15 minutes emergency repair

At 18:40 on July 14, in the quiet mountain of Mulao people's life in Guangxi, the roar of railway tamping truck suddenly sounded. "Director Luo, the sky ahead is all dark, you speed up and come back quickly!" Liang Dahai, commander of tamping truck in the cleaning workshop of Liuzhou Public Works Machinery section, was inspecting the car. When he looked up, he saw a big dark cloud not far away, and he called out anxiously with his walkie talkie. Luo Fugao, director of the screening workshop, took a look at the sky and immediately informed everyone to speed up the construction.
In order to repair the damaged line caused by flood as soon as possible, the Party branch of the cleaning workshop in this section set up a party member commando, led by the veteran party member Luo Fugao, to operate the large machine tamping vehicle in the section from Guzhai to zhailong on the Jiaozhou Liuzhou railway. As the time for the "skylight" repair is only three hours, they have to race against the clock to finish.
In just a few minutes, dark clouds quickly blocked the whole sky, and thunder continued to explode in the mountains. "There's no problem with fixing Homework finished Stop the car Luo Fu Gao's voice came from the walkie talkie. The construction personnel immediately gathered to the tamping truck to collect the vehicle. However, before everyone's reaction, it has been a torrential rain.
"Director Luo, the car doesn't respond, so it can't be collected!" The repair of the "skylight" will be finished in 15 minutes. When the rainstorm comes, the big machine tamping truck will fail at this time. If it can't return in time, it will affect the transportation of the whole line. Liang Haihai is sweating.
"It must be that one of the electronic components of the satellite car has been short circuited by the rain." Luo Fugao concluded with rich field experience. Before he had time to think about it, he put on his kit and rushed into the rain. Can not stand firm in the rain, his hat was knocked over by the wind and rain, the whole body instantly wet.
Time waits for no one! Luo Fugao tried to open his eyes in the rainstorm, firmly grasped the handrail of the tamping machine, and approached the fault point under the vehicle step by step. The bright electronic components and lights were surrounded by hundreds of small flying insects, which made him shiver in his heart. However, he wiped all the flying insects with a wave of his hand, wiped the electronic components with his sleeve and fastened them with tools.
The tamping machine recovered for a while and failed again. There are still 8 minutes to the end of the "skylight"!
Luo Fugao's mind is constantly thinking about various repair plans. All of a sudden, he patted his trouser pocket and quickly took out a plastic bag from his pocket, which was tightly wrapped with some spare parts. This is what he prepared before his homework just in case, and now it comes in handy.
"Director Luo, the car is moving. Get in the car!" While Luo Fugao quickly replaced the spare parts, Liang Dahai's joyful voice came from the car. The team-mates reached out their hands and pulled the soaked Rover into the car. At 19:28, facing the fierce storm, the tamping truck returned to Guzhai station 2 minutes in advance.