Section G. Maintenance
Belarus – 90/92 Operating manual
103
Operation 45. Advance angle of
fuel injection
Adjusting advance angle of fuel
pump injection should be within 19° -
21° till UDC (D-243).
Advance angle should be checked and
adjusted in specialized workshop of the
dealer.
• Check if radiator core is clean. If
necessary, wash the radiator and blow
off the core with compressed air
(blowing direction – from the engine
side).
ATTENTION!
Radiator clogging,
insufficient tension of the fan belt,
contamination inside cooling system may
lead to engine overheating and failure.
IMPOTANT!
Adjustment of fuel
equipment by tractor operator
(owner) is considered as grounds for
cancellation of manufacturer’s
warranty obligations.
Operation 46. Adjusting of the fuel pump
on stand
Fuel pump should be adjusted by dealer
in specialized workshop using special
equipment.
Operation 47. Washing engine cooling
system.
To wash the system use solution of 50-60
grams of soda ash per one liter of water.
Observe the following order of washing:
• Fill radiator with two liters of
kerosene and fill the system with
prepared solution;
• Start the engine and let it operate for
8-10 hours, then drain solution and rinse
the cooling system with pure water;
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