freightliner 108SD, Driver Manual

Page: 70 / 192

Engine Starting
This engine chapter is to serve as a guide for best
practices only. Each make and model engine may
have operating characteristics that are unique to that
particular engine, and will be documented in the en-
gine manufacturer’s literature. Always refer to specific
instructions and recommendations from the engine
manufacturer.
NOTE: Before starting the engine, read Chap-
ter 4 for detailed information on how to read the
instruments and see Chapter 5 for detailed in-
formation on how to operate the controls. Read
the operating instructions in the manufacturer’s
engine operation manual before starting the
engine.
WARNING
Never pour fuel or other flammable liquid into the
air inlet opening in the air intake in an attempt to
start the vehicle. This could result in a flash fire
causing serious personal injury or property
damage.
1. Before engine start-up, complete the engine pre-
trip and post-trip inspections and maintenance
procedures in
Chapter 20 and Chapter 21 .
2. Set the parking brake.
3. For manual transmissions, place the transmis-
sion in neutral and fully depress the clutch pedal.
Do not depress the accelerator pedal.
For automatic transmissions, put the transmis-
sion in neutral. Do depress the accelerator pedal.
NOTICE
If the warning lights stay on, or do not come on
momentarily after turning on the ignition, do not
operate the engine. To do so may result in engine
damage.
4. Turn the ignition switch to the ON position. See
Fig. 9.1 . Electronic gauges on the instrumenta-
tion control unit (ICU) will complete a full sweep
of their dials, the warning and indicator lamps will
illuminate, and the buzzer will sound for three
seconds.
During cold conditions, the WAIT TO START
lamp may illuminate on vehicles with Cummins
engines. Wait until the lamp goes out before
turning the ignition key to START.
NOTE: The length of time the WAIT TO START
lamp remains illuminated depends on the ambi-
ent temperature. The lower the ambient tem-
perature, the longer the lamp will be illuminated.
NOTE: The engine electronics supply the cor-
rect amount of fuel for starting the engine. Ac-
celerator pedal pressure is unnecessary, and
could interfere with engine starting.
5. Turn the ignition key to the START position. Do
not depress the accelerator pedal.
Release the key the moment the engine starts.
6. Apply load gradually during the warm-up period.
NOTICE
Do not rev the engine if the oil pressure gauge
indicates no oil pressure. Shut down the engine
within approximately ten seconds to avoid engine
damage.
7. Check the oil pressure gauge for any drop in lu-
bricating oil pressure or mechanical malfunction
in the lubricating oil system.
Cold-Weather Starting
See the engine manufacturer’s operation manual for
starting aids that are approved for specific engines.
07/19/2006 f610805
Fig. 9.1, Ignition Switch
Engine Starting, Operation, and Shutdown
9.1