1. F00ZC01310 Injector Valve Assembly Replacement Conditions

（1）Valve Cap

Under the microscope, magnify 20 times to check that the oil inlet hole of the valve cap and the oil return hole of the bonnet are not worn, grooved, scratched, damaged, rusted or dented.

No.	1	2	3
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Description	Injector valve cap inlet hole location	Injector valve cap return hole location	The oil inlet and oil return holes of the injector valve cap are free of wear, grooves, scratches, damage, rust, dents, which do not need to be replaced
No.	4	5	6
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Description	The injector valve cap oil hole is recessed and needs to be replaced	The injector valve cap oil hole is worn and needs to be replaced	The injector valve cap oil hole is punched and needs to be replaced

The wear of the top oil return hole causes the oil return to be too large and the leaking injector cannot inject oil.

The oil inlet hole on the side is blocked, causing the injector to fail to establish the pressure chamber and the injector cannot work normally

Wear of the oil chamber of the valve cap will cause fuel injector failure. In severe cases, the fuel injector will not work properly.

（2）Valve Rod

Microscope amplification 20 times, check the valve rod for wear, not smooth surface color, rust.

The excessive clearance between the valve stem wear, housing and the valve cap will causes injector lag.

The valve stem lag will cause the injector to start the solenoid to start, and the oil needle can not return quickly after the nozzle is opened.

Check the injector components before replacing the injector valve assembly according following the injector service manual to avoid further damage to the injector valve assembly after replacement.

2. F00ZC01310 Injector Valve Assembly Storage Standard 

（1）Choose a Suitable Storage Place

The warehouse and cargo yard where the Injector Valve Assembly is stored should be kept clean and dry, and away from the factory buildings that generate harmful gases and dust; do not mix with acid, 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.

（2）Strict Requirements of Warehousing

Strict inspections should be carried out when the CRDI injector valve sets are put into storage, the surface cleaning work should be done well to remove water traces, oil stains, ash and other dirt, remove the rust and do anti-rust treatment in time. Packaged Injector Valve Assembly must be protected from damage.

（3）Keep The Warehouse Dry And Preventing Moisture

The relative humidity is usually below 70% for the CRDI injector valve set placed in the room, and the corrosion of the Injector Valve Assembly is significantly reduced.

Injector Valve Assembly must be stored in the warehouse, and they are forbidden to store in the same warehouse with commodities with high water content.

（4）Stack Properly

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

If the Injector Valve Assembly 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 Injector Valve Assembly exposed in the air for a long time.

It is forbidden to store acid, alkali, salt and other substances together with the Injector Valve Assembly.

The unpacked Injector Valve Assembly must be rust-proof during secondary storage.

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