The morning of February 3, Qinghe Oil Production Plant of Jianghan Oilfield Division processing machine repair shop affords a small river is operating drilling. When he finished the hole drilled to the workpiece, the coolant off the power switch when the switch is found faulty, they hired the electrician Hu Hai. Hu Hai open distribution box and found the power switch on the corrosion of a screw shape. He then remove the switch, you can cannibalize Fengyun screws because when severe corrosion, Fengyun screw off.



How this can be done? Screw can not take no rust repair coolant power switch, the switch on the scrapped. How to remove rust screws can do this? Hu screenwriters. Hu looked like a daze, a workshop comrades jokingly said: "Hu said, the screw head can you rust 'rust', ah, led to a new power switch does not have to put on." Hu said with a smile: "need for a new switch, $ 180, if you remove the screws rust, you can save it as a unit cost of $ 180."



Joking, the Hu had an idea, suddenly had an idea, yes, you can twist the nut off the two screws on the back together, slowly with a wrench to unscrew the screws. Think of this, he immediately, in his "treasure chest" where to find two suitable nut, tighten the screw, the screw is really taken out of the rust. See all of this, the workshop comrades said with emotion: "You can, ah, let's take out a screw on the unit to save $ 180, really amazing!"