How to determine whether the lubricating oil of CWU125-31.5-IF worm gear reducer needs to be replaced

To determine whether the lubricating oil of the CWU125-31.5-IF worm gear reducer needs to be replaced, you can refer to the following methods:

• Appearance inspection method : Open the oil pan of the reducer and observe the color and transparency of the lubricant. Under normal circumstances, the lubricant should appear transparent or slightly yellow. If the lubricant is cloudy, black or has obvious impurities, it means that the lubricant has been contaminated and needs to be replaced.

• Viscosity testing method : Viscosity is one of the important performance indicators of lubricating oil. If the reducer has abnormal noise, high temperature rise or reduced working efficiency during operation, the viscosity tester can be used to measure the viscosity of the lubricant oil. If the viscosity exceeds the range specified by the reducer lubricant of this model, a new lubricant needs to be replaced.

• Acid value test method : During use, lubricating oil will oxidize with oxygen in the air, producing acidic substances. The acid value of the lubricant is measured by an acid value tester. If the acid value exceeds the specified range, it means that the lubricant has aging and needs to be replaced.

• Wear particle detection method : When the reducer is running, metal particles will be generated due to friction and wear, which will contaminate the lubricant and accelerate the wear of the reducer. The metal particles content in the lubricant is detected by a wear particle detector. If the particle content exceeds the specified range, it means that the lubricant has lost its protective effect on the machine and needs to be replaced.

• Antioxidant performance detection method : lubricating oil will lose its original performance due to oxidation during long-term use, resulting in a decrease in lubricating effect. Test the oxidation stability of the lubricant through an antioxidant performance detector. If the oxidation stability is poor, it means that the lubricant has aging and needs to be replaced.