control can be used on Cummins engines is 30 mph
(48 km/h).
WARNING
Do not activate the fifth wheel air slider control
valve when the vehicle is in motion. Doing so could
result in damage to the fifth wheel member, kingpin,
cab, or trailer, and ultimately, to the drivetrain. A
guard is positioned around the switch to prevent it
from being accidentally activated.
CAUTION
Do not attempt to shift gears without using the
clutch pedal when the cruise control is engaged.
Failure to follow this precaution will result in a tem-
porarily uncontrolled increase in engine speed;
transmission damage and gear stripping could re-
sult.
1. To cruise at a particular speed:
1.1 Flip the ON/OFF switch to ON.
1.2 Hold the throttle down until the speedometer
reaches the desired speed.
1.3 Momentarily move the SET/RESUME switch
to SET.
2. To disengage the cruise control:
2.1 Depress the foot brake, trailer brake, clutch
pedal,
or
2.2 Flip the ON/OFF switch to OFF.
To resume a preselected cruise speed, momentarily
move the SET/RESUME switch to RESUME. Cruise will
return to the last speed selected.
Cruise speed can be adjusted up or down by holding
the SET/RESUME switch at SET (accelerate) or at RE-
SUME (decelerate) until the desired speed is reached.
NOTE: The resume vehicle speed memory is not
maintained if the cruise control ON/OFF switch is
turned OFF, or if the ignition is shut off.
Power Takeoff (PTO) Governor
Cummins electronic engines may be equipped with a
PTO governor. The PTO mode is activated by the ON/
OFF and SET/RESUME switches.
1. Engage the PTO as follows:
1.1 Flip the ON/OFF switch to ON.
1.2 Hold the throttle pedal down until the ta-
chometer reaches the desired engine speed.
1.3 Momentarily move the SET/RESUME switch
to SET.
Engines
4.7
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