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HYDRAULIC SYSTEM
Connecting machines and implements to the outer hydraulic circuit
Auxiliary machines using oil filling of external hydraulic circuit must be filled with the same
kind of oil, which is recommended for gear system of the tractor! Quick-couplers sockets of an
auxiliary machine need to be properly cleaned before connecting.
Connecting machines and implements consisting of more parts
During work with agricultural machines that consist of more parts (combinators, skids, harrows) and that
have side frames hat are hinged to the central frame and during transport are folded to the vertical position
by separate hydraulic cylinders controlled by the outer hydraulic circuit of the tractor, the folding of the side
frames must always be controlled by the upward (backward) movement of the auxiliary distributor lever. The
'lifting' branches of the cylinders must be connected to quick-couplers '1', '3' or '5'.
Connecting a rotational hydraulic motor
If a rotational hydraulic motor is connected to an outer outlet of the hydraulic system, its return branch must
always be connected to quick-coupler '0'.
Connecting a reversing hydraulic motor
A reversing rotary hydraulic motor must be connected to quick-couplers '1' and '2' for functional reasons.
However, relief valves must be inserted in both the branches in this case as they can reliably limit the
pressure peaks during the stopping of the machine. The oil return lines from these valves are connected to
quick-coupler '0'.
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