Recommended Rear Power Take-Off Shafts; Activating Rear Power Take-Off - Valtra T144 Operator's Manual

T series
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3.17.2.1

Recommended rear power take-off shafts

Both power take-off (PTO) nominal speeds can be used regardless of the type of
shaft installed on the tractor.
Implements for 540 rpm (at engine speed of approximately 1890 rpm)
Normally a 6-spline shaft (optional) with a diameter of 35 mm is recommended.
The ISO norm does not limit the power of a 540-rpm 6-spline PTO shaft with a
diameter of 35 mm.
IMPORTANT: For power over 67 hp (50 kW), use a 1000-rpm output to ensure
the durability of the PTO shafts.
Implements for 1000 rpm (at engine speed of approximately 1900 rpm)
Normally a 21-spline shaft (optional) with a diameter of 35 mm is recommended.
Heavy use
Normally a 20-spline shaft with a diameter of 45 mm is recommended. If
necessary, a torque-limiting clutch with the maximum torque of 1000 Nm should
be used.
3.17.2.2

Activating rear power take-off

Before you can start the rear power take-off (PTO), you have to activate one of
the rear PTO speed ranges available in your tractor.
IMPORTANT: Do not exceed the maximum PTO speed of the implement defined
by the implement manufacturer.
GUID-0D31E500-E360-4863-B5FE-DB5B63CF763F
1. Speed control knob for rear PTO
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3. Operation
1

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