Section R. 408.14525 - Maintenance and servicingRule 4525.
(1) A power source of a machine or equipment to be repaired or for die repair shall be locked out by each employee doing the work if unexpected motion would cause injury. Residual pressure shall be relieved or isolated before and during the work if unexpected motion would cause injury. The means of isolation shall also be locked out.(2) An employee who services or sets up a hot chamber die casting machine shall do either of the following:(a) Pull the plunger from the goose neck.(b) Insert a safety bar to block action of the plunger.(3) During service or set up, an extractor shall be locked out as prescribed in subrule (1).Mich. Admin. Code R. 408.14525