PRONAR T286, Operator'S Manual

Page: 61 / 168

SECTION 3 Pronar T286
3.21
3.2.9 HYDRAULIC STEERING SYSTEM
The hook trailer can be equipped with hydraulic steering system for controlling the rear axle
of the trailer. This solution improves steering characteristics, reduces load applied to the
trailer structural elements, reduces terrain damage and tyre wear as well as improves the
comfort of driving the tractor with the trailer.
FIGURE 3.16 Diagram of the hydraulic steering system
(1) axle steering cylinder, (2) axle turning cylinder, (3) hydraulic accumulator, (4) manometer,
(5) hydraulic valve, (6) hand pump
The rear steering axle is equipped with cylinder (2) – figure (3.16), which is connected with
double-acting cylinder (1) located next to the drawbar by means of rigid and flexible conduits
creating a closed-circuit. The system is controlled using the string located on the right side of
the drawbar. The string's ball-shaped end is connected with the tractor's hitch.
The system is filled with oil in the amount of approximately 5 litres. The reference list of oils is
included in ANNEX B to this publication.