Launch CNC-602A User Manual page 8

LAUNCH
Fig. 05 for fuel top-supply injector
1-Plate bolt; 2-Riffle screw; 3-Crescent
4-Fuel distributor stopper; 5-Adapter for fuel
top-supply injector;
8-Adjustable screw
Installing and testing procedures for
side-supply injectors
1) Choose proper couplers for side-supply injectors (3)
and proper O-rings, and mount them together.
(Remember to apply a little lubricating grease.)
2) Mount the injectors on the couplers and install them
onto the side-supply fuel distributor.
3) Mount the cross plate (1) and tighten it with bolts.
4) Mount the fuel distributor and injectors onto the fuel
distributor supporter, and tighten them with two riffle
screws (black). See Fig. 06.
5) Connect the injector pulse signal wire.
6) Before doing this test, press [Drain] button to drain
the test liquid from the measuring cup if there is any.
7) Select [Uniformity/Sprayability test] on the control
panel, set the corresponding parameters and press
[Run] button to start the testing. (when it is running
press the ［ ］key then press [run] key the system
pressure will come back to the default pressure value
When the function of item section is working)
8) When the testing is over, Injector Cleaner & Tester
will auto stop at the ring of the buzzer.
1- Cross plate; 2-Fuel side-supply injector; 3- Coupler for
fuel side-supply injector; 4,5-O-ring; 6-Side-supply fuel
distributor
Note:
♦
While testing, Injector Cleaner & Tester can
drain fuel by pressing [Drain] key. At default,
solenoid valve is set at the closed state.
Uniformity test can be done at this state. When
[drain] key is pressed, solenoid valve will drain
oil.
♦
The default cylinder number of the system is 0,
which means that all injectors are working when
Injector Cleaner & Tester is running. A specific
6-Injector;7-Knurled
Fig. 06
cylinder can be selected by setting the number
of the cylinder.
♦
The system pressure can be adjusted by
pressing [decrease pressure] / [increase
pressure] key when testing.
♦
Keep the fluid level to at least 30 ml while
testing. Foam will be produced in the liquid
during injection. In order to prevent spillover,
set the related parameter with reference to the
following formula :Pulse width(ms)
plate;
speed(rpm) / 120
♦
This is for checking the uniformity of each
nut;
cylinder. Injecting difference of all injectors on
one vehicle should be kept within 2% during
uniformity testing.
♦
During operating, the user can select parameter,
such as RPM or PW, and then press
key to achieve the status of the simulation.
♦
Good injectors may have identical injecting
angle, uniform spraying but no jet. Otherwise,
replace the injector.
♦
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.
Reverse flush
Injector Cleaner & Tester can also perform reverse flush
by connecting
[Uniformity/Sprayability test] mode. Reverse flush is a
way to clean the injectors with the test liquid flowing from
the outlet to the inlet of the injector. Reverse flush may
remove the dirt inside the injector or the injector Strainer
(Only for the top fuel supply injector).
Procedures:
1) Choose a reverse flush coupler and proper O-ring,
and mount them under the fuel distributor.
2) Install the injectors in reverse direction (outlet upward,
and inlet downward).
3) Choose a proper coupler according to the shape of
the injector and put it under the injector.
4) Install the fuel distributor and the injector on the fuel
distributor supporter with a proper adjustable screw
and knurled nuts, and tighten two riffle screws (black).
See Fig. 07.
5) Connect the injector pulse signal wire.
6) Set parameter, and press [Run] button to start
cleaning(Injector Cleaner & Tester can switch
between reverse flush by pressing [Drain] key when
it is running press the ［ ］key then press run key
6
Injector Cleaner & Tester User's Manual
≤ 18000
with flush-back
time(s)
× ×
［ ◄ ］ or ［ ► ］
adaptor at