LAUNCH Injector Cleaner & Tester User’s Manual
7
the system pressure will come back to the default
pressure value When the function of item section is
working).
7)
When the cleaning is over, Injector Cleaner & Tester
will automatically stop at the ring of the buzzer.
Note:
♦
The system pressure can be adjusted by
pressing [decrease pressure]/[increase
pressure] key when performing reverse flush.
♦
It is advisable to press [Drain] key to avoid
spillover of test liquid during reverse flush.
Fig. 07
1-Plate bolt; 2-Crescent plate; 3-Fuel distributor stopper;
4-Reverse adaptor; 5-Injector; 6-Knurled nut; 7-Adjustable
screw; 8-Riffle screw; 9,10,11-O-ring; 12-Fuel distributor;
13-O-ring; 14-Couplers.
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 (For installation refer to
Uniformity/ Sprayability Test
):
1)
Before doing leakage test, please press [Drain]
button to drain the rudimental residual test liquid
from the measuring cup.
2)
Select [Leakage test] mode on the control panel.
Press [run] key, the machine will work. At this time
the system pressure can be adjusted by pressing
[decrease pressure]/[increase pressure] key to
observe dribbling from the injector the pressure is
adjusted preferably 10% higher than manufacturer’s
specifications(Injector Cleaner & Tester can switch
between leakage test
by pressing [Drain] key
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).
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 Flow Test
Injecting flow 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
(For installation refer to
Uniformity / Sprayability Test
):
1)
Before this test, press [Drain] button to drain the
test liquid from the measuring cup if there is any.
2)
Choose [Injecting flow test] mode on the control
panel, and press [Run] button to start the test.
Adjust the fuel pressure by pressing [decrease
pressure]/[increase pressure] key according to the
injector specification(Injector Cleaner & Tester can
switch
between injecting flow test
by pressing
[Drain] key 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).
3)
When the test is over, Injector Cleaner & Tester will
stop automatically at the ring of the buzzer.
Auto. Test
Auto. test contains all above-mentioned tests (15-second
injecting test, idle speed, middle speed, high speed,
varying acceleration, varying deceleration, changing
pulse width test). This function can test more
comprehensive performance of injectors by simulating
the various engine working conditions.
Procedures
(For installation refer to
Uniformity / Sprayability Test
):
1)
Before the test, press [Drain] button to drain all the
test liquid in the measuring cups if there is any.
2)
Select [Auto. test] mode on the control panel and
set up the pressure value according to the injector
specifications, select the test mode (mode 1, 2, or 3
are all available), and then press [Run] button to
start the test.
3)
Adjust the fuel pressure by pressing [decrease
pressure]/[increase pressure] key when testing or
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)..
4)
When the test is over, Injector Cleaner & Tester will
auto stop at the ring of the buzzer.
What’s the Model?
There are three Models in the Auto. test function
Model I Model II & Model III, Model I & Model II shown
in the flow chart below, the Model III equal to the
Model I add the Model II.