Mich. Admin. Code R. 408.11804 - Definitions; F to M
Rule 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.
Notes
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