Retrieving Technical Parameters of Cummins Generators Without Nameplates

Diesel generator sets are widely used in industrial, agricultural, military, remote mountainous and other fields in today's social development. Due to their long elimination cycle, many generators have been in use for more than 20 years, and many are dilapidated with nameplates falling off and unable to be retrieved. However, the technical parameters marked on the nameplate are crucial for the future maintenance of the entire generator.

A generator's nameplate marks important information such as its model, product standards, weight, production date, power, and part numbers. Since Cummins generators have a high market share, we will take Cummins as an example to explain how to retrieve technical parameters when there is no nameplate.

Every diesel engine has a nameplate, which is fixed on the side of the gear chamber. Based on this nameplate, we can have a preliminary understanding of the model. Taking the Cummins diesel engine model 6BTA5.9 as an example, the main contents of the nameplate are as follows: ①Manufacturing date: 8-digit number, with the first 4 digits for the year, the middle 2 digits for the month, and the last 2 digits for the day. For example: September 9, 1989, is printed as 19890909. ②Displacement: 5.9L. ③Model: 6BT. ④Injection timing: 3.25mm (or angle). ⑤Firing order: 1-5-3-6-2-4. ⑥Valve cold clearance: intake valve 0.25mm; exhaust valve 0.50mm. ⑦Rated power: 117.6kW. ⑧Rated speed: 2600r/min. ⑨Series number: B series. ⑩Fuel injector part number: 3909533. ⑪Diesel engine number: 6-digit number, with the first unit printed as 000001.

If the nameplate is lost and relevant nameplate information cannot be seen, and we want to know the production date of the generator, we first need to understand when the machine was updated, that is, when the new model was launched. For example, from the 1970s to the end of the 1980s, the fault display of the Cummins generator control panel was displayed by twelve vertical lights. From 1990 to 1996, it was changed to seven lights. From 1996 to 2000, all were controlled by computers. So now we call them 12-light machines, 7-light machines, and computer-controlled machines respectively.

To visually determine the power of a generator requires many years of industry experience, which is generally difficult for ordinary laymen to do by intuition or visual observation. However, there is a relatively accurate measurement method, which is to judge the power by measuring the length of the generator stator.

The part number of the generator is the most important basis for finding the same number of parts when the generator needs maintenance. When the nameplate is missing and cannot be found, there is a set of numbers on the engine body. Based on that set of numbers, you can check where the generator was produced, the production time and the part number through the professional inquiry system of Cummins. When this data cannot be verified on the Internet, there is another method, which is to remove the damaged parts of the generator set, and the parts have corresponding codes inside.

Guangxi Dingbo Generator Set Manufacturing Co.,Ltd. was founded in 1974 and is one of the earliest manufacturers of generators and diesel generator sets in China. If you want get more information, please feel free to send email to [email protected] we will pay highly attention on your question.