iSmartINC 402 Injector Cleaner & Tester User’s Manual
4
Operating Procedures
Preparation
1) Remove the injector from the vehicle engine to check
the o-ring inside the injector for damage. Replace the
damaged O-ring with another one of the same type to
avoid leakage during testing. Put the outside of
injectors in gasoline or cleanser, and wipe them with
soft cloth after cleaning the outside oil sludge carefully.
2) Check the liquid level and refill test liquid when
necessary. Fill the test liquid through the filler on the
side of the unit and observe the liquid level in the fuel
level viewer. In most cases, filled the liquid up to 1/2 of
the tank capacity.
3) Turn on the power switch on the right of the .
4) Fill ultrasonic cleanser into the ultrasonic cleaning
chamber so that the needle valve of the injector is
covered by the cleanser.
5) Connect the injectors with the right couplers.
Note:
Test liquid and cleanser are provided together with the
unit. The test liquid is used for uniformity/sprayability
test, leakage test, injecting flow test and auto. test.
The mixture of fuel and cleanser is used in on-vehicle
cleaning. The ultrasonic cleaning uses special
ultrasonic cleanser (or test liquid and cleanser that
comes with by the unit).
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 ultrasonic cleanser to its original bottle
and then wipe the ultrasonic cleaner with soft cloth.
Clean the iSmartINC 402 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
iSmartINC 402 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 on the launder.
3) Add enough ultrasonic cleanser into ultrasonic
cleaner so that the liquid level is about 20mm above
the needle valve.
4) Plug the injector pulse signal wires to injectors
respectively.
5) Turn on the power switch of the ultrasonic cleaner.
6) 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
to start cleaning.
7) When the time is up, iSmartINC 402 will stop
automatically as the beeper rings.
8)
Turn off 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 difference of
the 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.
Note:
top-supply injector use top-supply fuel distributor,
side-supply injector use fuel distributor.
