19 PERIODIC SERVICE ENGLISH B Cleaning the radiator (inside) 1. Clean up the coolant line inside in the following cases. A As per the SERVICE INTERVALS list. A When changing the coolant. 2. Use a radiator cleaning agent . This helps wash away scale deposits. *At 1.013 x 10 Pa (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. B Anti-freeze 5. Adding the LLC (1) Add only water if the coolant level reduces in the cooling system by evaporation. (2) If there is a coolant leak, add the LLC of the same manufacturer and type in the same coolant percentage.
*Never add any long-life coolant of different manufacturer. (Different brands may have different additive components, and the engine may fail to perform as specified.) 6. When the LLC is mixed, do not employ any radiator cleaning agent. The LLC contains anti-corrosive agent. If mixed with the cleaning agent, sludge may build up, adversely affecting the engine parts. 7. Kubota's genuine long-life coolant has a service life of 2 years. Be sure to change the coolant every 2 years. To avoid personal injury: A When using anti-freeze, put on some protection such as rubber gloves (Anti-freeze contains poison.). A If should drink anti-freeze, throw up at once and take medical attention.
A When anti-freeze comes in contact with the skin or clothing, wash it off immediately. A Do not mix different types of anti- freeze. The mixture can produce chemical reaction causing harmful substances. A Anti-freeze is extremely flammable and explosive under certain conditions. Keep fire and children away from anti-freeze. A When draining fluids from the engine, place some container underneath the engine body. A Do not pour waste onto the grounds, down a drain, or into any water source. A Also, observe the relevant environmental protection regulations when disposing of anti- freeze.
A The above data represent industry standards that necessitate minimum glycol content in the concentrated anti-freeze. Always use a 50/50 mix of long-life coolant and clean soft water in KUBOTA engines. Contact KUBOTA concerning coolant for extreme conditions. 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, flush the radiator with fresh water. Repeat this procedure 2 or 3 times to clean up the radiator and engine block from inside. 3. Mixing the LLC Premix 50% LLC with 50% clean soft water. When mixing, stir it up well, and then fill into the radiator. 4.
The procedure for the mixing of water and anti-freeze differs according to the make of the anti-freeze. Refer to SAE J1034 standard, more specifically also to SAE J814c. Vol % Anti-freeze Freezing Point Boiling Point * 50 -37 -34 108 226