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Tightening of Large Counter Weights on Equipment with Torque Wrench

From Mountz, Inc.

Product Support Engineer from a Medical Manufacturer needed to develop a process that would assure system installation contractors could tighten large bolts on a 4000 lb rotating counterweight to a torque specification of 750 lbf ft. Accessibility to fasteners was limited and precluded the use of pneumatic or hydraulic torque multipliers. It was imperative that contractors properly torqued the fasteners to prevent potential liability that could result if counter weight came free and injured a patient.

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Topics of Interest

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The torque wrench's main purpose: to tighten a bolt or nut with the correct amount of torque while avoiding over-tightening.