The Importance of Timely Replacement of Engine Oil in Excavators

Failure to replace the engine oil in excavators on time is equivalent to slow and gradual self-destruction of the machine. As we know, the primary functions of engine oil are lubrication and cleaning. Failure to change the oil on schedule can have numerous harmful consequences.

What are the severe consequences of not changing the engine oil on time?

1. Low or High Oil Pressure:

• Low Oil Pressure: The direct consequence of low oil pressure is friction between various cooperating components, leading to noticeable engine noise and, in severe cases, bearing burnout. Failure to change the oil on time can result in low oil pressure due to factors such as insufficient oil storage, dirty or viscous oil, and oil leakage from friction clearances.
• High Oil Pressure: Excessive oil pressure can cause premature damage to the fuel filter, leading to issues such as carbon buildup in the engine cylinders. This also shortens the engine's lifespan. Factors leading to high oil pressure include high oil viscosity (e.g., not changing from winter to summer oil on time) and oil deterioration causing reduced oil flow.

3. Accumulation of Sludge:

   Neglecting timely oil changes can result in an excessive accumulation of sludge. Sludge is typically formed when high-pressure unburned gases, acids, moisture, sulfur, and nitrogen oxides from the combustion chamber enter the engine oil through the clearance between the piston rings and the cylinder wall. This mixture combines with metal particles from component wear, gradually accumulating and forming sludge. Failing to change the oil on time increases sludge formation, leading to clogs in filters and oil passages, causing lubrication difficulties and exacerbating engine wear.

4. Component Wear:

• Without timely oil changes, the most severe consequence is the wear of various mechanical components of the engine, such as pistons and cylinders. Insufficient oil, excessive sludge, and decreased oil performance can result in severe wear and tear on the cylinder and piston. If the oil is not changed on time, these problems are likely to occur, emphasizing the necessity of timely oil changes.

4. Elevated Water Temperature:

• Neglecting timely oil changes can cause the water temperature to rise. As mentioned earlier, insufficient oil due to low oil storage leads to semi-dry or dry friction between engine components, generating significant heat. Elevated water temperature can cause cylinder head and block deformation or damage. If such faults occur, major engine repairs are inevitable.

In conclusion, timely oil changes are crucial. Failure to do so can accelerate component wear, affect the service life of the machine, and even lead to major repairs. Moreover, sudden issues such as cylinder pulling during operation can result in safety accidents. Therefore, regularly checking engine oil and replacing it on time is of utmost importance.