freightliner S2 Operator's Manual page 26

•
180 to 225°F (82 to 107°C) for Cummins ISB
engines
•
177 to 203°F (81 to 95°C) for Mercedes-Benz
MBE900 engines
NOTE: Under heavy loads, such as when climb-
ing steep grades, temperatures that exceed the
normal oil temperature range for a short period
are not unusual. If the temperature returns to
normal when the load decreases, there is no
problem. See Fig. 3.19.
10/10/2001
Fig. 3.19, Engine Oil Temperature Gauge
Transmission Fluid Temperature
Gauge
During normal operation, the transmission fluid tem-
perature gauge reading should not exceed 250°F
(121°C) at the sump. See
200
F
125
10/30/2001
Fig. 3.20, Transmission Fluid Temperature Gauge
f610569
Fig. 3.20.
275
350
TRANS
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.
NOTE: Under heavy loads, such as when climb-
ing steep grades, temperatures may climb
above those given here for limited periods.
Turbocharger Boost Pressure Gauge
A turbocharger boost pressure gauge measures the
pressure in the intake manifold, in excess of atmos-
pheric pressure, being created by the turbocharger.
See Fig. 3.21.
10/10/2001
Fig. 3.21, Turbo Boost Pressure Gauge
f610600
Instruments
NOTICE
f610574
3.14