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Pronar T286
SECTION 3
out in order to level the trailer and is done by withdrawing or extending the hydraulic cylinders
rods (2). The system includes the hydraulic accumulator (3) which is preset for pressure of 50
bar. The purpose of the accumulator is to amortize vibrations transferred to the tractor.
FIGURE 3.15
Design and diagram of the drawbar's hydraulic system
(1) quick coupler - plug, (2) hydraulic cylinder, (3) hydraulic accumulator, (4) hydraulic lock,
(5) manometer
The system is protected by means of hydraulic lock. In the event of damage to hydraulic
system conduits (rupture, loss of tightness), the hydraulic lock will lock the cylinder in a fixed
position. Thanks to the use of the hydraulic lock, the supply conduits can be connected
without a cut-off valve.
3.20
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