How to properly remove the loose screws

How to properly complete the loosening and unloading of the screws is also a problem for the inexperienced operator.

1 Loosen the cylinder head screws: First, loosen and unload the screws on average, and then loosely release them. This is to avoid the pressure of the gas in some cylinders, and finally there are one or two screws that are not loosened.

2 Loosen the rust screw: Firstly, use a suitable wrench to increase the force of the force bar and increase the unloading force: you can also take the reverse screwing (twisting in the tightening direction), and then carry out the positive unloading after loosening. If you can't do it anymore, you can use the debut "shock" or use a blowtorch to warm the screw before loosening it; you can also use a hammer to knock around the nut.

3 Loosen screw loosening: The bolt of this screw is fastened with more than two objects. Therefore, the method of loosening the screw is as follows: one is to be unscrewed with the crowbar outward; the second is to remove the nut or the square of the screw or saw it off and then take it out.

4 抨 button screw removal: This type of screw refers to the nut and the screw 抨 buckle. Loosen this kind of screw, as long as the nut is cut into two halves, it can be taken out.

5 fold broken rod screw removal: This can be determined according to the situation, if the broken position is still a plane above the distance, you can use the pipe wrench to pull out. It is also possible to reduce the screw into a square shape and use a live wrench to screw it out. You can also use the deeds to clear out. If the screw break position is lower than the plane, a special tool (decap screw remover) is required for removal.

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