Oil leak was a problem of transfer arm in spider mechanism in PROTOS cigarette making machine,the leaked oil would enter the negative pressure passage and pollute cigarette.

According to analyzing the concrete structure of the precise follow-up calipers grinder, this article brought forward a solution to solve this grinder detector oil leak question, and the effect is good in the preliminary use.

The paper objectively and fully expounds and analyses the oil leak problems and causes of the equipment on the new dry cement production line, and raised a solution by using grease.

Investigation of oil leakage of main shaft seal and its improvement for hydraulic turbine in Sangke Water Power Station;

The reason of 4.3m crop shear's latch cylinder oil leakage and countermeasure

Solutions of oil-leakage from the speed reducer in metallurgical enterprises;

Reason analysis and improving measures of common oil-leakage for locomotive gear box;

Causes analysis of oil leaking of the balance hydraulic cylinder used in high-speed wire rod mill and its countermeasures;

An accident of oil leaking in the nitrogen compressor is analyzed and solution to the accident put forward and better results achieved.

By analyzing the structure and principle of floating ring oil film seal system of the synthetic gas compressor,finds out the cause of seal oil leaking and takes corresponding treatment and control method

A preliminary analysis of reasons and preventive treatment of leakage of sealing covers(bigger oil seals) for DF_4 locomotive diesel engines;

Based on research of lube leakage of the vertical turbine principal axis,the leakage reason is analyzed.