IHI 15VX Operation Manual page 97

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.
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.
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
recommended for use with this machine when
exchanging its coolant.
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.
MAINTENANCE
.
is therefore
3 – 28
Reserve tank level
Freezing point
–15
(ºC)
Mixing ration
30
(%)
Quantity of
1.1
LLC (L)
Quantity of
2.5
water (L)
Coolant Total Engine proper : 0.9 L
amount: 3.6L
Radiator and
other proper : 1.9 L
Reserve tank : 0.8 L
2YEARS
Upper limit
Lower limit
–25 –35
40 50
1.4 1.8
2.2 1.8