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6.7 Auto. Test
Auto. test contains all above-mentioned tests
(15-second injecting test, idle speed, middle
speed, high speed, varying acceleration, var-
ying deceleration, changing pulse width test).
This function can test more comprehensive
performance of injectors by simulating the va-
rious engine working conditions.
Procedures (Installation refer to Uniformity /
Sprayability Test):
1) Before the test, press DRAIN icon to drain all
the test liquid in the measuring cups if there is
any.
2) Select AUTO function and then press ENTER
key to start the test.
3) Adjust the fuel pressure by pressing < or >
keys.
4) When the test is over, the equipment will
auto stop at the ring of the buzzer.
6.8 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 combus-
tion can easily adhere to the injectors, inlet
and outlet ports, inlet and outlet hoses, thrott-
le and combustion chamber. So the fuel supply
system, combustion chamber and injector of
the engine must be cleaned on a timely basis.
Combustion Chamber cleaning is a solution
that can save your time and labor.
Procedures:
1) Please check if there is test liquid or deter-
gent inside the fuel tank before On-vehicle
cleaning. If test liquid is in the tank, replace it
with detergent.
2) Blend the detergent with the fuel at a cer-
tain ratio, and fill the mixture into the fuel tank.
3) The connection of engine fuel pipes has
been shown in "Connecting" below.
4) Select On-vehicle cleaning function, and
set the cleaning time.
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REF.54392
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