Perform repairs, calibrations, maintenance, and parts replacement on mechanical components of PDX systems and/or equipment, including but not limited to: Perform preventative maintenance; Calibrate equipment; Monitor system performance; Troubleshoot problems; Replace worn parts; Evaluate system condition and make reports; Perform emergency repairs; Track and replace conveyor belts; Support operational contingency plans as required; Maintain, test, & repair revolving, sliding, and overhead doors; Maintain a clean working environment; Maintain tools and instruments; Work in a safe manner following all safety protocols and requirements. Work cooperatively with internal and external customers including the Transportation Security Administration (TSA), Airport Operations Supervisors (AOS), Portland Airline Consortium (PAC), airport tenants, airline personnel, general public, and other crafts.