８
closed state. Uniformity test can be done at this state. When DRAIN icon is pressed, solenoid
valve will drain oil.
b)
The system pressure can be adjusted by pressing
◄
or
►
key at testing.
c)
During operating, the user can select parameter, such as RPM or PW, and then press
◄
or
►
key
to achieve the status of the simulation.
d)
Good injectors may have identical injecting angle, uniform spraying but no jet. Otherwise, replace
the injector.
e)
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.
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.
Procedures (Installation refer to Uniformity/ Sprayability Test):
1) Before doing leakage test, please press
DRAIN
icon to drain the rudimental residual test liquid from the
measuring cup.
2) Select
Leakage Test
function and press
ENTER
key to run.
At this time the system pressure can be adjusted by pressing
◄
or
►
key to observe dribbling from the
injector the pressure is adjusted preferably 10% higher than manufacturer’s specifications.
3) When the test is over, the equipment will automatically stop and the buzzer will ring simultaneously.
Note:
In general the drip of the injector should be less than 1 drop within 1 minute (or in accordance with the
specifications). The default time of the system is 1 minute.
Injecting Volume Test
Injecting volume test is to check if the injecting flow in 15 seconds meets the specifications for injecting amount.
The deviation reflects the wear or clogging in the injector, instead of electrical parameter variation.
Procedures (Installation refer to Uniformity / Sprayability Test):
1) Before this test, press
DRAIN
icon to drain the test liquid from the measuring cup if there is any.
2) Choose
Injecting Volume Test
function and press
ENTER
key to start the test.
Adjust the fuel pressure by pressing
◄
or
►
key according to the injector specification.
3) When the test is over, the equipment will stop automatically at the ring of the buzzer.
iSmartINC 605 Injector Cleaner & Tester
