Kubota WSM F2880 Workshop Manual page 45

F2880, F3680, RCK72-F36, RCK72R-F36, RCK60-F36, RCK60R-F36, WSM
Flush Cooling System and Changing Coolant (Continued)
Anti-Freeze
It is not recommended to use plain water as coolant. water
freazes at 0 °C (32 °F) ambient temperature. If coolant freezes in
the engine, it will damage the engine block, head and radiator.
1. There are two types of anti-freeze available ; use the permanent
type (PT) for this engine.
2. Before adding anti-freeze for the first time, clean the radiator
interior by pouring fresh water and draining it a few times.
3. The procedure for mixing of water and anti-freeze differs
according to the make of the anti-freeze and the ambient
temperature, basically it should be referred to SAE J1034, more
specifically also to SAE J814c.
4. Mix the anti-freeze with water, and then fill the radiator.
Freezing Point
Vol % Anti-
freeze °C
40 -24
50 -37
* At 101kPa (760 mmHg) Pressure (atmospheric). A higher boiling point is obtained
by using a radiator pressure cap which permits the development of pressure within
the cooling system.
NOTE
• The above data
necessitate a minimum glycol content in the concentrated
anti-freeze.
• When the coolant level drops due to evaporation, add water
only. In case of leakage, add anti-freeze and water in the
specified mixing ratio.
• Anti-freeze absorbs moisture. Keep unused anti-freeze in a
tightly sealed container.
• Do not use radiator cleaning agents when anti-freeze has
been added to the coolant. (Anti-freeze contains an anti-
corrosive agent, which will react with the radiator cleaning
agent forming sludge which will affect the engine parts.)
G-32
Boiling Point*
°F °C
-12 106
-34 108
represent industry standards
G GENERAL
°F
222
226
that
W1050214
KiSC issued 04, 2006 A