Four-Wheel Drive - Valtra T144 Operator's Manual

T series
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GUID-46A07AA8-B569-42A6-8CAA-0F51EBBF1CB7
1. Differential lock switch
To engage the differential lock, press down the symbol side of the differential
lock switch (ON).
To use the automatic function of the differential lock, turn the differential lock
switch to the middle position (AUTO).
The switch light is lit green.
To disengage the differential lock, press down the side of the differential lock
switch opposite to the symbol (OFF).
3.8.19

Four-wheel drive

3.8.19.1
Four-wheel drive
The four-wheel drive (4WD) has three positions: ON, AUTO and OFF. The 4WD
can be engaged while driving. When starting to drive, the driving start automatics
control the 4WD, regardless of the 4WD switch positions.
Position
ON
AUTO
OFF
The driving start automatics (activated by default) engage the 4WD in the
following situations:
1
Description
The 4WD is always engaged.
The 4WD engages if the driving start automatics are activated and one or more of the following
conditions are met:
When starting to drive.
When using the power shuttle.
When the lifting/stop/lowering switch is in the lowering position.
The 4WD disengages:
When the lifting/stop/lowering switch is pressed to the lifting or stop position.
When pressing the clutch pedal or the HiShift push button.
When the driving speed is higher than 10 km/h.
After the driving start automatics' disengagement delay.
4WD is disengaged except in the following situations:
Both brake pedals or the brake pedal of the reverse drive system are pressed at any speed.
Either left or right brake pedal is pressed when the driving speed is higher than 10 km/h.
The parking brake is engaged.
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ECO
3. Operation

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