Kubota MX5100 Workshop Manual page 57

MX5100, WSM
Flushing Cooling System and Changing Coolant (Continued)
Anti-Freeze
CAUTION
• When using antifreeze, put on some protection such as
rubber gloves (Antifreeze contains poison.).
• If should drink antifreeze, throw up at once and take medical
attention.
• When antifreeze comes in contact with the skin or clothing,
wash it off immediately.
• Do not mix different types of Antifreeze.
The mixture can produce chemical reaction causing harmful
substances.
• Antifreeze is extremely flammable and explosive under
certain conditions. Keep fire and children away from
antifreeze.
• When draining fluids from the engine, place some container
underneath the engine body.
• Do not pour waste onto the grounds, down a drain, or into
any water source.
• Also, observe the relevant environmental protection
regulations when disposing of antifreeze.
If it freezes, coolant can damage the cylinders and radiator. If the
ambient temperature falls below 0 °C (32 °F) or before a long-term
storage, let out cooling water completely, or mix fresh water with
long-life coolant and fill the radiator and reserve tank with the
mixture.
1. Long-life coolant (hereafter LLC) comes in several types. Use
ethylene glycol (EG) type for this engine.
2. Before employing LLC-mixed cooling water, fill the radiator with
fresh water and empty it again.
Repeat this procedure 2 or 3 times to clean up the inside.
3. Mixing the LLC
Put the LLC in cooling water in the percentage (%) for a target
temperature. When mixing, stir it up well, and then fill into the
radiator.
4. The procedure for the mixing of water and antifreeze differs
according to the make of the antifreeze and the ambient
temperature. Refer to SAE J1034 standard, more specifically
also to SAE J814c.
IMPORTANT
• When the antifreeze is mixed with water, the antifreeze
mixing ratio must be less than 50%.
Freezing Point
Vol % Anti-
freeze
°C
40 -24
50 -37
* At 1.013 x 1000000 Pa (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.
G-39
G GENERAL
Boiling Point*
°F °C
-12 106
-34 108
°F
222
226
W10385910