2022.3-0000010 OM
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6.4.8.2 Operation 79. Adjustment of GB driven centrifuge valves
Adjusting valve of the transmission hydraulic system operating pressure 2 maintains
oil pressure in the transmission hydraulic system within the range 0.9 to 1.1 MPa. In case
pressure falls below the specified limit, it is required to adjust valve 2 by means of installa-
tion of auxiliary washers 5 (figure 6.4.52) between spring 3 and plug 6.
Valve 7 maintains oil pressure before the centrifuge rotor. It shall be from 0.77 to
0.83 MPa and can be adjusted by means of installation of washers 9. Lubrication valve 12
is adjusted for pressure from 0.2 to 0.25 MPa and maintains oil pressure in the GB lubri-
cating system. Valve adjustment can be performed by means of washers 11.
To increase pressure, it is required to increase the number of washers, to reduce
pressure - decrease the number of washers.
1 – GB driven centrifuge; 2 – adjusting valve of the transmission hydraulic system
operating pressure; 3 – spring; 4 – housing; 5 – washer; 6 – plug; 7 – rotor valve; 8 –
spring; 9 – washer; 10 – spring; 11 – washer; 12 – lubrication valve.
Figure 6.4.52 – Adjustment of GB driven centrifuge valves
ATTENTION: IF PRESSURE FALLS BELOW 0.7 MPA, STOP THE TRACTOR AND
CORRECT THE FAILURE IN THE TRANSMISSION HYDRAULIC SYSTEM!
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