Section R. 408.14247 - Mechanically operated hammers and forging pressesRule 4247.
(1) A mechanically operated hammer or forging press shall be provided with a means for disconnecting the power. Acceptable methods include the following: (a) A disconnect switch ahead of the starter on the primary line with provision for locking and within reach from the floor. Power shall be locked off when the machine is being repaired or serviced.(b) A tight and loose pulley on a countershaft, with a belt shifter, with a means to lock it in the "off" position. The belt shifter shall be within easy reach of the operator.(c) A clutch or drive pulley, with a clutch handle, with a means to lock it in the "off" position. The clutch handle shall be within easy reach of the operator.(2) Springs suspending the ram in a mechanically operated hammer shall be enclosed or restrained from flying in case of breakage.Mich. Admin. Code R. 408.14247