Using The Front Linkage Shut-Off Valve - Valtra T144 Operator's Manual

3. Operation
1. Start the engine and set it to low idle speed.
2. Set the valve to the kick-out mode.
3. Check the adjustment of the kick-out pressure by operating the implement.
If the valve lever returns too easily, increase the kick-out pressure. If the
valve lever does not return as intended, decrease the kick-out pressure.
4. If necessary, adjust the kick-out pressure:
Use an 1.5 mm allen key. One turn of the adjustment screw has an effect of
about 12,5 bars to the kick-out pressure.
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5. Check the adjustment of the kick-out pressure by operating the implement
with the actual working RPM.
The kick-out function may not work as desired, for example, with a reversible
plough. When the plough is being turned, the pressure may rise to the
maximum and release the kick-out function. In addition, certain implements
may produce pressure spikes and thus release the kick-out function during
the working phase.
3.14.2

Using the front linkage shut-off valve

If the front linkage (optional) is connected to the rear valves, the tractor is
equipped with a shut-off valve. With the shut-off valve you can open and close
the oil flow to the front linkage, thus enabling to connect two implements to the
same valve. The shut-off valve is located on the top of the rear valves.
To increase the kick-out pressure, rotate the adjustment screw clockwise.
To decrease the kick-out pressure, rotate the adjustment screw
counterclockwise.
WARNING: When the front linkage is being connected to the rear
valve, make sure there is no load on the front linkage or rear
implement connected to the same valve. The load on the front linkage
or rear valve implement discharges when the shut-off valve lever is
turned. This may cause the implements to move abruptly.
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