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Fan Clutches
Maintain Your Fan Clutches
2022-10-19
Diesel-Engines
Why Diesel Engines Are Better
2022-10-21
Fan Clutches
Maintain Your Fan Clutches
2022-10-19
Diesel-Engines
Why Diesel Engines Are Better
2022-10-21
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How To Maintain The Truck Air Filter

  • We know that truck engines are very important and precise components for trucks. Even the smallest impurities will damage the engine. The truck engine has a component called an “air filter”.

  • When the air filter is too dirty, the engine will have insufficient air intake and incomplete fuel combustion, resulting in unstable engine operation, reduced power and increased fuel consumption. At this time, as the guardian of the engine, the air filter plays a very important role in maintenance.

How Often Do We Need To Replace The Truck Air Filter?

  • The air cleaner element also has a certain life limit. When the service life is exceeded, the function of the air filter will decrease.
  • There are also many types of air filters, and the instructions for each type have recommended filter element maintenance, replacement mileage or time.
  • In general, it is recommended that you clean the filter element every 7500km or half a year, and replace the filter element every 30000km or two years. If it is used in a harsh environment for a long time, the maintenance and replacement cycle can be advanced or shortened.

The Harm Of Dirty Air Filter

  1. If the filter element is not cleaned or replaced regularly, a large amount of dust will accumulate in the air filter. Once the air filter is completely blocked by dust, the intake resistance of the truck will be greatly increased and the intake volume will be reduced, resulting in incomplete fuel combustion, which will reduce the engine power and economic performance.

  2. If the filter element is not replaced beyond its service life, it will be damaged and lose its filtering function. A large amount of dust will enter the cylinder, which will also cause accelerated wear of other important parts of the truck. In addition, the dust will also enter the oil pan through the piston ring clearance, which will bring adverse consequences to the lubrication system.

  3. If working without an air filter, the wear of the piston and cylinder liner will increase 3-5 times, and the wear of the piston ring will increase 8-10 times. Therefore, it is of great significance to maintaining the air filter in strict accordance with the technical requirements.

truck-air-filter

The Harm Of Dirty Air Filter

  1. If the filter element is not cleaned or replaced regularly, a large amount of dust will accumulate in the air filter. Once the air filter is completely blocked by dust, the intake resistance of the truck will be greatly increased and the intake volume will be reduced, resulting in incomplete fuel combustion, which will reduce the engine power and economic performance.

  2. If the filter element is not replaced beyond its service life, it will be damaged and lose its filtering function. A large amount of dust will enter the cylinder, which will also cause accelerated wear of other important parts of the truck. In addition, the dust will also enter the oil pan through the piston ring clearance, which will bring adverse consequences to the lubrication system.

  3. If working without an air filter, the wear of the piston and cylinder liner will increase 3-5 times, and the wear of the piston ring will increase 8-10 times. Therefore, it is of great significance to maintaining the air filter in strict accordance with the technical requirements.

Truck Air Filter Maintenance Manual

Maintenance Of Dry Inertial Filter

The dry inertial air filter is composed of a dust cover, deflector, dust outlet, vacuum cup, etc.

    • Regularly check and clean the dust discharge hole on the centrifugal dust cover. During installation, ensure that the rubber gasket at the connection is sealed without air leakage.
    • In case of collision between the dust cover and the deflector, it shall be adjusted in time to avoid changing the original design flow direction and reducing the filtering effect.
    • Some drivers are not allowed to refuel the dust cup. Because the oil is easy to splashon the ash outlet, deflector and other parts, the part can absorb dust, which will eventually reduce the filtering and separation capacity.
truck-air-filter

Maintenance Of Wet Inertial Filter

The wet inertial air filtering device consists of a central pipe, an oil pool, etc.

  • Clean the oil pan and change the oil regularly. When changing the oil, the oil viscosity should be moderate.
  • The oil level in the oil pool shall be moderate. Oil should be added between the underlined lines or at the arrow marks on the oil pan.

Maintenance Of Dry Filter

The dry filtering device consists of a paper filter element and a sealing gasket.

  • When removing the dust on the paper filter element, block both ends of the filter element with a clean cotton cloth or rubber plugs, brush the dust on the filter element surface along the crease direction with a soft bristle brush, and gently knock the end face to remove the dust.
  • Do not clean the paper filter element with water, diesel oil, or gasoline, otherwise, the filter element pores will be blocked and air resistance will be increased.
  • If the filter element is damaged, the upper and lower ends of the filter element are uneven or the rubber seal ring is aging, deformed, or damaged, please replace the filter element with a new one.
  • During installation, it shall be noted that the gasket or sealing ring at each joint shall not be lost or installed incorrectly to avoid an air short circuit. Do not over-tighten the wing nut of the filter element to prevent crushing the filter element.

Maintenance Of Wet Filter

The wet filtering device is mainly composed of a metal filter screen immersed in engine oil.

  • Clean the dust on the filter screen with diesel or gasoline regularly.
  • Soak the filter screen with engine oil first, and then assemble the filter screen after the excess engine oil drips. During installation, the transoms on the filter disc of the filter cake filter screen shall be overlapped and aligned, and the rubber rings inside and outside the filter screen shall be well sealed to prevent short circuitsof air intake.
truck-air-filter

Maintenance Precautions For Truck Air Filter

Basic steps of truck air filter maintenance and the advantages of the truck air filter of CNHTC:

  • During installation, the air filter and the engine intake pipe must be tight and reliable to prevent air leakage and affect the filtering effect. Rubber washers must be installed at both ends of the filter element; The wing nut fixing the air filter cover cannot be tightened too tightly to avoid damaging the paper filter element.The air filter of CNHTC uses nano filter material, which can reduce the filter resistance and increase the driving power of the truck.
  • During maintenance, the paper filter element shall not be cleaned with oil, otherwise,the paper filter element will become invalid, leading to flight accidents. During maintenance, the dust and dirt attached to the surface of the paper filter element can only be removed by vibration, soft brush or compressed air blowback. The coarse filtration part shall timely remove the dust from the dust collection part, blades and cyclone tubes. The fine ash holding capacity of the air filter of CNHTC is particularly high, which will better protect the engine and our trucks.
  • When using, the air filter shall be strictly prevented from being wetted by rainbecause once the paper core absorbs a large amount of water, the air inlet resistance will be greatly increased, and the service life will be shortened. In addition, the paper core air filter cannot contact oil and fire. The service life of the air filter of CNHTC is longer than that of other brands of air filters, so even if the paper core absorbs water, its resistance will be relatively small.
  • In fact, the filter manufacturer does not encourage drivers to dismantle and clean the air filter system. After all, no matter how much cleaning is carried out, the filtering effect will be greatly reduced. In general, cleaning shall not exceed 3 times every 10000 km. But like the air filter of CNHTC, it can maximize mileage and reduce maintenance costs comprehensively. However, if you are in a dusty place, such as a construction site or desert, you should shorten the maintenance mileage accordingly to ensure that the engine can breathe smoothly and cleanly.
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