Proportional Ground Speed Power Take-Off - Valtra HiTech T3 Series Operator's Manual

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3. Operation
To activate the PTO automatic stop, press the symbol side of the rear PTO
automatic stop switch down to the AUTO position.
The PTO disengages when the linkage is raised into the transport position
and the 3 second delay time has passed. The PTO does not re-engage even
though the linkage is lowered.
NOTE: Start the power take-off (PTO) after an automatic stop.
GUID-135DF10F-1DC4-4E6B-A81C-6FF0F38FCCCD
1. Switch for rear PTO
You can restart the PTO by pressing the symbol side of the PTO switch to
the start position.
To deactivate the PTO automatic stop, press down the side of the rear PTO
automatic stop switch opposite to the symbol.
3.17.2.8

Proportional ground speed power take-off

The proportional ground speed power take-off (PTO) is alternative equipment.
The proportional ground speed PTO is primarily used in the low range (M) area.
The proportional ground speed PTO is designed for the highest torque values of
the low range (M) area. In the high range (H) area, the transmission shaft rotates
faster, and therefore, the ground speed PTO must be disconnected. The faster
rotating speed may damage the propeller shaft between tractor and implement.
The trailer should be equipped with a means of disconnecting the drive from the
trailer.
Before using a trailer with a powered axle, make sure that the drive is compatible
with the PTO of the tractor. The speed of the trailer should be 0-3% lower than
driving speed of the tractor.
For heavy proportional use it is recommended to use the 1¾" (45 mm) shaft.
You can engage the ground speed PTO by moving the control lever to the
position.
IMPORTANT: Do not engage the ground speed PTO when the tractor is moving.
1
CAUTION: When using the proportional ground speed power take-off
(PTO), the speed of the PTO shaft varies according to the
transmission speed of the tractor. When the tractor is reversed, the
PTO shaft also rotates in the reverse direction.
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