Fuel Supply Adjustment of Cummins Diesel Generator

If the fuel supply of each cylinder of Cummins diesel generator is uneven, it will directly affect the stability of the engine. You can remove the fuel injection pump and check and adjust it on the test bench. However, if there is no test bench for diesel generator and you need to check the uneven fuel supply, you can also roughly check the fuel supply of the suspected cylinder, and check and adjust the method:

1. Prepare two glass measuring cylinders for use. If you cannot find the measuring cylinder at the moment, you can also use two identical small bottles instead.

2. Remove the high-pressure fuel pipe connector that connects the first cylinder with an excessive (or insufficient) fuel supply to the fuel injector.

3. Remove the high-pressure pipe joint connecting the normal fuel supply cylinder and the fuel injector.

4. Insert the two fuel pipe ends into two measuring cylinders (or vials) respectively.

5. Rotate the engine with the starter to pump fuel from the fuel injection pump.

6. When there is some diesel in the equivalent cylinder (or small bottle), place the measuring cylinder on a horizontal table to compare the amount of fuel and determine whether the fuel supply is too large or too small. If a small bottle is used instead, it can be weighed and compared. The relative position of the fork (or ring gear) on the fuel injection pump fuel adjustment rod (i.e. the gear rod) can be adjusted by changing it.

During the operation of Cummins diesel generator, according to experience, the following points should be paid special attention:

1. Loosen the fixing screws of the fork (or gear ring, or flange sleeve), and the fuel supply can be changed by moving it slightly. Do not move it too much, otherwise it will be difficult to adjust accurately.

2. After each adjustment, confirm the tightening degree of the fixing screws.

3. When adjusting the fuel supply, it should be ensured that the fuel supply does not exceed the standard fuel supply, as the adjustment is carried out at low speeds, taking into account the impact of various factors such as fuel leakage. At this point, a significant degree of unevenness (30%) is allowed, but at high speeds, it is affected by factors such as throttling, resulting in a smaller degree of unevenness (3%). If the fuel quantity at low speeds is higher than the standard fuel supply quantity, there may be significant changes in the high-speed fuel quantity, even exceeding the rated fuel supply quantity.

4. If there is a significant difference between the large and small fuel supply on the same engine, do not adjust in a hurry. You can first adjust and install the outlet valves of the two pumps for inspection and comparison. Sometimes, this can also change the fuel supply. If the fuel supply is not changed after the adjustment, the two pumps need to be adjusted one by one.

5. Use the Comparative law to adjust the fuel supply, and operate carefully.

The above is the introduction of Dingbo Power to the fuel supply adjustment method of Cummins diesel generator set. We hope it will be helpful to everyone. If you would to know more about diesel generator, please contact us by email: dingbo@dieselgeneratortech.com.

Diesel Generator Power Ratings: Standby vs Prime vs Continuous

Diesel generator sets are commonly used in a variety of sectors due to their dependable performance and high efficiency. They can be used for emergency power supply in the event of a power cut or used in places without connection to a power grid. When selecting a diesel generator for your home or business, you need to consider many factors, such as generator’s ratings. In this article, we’ll explain the three basic rating types - standby, prime, and continuous in diesel generators. ISO-8528-1:2018 defines basic generator set rating categories based on four operational categories: Emergency Standby Power (ESP), Prime Power (PRP), Continuous Power (COP) and Limited-Time Running Prime (LTP). Read on and learn the application of power ratings for engines used in generating sets. Standby Power Rating Standby Power(ESP) is used to supply emergency power when the external power supply is interrupted, such as power outages. Standby power rated generators can supply reliable electricity as t...

How to Choose a Household Mini Generator

With the improvement of people's living standards, there are more and more household appliances, such as rice cookers, microwaves, kettles, refrigerators, air - conditioners, washing machines, etc. It can be said that every household has them. But what if there is a power outage? These appliances won't work properly, and our lives will be greatly disrupted. How can we avoid this? We can use household mini - generators to provide convenience in power consumption. So, how to choose a good household mini - generator? Consider the noise level Since it is for household use, when choosing a household mini - generator, we need to check whether the noise will affect the neighbors. Generally, the seller will demonstrate the performance of the generator in advance. A good household generator can reduce noise by about 80%. Choose a generator with a moderate price Due to different brands, there are significant differences in power, and consequently, the price differences of househ...

How to Choose Efficient Diesel Generators for the Film and Television Industry?

In the film and television industry, the stability of the electricity supply during filming is crucial. Whether the equipment are the cameras or the lighting equipment on the filming site, or the post-production equipment, they all need stable and reliable power support. Unstable or interrupted power can result in interrupted filming, damage to equipment, and even affecting the progress and quality of the entire project. Therefore, investing in high-efficiency diesel generator sets has become an important measure for the film and television industry to ensure the reliable power supply for shooting. Determine the power requirements Before choosing a diesel generator set for the film and television industry, it’s necessary to figure out the total power needs, including the electricity demand of the shooting location, the total power of the electrical equipment and the time of using electricity. Also consider whether there are special needs for the generators such as low noise level and...

Diesel Generator Tech

Search This Blog