Causes and treatment methods for oil leakage from construction machinery - News - Global IC Trade Starts Here.

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After long-term use, the sealing material will wear out too much, aging and deterioration, deformation failure; excessive addition of lubricating oil or oil does not match; flexural deformation of parts and components, damage to the shell, etc. are all causes of leakage of engineering machinery. To specifically explore the specific causes of oil spills and how to deal with oil spills. The main cause of oil leakage

The material or process of the parts and components is not good, the structural design has problems; the assembly process is improper, such as the surface is not clean, the gasket is damaged and the displacement; the tightening force of the fastening nut is uneven or the looseness is loose, which causes the mechanical parts to work; After long-term use, the sealing material will wear out too much, aging and deterioration, deformation failure; excessive addition of lubricating oil or oil does not match; flexural deformation of parts and components, damage to the shell, causing oil to seep out; vent plug, one-way valve After the plug, due to the pressure difference between the inside and outside of the casing, the oil leaks in the weak seal.

1. Install the gasket correctly. The gasket between the parts functions as a leak-proof seal. If the material, the quality of the production and the installation do not meet the technical specifications, it may cause oil leakage.

2. Tighten the nut correctly. If it is too loose, it will cause leakage without pressing the gasket. If it is too tight, the metal around the screw hole will be convex, or the thread will be slipped to cause oil leakage.

7, to avoid the wheel hub oil. Excessive grease in the hub bearing and the cavity, or its oil package mismatch and aging failure, as well as excessive temperature of the hub caused by frequent braking, loose axle nuts, etc., can cause the hub to simmer. Therefore, assembly should be carried out in accordance with the process specifications.

4. Replace worn parts in time. Excessive use of parts (such as pistons and cylinders) can cause excessive wear and tear, causing high-pressure gas in the combustion chamber to break into the crankcase, forcing the oil to leak.

5, to avoid the check valve, vent valve blocked. If the check valve and vent valve are blocked. It will cause the temperature inside the casing to rise, the oil and gas fill the entire space, increase the pressure inside the casing, increase the resistance of the piston, and increase the fuel consumption. At the same time, due to the pressure difference between the inside and outside of the casing, the seal is often weak. Oil spill.

6, to ensure the sealing of various types of oil pipe joints. Due to the frequent disassembly and assembly of the connecting pipe nut for construction machinery, it is easy to loosen due to the broken wire of the sliding wire. For example, the accuracy of the two-connecting bell mouth is poor, the center line of the two cones is not coincident or the taper is different, which may cause oil leakage. The taper seal can be repaired by grinding to make the nut compact and seal reliably.

3. Replace the failed oil seal in time. Many parts of the oil seal on the construction machinery will be improperly installed, causing the journal and the oil seal edge to be different. Some oil seals lose their elasticity due to aging of rubber after they have been used for a long time.