Section G. Maintenance
Belarus – 90/92 Operating manual
104
General maintenance
Operation 48. Adjusting drain valve of engine
centrifugal oil filter
If during engine operation in nominal
conditions and at normal temperature
(80...100°
С
) oil pressure drops below 0.1
MPa, shut down the engine and correct the
defect.
One of the methods to raise pressure is
adjustment of drain valve of the centrifuge.
To this end remove threaded plug (not
shown), and adjust oil pressure by
screwing the adjusting screw (1) into the
body with a screwdriver. If this method will
not correct the defect refer to the deal.
Seasonal maintenance
Combine seasonal maintenance with regular maintenance operations
Substance of works
During transition to autumn-winter season (with
settled average daily temperature below + 5°
С
)
During transition to spring-summer season (with
settled average daily temperature above + 5 °
С
)
Change summer oil grades for winter grades (see
lubrication table):
In engine casing
In the case of hydraulic assemblies and HS.
In the transmission case
In FDA case
In steering booster casing
In reduction gear casings of FDA rear axle-drives
In intermediate bearing of FDA drive
Change grease in front wheel hubs
Change grease in steering joints
Fill the engine cooling system with antifreeze fluid,
having in advance washed the cooling system
Remove cardan shafts and check flange tightness
on the shafts of transfer gear in axial direction,
intermediate bearing tightness and axle drive gear
tightness (for the tractors with FDA). Adjust axial
plays by nuts tightening.
Change winter oil grades for summer grades
In engine casing
In the case of hydraulic assemblies and HS.
In the transmission case
In FDA case
In reduction gear casings of FDA rear axle-drives
In intermediate bearing of FDA drive
In steering booster casing
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