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Engine cooling system (Fig. 9.5)
WARNING! Coolant is poisonous. Keep it in a tightly closed
container. While using it, obey the following rules:
– avoid any operations as a result of which the liquid can enter
into the mouth cavity;
– do not let the uid dry out on the skin; wash it off with soap
and warm water;
– ush the spilled uid with water, air the room;
– take off the clothes, contaminated with the uid, dry it outside
the room, and wash it.
Take due care when opening the cap of the expansion tank of
the engine cooling system to avoid a scald.
For cooling liquid, use a low temperature freeze fluid
TOSOL-A40M, OG-40 Lena or OG-40 TOSOL-TC.
Fig. 9.5. Engine cooling and heating system scheme:
1 — cabin heater radiator; 2 — heater radiator connection hoses; 3 — engine;
4 — thermostat; 5 — control unit coolant temperature sensor; 6 — expansion tank;
7 — expansion tank plug; 8 — radiator assembly; 9 — motor fan; 10 — discharge
plug; 11 — fan; 12 — fan drive; 13 — pump; 14 — crankcase discharge plug; 15 —
additional heater motor pump
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