freightliner S2 Operator's Manual page 33

•
The Set/Resume Switch—this three-position
paddle switch bears the legend RES/ACC
above the paddle and SET/CST below the
paddle.
1.
To cruise at a particular speed, do these steps:
1.1 Press the upper half of the On/Off rocker
switch on the instrument panel.
1.2 Hold the accelerator pedal down until the
speedometer reaches the desired speed.
1.3
Momentarily lower the Set/Resume switch
paddle.
2. To disengage the cruise control, do these steps:
2.1 Depress the brake pedal (on automatic or
manual transmission) or
Depress the clutch pedal (on manual
transmission only)
2.2 Press the lower half of the On/Off rocker
switch on the instrument panel.
3. To resume a preselected cruise speed, do these
steps:
3.1
If the On/Off rocker switch on the instru-
ment panel is off, turn it on.
3.2 Momentarily raise the paddle of the Set/
Resume switch to RES/ACC. Cruise will
return to the last speed selected.
NOTE: If the ignition is shut off, the speed
memory will be lost.
4. To adjust cruise speed up, raise the paddle of
the Set/Resume switch to RES/ACC and hold it
there until the vehicle accelerates to the new
speed, as desired.
5. To adjust the cruise speed down, lower the
paddle of the Set/Resume switch to SET/CST
and hold it there until the vehicle decelerates to
the new speed, as desired.
NOTE: For more information about cruise con-
trol operation, see the engine manufacturer's
service manual.
Fast Idle System
If the vehicle is equipped with this option, it is avail-
able for use only with cruise control. There are three
preset speeds available: 800, 900, or 1000 rpm.
The fast idle system can be used to increase engine
idle speed whenever the following conditions are
met.
•
The brake pedal is not pressed.
•
The vehicle must not be moving and the
throttle must not be pressed.
Fast Idle Operation
1. To enable the fast idle system, press and release
the cruise control On/Off rocker switch.
2.
For the preset fast idle, press and release the
cruise control set switch. This will set the preset
fast idle speed.
IMPORTANT: The fast idle system does not
have any type of light activation in the instru-
ment panel. The only light that will be illumi-
nated is the cruise indicator.
Any of the following actions will turn off the fast idle
system:
•
Applying the brake.
•
Moving the transmission shifter out of Park (P)
or Neutral (N); this will engage the transmis-
sion.
•
Pressing and releasing the cruise control On/
Off rocker switch when it is on.
Exhaust Brake Switch
An exhaust brake is an optional auxiliary braking sys-
tem that assists, but does not replace the service
brake system. The exhaust brake is controlled by a
dash-mounted rocker switch to help slow the vehicle
when the accelerator is released.
To turn the exhaust brake on, press the upper part of
the rocker switch. The exhaust brake turns off auto-
matically. See Fig. 4.13.
Transmission Controls
If so equipped, the transmission range control valve
and splitter valve are attached to the gearshift knob.
Transmission shift pattern labels are located inside
the cab. See Chapter 10
operating instructions.
Vehicles equipped with a standard Allison On-
Highway Series automatic transmission, have a
T-handle shift selector. See
Controls
for complete transmission
Fig. 4.14.
4.6