7 robotic mechanisms comprised of electric motors, rotary gears, linkages, bearings, electric actuators, electronic sensors, servo-motors, electronic speed controllers, electronic encoders, cameras, digital signal input/output controllers, batteries, cutting tools, rotary tools, gripping tools, structural frames, and wheels for maintaining and repairing electric power transmission and distribution lines and guy wires; robotic mechanisms comprised of electric motors, rotary gears, linkages, bearings, electric actuators, electronic sensors, servo-motors, electronic speed controllers, electronic encoders, cameras, digital signal input/output controllers, batteries, cutting tools, rotary tools, gripping tools, structural frames, and wheels for installing and replacing compression fittings, spacers, vibration dampeners, current sensors, voltage sensors, and atmospheric sensors on electric power transmission and distribution lines and guy wires; robotic mechanisms comprised of electric motors, rotary gears, linkages, bearings, electric actuators, electronic sensors, servo-motors, electronic speed controllers, electronic encoders, cameras, digital signal input/output controllers, batteries, cutting tools, rotary tools, gripping tools, structural frames, and wheels for installing and replacing bird flight diverters on electric power transmission and distribution lines and guy wires