The maintenance method of diesel engine oil-bath air filter is as follows:
1. The working principle of the oil-bath air filter: The rapidly rotating air current carries the oil up, and uses the viscosity of the oil to absorb dust and impurities in the air, and the oil particles produced by the oil will be trapped by the steel wire filter element. Adsorption and interception, so that the impurities in the air are effectively removed to achieve the filtering effect. The filtration process is when the air containing impurities passes through the oil basin, so that the impurities in the air come into contact with the oil, and make them attached to the oil film. Then the air passes through the metal wire filter layer, so that the impurities wrapped in the oil film adhere to the metal wire, reaching the first level of air filtration. In principle, a single-stage oil-bath air filter cannot be used to filter the intake air. The more common structure is combined with a dry paper air filter element to form a secondary filter. The air filtered by the oil bath filter element enters the paper air filter element for fine filtration, and then enters the diesel engine cylinder.
2. Maintenance requirements for oil bath air filter.
(1) The new car may not be filled with oil before leaving the factory, so it must be carefully checked before use.
(2) Oil should be added for the first use. The type of oil filled is the same as that of the diesel engine. When filling engine oil, the oil depth should not exceed the specified marking line (if there is no marking line, the filling depth should not exceed 30mm). If you fill too much, it may cause oil dripping at the outlet of the exhaust pipe.
(3) When the oil pan of the engine is shaken and the oil is not easy to flow, the filter element should be cleaned and the oil should be replaced. Under particularly harsh conditions of use, it must be checked every day.
Under normal circumstances, the oil can be used continuously for 80-150h. The filter can be used for a long time and does not need to be replaced.
(4) Before starting the diesel engine for the first time every day, check whether the connecting bolts or hooks between the shell and the oil basin are loose and fastened.
3. Disassembly, inspection and cleaning steps.
(1) Stop for more than 10 minutes to allow the oil in the air filter to fully flow down and accumulate in the oil basin.
(2) Loosen the clamp 2 on the shell, remove the oil basin 3 and the filter 4, taking care not to damage the gasket 5.
(3) Pour out dirty engine oil and sludge, and clean the oil bowl.
(4) Put the filter element in diesel oil for cleaning and drip dry.
(5) If the shell is very dirty, clean it together.
(6) Check the gaskets 5 and 6, and replace them if necessary.
(7) Fill the oil basin with the same oil as the diesel engine to the scale indicated by the arrow.
(8) Reversely install the relevant parts, fasten the clamp and then tighten the relevant bolts.
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