Analysis of the Diesel Generator Lubrication System Maintenance

Nov. 23, 2021

The normal operation of diesel generator lubrication system directly affects the reliability, economy and service life of diesel engine.  

Lubrication system function of diesel generator set  

1. Lubrication function: lubricate the surface of moving parts, reduce friction resistance and wear, reduce engine power consumption.  

2, cleaning effect: oil in the lubrication system continuous circulation, clean the friction surface, remove debris and other debris.  

Analysis diesel generator lubrication system maintenance and maintenance  

3, cooling effect: lubricating oil in the lubrication system continuous circulation, but also can take away the heat generated by friction, play a cooling role.  

4. Sealing effect: a layer of oil film is formed in the center of the moving parts to improve the sealing performance and prevent the leakage of air and oil.  

5, anti-corrosion effect: forming a layer of oil film on the surface of parts, to protect the surface of parts, prevent the corrosion of embroidery.  

6, hydraulic function: lubricating oil can also be used as hydraulic oil.  

7, damping and buffering effect: forming a layer of oil film on the surface of the moving parts, play the role of absorbing shock and reducing vibration, play the role of damping and buffering.  

Diesel engine set maintenance manual and industry operation rules have clear provisions for operators, but for each diesel generator set in practical application, it needs to be adjusted according to the actual situation.  Therefore, the following problems should be paid attention to when maintaining and operating a diesel generator set:  

 

In the process of work will certainly be damaged by impurities and metal parts in the air, at the same time, high temperature oxidation and erosion of gasoline vapor discharge, oil dirty, process performance significantly deteriorated, so do regularly, need to change oil. For maintenance personnel, you need to ensure the quality of the fuel, that is, the viscosity of the fuel that meets the requirements of the label, reasonable, clean, free of impurities, filtered deposition.  

Key indicators include cetane number, viscosity, freezing point, ash and impurities, and actual gum quality.  Incorrect fuel label selection (freezing point offset) can cause temporary blockage of filters, fuel pumps, fuel supply systems, etc. Large amounts of residual carbon, ash, actual colloid, water, moisture and other particles can shorten the fuel supply system filter replacement cycle and cause fuel supply system filter failure. The most common phenomenon is a sharp drop in unit frequency with light or heavy load at no or light load.  


 Analysis of the Diesel Generator Lubrication System Maintenance


In this regard, if the filter element is not replaced for a long time, the high-pressure oil supply loop and injector will be blocked and prematurely worn, and the service life of the unit will be significantly shortened, which is more difficult. Used for troubleshooting. This must be ruled out by an expert.  Therefore, under normal circumstances, the fuel added to the unit should be precipitated and filtered to ensure that the fuel is clean.  

Engine lubrication system maintenance  

As we all know, when it comes to unit lubrication, unit lubrication system is very important.  Otherwise, it will not only affect the normal operation of the unit, but also affect the parts of the unit, or scrap.  Generally speaking, the lubrication system has five functions.

(1) Lubrication film is used to separate the friction surface of parts to reduce wear and power consumption.  

(2) The flowing lubricant takes away the heat generated by the friction surface and cools the surface of the friction point.  

(3) Flowing lubricant cleans the friction surface, removes worn metal debris and dirt, and reduces component wear.  

(4) Lubricating oil should be added between the cylinder liner and the piston and piston ring to help seal and facilitate sealing and starting.  

(5) The surface of the machine parts is coated with a layer of lubricating oil to prevent surface oxidation and corrosion.  Therefore, in addition to the selection of high quality lubricating oil, its main performance indicators also include viscosity, kinemative viscosity ratio, freezing point, flash point, acid value, etc..  Lubrication system maintenance should be completed regularly as required.  Details mainly include oil level inspection, oil pressure inspection and adjustment, oil temperature (82-107 degrees) inspection, filter replacement, filter cleaning, sealing oil pump, etc.  


Dingbo has a wild range of diesel generators:Volvo / Weichai/Shangcai/Ricardo/Perkins and so on,if you need pls call us :008613481024441 or email us :dingbo@dieselgeneratortech.com


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