Connecting Machines And Tools To External Hydraulic Circuit - Zetor MAJOR CL Operator's Manual

Connecting machines and tools to External hydraulic circuit

Connecting double-acting roller
Connect double-acting roller always to quick-couplers of one section.
Connecting machines and tools assembled from more parts
When working with agricultural machines which are assembled from more parts (combiners, shears,
harrows), in which side frames are jointly connected to a central frame, tilted to vertical position by separate
hydraulic rollers in transport, controlled by tractor external hydraulic circuit, it is advisable to connect lifting
branches of rollers to quick-couplers (2) or (4), which are equipped with a reverse valve.
Connecting rotation hydro engine
If there is a rotation hydro engine connected to external hydraulic outlet, it is necessary to connect its reverse
branch, always to a quick-coupler (0).
Connecting reversing rotation hydro engine
Reversing rotation hydro engine must be for function connected to quick-couplers of one section. When
connecting hydro engines, securing valves need to be included in both branches, which reliably restrict
pressure peaks with machine run-out. Waste from these valves is connected to a quick-coupler (0).
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.
Control of the front 3-point hitch
The hitch is equipped with two single-acting hydraulic
cylinders, into which the oil is supplied from the auxiliary
hydraulic distributor. The lifting and lowering is performed
by the control lever (a) of the auxiliary distributor.
position 1 lifting
position 2 lowering
position N hitch locking
position P do not use it
If the tractor is equipped with the front three-point hinge, the lever (a) is used for its control.
The quick couplers must not be connected when the front three-point hinge is used because they are
pressed together with the front three-point hinge!
After work with the front three-point hinge, the arms of the front three-point hinge must be lifted to
the transport position and the lever of the cock of the front three-point hinge must be moved to the
'closed' position.
HYDRAULIC SYSTEM
75
NM13N019