Basic understanding of hydraulics, pneumatics, conveyor and auger systems, power tools, overhead cranes, welding and fabrication, SMAW, GMAW, plasma torch, oxy/acetylene cutting, and wheeled vehicle repair and operation (including yard tractors, forklifts, aerial lifts, skid steers, and wheel loaders). Plant/Yard: All types of weather conditions (year-round, Mid-west and Northeast), dirt/dust, noise from heavy machinery/vehicles, vibrations from machinery and vehicles, loud noises, little to no climate control, varying amounts of light, stairs, narrow walkways.