A large piece of equipment was being installed in a new paper mill. Two workers were making the final adjustments to a three-ton (2.72-tonne) machine suspended overhead by four threaded rods. They were supporting one end of the equipment with two timbers set on top of two hydraulic jacks. They would jack up the equipment about one inch (2.54 centimeters) at a time and then one employee would climb a set of portable stairs to tighten the nuts on the threaded rods. Then they would switch to the other end of the suspended machine and repeat the operation. After one […]
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