Direction Switch D or R
CPC model All CPC4 CPC3Evo
Key Position ON with Engine Idling Ignition OFF Ignition OFF
Brake Position Parking brake ON Parking brake OFF
Parking brake ON or
OFF
Parking brake ON or OFF
Gear Display
Flashing N (short
duration)
Flashing N (long
duration)
— Shift into neutral
Warning Buzzer
Short duration
activation
Short duration
activation
— Long duration activation
Gear Position
Neutral, when the
buzzer sounds
Neutral, when the
buzzer sounds
In gear or neutral In gear or neutral
Table 14.3, Direction Switch D or R
Eaton
™
Automated
Transmissions
Eaton automated transmissions use a multi-function
stalk switch, shown in
Fig. 14.1, or a push-button
shift selector to select mode, direction, neutral, low,
and to make manual shifts. To know what gear the
transmission is in, see the driver display. Forward
shifts can be made either manually or automatically.
Multi-Function Stalk Switch
Automatic Mode (A)
In automatic drive mode, upshifts and downshifts are
made by the transmission without driver intervention.
Use the mode switch on the shift control to select the
automatic mode (A). Rotate the D/N/R switch to
Drive (D), and press down on the throttle pedal. The
transmission will shift automatically.
NOTE: If attempting to select a non-Neutral
mode without applying the service brakes, the
transmission will not shift into gear. To shift into
gear, select Neutral, apply the service brakes,
and select the desired mode again.
In Drive, the start gear is automatically selected. The
selected start gear can vary depending on several
vehicle inputs such as load, grade, and axle/
transmission ratio. The start gear can be changed
using the shift control, provided the selected gear
would allow the vehicle to launch without damaging
the transmission. If the start gear is changed using
the shift control, it will be the default until the vehicle
is powered down or the selection is changed again
manually.
IMPORTANT: Prior to ascending a steep grade,
either reduce the default start gear by one
(using the shift control) or apply full throttle for
the duration of the grade so the vehicle
maintains the proper engine and vehicle speed
during the entire grade.
In Drive, the transmission automatically performs
upshifts and downshifts. However, when the
transmission is near the shift point, the shift can be
forced using the upshift or downshift function of the
shift control.
NOTE: The transmission may deny a shift while
ascending or descending a grade if the load of
the vehicle and grade of the terrain in
combination with the drivetrain ratio and engine
torque fall outside of the acceptable range to
perform a shift. If the shift is denied, a tone will
sound.
Manual Mode (M)
In manual mode, the driver requests upshifts and
downshifts instead of letting the Eaton transmission
select them automatically. Manual shifting may be
helpful when traversing a work site, railroad tracks,
or steep grades, for example.
Use the mode switch on the shift control to select the
manual mode (M). To drive forward, rotate the D/N/R
switch to Drive (D), and press down on the throttle
pedal. To shift up, pull the lever up (towards you); to
shift down, push the lever down (away from you).
The system holds the current gear unless a shift is
requested or if the system initiates a manual mode
override.
NOTE: The transmission may deny a shift while
ascending or descending a grade if the load of
the vehicle and grade of the terrain in
combination with the drivetrain ratio and engine
Automated and Automatic Transmissions
14.8
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