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2.2. 294704-0165 Injector Solenoid Valve Installation Precautions
(1) The replacement of the injector solenoid valve 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.
(2) Replacement of wearing parts of the fuel system, cleaning requirements for the connection between
the fuel system and the injector solenoid valve, the fitting clearance of the injector solenoid valve
connection, the installation angle and tightening torque of the injector solenoid valve, 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 solenoid valve.
(3) When installing the injector solenoid valve on the engine, it is necessary to clean the engine block,
cylinder head and other parts connected to the injector solenoid valve, and ensure that there is no
dust, carbon deposits, water, rust spots, etc.
(4) Before installing, check whether the injector solenoid valve washer shim has been replaced and
installed on the injector solenoid valve.
(5) When installing the injector solenoid valve, apply lubricant between the injector solenoid valve, fuel
nozzle sealing washer shim and O-ring.
(6) Without replacing new washer shim 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 injector solenoid valve and nozzle to break and cause damage to the engine.
(7) When installing the injector solenoid valve on the engine, please carefully check the components
related to the installation of the injector solenoid valve, such as the injector solenoid valve pressure
plate, screw, injector solenoid valve rod and other accessories are not deformed, and install it in strict
accordance with the operation steps of the engine maintenance manual.
(8) It is forbidden to operate the bare injector solenoid valve for a long time in an environment with
serious dust pollution and corrosion to iron products.
(9) It is forbidden to operate the bare injector solenoid valve for a long time in a strong magnetic field
environment.
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