Ability To: Read and write English at the level necessary for successful job performance; Perform maintenance and repair work on plumbing, heating, air conditioning, and electrical systems, mechanical equipment, building structures, and various types of electrical appliances, pumps, and motors; Read, interpret, and work from plans, drawings, and specifications; Keep records; Follow oral and written directions; Lay out, assign, and inspect the work of other employees. Knowledge Of: Methods, materials, and equipment used in building maintenance and repair work, and in the operation and repair of plumbing, heating, air conditioning, and electrical systems; The methods, materials and equipment used to repair and rebuild power lawn mowers and related equipment, pumps, compressors, and small motors; Safety orders of the Division of Industrial Safety dealing with heating, electrical, plumbing, and other mechanical systems.