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How to prevent oil leakage in sealing elements of a breaking hammer and the solution to it.
When oil leakage is found, we should first check whether there is anything wrong with the oil sealing area.
Situation No.1: there is nothing wrong with the sealing elements:
1. Oil spills when it’s in low pressure, but doesn’t when in high pressure.
Reason: not enough roughness on surface of equipment.
Solution: improve the surface roughness up to 3.2~6.3 μm ry; or adopt seals that are of relatively lower rigidity.
2. Oil ring in the rod grows bigger, and oil spills during travelling.
Reason: edge of dust seal scrapes oil slick;
Solution: Replace the module of dust seal
3. Oil spills when it’s of low temperature, but doesn’t when of high temperature.
Reason: 1. eccentricity is too large; 2. material of seals is not suitable.
Solution: adopt cold-resistant seals