Performs safety and preventive maintenance inspections of vehicles, systems and equipment; Documents defects, maintenance and repairs; Tests, maintains, repairs, and overhauls light rail vehicle electrical, electronic and mechanical systems and equipment in accordance with schematic drawings, wiring diagrams, operations manuals and manufacturer instructions; Operates and maintains shop equipment and tools; Makes time and material cost estimates and maintains records; Performs re-railing of equipment; Familiarizes other workers in vehicle maintenance and repair, car movements, and maintenance of shop equipment; Installs communication devices on cars; Maintains a safe and clean shop area; Operates computer for related data input and retrieval; Prepares written reports, documents defects and repairs on inspection forms, work orders, or designated computer programs; May be assigned the work of lower level classes in the job series; Performs related work as required. Ability to: Perform maintenance, repair, troubleshooting, rebuilding, overhauling, and safety/preventive maintenance inspections; Analyze malfunctions in electrical/electronic transit equipment and determine repair requirements; Perform electronic fabrication and assembly tasks, such as soldering and wire harnessing; Make time and material cost estimates and keep accurate records; Implement preventive maintenance and safety inspection procedures; Use test and shop equipment and tools; Use parts and supply manuals; Operates a computer for related data input and retrieval; Meet established deadlines; Give oral and written instructions; Effectively read, understand, and use technical information found in repair manuals, service change bulletins, and applicable technical documents, including parts and supply manuals; Learn and stay current on all new technologies introduced into the transit industries as it relates to light rail vehicle maintenance; Familiarize other Electro-Mechanics and other classifications in the proper method of performing their job; Establish and maintain cooperative working relationships with those contacted in the course of business.