Section G. Maintenance
Belarus – 90/92 Operating manual
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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