Simple structure, things like blocking the indicator with a large filter element.

[Truck House Original]All along, the replacement and maintenance are mainly based on the form mileage and service time. With the change of bad environment, the filter element may be dirty in advance, so how can we judge whether the filter element needs to be replaced? In fact, we can also judge the condition of the filter element through the air filter blockage indicator.

● 　Air filter sensor lights alarm lamp to remind maintenance in time.

At present, many cars are equipped with air filter clogging sensors, which will light up the alarm lights on the dashboard in time to remind drivers to replace air filters in time.

For example, the switch is mainly composed of diaphragm, trigger bar, indicator light connector and so on, and its structure is very simple. It also greatly facilitates the maintenance of the air filter. But such a simple sensor is not equipped in many cars.

● 　Independent installation of air filter clogging indicator has great effect.

Of course, in addition to the sensor, there is also an independently installed filter plug indicator, whose working principle is to indicate the filter plug degree by using the negative pressure change in the air cleaner. When dust blocks most of the holes of the filter element and the filtering resistance of the filter element increases to a certain extent, the indicator will appear red.

Because some models do not have filter elements themselvesblock upIndicator, in order to facilitate vehicle maintenance, this filter is added to Jiefang J6 of forum card friend "The End of the Sea".block upIndicator.

Because at present, different filter elementsblock upThe indicator models are different, and its measuring range is also different. Relevant standards stipulate that the maximum air intake resistance of air filtration is 6-6.25kPa, that is to say, when the air intake resistance exceeds this value, air filtrationblock upThe indicator should display a red logo, so it is necessary to pay attention to whether the measurement range of the air filter clogging indicator is correct when purchasing.

● 　filter cartridgeblock upSensor installation position between filter element and intake pipe

filter cartridgeblock upThe indicator is installed between the air cleaner and the intake pipe. take for example
A filter element pollution indicator is installed behind the cab and connected to the air intake duct through a hose.

● 　filter cartridgeblock upThe use of indicator observation window maintenance needs to be adjusted.

When the filter elementblock upWhen the window on the indicator shows a red sign, it indicates that the paper filter element has been blocked by dust and dirt, and the air filter needs to be cleaned or replaced at this time. After replacing the air filter element, you need to press the button and readjust it.block upIndicator, make the filter elementblock upThe indicator window displays a sign indicating that the air filter element is working normally.

● 　filter cartridgeblock upThe two methods of indicator performance check are simple.

Check the filter elementblock upPerformance method of indicator: Remove filter element.block upIndicator, and then suck it with your mouth. If the red sign appears immediately, it means it works normally. Or put the filter elementblock upThe air inlet of the indicator is blocked, so that it can run at a medium speed. If a red sign appears, it means its performance is good.

● 　Conclusion:

Although the structure of the filter plug indicator is also very simple, if the vehicle is equipped with this indicator, it will undoubtedly be very convenient for users to maintain the air filter of the vehicle, but unfortunately, many cars are not equipped with this indicator. Of course, if you are interested, you can also buy and install it yourself. (Text/Figure Yang Jianwei)

● 　Related reading:

The basics of trucks are introduced about the air intake system.

http://www.360che.com/tech/140416/30652.html

Air pre-filter for engine protection in dust environment

http://www.360che.com/tech/140307/29996.html