The various elements are assembled according to the following plan :
3- RECOMMENDATIONS FOR SETTINGS AND USE
The drawbar should be adjusted so that the chassis of the trailer is
horizontal.
However, some cylinder movement must be possible to absorb dynamic
impacts ( 3cm)
2 modes of operation are possible :
The operator predefines once and for all its coupling height. In this case he
may leave the supply hoses unconnected on the tractor. It should be noted
that the drawbar works in closed circuit; that is to say that when loading the
spreader, the spreader will sink down, when you start tipping, the cylinders will
again be deployed and no correction will be possible.
This method is strongly discouraged despite a possible saving of a
distributor on the tractor.
Or the user leaves the hoses permanently connected to the tractor. This will
allow an instant correction of the height of the drawbar to compensate for the
movement of the cylinders due to the load variation in the vehicle.
Such use is the "normal" use of the system.
By working this way we obtain the maximum suspension flexibility.
N.B : 2 adjustments are possible at the upper catch of the cylinder. The
method for changing the catch is identical to that of the sprung drawbar (see
page 28)
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