Install, maintain, and troubleshoot relay logic, ladder diagrams, and control components-- photo eyes, motor starters, relays, limit switches, proximity sensors, timers, solenoids, Servo drives, frequency inverters, linear drives, tachometers, and encoders . The Multi-craft Maintenance Mechanic must fully identify, troubleshoot, and repair advanced/ complex problems in all areas of electrical, pneumatic, hydraulic, HVAC/refrigeration, and mechanical issues as needed.