0445120442 Fuel Injection Function
(1) Increase oil pressure (constant pressure): Increase injection pressure to 10 ~ 20 MPa.
(2) Adjust fuel injection time (timing): Controls starting and stopping fuel injection at specified time.
(3) Adjust the fuel injection quantity (quantitative): According to the working conditions of diesel engine, change the fuel injection quantity to adjust the speed and power of diesel engine.
0445120442 Fuel Injection Spare Parts
|
No.
|
1 |
2 |
|
Image
|
 |
 |
| Name |
O-Ring |
Gasket
|
|
Description
|
Ensure to meet the standard of the sealing performance between the injector and the engine |
Made of brass, used to ensure the tight fit between the injector cap end and the engine |
| No. |
3 |
4
|
|
Image
|
 |
 |
| Name |
Nozzle Protective Cover Cap |
Injector House Protective Cover Cap
|
|
Description
|
Protect nozzle holes from
being polluted and blocked |
Protect oil inlet from
being polluted and blocked |
| No. |
6 |
/
|
|
Image
|
 |
/ |
| Name |
Solenoid Valve Protective Cap |
/
|
|
Description
|
Protect the solenoid valve body and terminals from being damaged by external forces |
/
|
- Minors are forbidden to use the fuel injector assembly, O-ring, gasket, nozzle protective cover, fuel injector house protective cover, solenoid valve protective cover, VCI anti-rust bag, and air bubble bag to avoid personal injury.
- O-ring and gasket are disposable installation accessories, and need to be replaced for
re-installation.
- The nozzle protective cover, the injector house protective cover, and the solenoid valve protective cover are recyclable accessories that can be reused.
- VCI anti-rust bags and bubble bags are non-degradable materials, please dispose of them properly after using.
- The injector and the installation parts should be coated with appropriate sealing oil during installation.
0445120442 Fuel Injection Installation Precautions
- The replacement of the fuel injector must strictly follow the electrical system, the approved pressure of the low-pressure fuel intake system, the approved pressure of the high-pressure fuel circuit system, and fuel system replacement consumables requirements (including the low-pressure fuel circuit system filter and the high-pressure fuel circuit) specified in the vehicle engine maintenance manual,
- Replacement of wearing parts of the fuel system, cleaning requirements for the connection between the fuel system and the injector, the fitting clearance of the fuel injector connection, the installation angle and tightening torque of the injector, the fitting clearance of the intake system, and the fitting clearance of the exhaust system to ensure the service life of the engine and the normal operation of the injector.
- When installing the fuel injector on the engine, it is necessary to clean the engine block, cylinder head and other parts connected to the fuel injector, and ensure that there is no dust, carbon deposits, water, rust spots, etc.
- Before installing, check whether the fuel injector nozzle gasket has been replaced and installed on the fuel injector.
- When installing the fuel injector, apply lubricant between the fuel injector, fuel nozzle sealing gasket and O-ring.
- Without replacing new gasket can lead to: deformation of the tight cap of nozzle, deformation of nozzle, deformation of nozzle orifice, oil leakage and air leakage, which will cause serious damage to the fuel injector and nozzle to break and cause damage to the engine.
- When installing the injector on the engine, please carefully check the components related to the installation of the injector, such as the injector pressure plate, screw, injector rod and other accessories are not deformed, and install it in strict accordance with the operation steps of the engine maintenance manual.
- It is forbidden to operate the bare injector for a long time in an environment with serious dust pollution and corrosion to iron products.
- It is forbidden to operate the bare injector for a long time in a strong magnetic field environment.
0445120442 Injector Reasons for Not Working Normally
(1) There is air in the oil circuit of the engine fuel system.
(2) Vehicle oil pump oil supply system is not normal.
(3) Engine common rail system oil leakage or pressure limiting valve damage.
(4) There is a short circuit, cutting out and poor contact in the wiring harness connected to the fuel injector of the vehicle.
(5) The long-term placement of the injector causes the anti-rust oil to solidify, and the internal components are stuck or the oil holes are blocked.
Before installing, carefully check whether other components in the common rail system except the fuel injector are damaged so as to prevent the fuel injector from not working properly after being replaced.
0445120442 Fuel Injection Storage Standard
(1) Choose a suitable storage place
1) The warehouse and cargo yard where the fuel injector 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 to enhance the water permeability of the surface layer to keep the reservoir area dry.
(2) Strict requirements of warehousing
1) Strict inspections should be carried out when the fuel injectors 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 injectors must be protected from damage.
(3) Keep the warehouse dry and preventing moisture
1) The relative humidity is usually below 70%for the fuel injectors placed in the room, and the corrosion of the fuel injectors is significantly reduced.
2) Injectors 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
1) After the injector is exposed to rain, the corrosion rate will increase significantly. The purpose of sealing is to isolate the injector from rainwater and humid air, so the warehouse window should be checked in time to avoid rainwater entering the warehouse
2) If the fuel injector 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 exposed in the air for a long time.
It is forbidden to store acid, alkali, salt and other substances together with the injector.
The unpacked fuel injector must be rust-proof during secondary storage.
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