Section R. 408.14241 - Guards, hammers, and forge pressesRule 4241.
(1) The portion of a treadle at the rear of a hammer shall be guarded so that scrap or other material cannot collect below this portion of the treadle and prevent it from returning to normal position.(2) A treadle shall be blocked or otherwise secured during the time an employee is exposed under the ram or between the dies.(3) A scale guard constructed of not less than 20 gauge sheet steel or equivalent material shall be provided at the back of a hammer, so arranged as to stop flying objects and anchored or secured so that it cannot tip or fall.(4) A foot operated device, such as a treadle, pedal, bar, valve, or switch, shall be substantially and effectively protected from unintended operation.Mich. Admin. Code R. 408.14241