Ignition Switch; Engine Fan Switch - freightliner Columbia Driver Manual

Instruments and Controls Identification
06/04/2012
Fig. 2.23, Engine Brake Switch
loss of vehicle control, possibly resulting in per-
sonal injury or property damage.
NOTICE
When the cruise control is engaged, do not at-
tempt to shift gears without using the clutch
pedal. Failure to follow this precaution will result
in a temporarily uncontrolled increase in engine
speed. Transmission damage and gear stripping
could result.
Cruise control is activated by two dash-mounted
switches: an On/Off switch and a Set/Decelerate/
Resume/Accelerate switch. See
1
04/24/2012
1. Set/Decelerate/Resume/Accelerate Switch
2. Cruise Control On/Off Switch
Fig. 2.24, Cruise Control Switches
Cruise At a Set Speed
1. Press the upper part of the cruise control On/Off
switch to turn cruise control on.
2. Hold the accelerator pedal down until the speed-
ometer reaches the desired speed.
2.23
f611176
Fig. 2.24.
2
f611181
3. Press the lower half of the Set/Resume/
Accelerate/Decelerate switch momentarily to set
the cruise speed (with the vehicle moving at the
desired speed).
To decrease cruise speed, press and hold the
lower half of the Set/Resume/Accelerate/
Decelerate switch to decelerate slowly. Release
the switch when the desired speed is achieved.
To increase cruise speed, press and hold the
upper half of the Set/Resume/Accelerate/
Decelerate switch to accelerate slowly. Release
the switch when the desired speed is achieved.
Disengage Cruise Control
NOTE: The speed memory is lost whenever the
ignition is turned off or the cruise control system
is turned off.
1. Depress the brake pedal (automatic or manual
transmissions)
or
Depress the clutch pedal (manual transmissions
only).
2. Press the lower half of the On/Off switch.
NOTE: To resume the preselected cruise speed,
increase vehicle speed to above minimum
cruise control speed and momentarily press the
upper half of the Set/Resume/Accelerate/
Decelerate switch. Cruise will return to the last
speed selected.

Engine Fan Switch

To turn the engine fan on, press the upper half of the
engine fan switch. See
tinue to operate for a set amount of time and then
turn off unless the coolant temperature is high
enough to continue fan operation. To turn the fan off
before the set time period ends, press the lower half
of the switch.

Ignition Switch

The ignition switch has four positions: OFF, ACC (ac-
cessory), ON, and START. The ignition key also
locks and unlocks the cab doors, baggage door(s),
and if equipped, the bunk door(s).
Fig. 2.25. The fan will con-