Valtra T144 Operator's Manual page 208

3. Operation
1
GUID-9C52E8CD-1973-4193-87D3-0FB5A42ECF73
1. Rear PTO on/off push button
Sigma Power
In models T144 H, T154 H and T174e H, the Sigma Power control system is
extra equipment.
The Sigma Power control system gives extra power for PTO work. When required
for PTO work, the engine will automatically provide up to 30 hp more power.
The Sigma Power activates automatically when the power transferred through the
PTO rises high enough. As a sign of this, the Sigma Power symbol is lit on the
instrument panel.
20
20
5 25
30
40
5
0 30
50
0
1
GUID-9809D3B6-D6A7-4EEC-8B06-5FE72FAB6429
1. Sigma Power symbol
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