Ability to hear and understand audible alarms, detect changes in noise levels of equipment Capable of frequently standing; walking; balancing, sitting; climbing (ladders, stairs, ramps, catwalks, stacks and the like as required); stooping; squatting; crouching; crawling; kneeling; reaching; grasping; pushing; pulling; lifting (min. Installs, tests, removes and replaces motors, generators, rotating equipment, rectifiers, batteries, transformers, regulators, reactors, circuit breakers, disconnecting switches, instruments, control relays, communication equipment, lightning arrestors and other auxiliary equipment with control apparatus in the generating station and associated substation.