Maeda CC1485S-1, Инструкции по эксплуатации, Страница: 258 / 370

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[4] CLEANING ENGINE COOLING SYSTEM
• Coolant temperature remains high immediately after stopping the engine and the
pressure is accumulated in the radiator. Removing the cap in this stage for
discharging water may cause burns. Allow it to cool down, and then slowly turn the
cap to relieve the pressure.
• Start the engine for cleaning. Before standing up from the operator's seat or leaving it,
set the lock lever to LOCK.
• While cleaning the inside of cooling system, the engine is kept running, and thus it is
dangerous to say in the rear of the engine. While running the engine never enter the
rear section of the machine.
Cooling system cleaning and coolant replacement should conform to the cycles specified in the
following table.
Coolant type Cooling system cleaning and antifreeze replacement
Coolant LLC
Every 2 years (in fall) or every 4000 hours, whichever falls
first
Stop the machine on a level place and perform cooling system cleaning and antifreeze
replacement.
While the mixing proportion of coolant varies with temperature, a volumetric proportion of 30%
as a minimum is required.
Even in areas where antifreezing is not needed, use the coolant at a minimum proportion of 30%
to prevent corrosion of cooling system.
The mixing proportion between water and the coolant is to be determined with respect to past
minimum temperatures, in accordance with “Table of Mixing Proportion of water and undiluted
coolant” shown below. For actual mixing, set temperature approx. 10 degrees lower than
minimum temperature.
Freezing temperature of 100% coolant as supplied is -15°C. Be cautious of not storing the
undiluted coolant below -15°C.
[Table of Mixing Proportion of water and undiluted coolant]
Min. temperature
(°C)
Mixed quantity (L)
-10 or more -15 -20 -25 -30
Coolant quantity 3.6 4.2 4.8 5.4 6.0
Water amount 8.4 7.8 7.2 6.6 6.0
Volumetric proportion
(%)
30 35 40 45 50
• Since the undiluted coolant is flammable, be cautious of fire.
• The coolant is toxic. When opening the drain valve, be cautious not to be exposed to
splashes of the coolant solution. If it gets in the eyes, immediately wash your face with
clean water and see a doctor for treatment.
• The disposal of cooling water added with the coolant discharged when replacing the
cooling water and repairing the radiator should be consigned to a specialized
subcontractor, or contact us or our sales service agency. Since the coolant is toxic,
never drain it into drainage or sprinkling it on the ground.