Specifications

STARTING AND OPERATING THE VEHICLE
– 88 – Y53-6008A
Medium Duty (R05/09)
CAUTION: The use of a winterfront can result
in excessive engine coolant, oil, and charge
air (intake) temperatures, which can lead to
overheating and possible engine damage. If
you must use a winterfront
• Refer to the “Engine Operation and Mainte-
nance Manual” for operating restrictions
and recommendations.
• Use only a winterfront available from your
Peterbilt dealer that is compatible with a
2002 EPA-compliant engine cooling system.
These winterfronts are specifically designed
for use with new grill snap patterns.
Starting Procedure — Normal Temperatures
Use the following procedure to start your Medium Duty
when outside temperatures are at or ABOVE normal start-
ing temperatures. Check the Engine Operation and Main-
tenance Manual for starting temperatures.
1. Set the parking brake.
NOTE: When any one of the following is true, oil
should be applied to the turbocharger oil inlet
port: (1) if the engine has not been started for
more than 25 days; or (2), the outside tempera-
ture is very cold; or (3), the oil filter has been
changed.
•With an oil can, squirt approximately one-half
cup (120 ml) of clean, specified engine oil into
the turbocharger oil inlet port. This will keep the
turbocharger bearings lubricated until the
engine oil pressure gets up to normal.
2. Insert key into the ignition switch.
3. Disable (or turn OFF) the following systems prior to
starting the engine: the exhaust brake, the dual-speed
rear axle (put in LOW), and block heater (if equipped).
4. Disengage the transmission: place the shift lever in
the Neutral position.
5. Disengage (depress) the clutch (with manual trans-
mission).
6. Turn the ignition switch to the IGN & ACC position. For
normal temperatures, no accelerator advance is nec-
essary. See “Use of Accelerator” below. If the “WAIT