LAUNCH CNC-603A Injector Cleaner & Tester User Manual
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cleaning agent should be some 20mm above the needle valve of the injector);
3
）
Connect the pulse signal lines with injectors properly;
4
）
Select [Ultrasonic cleaning] on the main interface and set the time according to the demand (the default time
is 600s), as shown in Figure 5.11. Press [Run] button and the operation interface is shown in Figure 5.12.
Figure 5.11 Figure 5.12
5
）
The system will step automatically when the cleaning ends.
6
）
Take the injectors out of the cleaning tank and wipe off the cleaning agent on them with a soft cloth to
prepare for the next operation.
Note:
1)
It is strictly forbidden to open the ultrasonic system under the circumstances that cleaning agent has not
been added into the ultrasonic cleaning pool. Otherwise, the ultrasonic equipment may be damaged easily.
2)
It is strictly prohibited to immerse the pulse signal line connector along with the injector into the
ultrasonic pool for cleaning. Otherwise, the pulse signal line connector can be damaged easily.
5.6. On-Vehicle Cleaning
After the engine has been in operation for a period of time, its fuel flow may be blocked or become un-smooth
owing to buildup of dust and impurities in fuel channel. In addition, the carbon deposits and gum made by
combustion can easily adhere to the injectors, inlet and outlet ports, inlet and outlet hoses, throttle and
combustion chamber. So the fuel supply system, combustion chamber and injectors of the engine must be
cleaned on a timely basis. On-vehicle cleaning is a solution that can save your time and labor.
5.6.1 Procedures
1)
Please check if the liquid inside the fuel tank is test solution or detergent before performing on-vehicle
cleaning. If test solution is in the tank, it is necessary to replace it with detergent. Drain the test solution
inside fuel tank into a pre-prepared container. If the drained test solution contains lots of impurities and
cannot be reused, please dispose it in a proper way and then add a small amount of test solution to clean the
fuel tank. If the drained test solution is relatively clean, please store it for later use.
2)
Blend the detergent with the fuel at a certain ratio, and fill the mixture into the fuel tank. (Consult the user’s
manual of detergent for blending ratio.) Refer to the following table for filling amount:
No. of cylinders
6 cylinders
Amount
about 1500ml
3)
Connect the pipeline of CNC-603A Injector Cleaner & Tester with that of the vehicle. For details, see “5.6.2
Line Connection”.
4)
As shown in the following figures: Choose [On-vehicle cleaning] function on main menu, set the time, press
[Run] button and then start the engine for cleaning. Refer to the technical requirements of various vehicle
models to adjust the pressure via [decrease pressure] and [increase pressure] keys. Press [Stop] button at any
time to stop the cleaning.
