Manual
SOFTER 8 PS | SOFTER 11 PS
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CLOSING (BALL) VALVE FUNCTION
The machine SOFTER 8 PS is equipped with two closing (ball) valves on the inside the draft pole, see
Fig.8.
The machine SOFTER 11 PS is equipped with three closing (ball) valves: two on the outside and one inside
the draft pole, see Fig. 8.
The external upper ball valve is used for closing the circuit for side frame unfolding (red circuit); its use is
further described in Chapter 3.3.
The external bottom ball valve is used for closing the circuit controlling the rear roller piston-rod (including
the axle) of the central frame (yellow circuit) and the drawbar piston-rods (when there is a drawbar in the
bottom fixed hitch), its use is further described in Chapter 3.3.
The internal ball valve is used for closing the circuit controlling the piston-rods of the side rollers
(yellow circuit); this circuit must be always open in both transport and working position!!!
Fig. 8 – closing (ball) valves
USE OF THE INTERNAL CLOSING (BALL) VALVE (SOFTER 11 PS)
After a long downtime, one or both piston-rods of the central frame roller (including the axle) may
decrease. In order to draw out the piston-rods to the limit position without the collision of the side frame
rollers to transport the machine safely, it is thus necessary to close this internal ball valve.
Procedure:
1)
Close the internal ball valve – lock side rollers
2)
Open the external lower ball valve – open the circuit of the central roller
3)
Draw out the piston-rods of the central roller into the limit position (maximum) – circuit
4)
Close the external lower ball valve – lock the circuit of the central roller
5)
Open the internal ball valve – open the circuit of the side rollers
Locking/unlocking side
frame unfolding
Locking/unlocking the
roller (axle) of the central
frame
Locking/unlocking side
frame rollers (only for
SOFTER 11 PS)
