Control processing quality hydraulic parts to prevent leakage from occurring

Control processing quality hydraulic fittings to prevent leakage from occurring.
(1) The difference between the cylinder hydraulic cylinder manufacturing quality, the new fuel tank leakage occurs, such as when machining the cylinder bore barrel (card keyway) chamfered keyway in card processing chamfers on both sides of the hole does not comply with the provisions of the drawings and greater than 20 °, when assembling the cylinder, first two holes on the piston seals caused by internal leakage cards injury, followed by the guide sleeve in the assembly, put the outer diameter of the O-ring seal fixed cut off one piece fitting or half ring, which gives the oil spill in the use of buried hidden dangers. When installed on a system device has some backpressure over a period of time the oil temperature reaches 50-60 ℃, it began to leak from the front cylinder.
(2) when the piston rod end chamfering, such as using the conventional 45 ° chamfer, guide sleeve mounted to the cylinder will make the O-ring card is broken. The use of 20 °, in the assembly will not be cut O-ring, which is the main measures to prevent leakage of hydraulic components.