??Xinhua Xu seals IMPORTANT NOTE

??Installation diameter with the gap Xinhua Xu seals (ie, concentricity), four weeks should be uniform, with a feeler points tolerance is not greater than 0.01 mm. Seal material does not allow too small or too large phenomenon requiring error 2.00 mm. Excessive increase face pressure to accelerate the wear face. Too small will cause less than the pressure seal and can not play a role.

??Xinhua Xu seal material as well as adaptability to the operating temperature, oil compatibility. May be tested to detect, Xinhua Xu seal quality is assured, lubrication Xinhua Xu seals, good materials and high surface roughness finer extended service life.

??Xinhua Xu seal mounted in a way to use a mounting sleeve or shim to protect the seals, in order to avoid lip rolled, twisted, causing the spring slide.

??Xinhua Xu seal sealing surface lubrication in good condition, to prevent dirt intrusion. Use achieve the required cleanliness level of the oil and the correct installation method is also necessary conditions.

??Before assembly to ensure that the piston (plunger small, medium and Bottom) thoroughly clean. Check burrs, rough or sharp edges, erosion point, plating defects.

??Xinhua Xu seals should match and make sure that all parts are clean, good condition, without aging, undercuts, indentations, scratches and other defects.

??Uniformly rubber portion Xinhua Xu piston seal groove and seal kit for lubrication.

??Xu Xinhua seals factory installed considered anti-extrusion ring to the piston on the piston rod end, do not try to open the ring over to "C" shape (in the axial direction of the ring ring opened, will put an end to the seal the gutter gently screwed into the rest of the trench, the rubber ring is properly positioned to ensure stepped groove).