Startup method of generator set:

1. Waterless start-up or sudden boiling water start-up

If a diesel generator is started without coolant, the components such as the cylinder assembly, cylinder head, and engine block will rapidly increase in temperature. Adding coolant at this point can cause the hot cylinder sleeve and cylinder head to crack or deform upon sudden cooling. However, adding boiling water (around 100℃) to the cold engine body before starting can also crack the cylinder head, engine block, and cylinder sleeve. It is recommended to add the coolant after the water temperature drops to 60-70℃.

2. High-torque Cold Start Trailer

Starting a diesel generator with a cold engine and high oil viscosity by force can exacerbate wear between the moving parts of the diesel engine, thereby reducing its service life.

3. Open flame roasted oil sump

High-heat spray-frying oil sump can easily cause local deformation of the oil sump or the deterioration of the engine oil inside. Therefore, the engine oil in the oil sump should be heated using a heater (or steam), while slowly rotating the oil shaft to ensure even heating of the oil, allowing lubrication to all parts.

4. Extended use of an electric heat plug or flame preheater

The heating elements of both electric heaters and flame preheaters are made of nichrome wire, which consume a significant amount of electricity and produce a large heat output. Prolonged use can damage the battery due to rapid discharge and also burn out the nichrome wire. Therefore, the electric heater should not be used continuously for more than 1 minute each time, and the flame preheater should be limited to 30 seconds of continuous use per session.

5. Directly pour gasoline into the intake manifold

Gasoline has a lower ignition point than diesel and burns before diesel. Therefore, directly pouring gasoline into the intake manifold will cause the diesel generator to operate roughly and produce severe knocking, which may even lead to the engine reversing.

6. Overuse of YIMI

YIMI can effectively enhance the starting performance of diesel engines. It may cause abnormal damage to components such as the diesel engine cylinder assembly and cylinder head. Additionally, it can significantly reduce the service life of diesel generators.

Step on the gas.

Do not floor the throttle when starting the generator. Typically, placing the throttle at idle is sufficient. However, many people, in an attempt to speed up the start of a diesel generator, rapidly increase the throttle before or during the start-up process. The drawbacks of this approach are: 1) Wasting fuel. Excess diesel washes the cylinder walls, leading to increased wear due to poor lubrication between the piston, piston rings, and cylinder sleeves; the remaining oil in the oil pan dilutes the engine oil, reducing its lubricating effect; and excess diesel in the cylinders burning incompletely can cause carbon buildup. 2) After the diesel generator is started with a high throttle, the engine speed may rise quickly, which can cause significant damage to moving parts (increased wear or issues like scoring).

8. Do not switch to different engine oil and fuel according to the seasons.

During cold weather seasons, failing to promptly switch to low-viscosity engine oil and fuel can make it difficult for generators to start or even impossible. Even if a forced start is successful, it may cause unquantifiable damage to diesel generators.

9. Ignition at the intake manifold

If ignited at the intake manifold of a diesel generator, the ash and hard debris produced by combustion can be inhaled into the cylinder, easily causing incomplete closure of the intake and exhaust valves and scuffing of the cylinder walls.

10. Directly add engine oil to the cylinder

Adding engine oil to the cylinder can seal, increase pressure, and heat, facilitating the cold start of the generator, but the oil does not burn completely, leading to carbon buildup. This weakens the piston rings' elasticity and decreases the cylinder's sealing performance. Additionally, it accelerates the wear of the cylinder sleeve, causing a drop in the generator's power output, making starting more difficult. Therefore, engine oil should not be directly added to the cylinder.

11. Avoid continuous and prolonged startups

The starting motor on the diesel operates under low voltage and high current conditions, which can damage the battery over long-term use. Its continuous operating time should not exceed 10 seconds; if one attempt fails, restart after a 15-second interval.