Air compressor parts cracks common reasons are:
(A) the cylinder head cooling water in the body, in the winter, turn on the water after stopping no time to freeze;

(2) As Casting internal stress generated in the use of vibration gradually expanded significantly;

(3) caused due to mechanical accident, such as broken piston, connecting rod screws break, causing rod broken off, or the balance of the crankshaft or gas, iron fly cutting body broke off the top of the bad parts in the cylinder top.

For cracks after inspection and maintenance methods are:

     (A) penetration of kerosene law: the inspection process is to use cotton waste soaked in kerosene to wipe the body, cylinder head, then dry rubbed cotton head Jiang kerosene cracks where possible, and immediately on the white figure in these areas at this time where there is crack, it will penetrate into the white kerosene, and the location and length of the crack clearly displayed.

     (2) pressure method: pressure method is used to improve the cooling water pressure way to check the crack area. Check the water pressure in the specialized equipment on a water pressure test carried out. Poor environmental conditions in the equipment of enterprises, some with normal hand pressure pump restructuring simple equipment can also be checked. That is, first the body or cylinder head trying to block the pipe joints, pipe joints only the one with the pump outlet with a hose connected to the body size of the plane should be used rather special cover, so that the cooling water does not spill. Then turn on the switch pressure pneumatic pump, water enters the chamber cooling water jacket. Subject to switch the switch to turn off the water and then continue pressing a pump, the pressure gauge pointer up to 3-4 atm to stop the water supply. In this case, by looking at the body, both inside and outside the cylinder head for any leakage or seepage under the phenomenon, you can determine whether the presence of the crack.