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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 fluid dry out on the skin; wash it off with soap
and warm water;
- flush the spilled fluid with water, air the room;
- remove clothing contaminated with the fluid, 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.
At the ambient air temperature -40°C use the low freeze point
fluid TOSOL-A40M, OG-40 Lena or OG-40 TOSOL-TC.
The cooling fluid operating temperature shall be within
80°-110°C. Short-time (maximum of 5 minutes) engine run is
allowed at cooling fluid temperature up to 120°C.
When the cooling fluid overheat warning lamp turns on, you
must immediately identify and eliminate the cause of overheating.
Fig. 9.4. Engine crankcase of ventilation:
1 — receiver; 2 — ventilation tube connects depression valve to receiver;
3 — depression valve; 4 — valve cap; 5 — oil reflector; 6 — Blow-By Gas flow;
7 — Blow-By Gas separated oil drain orifice; 8 — depression valve orifice;
9 — Engine injection system air supply tube with reverse valve.
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