Rear Lift Linkage; General Information; Turnbuckle - Belarus 1822.3 Operator's Manual

3.17 Rear lift linkage

3.17.1 General information

The rear lift linkage is used for coupling mounted and semi mounted agricultural im-
plements to the tractor. The agricultural implements are attached to the tractor in three
points: to lower link pivots and to top link or with a help of automatic coupler. On rear axle
tubes brackets 11 are mounted (figures 3.17.1), on which two hydraulic cylinders 4 are
mounted with a help of pins 10. Cylinder rods are connected with external levers 3 (left
and right) by means of pins 3a. The external levers 2 are mounted on a shaft 2 that is in-
stalled in the rear axle cover 1, with their splined openings. The levers 3 are connected
with lower links 7 by means of arms 5.
The lower links are mounted in brackets 14 (right and left) with their front pivots on
special pins 13, which are draft control sensors.
The brackets 12 are fixed on side faces of the rear axle under the tube flanges. The
lower links have eyelets 8, on which turnbuckles 9 are mounted with their forked part by
means of pins. The turnbuckles limit cross travel of lower links in operating and transport
positions.
1 – rear axle cover; 2 – turn shaft; 3 – external levers (left and right);
lic cylinder rod pins; 4 – hydraulic cylinders; 5 – arms; 6 – top link; 7 – lower links; 8 –
eyelets; 9 – turnbuckles; 10 – pins; 11 – brackets; 12 – turnbuckle brackets; 13 – pins (po-
sition sensors); 14 – brackets.

3.17.2 Turnbuckle

The turnbuckles 9 (figure 3.17.1) are attached to the eyelets 8 of the lower links 7 with
their one end. The other end of the turnbuckle with a pivot is installed in the turnbuckle
brackets 12. The turnbuckle brackets12 are fastened on a bottom part of the rear axle tubes.
The turnbuckle consist of a screw 1 (figure 3.17.2), a guide 2, a slide piece 4 and a
linch pin 3.
The guide 2 has a through groove on its side face and a through opening at a plane
perpendicular to it.
The slide piece 4 has two through openings in one plane.
The turnbuckles have to be adjusted with agricultural machine, mounted on rear ends
of lower links and put down on its supporting surface.
The setup "turnbuckle locked" shall be carried out in the following order:
- match the hole for the linch pin 3 in the guide 2 with the hole in slide piece 4;
- in case of mismatch turn the guide 2 clockwise or contraclockwise till the holes
match;
- put the linch pin 3 in the hole and secure with a spring clip.
Figure 3.17.1 – Rear lift linkage
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