S.G
GENERALITES
I
ALLGEMEINES
68
rnrn
STROKE SERIES
WSM,
01
160
I
0203FOlS
l-
Vol
96
antifreeze
40
50
60
70
Freezing point Boiling point
"C
"F
"C
OF
-24
-1
2 106 222
-3
7
-34 108
226
-52
-62 111 232
-64
-84
114
238
Antifreeze
If
the cooling water freezes, the engine cylinder
block, cylinder head and radiator may crack.
In
cold
weather, before the temperature drops below
0°C
(32'F),
drain out the water after operating or add a
proper amount of antifreeze.
There are two types
of
antifreeze solutions:
permanent type
(PT)
and semi-permanent type
(SPT).
For the KUBOTA engines, be sure to use the
permanent type.
When antifreeze
is
used for the first time, fill and
drain clean water twice or
three
times
so
as
to
completely clean
the
inside of
the
radiator.
0
The procedure for mixing water and antifreeze
differs according to the make of the antifreeze
and
the
ambient temperature. Basically,
it
should
be refered to
SAE
J1034
standard, more specifically
also
to
SAE
J814c.
0
Mix
the antifreeze and water, then pour the
mixture into the radiator.
*At 760mmHg pressure (atmospheric).
A
higher
boiling point
is
obtained by using a radiator pressure
cap
which
permits the development of pressure
within
the cooling system,
IMPORTANT
0
When the anti-freeze
is
mixed
with
water, the
anti-freeze mixing ratio must be less than
50%.
0
Do
not use antifreeze during hot weather to keep
the engine performance since the cooling water
boiling point rises.
NOTE
0
The above data represents industrial standards
that necessitate a minimum glycol content
in
the
concentrated antifreeze.
0
When the cooling water level drops due to
evaporation, add water only.
In
case of leakage,
add antifreeze and water
in
the specified mixing
ratio.
0
Antifreeze absorbs moisture.
Keep unused
antifreeze
in
a tightly sealed container.
0
Do
not
use
radiator cleaning agents when
antifreeze has been added
to
the cooling water.
(Antifreeze contains an anticorrosive agent,
which
will
react
with
the radiator cleaning agent
forming sludge
which
will
affect the engine
parts.)
545
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