How to change the oil filter correctly?

Engine is the heart of construction machinery, which maintains the operation of the whole machine. In the process of engine operation, metal debris, dust, carbon deposits oxidized under high temperature, colloidal precipitates, water and so on are constantly mixed with lubricating oil. The function of oil filter is to filter impurities, colloids and water in oil, transport clean oil to lubricating parts, prolong its service life, and play an important role in engineering machinery.

So, do you want to fill the oil first to replace the oil filter?

 

First of all, we suggest that you must choose the filter elements produced by the regular manufacturers.

 

The oil filter element is simple in structure, and its internal filter paper and some important parts are difficult to distinguish from the appearance. Therefore, a variety of copy filter elements emerge in endlessly, and the price is low, so some users to save money to buy fake and inferior products, remind you that these irregular channels out of the filter elements for your love machine not only can not play a good protective role, and even cause some damage, once the machine is mixed with impurities, it will be worth it.a

Replacement steps of oil filter element:

Step 1: Discharge waste oil

 

First, discharging the waste oil from the tank, placing the old oil container under the oil pan, opening the discharging bolt and discharging the waste oil. When discharging oil, try to let the oil drop more for a period of time, to ensure that the waste oil is discharged clean. (When oil is used, many impurities will be produced. If it is not discharged cleanly when replacing, it will easily block the oil pipeline, resulting in poor oil supply and structural wear and tear.微信图片_20190116101918

Step 2: Remove the old oil filter

 

Move the old oil container under the machine filter and remove the old filter element. Be careful not to let waste oil dirty the inside of the machine.

Step 3: Preparations before installation of oil filter element

 

This step will tell you to replace the new filter without filling the filter element with oil first.

 

There are two ways to install oil filter element. Vertical installation is common, and many small excavation filters are installed horizontally. Installation method is different, so there are two kinds of filling oil:

This step will tell you to replace the new filter without filling the filter element with oil first.

 

There are two ways to install oil filter element. Vertical installation is common, and many small excavation filters are installed horizontally. Installation method is different, so there are two kinds of filling oil:微信图片_20190116101934

First of all, the oil filter element installed vertically is connected to the oil pump through a pipeline. This installation method generally recommends replacing the machine filter and filling the filter element with oil. If the new filter is not filled with oil, air resistance will occur inside the new filter element, which will cause short time lack of lubrication inside the machine when landing, and will cause structural wear and tear. The advantage of vertical installation is that the filter element has better sealing performance, and oil seepage rarely occurs.

In addition, the oil filter element installed horizontally is directly connected to the oil pump without passing through the oil pipeline. This design does not produce air resistance inside the filter when adding oil to the tank. The filter element does not need to pre-fill the oil inside before installation. While injecting new oil into the tank, the oil filter element can directly fill up the oil.

Step 4: Install new oil filter element

 

Check the oil outlet where the oil filter element is installed, and clean up the dirt and residual oil on it. Before installation, first put the sealing ring on the oil outlet position, and then slowly screw up the new machine filter. The machine filter should not be tightened too tightly. Usually, after tightening with the hand, then use the wrench to twist 3/4 circles. Attention should be paid to installing new filter element. Do not use wrench to screw too hard. Otherwise, it is easy to damage the sealing ring inside the filter element, resulting in poor sealing effect and no filtering effect.

微信图片_20190116101938

Step 5: Fill the oil tank with new oil

 

Finally, the new oil is injected into the oil tank. If necessary, the funnel should be used to prevent the oil from being poured out of the engine. After filling up, check the lower part of the engine again for leaks.

 

If there is no leakage, check the oil gauge to see if the oil is added to the upper line. It is recommended that the oil be added to the upper line. In the daily work process, we also need to check the oil gauge regularly. If the oil is less than offline, we should replenish it in time.

 

A small oil filter element may not be noticeable, but it has an irreplaceable position in construction machinery. If the oil in the engine does not pass through the filter element and enter the lubricating oil path directly, it will bring the impurities in the oil into the metal friction surface, accelerate the wear of parts and reduce the service life of the engine. Replacing oil filter element is a very simple work, but the correct operation method can prolong the service life of the machine.


Post time: Jan-16-2019