This filter element is the core protective component of the engine fuel supply system, mainly responsible for the function of "fine filtration". Its technical features include:
High precision filtration: Compared to coarse filters, fine filter cartridges have higher filtration accuracy and can effectively intercept tiny particles and impurities with diameters in the micrometer range (such as metal shavings, dust, rust), preventing wear of fuel injectors and precision parts of high-pressure oil pumps.
Efficient oil-water separation: Some high-end fine filters have preliminary water separation function, which can remove free water in diesel, protect the fuel system from water corrosion and cavitation damage, and ensure combustion efficiency.
High fluidity and low pressure drop: High quality filter paper or fiberglass material is used to ensure filtration efficiency while ensuring smooth fuel flow, avoiding insufficient fuel supply caused by blockage and affecting engine power output.
Structural durability: The shell and end cap have been reinforced to withstand the high-pressure impact of the fuel pump, with excellent sealing performance to prevent unfiltered fuel from bypassing the engine.
3. Material and craftsmanship
Filter material: Imported or domestically produced high-quality wood pulp fiber composite filter paper is usually used, which has the characteristics of large pollutant holding capacity, good breathability, and strong oil resistance.
Skeleton: The internal support skeleton is mostly made of galvanized steel plate or high-strength plastic to ensure that the filter element does not deform under pulsating pressure.
1. Suitable for host devices
This accessory is mainly used in XCMG construction machinery equipped with Yunnei Power YN4E series engines, including but not limited to:
XCMG loaders: models equipped with YN4E engines in series such as LW300FN, LW500KV, LW600KN, etc.
Other XCMG machinery: Some small excavators, integrated excavators and loaders (busy at both ends), or specialized vehicles that use the same YN4E engine can also use this filter element.
2. Requirements for homework environment
High dust environment: suitable for working conditions with high dust such as mines, construction sites, and sand and gravel factories. Diesel fuel is prone to pollution in such environments, and regular replacement of fine filters is crucial for extending engine life.
Continuous overload operation: suitable for engineering tasks that require long-term continuous operation and high load. A stable fuel supply is the key to ensuring that the engine does not overheat or stall.
Oil quality fluctuation areas: When used in areas with uneven diesel quality, this fine filter can provide additional safety assurance and reduce the failure rate caused by inferior diesel.
3. Maintenance suggestions
Replacement cycle: It is recommended to replace every 500-1000 hours of operation or according to the maintenance manual specified by the engine manufacturer. If there are many impurities in the diesel used, the replacement interval should be shortened.
Installation precautions: When replacing, clean the filter base, ensure that the sealing ring of the new filter element is coated with an appropriate amount of oil, and tighten it according to the torque requirements to prevent air or oil leakage.
Supporting use: It is recommended to check and maintain the diesel coarse filter synchronously, forming a multi-level protection system to maximize the protection of the engine fuel system.
