BELARUS-1221.2/1221V.2/1221.3 Scheduled maintenance
279
Overall maintenance
Operation 55. Adjust oil pressure in the
engine lubricating system
If the oil pressure in the lubrication system
of a warmed-up engine at a rated
crankshaft speed is below 0.28 MPa (2.8
kgf/cm²), stop the engine and correct the
fault. Check tightness of the oil lines and
serviceability of the relief valve in the oil
filter. One way to increase the pressure is
adjustment of the relief valve, paper oil filter
in a special shop.
Operation 56. Adjust the relief valve of
the gearbox centrifuge
The valve (2) maintains an oil pressure in
the system of 0.9 to 1.0 MPa (9 to 10
kgf/cm²).
If the pressure drops below the specified
limit, adjust the valve (2) by installing
additional washers (5) between the spring
(3) and the plug (6).
IMPORTANT!
If the pressure drops
below 0.7 MPa (7.0 kgf/cm²), stop the
tractor and contact a technician.
The valve (7) maintains an oil pressure
before the rotor of the centrifuge. It must be
0.75 MPa (7.5 kgf/cm²).
The lubrication valve (12) is set for a
pressure of 0.2 ± 0.05 MPa (2.0 ± 0.5
kgf/cm²) and maintains the oil pressure in
the GB lubricating system. Adjust the
valves with the washers (9) and (11).
Содержание 1221.2
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Страница 291: ...BELARUS 1221 2 1221В 2 1221 3 Supplement 294 Variants of tractor connections ...
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