This is one of Harry Harrison's marvelous early stories that were published in Galaxy Magazine. The Repairman (1958) is well written and a fun SF story of a man getting a job done when the situation seems stacked against him. As his boss tells him when he tries to wriggle out of working on this latest assignment тАЬAccording to this document, you canтАЩt quit. Ever. Therefore I have a little job I know youтАЩll enjoy. Repair job. The Centauri beacon has shut down. ItтАЩs a Mark III beacon....тАЭ
тАЬWhat kind of beacon?тАЭ I asked him. I have repaired hyperspace beacons from one arm of the Galaxy to the other and was sure I had worked on every type or model made. But I had never heard of this kind.
тАЬMark III,тАЭ the Old Man repeated, practically chortling. тАЬI never heard of it either until Records dug up the specs. They found them buried in the back of their oldest warehouse. This was the earliest type of beacon ever builtтАФby Earth, no less. Considering its location on one of the Proxima Centauri planets, it might very well be the first beacon.тАЭ
Thus begins an exciting story of a man in the distant future with the frustrating but rewarding job of fixing big problems all over the galaxy. His ingenuity and ability to think out of the box enable him, usually with chewing gum, a piece of string and his ingenuity, to 'fix' almost anything.