Teknik Pengambilan Sampel
Oil Condition Monitoring

Mechanical Oil Sampling Techniques

Created By: Hyprowira | Published Date: 03 July 2017 | Last Modified: 31 July 2019

One way of initial inspection on the machine is to periodically perform engine oil samples. The purpose of taking oil samples on the machine is for further analysis. The analysis is carried out in a special laboratory. From the results of sample analysis of engine oil, it can be seen the prediction of damage to a machine.

In addition, engine oil sample analysis also helps to predict engine wear rates, predicts the treatment that must be done first, and determines engine priority. In essence, engine oil sample analysis through SOS is done to prevent more severe damage and the effectiveness of repairs on the engine.

Then, how do you take safe and correct engine oil samples? First prepare the equipment to take engine oil samples. The equipment includes vacuum pumps and bottles. Make sure the vacuum pump and bottle are clean and dry. In order for engine oil sampling to be in accordance with the standard, the bottle used must be correct.

Bottles for Samples

The bottle must comply with ISO 3722 standards. In accordance with ISO standards, the bottle must be made of PET or HDPE plastic bottles. In addition, the bottle must be in accordance with its type, which is clean, super clean, and ultra clean. The use of bottles that comply with ISO 3722 standards is very important.

Clean and strong plastic bottles make it easier for you to observe the engine oil samples taken. Because it's easy to observe, you can also easily compare oil from one engine with oil from another engine. One that interferes with engine oil sampling is contaminants. Therefore if the bottle looks clear, even small contaminants can be seen.

You also need to know that you should not use used bottles of engine oil sampling beforehand. You must use a bottle that is completely new, clean and dry. For self-filling, you can fill the bottle as much as 3/4 of the total volume of the bottle, 2/3 of the total volume of the bottle, or ½ of the volume of the bottle. Don't forget to complete the bottle where the engine oil sampling is complete with data.

The data includes, location of engine oil sampling, date of sampling, time of sampling, type of equipment taken by oil samples, and type of oil used. Do not forget to also include the last time the engine oil change.

Sampling Technique

Most importantly, you also need to understand the correct engine oil sampling technique. For example, temperature must be considered so that engine oil samples are accurate. Therefore, try to take engine oil samples at the temperature when the engine is working. Temparatur is not the only technique that must be considered when taking engine oil samples. The cleanliness of the equipment is also important to get accurate samples. Therefore make sure the equipment is clean and new.

It is not recommended to use the same equipment unless it has been rinsed clean and dry. Take the engine oil sample in the right place. Don't sample engine oil in the exhaust line, filter, and return lines. Of course, you must include the correct information on the engine oil sample bottle label in accordance with the information described above. Later, engine oil sample analysis is emphasized on the elements, namely measurement of metal particle wear, oil conditions, and engine physical analysis. After the analysis results are obtained then follow-up can be determined on the machine.