2022.3-0000010 OM
193
During operation of wide-cut implements in order to facilitate crossover contour fol-
lowing (planting cultivator and etc.,) and reduction of load on the RLL, free movement in
vertical plane of one lower link relative to another is to be ensured. To achieve this you
have to adjust the lifting rods in order to make one lower link move freely in vertical plane
relative to another. Such an adjustment is made by exchange of pins, mounted on the fork
as set forth in subsection 3.17.3 “Lifting rod”. RLL is controlled by RLL control panel located
in the cabin and via the remote buttons on rear wheels panel ensuring positioning of lower
links of rear LL at the required height. Operator chooses the way to adjust the position of
the rear lift linkage in manual mode by turning the lever of adjustment on the control panel
of RLL. Remote RLL control buttons allow the operator to maintain prompt control of RLL
during coupling of assembly unit.
Electronic system for the rear lift linkage control provides the following performance
capabilities for RLL:
- adjustment of lower links lifting and lowering speed;
- limiting of lower links rising height;
- choice of the required way of adjustment of lower links positions;
- adjustment of soil processing depth;
- possibility to work with implements with depth control of operated parts movements
(depth adjustment is carried out by an implement support wheel).
Note – Rules on RLL control are specified in subsection 2.15 “Lift linkage control”.
RLL control system provides for the following ways of adjustment of mounted and
semimounted implements and their operated parts:
1 For the implements and units having no support wheels:
- draft control (depth adjustment is carried out according to link resistance of the implement);
- position control (the implement is hold in the predetermined position in relation to
the tractor frame);
- mixed control (draft with position control in any combination);
2 For the implements and units, having support wheels:
- mixed type (draft with position control in any combination).
Figure 5.3.1 – Rear lift linkage diagramm of “LL-3” type
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