Cleaning & Testing Sequences; Tidy Up After Operating; Operation; Ultrasonic Cleaning - Launch CNC-602A User Manual

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Cleaning & testing sequences
A complete cleaning and testing sequence shown below
should be followed:

Ultrasonic cleaning;

Uniformity/Sprayability test;

Leakage test;
Injecting flow test;
Auto. test.
Select the corresponding parameter and set up according
for various tests. For detailed operations, please refer to
"Operation" part.

Tidy up after operating

Tidy-up should be done after cleaning and testing is
completed:
Press [Drain] button to drain the test liquid into fuel
tank.
Switch off the power and unplug from the socket.
Drain the injector detergent to its original bottle and
then wipe the ultrasonic cleaner with soft cloth.
Clean the Injector Cleaner & Tester control panel
with soft cloth.
Drain the test liquid from the tank into a container to
avoid volatilization. Store the test liquid in a safe
place if it can be used again, or dispose of it in
accordance with relevant regulations if it is too dirty.

Operation

Ultrasonic Cleaning
Injector Cleaner takes advantage of the penetrability and
cavitation impact wave caused by ultrasonic wave
traveling through the medium to provide powerful
cleaning on objects with complex shapes, cavities and
pores, so that the stubborn carbon deposits can be
removed from the injectors.
Procedures
1) Connect the power supply: connect one end of the
power cable to the power socket on ultrasonic
cleaner and the other end to power socket.
2) Place the injectors which have gone through surface
cleaning in a launder.
3) Add enough injector detergent into ultrasonic cleaner
so that the liquid level is about 20mm above the
needle valve of injectors.
4) Plug the injector pulse signal wires to injectors
respectively then turn on the power switch of the
ultrasonic cleaner.
5) Select [Ultrasonic cleaning] in the function column by
pressing " " key. Select [Timer] in the parameter
column, and set the timer (the default time is about
10 minutes) in the value column. Press [Run] button
Injector Cleaner & Tester User's Manual
to start cleaning.
6) When the time is up, Injector Cleaner & Tester will
stop automatically as the beeper rings.
7) Turn off the power of the ultrasonic cleaner, take the
injectors out of the launder and wipe them with a dry
soft cloth. Get ready for next operation.
Note:
Before the injector detergent is added into
ultrasonic cleaner, do not turn on the ultrasonic
cleaner. Otherwise, damage may be incurred.
Do not dip the pulse signal cables plug and the
injector's body into the detergent.
Uniformity/Sprayability Test
Uniformity test is to find out if the flow of different injectors
meets the requirement or specifications under the same
working condition. This test can reflect the comprehensive
influences on the injector caused by electrical nature, bore
variation and clogging. Sprayability test is to inspect the
spraying performance by observing the injectors.
Installing and testing procedures for
top-supply injectors
1) Choose the fuel distributor stopper (4) from the
coupler box and mount a proper O-ring on it.
Remember to apply a little lubricating grease on the
O-ring. Mount the fuel distributor stopper (4) onto the
top-supply fuel distributor.
2) Mount the crescent plate (3) and tighten it with a plate
bolt (1).
3) Choose a proper adaptor (5) according to the injector
type and mount it to the corresponding coupler under
the top-supply fuel distributor.
4) Install the injectors in forward direction (Apply a little
lubricating grease on the O-ring.)
5) Install the top-supply 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. 05.
6) Connect the injector pulse signal wire.
7) Before doing this test, press [Drain] button to drain the
test liquid from the measuring cup if there is any.
8) Choose [Uniformity/Sprayability test] on the control
panel, set corresponding parameters (consult the
appendix for pressure setting, consult vehicle
manuals for other parameters as needed), and then
press [Run] button to start the test. (The equipment
can be switched between [uniformity test] and
[sprayability test] by pressing [Drain] key when it is
running.)
9) When the test is completed, the equipment will auto
stop with the ring of the buzzer.
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