1. 2417413093 Diesel Pump Overflow Valve Packing List 

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Name	Diesel Pump Overflow Valve Assembly	White Anti-Rust Bag	Rust-Proof Paper
Description	Diesel Pump Overflow Valve part number: 2417413093	Prevent diesel pump overflow valve from getting rust	Preventing diesel pump overflow valve from rusting

• Minors are prohibited from using the diesel pump overflow valve assembly, VCI anti-rust bag, and rust-proof paper to avoid personal injury.
• The diesel pump overflow valve housing cover and oil return cover are recyclable accessories and can be recycled.
• VCI anti-rust bags and rust-proof paper are non-degradable materials. Please dispose of them properly after use.
• The diesel pump overflow valve and the installation parts guide tube should be treated with appropriate sealing oil during installation.

2. 2417413093 Diesel Pump Overflow Valve Installation Precautions

• Replacement of the diesel pump overflow valve must be strictly performed according to the vehicle engine repair manual, specifying the electrical system, low-pressure fuel inlet system pressure, high-pressure fuel system pressure, and requirements for replacing wear parts in the fuel system (including low-pressure and high-pressure fuel system filters).
• Replacement of wear parts in the fuel system, cleaning requirements for the fuel system and diesel pump overflow valve connections, fit clearance at the diesel pump overflow valve connection, diesel pump overflow valve installation angle and tightening torque, intake system fit clearance, and exhaust system fit clearance requirements. This ensures the engine’s lifespan and the proper functioning of the diesel pump overflow valve.
• When installing the diesel pump overflow valve on the engine, the engine block, cylinder head, and other components connecting to the diesel pump overflow valve must be cleaned and ensured to be free of dust, carbon deposits, water, rust, etc.
• Before installation, check that the diesel pump overflow valve nozzle gasket has been replaced and is installed on the diesel pump overflow valve.
• When installing the diesel pump overflow valve, apply lubricant between the diesel pump overflow valve, the nozzle sealing gasket, and the O-ring.
• Failure to replace the sealing gasket can lead to: deformation of the diesel pump overflow valve nozzle cap, nozzle deformation, and nozzle nozzle orifice deformation, resulting in oil and air leaks, severely damaging the diesel pump overflow valve, and potentially causing nozzle breakage and engine damage.
• When installing the diesel pump overflow valve on the engine, carefully inspect all components related to the installation, such as the relief valve pressure plate, screws, and push rods, for deformation, and strictly follow the operating procedures in the engine repair manual.
• Do not expose the diesel pump overflow valve for extended periods in environments with severe dust pollution or corrosive substances.
• Do not expose the diesel pump overflow valve for extended periods in strong magnetic fields.

3. 2417413093 Diesel Pump Overflow Valve Causes of Being Damaged

• Didn’t operate properly according to engine maintenance manual during disassembly or installation, resulting in damage to the diesel pump overflow valve.
• The fuel oil used for the vehicle does not meet the standard cause damage to the diesel pump overflow valve, such as: the water content in the fuel oil exceeds the standard, iron powder, aluminum powder, sulfide impurities exceed the standard, etc.
• The engine is not regularly maintained according to the engine maintenance manual (please refer to the vehicle maintenance manual for the maintenance mileage). For example, failure to replace the lubricating oil of the engine system for a long time will cause abnormal wear of the engine, excessive exhaust gas volume or a large amount of carbon deposits inside the engine. The filter is not replaced during maintenance or the replaced filter cannot reach the original filter standard. all above reasons can cause damage to the diesel pump overflow valve.
• The abrasion of the diesel pump overflow valve produces iron powder and aluminum powder enter the diesel pump overflow valve and cause damage to the diesel pump overflow valve.
• The deformation and abrasion of fuel tank result in iron powder or aluminum powder entering the diesel pump overflow valve and causing damage to the diesel pump overflow valve.
• The diesel pump overflow valve is damaged due to replacement or adjustment of the relevant parts of the diesel pump overflow valve. For example, the valve clearance does not meet the standard after the engine is repaired, the replacement or modification of the wiring harness connected to the diesel pump overflow valve fails to meet the original standard.
• The engine is overheated and overloaded for a long-time working result in damage to the diesel pump overflow valve.
• The diesel pump overflow valve will be damaged naturally at the end of its working life.
• The diesel pump overflow valve is magnetized (diesel pump overflow valve parts’ magnetic exceeded) causing the diesel pump overflow valve to not work properly.
• Before replacing the diesel pump overflow valve, please check the engine parts carefully according to the engine maintenance manual to avoid the diesel pump overflow valve being damaged again after replacement.

4. 2417413093 Diesel Pump Overflow Valve Storage Standard

• Choose a Suitable Storage Place

The warehouse and cargo yard where the diesel pump overflow valve is stored should be kept clean and dry, and away from the factory buildings that generate harmful gases and dust; do not mix with acids, alkali, salt, and other substances; the storage place should have a good drainage system; the cargo yard should be flattened with gravel or furnace ash etc. to enhance the water permeability of the surface layer to keep the reservoir area dry.

• Strict Requirements of Warehousing

Strict inspections should be carried out when the diesel pump overflow valves are put into storage, the surface cleaning work should be done well to remove water traces, oil stains, ashes, and other dirt, remove the rust and do anti-rust treatment in time. Packaged diesel pump overflow valves must be protected from damage.

• Keep The Warehouse Dry And Preventing Moisture

The relative humidity is usually below 70% for the diesel pump overflow valves placed in the room, and the corrosion of the diesel pump overflow valves is significantly reduced.

Diesel pump overflow valves must be stored in the warehouse, and they are forbidden to store in the same warehouse with commodities with high water content.

• Stack Properly

After the diesel pump overflow valve is exposed to rain, the corrosion rate will increase significantly. The purpose of sealing is to isolate the diesel pump overflow valve from rainwater and humid air, so the warehouse window should be checked in time to avoid rainwater entering the warehouse.

If the diesel pump overflow valve package is damaged, it should be repaired or replaced; when the package is damp, the packaging material should be dried; if the original anti-corrosion and oil applied at the factory is found to be damaged or dried up, it should be cleaned and re-applied oil in time.

• It is forbidden to leave the diesel pump overflow valve exposed in the air for a long time.
• It is forbidden to store acids, alkalis, salts, and other substances together with the diesel pump overflow valve.
• The unpacked diesel pump overflow valve must be rust-proof during secondary storage.

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