Instruments
Standard instruments are present on every vehicle.
Optional instruments, typically located on the auxil-
iary dash panel or right-hand control panel, are not
found on every vehicle. Instruments are listed here in
alphabetical order to make the information easier to
find.
Air Intake Restriction Gauge
The air intake restriction gauge indicates the vacuum
on the engine side of the air cleaner. On standard
installations, it is mounted on the air cleaner. As an
option for easier viewing, an air intake restriction indi-
cator (see
Fig. 2.17
) can be mounted on the auxiliary
dash panel.
NOTE: Rain or snow can wet the filter element
and cause a temporary high reading.
Air intake restriction vacuum is measured in inches
of water (inH
2
O). For vehicles equipped with a
graduated indicator or a restriction gauge on the
dash, check the gauge with the engine off. If the yel-
low signal stays locked in the red zone once the en-
gine is shut down, or is at or above the values
shown in
Table 2.2
, the air cleaner element needs to
be replaced.
Air Intake Maximum Restriction Values: (inH
2
O)
Engine Make
Pre-EPA07
Engines
EPA07 Engines
Caterpillar
25
—
Cummins
25
25
Detroit
™
20
22
Mercedes-Benz
22
22
Table 2.2, Air Intake Maximum Restriction Values
Vehicles may be equipped with a go/no-go restriction
indicator without graduations (see
Fig. 2.18
) instead
of a graduated indicator.
If air restriction exceeds the maximum allowable
value, operate the vehicle for one more day, making
sure not to run the engine over rated rpm. Refer to
R =RESET (PUSH RESET/SET KEY TWICE)
=SET (PUSH RESET/SET KEY ONCE)
S
01/29/98
f040326a
To trip information
See applicable Figure.
VEHICLE
INFORMATION
S
S
S
S
PUSH SET KEY TO
CHANGE LANGUAGE
LANGUAGE ENGLISH
FRENCH SPANISH
UNITS
ENGLISH METRIC
PUSH SET KEY TO
CHANGE UNITS
SETUP
INFORMATION
DATA LINK ACTIVE
DATA LINK STATUS
USAGE 40% ERROR 6%
DASH #
SW#
A06−XXXXX−XXX
7.3.9
CURRENT UNITS
IS FLASHING
CURRENT LANGUAGE
IS FLASHING
S
S
PUSH SET KEY TO
CHANGE BRIGHTNESS
S
S
PUSH SET KEY TO
CHANGE TARGET MPG
TARGET MPG 7.0
DISPLAY BRIGHTNESS
<−−LESS
MORE−−>
<−−LIGHT
DARK−−>
See
applicable
Figure.
Fig. 2.15, ICU2M Setup Information and Vehicle Information
Instruments and Controls Identification
2.14