Longhong Machinery & Electric shares the fundamentals of diesel generator sets with you. Details are as follows:

As various technologies continue to evolve and advance, the following content is for reference only:

1. What are the six basic systems of a diesel generator set?  

   Answer: (1) Engine oil lubrication system; (2) Fuel system; 

                (3) Control and protection system; (4) Cooling and heat dissipation system; 

                (5) Exhaust system; (6) Starting system.

2. Why do we recommend that customers use the engine oil recommended by professional companies during our sales operations?  

   Answer: Engine oil is the lifeblood of the engine. If customers use unqualified oil, it may lead to severe accidents such as bearing seizure, 

                 gear damage, crankshaft deformation or fracture, and even complete engine failure. For specific details on engine oil selection 

                 and usage precautions, please refer to related articles in this section.

3. Why is it necessary to replace the engine oil and oil filter after a new generator has been in use for some time?  

   Answer: During the break-in period of a new generator, impurities may inevitably enter the oil pan, causing physical or 

                 chemical degradation of the engine oil and oil filter. Generator Professional Maintenance Network has dedicated 

                 personnel to perform related maintenance services for you.

4. Why do we require customers to install the exhaust pipe at a downward slope of 5-10 degrees when setting up the generator set?

   Answer: This is primarily to prevent rainwater from entering the exhaust pipe, which could lead to serious accidents.

5. What is the purpose of the manual fuel pump and air bleed bolt typically installed on diesel engines?  

   Answer: They are used to remove air from the fuel lines before starting the engine.

6. How are the automation levels of diesel generator sets classified?  

   Answer: Manual, auto-start, auto-start with automatic mains power transfer cabinet, 

                and remote three-remote control (telemetry, tele-signaling, and tele-control).

7. Why is the standard output voltage of generators 400V instead of 380V? 

   Answer: This is because voltage drop losses occur along the output lines.

8. Why must the operating site of a diesel generator set have good air circulation?  

   Answer: The output of a diesel engine is directly affected by the quantity and quality of the air it intakes, 

                and the generator requires sufficient air for cooling. Therefore, the operating site must have good air circulation.

9. Why should tools not be used to overtighten the oil filter, diesel filter, and water separator during installation? 

    Hand-tightening until no oil leakage occurs is sufficient.  

   Answer: Overtightening may cause the sealing rings to expand under the influence of oil immersion and rising engine temperature, 

                 generating significant stress. This can lead to damage to the filter or separator housing and, more severely, 

                 irreversible damage to the engine mounting nuts.

10. How to identify counterfeit or inferior domestically produced diesel engines?  

    Answer: First, check for the factory certificate and product documentation, which serve as the "identity proof" 

of the diesel engine and must be present. Then, verify the three major serial numbers in the documentation:  

    1) Nameplate serial number;  

    2) Engine block serial number;  

    3) Fuel pump nameplate serial number.  

    Cross-check these three serial numbers with the actual numbers on the diesel engine to ensure they match exactly. 

    If any discrepancies are found, report these serial numbers to the manufacturer for verification.

The above content is compiled and published by the generator manufacturer—Guangdong Longhong Power Machinery Equipment Co., Ltd. 

For more details, visit https://www.longhongpower.com.