Belarus 80.1 Operation Manual page 111

On the 2 nd stage of the range speed reduction unit rotation from intermediate shaft
32 to secondary shaft 6 transmits with deceleration lower, than on the 1
There is no neutral position of drive gear of the 1
in the range speed reduction unit of the GB, for this reason 1
gaged in the range speed reduction unit.
To engage 1
GB control lever 9 (figure 3.3.2) in right most position – position of the step-down gears
and reverse movement gears. Further to engage the 1
the operator shifts GB control lever 9 forward. In this case gear lever 4, acting on the slider
st
of the fork of the 1
Sliding gear of the 1
driven gear of the 4
mits to GB intermediate shaft 32 through gears 5, 25, 25 (figure 3.3.2), 26 and 27 (figure
3.3.1).
To engage the 1
lever 9 (figure 3.3.2) in position of step-down gears and reverse movement gears back-
wards. In this case gear lever 4 (figure 3.3.2), acting on slider of the fork of the 1
reverse movement gear, shifts fork 20 forward. Sliding gear of the 1
movement 26 controlled by fork 20 engages with intermediate gear of reverse movement
15, which is in constant mesh with smaller gear ring of double-crown gear of the 5
th
8 gear 28 (figure 3.3.1). On reverse movement power flow in GB transmits to GB inter-
mediate shaft 32 through gears 5, 25, 25 (figure 3.3.2), 26, 15 and 28 (figure 3.3.1).
To engage 3
3.3.2) in position of these gears. Further to engage the 3
control lever 9 in the position of the indicated gears backwards. In this case gear lever 4,
acting on the slider of the fork of the 3
rd th
of the 3 and 6 gears 5 (figure 3.3.1), which is controlled by fork 21, engages with driven
rd
gear of the 3 and 6
to GB intermediate shaft 32.
To engage the 9
from the position of the 3
the slider of the fork of the 3
3 rd and 6 th gears 5, which is controlled by fork 21, engages with inner gear ring of second-
ary shaft 6, grippingly engaging primary 34a and secondary 6 shafts. On the 9
gear power flow passes the GB without transformation.
Engagement of the 9
speed reduction unit engaged. This will allow to avoid the increased level of noise in the
nd
GB, as on the 2 stage of the speed reduction unit the frequency of the shaft 32 idle rota-
tion is lower, than on the 1
To engage the 4
3.3.2) in the position of these gears. Further to engage the 4
shifts GB control lever 9 in the positions of the indicated gears forward. In this case gear
lever 4, acting on the slider of the fork of the 4
gears block of the 4
Smaller gear ring of block 1 meshes with driven gear of the 4
of the formed engagement power flow transmits from primary shaft 34a on GB intermedi-
ate shaft 32.
st nd
or 2 gear of the forward or reverse movement the operator shifts
gear and reverse movement transmission, shifts fork 20 backwards.
st
gear and reverse movement 26 controlled by fork 20 engages with
th th
and the 7 gears 27 (figure 3.3.1), and power flow in the GB trans-
st and 2 nd gears of reverse movement the operator shifts GB control
rd th th
and 6 or 9 gears the operator shifts GB control lever 9 (figure
rd
th
gears 26. By means of the formed engagement power flow transmits
th (direct) gear the operator shifts GB control lever (figure 3.3.2)
rd (6 th ) and 9 th
rd and 6 th gears, shifts fork 21 backwards. Sliding gear of the
th
(direct) gear should be carried out with the 2
st
stage.
th th th th
(7 ) or 5 (8 ) gears the operator shifts GB control lever 9 (figure
th th
and 5 gears 1 (figure 3.3.1), which is controlled by it, backwards.
st stage of speed reduction unit 24
st
or the 2
rd
(6
th
and 6 gears, shifts fork 21 forward. Sliding gear
gears forward. In this case gear lever 4, acting of
th th
and 5 gears, shifts fork 12 and drive
111
80-0000010B OM
st stage.
st nd
or 2 stage is always en-
nd
forward movement gear
st
st gear and of reverse
th
) gear the operator shifts GB
nd
stage of the
th th
and 7 gears the operator
th th
and 7 gears 27. By means
gear and
th
and
th (direct)