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MAINTENANCE PROCEDURE
Antifreeze is flammable, so keep it away from flame.
Antifreeze is toxic. When removing the drain plug, be careful not to get water containing antifreeze on
you. If it gets in your eyes, flush your eyes with large amount of fresh water and see a doctor at once.
Use antifreeze and appropriate water for diluting. (for details, see "COOLANT AND WATER FOR DILUTION (4-
5)")
We recommend use of an antifreeze density gauge to control the mixing proportions.
Prepare a container whose capacity is larger than the specified coolant volume to catch drained coolant.
Prepare a hose to supply antifreeze coolant and water.
1. Stop the engine, close valve (1) on corrosion resistor (2).
(Machines equipped with corrosion resistor)
2. Remove the cover and turn radiator cooling water filler cap
(3) slowly to take it off.
3. Open drain valves (6) and (7) to drain cooling water.
4. Remove covers (4) and (5), and place a container to
receive antifreeze- mixed cooling water under drain valve
(6) located in the lower part of the radiator and also under
engine cooling water drain valve (7) located in the upper
part of the engine oil pan.
5. After draining the antifreeze solution, close drain valve (6),
(7), then fill with clean water. After the radiator is filled with
water, start and run the engine at low idling speed. After
the water temperature rises above 90°C (194°F), run the
engine for about 10 minutes.
6. Stop the engine and open drain valves (6) and (7) to drain
the water.
7. After draining the water, clean the radiator with detergent.
When carrying out the flushing operation, follow the
instructions given with the flushing agent.
4-26
WARNING
MAINTENANCE
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