freightliner Run Smart ARGOSY, Driver Manual

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•
200 to 260°F (93 to 126°C) for Detroit and
Cummins engines
•
177 to 203°F (81 to 95°C) for Mercedes-Benz
engines
Under heavy loads, such as when climbing steep
grades, temperatures that exceed the normal oil tem-
perature range for a short period are not unusual. If
the temperature returns to normal when the load de-
creases, there is no problem.
Fuel Gauge
The fuel gauge indicates the level of fuel in the fuel
tank(s). A single fuel gauge is standard. If equipped
with an optional second fuel tank, each fuel tank
level is indicated on a separate gauge.
Primary and Secondary Air Pressure
Gauges
WARNING
If air pressure falls below minimum pressure, the
braking ability of the vehicle will be limited. Slow
the vehicle down and bring it to a gradual stop.
Do not attempt to move the vehicle until air pres-
sure has risen above the minimum level. Moving
a vehicle without adequate braking power could
cause an accident resulting in property damage,
personal injury, or death.
Air pressure gauges register the pressure in the pri-
mary and secondary air systems. Normal pressure,
with the engine running, is 100 to 120 psi (689 to
827 kPa) in both systems.
A low-air-pressure warning light and audible alert,
connected to both the primary and secondary sys-
tems, activate when air pressure in either system
drops below 64 to 76 psi (441 to 524 kPa).
When the engine is started, the warning light and
audible warning remain on until air pressure in both
systems exceeds minimum pressure.
Speedometer
Two speedometer options are available. The U.S.
version of the speedometer registers speed in both
miles per hour (mph) and kilometers per hour (km/h),
with mph in larger numbers. The metric version of
the speedometer face reverses this arrangement,
with km/h in larger numbers.
Tachometer
The tachometer indicates engine speed in revolutions
per minute (rpm) and serves as a guide for shifting
the transmission and keeping the engine in the ap-
propriate rpm range. For low idle and rated rpm, see
the engine identification plate.
Transmission Fluid Temperature
Gauge
The transmission fluid temperature gauge indicates
the transmission lubricant operating temperature.
Temperatures vary by application, but the transmis-
sion fluid temperature gauge reading should not ex-
ceed 250°F (121°C).
NOTICE
A sudden increase in transmission fluid tempera-
ture that is not caused by a load increase may
indicate mechanical failure. Bring the vehicle to a
safe stop and investigate the cause to prevent
further damage. Do not operate the vehicle until
the cause has been determined and corrected.
Under heavy loads, such as when climbing steep
grades, temperatures that exceed the normal oil tem-
perature range for a short period are not unusual. If
the temperature returns to normal when the load de-
creases, there is no problem.
Turbocharger Boost Pressure Gauge
A turbocharger boost pressure gauge indicates the
pressure in the intake manifold, in excess of atmos-
pheric pressure, being created by the turbocharger.
Voltmeter
The voltmeter indicates the vehicle charging system
voltage when the engine is running and the battery
voltage when the engine is off. By monitoring the
voltmeter, the driver can stay aware of potential bat-
tery charging problems and have them fixed before
the batteries discharge enough to create starting diffi-
culties. Argosy vehicles are equipped with either a
voltmeter gauge, or a digital voltmeter readout lo-
cated on the bottom line of the dash message center.
The voltmeter will normally show approximately 13.7
to 14.1 volts when the engine is running. The voltage
of a fully charged battery is 12.7 to 12.8 volts when
the engine is off. Battery voltage under 12.0 volts is
Instruments
4.9