Section G. Maintenance
Belarus – 90/92 Operating manual
76
Daily maintenance (DM) after
every 10 hours of operation or
daily
Operation 1. Oil level in engine casing
Shut down the engine, wait for 15
minutes and check oil level. Oil level
should be between lower and upper
probe (3) marks. If necessary, remove
cover (2) of oil filling neck (1) and fill oil
up to the top mark of probe (3).
IMPORTANT! Do not operate engine
with oil level below lower mark of oil
gauge.
IMPORTANT! Do not fill oil above
the level of oil gauge upper mark.
Surplus oil will burn, making false
impression of large oil consumption
due to burning loss.
Operation 2. Level of cooling fluid in
engine radiator
Take off the radiator plug and check level
of cooling fluid, which should be 50-60
mm below the upper end face of filling
neck (1). If necessary, fill fluid up to
required level.
IMPORTANT! Do not allow level
recession below more than 100 mm
of the top end face of the filling neck.
WARRNING! Engine cooling system is
functioning under pressure maintained
by means of valve in the radiator plug.
It is dangerous to take off plug on hot
diesel. Let the engine cool down, cover
the plug with thick cloth, and slowly
opening the plug reduce pressure in the
system before taking off the plug
completely. Beware burns by hot fluid.
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