38
Fig.27. Gas Exhaust System:
1-inlet pipes; 2-auxiliary brake; 3-compensators; 4-silencer; 5-exhaust pipe
Cooling System
The engine cooling system is of liquid, closed type, with forced coolant
circulation and is designed for operation with low-freezing coolants (Fig. 28).
Fig. 28. Cooling System Diagram:
1-radiator; 2-filler with plug; 3-housing; 4-fan; 5-water return hose; 6-bypass hose to
expansion tank; 7-thermostat box; 8-expansion tank; 9- expansion tank plug; 10-drain
cock; 11-water supply pipe; 12-frame with radiator blade; a-coolant return from
compressor; b- coolant supply to compressor
At an ambient temperature down to minus 40
0
C use
ОЖ
-40 «
Лена
» coolant,
alternatively the
ТОСОЛ
-
А
-40
М
one. At 20
0
C the density of
ОЖ
-40 «
Лена
»
coolant should be 1.075-1.085 g/cm
3
and that of
ТОСОЛ
-
А
-40
М
,
1.078-1.085 g/cm
3
.
At an ambient temperature minus 40
0
C and below use
ОЖ
-65 «
Лена
» coolant,
alternatively the
ТОСОЛ
-
А
-65
М
one. At 20
0
C the density of
ОЖ
-65 «
Лена
»
coolant should be 1.085-1.100 g/cm
3
and that of
ТОСОЛ
-
А
-65
М
,
1.085-1.095 g/cm
3
.
