44
tighten up the locknut, connect the spring. The adjustment is
over, if the throttle is fully closed with the pedal released, and
the throttle is fully open with the pedal pressed all the way down.
If required, lubricate the cables of the throttle and choke
manual control with grease. To do that, remove them from the
automobile and remove the old grease.
Maintenance of the Engine Cooling System
The engine cooling system (Fig. 32) is filled with coolant
simultaneously with the heating system.
Low-freezing fluid ÎÆ-40 "Ëåíà" or ÒÎÑÎË-À40Ì is used
as a coolant.
At ambient air temperatures below - 40 °C , fill the system
with low-freezing fluid ÎÆ-65 "Ëåíà" or ÒÎÑÎË-À65Ì.
If the above-mentioned grades of coolant are not available,
You may use other coolant recommended by the automobile
dealer.
Fig. 32. Engine cooling system:
1 -heater cock; 2 -passenger compartment heater radiator; 3 -cylinder block head;
4 -gasket; 5 -coolant channels between cylinders; 6 -two-valve thermostat; 7 -
coolant temperature gauge transmitter; 8 -exhaust manifold; 9 -filler neck; 10 -
shutter; 11 -plug; 12 -expansion tank; 13 -cab heater radiator; 14 -"min" mark;
15 -heating system drain cock; 16 -thermostat body; 17 -pump; 18 -impeller;
19 -connection pipe; 20 -fan; 21 -radiator; 22 -radiator drain cock; 23 -inlet
manifold; 24 -cylinder block; 25 -cylinder block drain cock
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