Section R. 408.11804 - Definitions; F to MRule 1804.
(1) "Floor-operated crane" means a top running overhead crane that is controlled by an operator on a floor or independent platform.(2) "Footwalk" means a walkway which has a handrail and which is attached to the bridge or trolley for access purposes.(3) "Frequent inspection" means a visual examination by the operator or other designated personnel, with written records required.(4) "Gantry crane" means a crane similar to an overhead crane, except that the bridge for carrying the trolley or trolleys is rigidly supported by 1 or more legs running on a fixed rail or other runway.(5) "Hoist" means a system of power-driven drums, gears, cables, chains, or hydraulic cylinders capable of lifting and lowering a load.(6) "Hooker" means an employee who by using predetermined lift points attaches the load to the hook, in hoisting or setting the load or both.(7) "Hot metal crane" means a crane that transports molten metal.(8) "Limit switch" means a switch that is operated by some part or motion of a power-driven machine or equipment to alter the electric current associated with the machine or equipment.(9) "Load" means the total superimposed weight on a load block or hook.(10) "Load block" means the assembly of hook and shackle, swivel bearing, sheaves, pins, and frame, suspended by the hoisting ropes or chain.(11) "Magnet" means an electromagnetic device carried on a crane hook that picks up the load magnetically.(12) "Main switch" means a switch on a crane controlling the entire power supply to the crane, except that a magnet and convenience outlet circuit may bypass the main switch.(13) "Modified" means a change in design or rating.Mich. Admin. Code R. 408.11804