Belarus
МТЗ-80.1/82.1/82Р — Руководство по эксплу-
атации и регулировки
Раздел 6. Правила эксплуатации и регулировки МТЗ-
80.1/82.1/82Р — Руководство по эксплуатации
60
Hints on Draft Control Operation
While ploughing, in cases when the
depth attained is insufficient, reset the
compression link (1) of the hitch linkage
to the middle hole II of the hitch point
yoke (2) (see Fig. 26).
When in general cultivation and deep
loosening on soils of variable density
over the bout length or the working width,
in cases wherein the work is accompa-
nied by increased number of automatic
corrections of cultivator position, also,
reset the compression link to the middle
hole to reduce the number of corrections
When in the draft control mode, both in
ploughing and cultivation, adjust the
speed correction rate valve hand-wheel
(2) (see Fig. 24). Turning the hand-wheel
clockwise reduces the correction rate,
while rotating it counterclockwise in-
creases the rate.
Hand-wheel adjustment should be car-
ried out following the plough (cultivator)
adjustment. In doing so, when rotating
the rate valve hand-wheel, try to achieve
smooth automatic adjustment of change
in depth while still on the run.
DO NOT push the hand-wheel against
the stop, since this will result in exces-
sively slow lifting of the agricultural im-
plement/machine and give rise to in-
creased spin-out of the tractor driving
wheels.
Correction rate hand-wheel adjustment and
the choice of holes in the hitch height
bracket for attachment of the compression
link should be performed taking account of
the actual soil conditions and for each type
of the agricultural machinery attached. In
operation, readjustment is not necessary.
Fig. 26
I, II, III
— upper, middle, and lower holes, respec-
tively.
Position Control
When in the position control mode, the
draft (position) control mechanism of the
hydraulic system attains placing of the
agricultural implements/machines to a
desired position with respect to the trac-
tor framing and automatic maintaining of
the same, by settings of the handle (1)
(see Fig. 25).
It is recommended to employ the position
control in soil treatment, running with
ploughs, cultivators for general and inter-
row cultivation, as well as for hoeing in
depth, on fields with even profile.
As for broad-gang machines ganged-up
with the tractor, when operating in the
position control mode, it is necessary to
use ground-engaging wheels to eliminate
possible cross-scewness of the farm im-
plements, to improve straightness of
running the aggregate, as well as to es-
tablish better field contour-following in
the lateral (with respect to tractor move-
ment) direction.
