General Maintenance Services; General Instructions; Operation 80. Adjustment Of Gb Centrifuge Valves - Belarus 1523.5 Operator's Manual

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5.4.4 General maintenance services

Carry out maintenance service operations listed in subsection 5.4.4 as may be nec-

essary (i.е. according to corresponding pressure or dirtiness sensor indications).

Valve 2 for adjustment of working pressure in the transmission hydraulic system (figure

5.4.24) maintains oil pressure in the hydraulic system within 0.9 to 1.1 MPa. In case pres-

sure in the hydraulic system transmission (acc/ to gauge 1 in figure 2.6.1) falls below the

specified limit, adjust valve 2 (figure 5.4.24) by mounting auxiliary washers 5 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 mounting washers 9. Lubrication valve 12 is adjusted for pressure

from 0.2 to 0.25 MPa and maintains oil pressure in GB lubricating system. Valve adjust-

ment 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 centrifuge; 2 – valve for adjustment of working pressure of transmission hydraulic

system; 3 – spring; 4 – housing; 5 – washer; 6 – plug; 7 – rotor valve; 8 – spring; 9 –

washer; 10 – spring; 11 – washer; 12 – lubrication valve.

ATTENTION: IF PRESSURE FALLS TO 0.7 MPA, STOP THE TRACTOR AND

ELIMINATE THE FAILURE IN THE TRANSMISSION HYDRAULIC SYSTEM!

ATTENTION: HYDRAULIC PRESSURE IN THE TRANSMISSION HYDRAULIC

SYSTEM SHALL BE ADJUSTED ONLY BY WAY OF ADJUSTING VALVE 2 (FIGURE

5.4.24). ONLY DEALERS ARE ALLOWED TO ADJUST VALVES 7 AND 12 WHEN PER-

FORMING REPAIR WORK!

Figure 5.4.24 – Adjustment of GB centrifuge valves

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1523.5-0000010 OM

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