Section G. Maintenance
Belarus – 90/92 Operating manual
79
Operation 6. Draining sediment from
fuel tanks and course fuel filter.
Open drain plugs (1) of fuel tanks (2)
and drain plug (3) of filter.
Drain sediment until pure fuel comes
out. Drain sediment in special container
and dispose it correctly.
Close drain valves after pure fuel
without water and dirt comes out.
Operation 7. Checking tension of
engine cooling system fan drive belt
Check the belt for signs of wear or
damage. Replace it, if necessary.
To check alternator belt tension apply
force of 40 N (4 kgf) in the middle of
branch between pulleys of generator and
water pump (1). The sag should be in the
range of 6…10 mm. If necessary, adjust
belt tension by turning generator casing,
having in advance loosened and then
tightened generator fastening bolts.
NOTE: By installation of usual generator
panel the belt tension shall be checked
between pulleys of generator and
crankshaft. The sag should be in the
range of 15…20 mm at force of 40 N in
the middle of branch.
Operation 8. Rear wheel hubs.
• Check tightness and, if necessary,
tighten bolts (1) fastening rear
wheels’ hubs (four bolts for each
hub) using torque wrench. Torque
should be 300…400 N/m (30…40
kgf/m).
• Check and, if necessary, torque nuts:
• Front wheels to 200...250 N/m
• Rear wheels to 300...350N/m
• Disks to rims to 180...240 N/m
40N 6…10mm
40N 15…20mm
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