Section G. Maintenance Belarus – 90/92 Operating manual
84
Maintenance No.2 (M-2) after
every 500 hours of operation
Perform operations of the previous
maintenance and the following
operations:
Operation 15. Centrifugal oil filter of
engine
• Take off nut (1) and cap (2).
• Insert a screwdriver (5) or rod between
filter casing and rotor bottom to stop
rotor (3) from rotating, and turning rotor
nut using key (4) take off rotor cup (3).
• Remove cover (6), impeller (7) and
filtering mesh (8) of rotor. If necessary,
clean and wash the mesh.
• Use non-metal scraper to remove
deposits off inside walls of rotor cup.
• Clean all parts, wash them in diesel
fuel and blow off with compressed air.
• Assembly the filter by performing
disassembly operations in the
reverse order. Before assembling
cup and rotor casing, grease sealing
«О»-ring with motor oil.
• Align balance marks on the cup and
rotor casing. Screw in cup fixing nut
with small effort until the cup fully
slides on the rotor.
• Rotor should rotate free and without
jamming.
• Reinstall cup (2) and torque nut (1) to
35...50 N m (3,5…5,0 kgf-m). .
NOTE: After engine stoppage, for 30-60
seconds noise of rotating rotor should be
audible. It means that filter functions
properly.
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