WG-8 Level MUST possess experience or training using common hand and power tools and a small variety of test and measurement devices to make mechanical repairs; experience removing, adjusting, replacing, cleaning, and installing a variety of parts, components, and accessories; experience which demonstrates a basic understanding of mechanical, electrical, and hydraulic theory applying to vehicles; and skill to replace, fit, install, and make adjustments; experience demonstrating an understanding of the makeup and operation of the various individual systems maintained and their interrelationships; experience reading and interpreting parts lists, manufactures repair manuals, diagrams, and electrical schematic. Knowledge of electrical, electronic, hydraulic, pneumatic, and other non-mechanical systems that have a functional relationship and effect on the operation of mechanical systems; knowledge of hydraulic lifting, loading, turning, and positioning systems and their mechanical, hydraulic, pneumatic, electrical, and electronic control; knowledge of electronics, sufficient to identify and replace defective components, such as sensors, diodes, and circuit boards; ability to repair or overhaul major components such as diesel, multi-fuel or gasoline engines, turbine engines, automatic and manual transmissions, drive line assemblies, electrical and electronic systems and accessories, fuel injection systems, and emission control systems.