1. Master and identify the basic knowledge of counterfeit and inferior products, and choose high-quality and standard oil seals.

2. During installation, if the outer surface roughness of the shaft diameter is low or there are defects such as rust, rust, burrs, etc., it should be polished smooth with a fine sandcloth or oilstone; Apply clean engine oil or lubricating grease to the corresponding position of the oil seal lip or shaft diameter. Apply sealant to the outer ring of the oil seal, wrap the keyway area on the shaft with hard paper to avoid scratching the oil seal lip. Use a special tool to rotate the oil seal inward and press it in. Do not forcefully hit or punch it to prevent the oil seal from deforming or breaking the spring and causing it to fail; If there is lip flange, spring detachment, and oil seal deviation, it must be removed and reinstalled. It should be noted that when the shaft diameter is not worn and the oil seal spring has sufficient elasticity, do not tighten the inner spring without authorization.

3. When oil seals used in machinery have harsh working conditions, large environmental temperature differences, high dust content, and frequent machine vibration that constantly changes the stress conditions of the components, frequent inspection, maintenance, and upkeep are necessary.

4. If the shaft diameter and bearings are severely worn; Oil seal rubber aging or spring failure should be repaired and corresponding components replaced in a timely manner.

5. Timely troubleshooting should be carried out for components or assemblies that generate abnormal heat; Avoid mechanical overspeed and overload operation to prevent oil seal lip temperature increase, rubber aging, early lip wear, etc.

6. Regularly check the oil level. If there are too many impurities in the oil, such as alloy powder or metal filings, it is necessary to thoroughly replace the oil with a new one. The brand and quality of the replaced oil should meet the seasonal requirements. It is recommended to add Metre Super Sealant&Lubricant to the engine oil. It is an excellent gearbox additive that can form an inert material film on the components. It can slow down the leakage of oil seals, extend the service life of oil sealed gears, and also reduce the noise of the gearbox. The use of this Metre Super Sealant lubricant will not pollute or deteriorate the oil.

Instructions for use:

① When the lubricating oil volume of the gearbox is ≤ 7 liters, the amount of lubricating oil added per liter is 20-30ml;

② At 7-15 liters, the amount added is 15-20ml per liter of lubricating oil;

③ When it is greater than 15 liters, the amount added is 10ml per liter of lubricating oil;

7. Temporarily unused oil seals should be properly stored to prevent contamination with oil, dust, or sunlight.

8. When the shaft diameter is worn into a "V" shaped groove, causing a decrease in the contact pressure between the new oil seal lip and the shaft, which cannot seal the oil, displacement can be used to compensate.

Dongheng Sealing Oil Seal