19
Operation
Engine Over-Speed Protection
•
The transmission system will upshift if necessary to prevent engine
over-speed in Drive, MANUAL and LOW modes.
Warning:
UltraShift
PLUS
initiates upshifts from MANUAL and LOW for
engine overspeed protection. Some engines do not use the Eaton engine over-
speed protection.
Shuttle Shifting
•
Shuttle shifting from Reverse to any forward mode is only allowed if
the vehicle speed is approximately zero.
Auto Start Gear Selection
•
The transmission system uses various inputs to automatically select
the best start gear in Drive and MANUAL.
Important:
Any start gear up to the max start gear can be manually selected,
regardless of actual GCW or operating conditions. Manual selection of a start
gear that is too high for the vehicle conditions can cause damage to the drive-
train.
•
This selection can be changed using the up/down buttons, however,
if the selection requested could cause damage or engine lugging the
request will be denied and an audible tone will sound.
Skip Shifting
•
When appropriate, the transmission system may skip shift in Drive
mode.
•
Skip shifts can be performed in MANUAL by pressing the up/down
buttons providing the current conditions like load and grade allow
this condition.
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