Ability to work outdoors, in extreme temperatures, wet/humid environments, and/or with vibrationWorking with mechanical and chemical hazards and conditions including fumes, odors, dusts, gases, and/or poor ventilationAbility to climb, talk, crouch, stand, balance, reach, grasp, pull, lift, see, hear, and operate tools and vehicles. Starts machine to feed revolving cable into opening, stopping machine and changing knives as necessary to conform to diameter or contour of pipe.