists, guards must be provided to protect an employee from contact with moving parts where adjustments are required when a conveyor is in operation. (2) A lift or transfer point must have any nip point guarded and must have a means of complying with power lockout rules. (3) A conveyor that indexes must be guarded so that an employee will not be caught or trapped by the sudden movement of the conveyor. (4) A conveyor must be guarded so that an employee will not be caught or trapped between the conveyor and a stationary or moving part. (5) A trolley conveyor installed overhead and dipping to a work station must have a guard or barrier in compliance with General Industry Safety and Health Standard Part 2. “Walking-Working Surfaces,” as referenced in R 408.11402, or the area must be designated as non-pedestrian and telltales must be hung along the portion of the conveyor that dips to protect an employee from accidental injury. (6) An opening for a conveyor through a floor or wall must be guarded in compliance with General Industry Safety and Health Standard Part 2. “Walking-Working Surfaces,” as referenced in R 408.11402. (7) A conveyor passing over a walkway, passageway, or work area must be provided with a pan or screen-type guard containing sides sufficient to contain any falling material that would cause injury. The designed strength of the guard must be capable of and must continue to withstand the maximum impact load.