ANCEL AJ600 GDI Piezo Manual de inicio rápido - Página 10
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6)
Select Uniformity/Sprayability test function, set corresponding parameters (consult the appendix for pressure
setting, consult vehicle manuals for other parameters as needed), and then press RUN key to start the test.
7)
When the test is completed, the equipment will auto stop with the ring of the buzzer.
Note:
1)
While testing, it can drain fuel by pressing DRAIN icon. At default, solenoid valve is set at the closed state.
Uniformity test can be done at this state. When DRAIN icon is pressed, solenoid valve will drain fuel.
2)
The system pressure can be adjusted by pressing + or – at testing.
3)
During operating, the user can select parameter, such as RPM or PW, and then press
status of the simulation.
4)
Good injectors may have identical injecting angle, uniform spraying but no jet. Otherwise, replace the injector.
5)
In the sprayability test, a special electrical parameter--the minimum injection pulse width of injector--can be
tested, to compare the injectors on the same engine. That is to set cylinder No., start the test from minimum
injection pulse width, and then gradually increases the pulse width till the injector starts injection (observed with
the help of backlight). The value set at this moment is the minimum injection pulse width, so the difference of
minimum injection pulse width among these injectors could be observed.
Backflushing
Backflushing is limited to the top-supply injector by connecting the backflushing connector under uniformity /
sprayability test. Test solution enters from the outlet of the injector and flows out from the inlet during backflushing.
Backflushing can wash away the dirt inside the injector and dirt attached to the filter.
1)
Find the backflushing connector (and select a supporting "O" ring to install it on the connector) installed below
the fuel separator;
2)
Install the top-supply injector in reverse direction (outlet up, inlet down);
3)
Select the corresponding coupling element under the injector according to the shape of injector;
4)
Adjust the screws to fix the fuel separator and injector assembly in the fuel filler hole of the upper cover according
to the height of injector and tighten the compression screws (black) on both sides evenly;
5)
It is recommended to press [Drain] button to drain the remaining fuel in the transparent tube to avoid overflow
of test solution before backflushing.
6)
Connect the pulse signal line of the injector properly; set the operating parameters and press Run button to
execute backflushing function; the system pressure can be adjusted by + and – buttons on the control panel
during backflushing.
7)
The system will stop automatically after completion of the cleaning.
5.4 Leakage Test
Leakage test is to inspect the sealing conditions of the injector needle valve under system pressure and to find out if
the injector is dribbling
(Installation for backflushing)
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AJ600 GDI Piezo Injector Cleaner & Tester
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key to achieve the