Hammer seal leakage and prevention measures

1 when the oil pressure in the low pressure without leakage , causes mounting surface roughness difference ----- improve the surface roughness 3.2 ~ 6.3umry point with low hardness seals
2 larger piston oil ring , each one will be a few drops of oil stroke , causes the dust seal lip scraped film replacement wiper ring patterns.
3 at low temperatures, high temperatures do not leak oil , there are two causes one is too eccentric kind is inappropriate choice of seal materials , selection of cold seals can solve the problem .
The second category seals are not normal circumstances .
1 main oil seal surface hardening , the sliding surface cracks ; reason ----- abnormal high pressure is too high.
2 main oil seal surface hardening , the entire seal security seals broken , broken ; reason ---- hydraulic oil deterioration oil abnormally elevated ozone damage resulting from leaking seals .
3 main oil seal wear like a mirror-like surface smooth ; reason ---- Micro tiny stroke era pressure is too high .
4 main oil seal surface of the mirror uneven wear seals have swelling phenomena ; reason ---- eccentric side pressure is too large too large, use of improper oil and cleaning fluid.
5 main oil seal sliding surface for damage and wear scar ; reason ---- plating is poor, there is rust tie rod surface roughness improper selection of materials containing impurities.
6 top of the main oil seal lip scar rupture indentation ; reason ---- chamfer improper assembly , installation, improper storage methods .
7 main oil seal sliding surface indentation ; reasons ---- possession of foreign debris.
8 main oil seal lip cracks cracks ; reason ---- oil improperly, high or low temperature , high speed is too high back pressure , pulse pressure is frequently too large .
9 There are carbonized charred main oil printed cable ties  deterioration ; reason ---- residues generated adiabatic compression of air .
10 main oil seal extrusion heel cracks ; reason ---- pressure, extrusion gap is too large , as when using the support ring installation groove design is unreasonable.