IHI 55N3, Руководство по эксплуатации, Страница: 97 / 115

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MAINTENAN C E
12.Maintain the coolant level to the fill port neck.
13.Replace the cap gasket if the gasket is damaged.
Install the radiator cap.
14.Maintain the coolant level between the MAX
and MIN marks on the reserve tank.
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Clean the Outside of the Radiator Core
When the radiator core is clogged, the cooling
air flow is interrupted lowering the cooling
efficiency.
Remove dust or debris from the radiator fins.
Clean the radiator with a pressurized air, high
pressure water or steam at 500 hours interval.
Whenever the radiator is found to be closed,
clean it at any time.
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Selection of coolant
Long-Life-Coolant (LLC) is supplied to this
machine before shipment.
This is a coolant provided with proper ties of
antifreeze, corrosion-proof and fouling-proof.
Its long lasting effects will maintain the machine
free from coolant exchange for 2 years through
summer and winter seasons.
The Long -Life-Coolant is therefore recommended
for use with this machine when exchanging its
coolant.
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Mixing Rate of Long-Life-Coolant
The mixing ratio of Long-Life-Coolant with water
determines the freezing point.
Select the mixing ratio for a freezing point lower
by 5º than the expected lowest atmospheric
temperature.
Normally, the Long-Life-Coolant is used under
a mixing ratio of 30 to 50%.
If the mixing ratio is less than 30%, occurrence
of rust is feared and when it is over 50%,
overheating is feared and sealing components
may be deteriorated quicker than usual.
Meanwhile, use city water to mix with Long-
Life-Coolant.
Freezing point
–15 –25 –35
(ºC)
Mixing ration
30 40 50
(%)
Quantity of
2.5 3.26 4.08
LLC (L)
Quantity of
5.65 4.89 4.07
water (L)
Coolant Total
amount:
8.15 L
Engine proper : 4.2 L
Radiator and
other proper : 3.5 L
Reserve tank : 0.45 L
2YEARS
Reserve tank