7-4
Copyright 2017 Cummins Inc.
EXTERNAL/INTERNAL ALARM PANELS
The following paragraphs describe the operation of
the external/internal alarm panel components.
Overfill Indicator/Horn/Silence Button
The overfill alarm Indicates that the fuel has
reached an abnormally high level (95%). Immedi-
ately stop adding fuel. It also indicates a possible
failure of the “pump-off” float gauge for fuel systems
that contain the fuel transfer pump.
The horn can be turned off by pressing the mute but-
ton. The indicator will turn off when the fuel level
drops to normal.
Fuel Gauge
Indicates the amount of fuel that is contained in the
sub-base tank.
Test Button
Press the TEST switch to test the indicator light and
the horn. The test will remain active for as long as
the button is pressed.
HORN
SILENCE
BUTTON
OVERFILL
INDICATOR/
TEST BUTTON
HORN
FUEL
GAUGE
EXTERNAL ALARM PANEL
INTERNAL ALARM PANEL
HORN SILENCE/
TEST BUTTON
HORN
FIGURE 7-3. EXTERNAL AND INTERNAL ALARM PANELS
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