<P> On a typical job millwrights: </P> <Ul> <Li> read diagrams and schematic drawings and service manuals to determine work procedures </Li> <Li> operate rigging equipment and dollies to place heavy machinery and parts </Li> <Li> fit bearings, align gears and shafts, attach motors, and connect couplings and belts to precise tolerances </Li> <Li> align and test equipment, and make any necessary adjustments </Li> <Li> perform predictive and operational procedures </Li> <Li> repair or replace defective parts </Li> <Li> service and repair hydraulic and pneumatic systems </Li> <Li> may do some tack welding (a weld that is adequate in size to temporarily hold components in place until it can be completely welded by a registered apprentice welder or a journeyman welder) and fabrication as well as maintain an inventory of replacement parts . </Li> </Ul> <Li> read diagrams and schematic drawings and service manuals to determine work procedures </Li> <Li> operate rigging equipment and dollies to place heavy machinery and parts </Li>

1st step in specialization of labor with a person skilled in crafts