By default, Creep Mode can be activated while in
Manual Mode or Low. Eaton’s ServiceRanger diag-
nostic software can be used to enable Creep Mode
in Automatic Mode and/or Reverse.
Engaging Creep Mode
To engage Creep Mode:
1.
Select Low or Manual Mode and the desired
gear (while stopped or moving).
2.
Apply the accelerator pedal to accelerate the ve-
hicle until the clutch is closed (engaged).
3.
Release the accelerator pedal. The vehicle will
continue moving at governed low engine idle
speed.
Exiting Creep Mode
To exit Creep Mode, apply the accelerator pedal to
accelerate temporarily, or select a higher gear in
Manual Mode. (Creep Mode can be resumed in the
selected gear by releasing the accelerator pedal.)
NOTE: The transmission will exit Creep Mode if
the engine lugs 150 rpm below the governed
low engine idle speed. In this case, a lower gear
should be selected if available.
Hill Start Aid
UltraShift PLUS transmissions are equipped with a
Hill Start Aid (HSA) feature to prevent the vehicle
from rolling while on grades steeper than 3% and
allow for a controlled launch. A grade sensor is used
to determine when to engage the feature.
HSA is "on" by default. It can be turned off by press-
ing and releasing the override switch on the dash
(see
Chapter 5). HSA will turn back on after the first
successful launch.
When the vehicle is stopped on a grade greater than
3% and in a forward mode or reverse, depress the
service brakes then release them. The vehicle will
begin to move after 3 seconds, and the clutch will
perform partial engagements to slow the vehicle mo-
tion. Either step on the brake or apply the throttle to
continue negotiating the grade.
Engine Overspeed Protection
The system will upshift if necessary to prevent en-
gine overspeed in Drive, Manual, and Low.
Shuttle Shifting
Shuttle shifting from reverse to any forward mode is
only allowed if the vehicle speed is approximately
zero.
Auto Start Gear Selection and
Override
The UltraShift PLUS system uses various inputs to
automatically select the best start gear in Drive and
Manual. This selection can be changed using the
SmartShift control; however, if the selection re-
quested could cause damage or engine lugging, the
request will be denied and a tone will sound.
Skip Shifting
When appropriate, the UltraShift PLUS system may
skip shift in Drive. When prevailing conditions like
load and grade allow, skip shifts can be performed in
Manual mode using the SmartShift control.
Auto Neutral
The UltraShift PLUS system will automatically shift to
neutral if the vehicle is left in Drive and the parking
brake is set. "AN" will show on the gear display. To
re-engage the transmission, select Neutral and then
either Drive or Reverse on the shift control (it will re-
engage regardless of whether the parking brake is
released).
Automatic Traction Control
The UltraShift PLUS system requires the Automatic
Traction Control (ATC) option to be enabled when
driving in soft soil/sand to prevent wheel slippage
and shifting issues. The ATC system has two modes:
"normal" (for sand and loose road surface) and a
mud/snow setting.
ATC Normal Mode
In normal mode, the system will engage the brakes
on the wheel or side that the wheel slip is occurring
to help the vehicle gain traction. The point at which
the traction control will actuate the braking system
increases with throttle: low throttle allows the system
to brake the wheels earlier; heavy/full throttle raises
the point of the acceptable wheel slip.
Adhere to the following points when driving in ATC
normal mode:
Automated Transmissions
15.9
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