TESTING PROCEDURES
CODE AEB765i
Connect the product to testing wiring no. 1.
Check that any tester switch is set to OFF, that the knobs are all rotated in counter-clockwise direction
and that the rotating INDICATOR is set to R.
Once the product has been connected, set the commutator to GAS.
Set the switch +12 V Batt. to ON.
Set the switch +12 V Sc to ON. On the commutator, the RED LED GASOLINE and the LED RESERVE of
the indicator turn on, while the YELLOW LED blinks.
On the tester, the RED LED OUT BENZ. and the GREEN LED SERVICE (Sensor Power Supply) turn on.
Set the switch of the product to GASOLINE and then again to GAS. (Emergency).
The YELLOW LED on the commutator stops blinking and remains still.
Set the switch RPM to ON.
On the commutator the RED LED GASOLINE turns off, while on the tester the RED LED OUT BENZ.
turns off and the GREEN LED OUT GAS turns on.
(Simulation of the switching to GAS in an Emergency condition).
By setting the INDICATOR switch from R to 4/4 and vice versa, you can test the correct operation of
the indicator.
Set the switch of the commutator to GASOLINE.
Only the RED LED GASOLINE on the commutator and the RED LED OUT BENZ. on the tester turn on,
while the LEDs relating to GAS turn off.
Set the switch of the product to GAS.
On the commutator the indicator turns on and the YELLOW LED starts blinking by indicating that the
commutator is currently running with GASOLINE but is waiting to switch to the GAS running.
Rotate the knob RPM slowly in clockwise direction (increase of the engine RPM) up to the moment in
which the YELLOW LED remains still.
Rotate the knob RPM slowly in counter-clockwise direction (decrease of the engine RPM) by simulating
a deceleration.
On the commutator the RED LED GASOLINE turns off, while on the tester the RED LED OUT BENZ.
turns off and the GREEN LED OUT GAS turns on.
Set the switch RPM to OFF.
On the tester the GREEN LED OUT GAS turns off and the RED LED OUT BENZ. turns on, while on the
commutator the RED LED GASOLINE turns on.
Set the switches to OFF.
By changing the position of the trimmer on the commutator you can change the number of revolutions
for the switching to GAS.
38 - 64
IsCOL4 Rev. 250902-0