Komatsu PC80MR-5E0, Operation & Maintenance Manual

Page: 402 / 412

Note 4: Non-Amine Engine Coolant (AF-NAC)
1.
The coolant has the important function of preventing corrosion as well as preventing freezing.
Even in the areas where freezing is not an issue, the use of coolant is essential.
Komatsu machines are supplied with Non-Amine Engine Coolant (AF-NAC).
Non-Amine Engine Coolant (AF-NAC) has excellent anti-corrosion, antifreeze and cooling properties and
can be used continuously for 2 years or 4000 hours.
Non-Amine Engine Coolant (AF-NAC) is strongly recommended wherever available.
2.
The concentration of Non-Amine Engine Coolant (AF-NAC) is as shown in the following table.
Coolant density table
Min. atmospheric
temperature
°C
-10 or
more
-15 -20 -25 -30 -35 -40 -45 -50
Density ( %) 30 36 41 46 50 54 58 61 64
The supplied Non-Amine Engine Coolant (AF-NAC) is already diluted.
In this case, fill up the tank with pre-diluted fluid. (Never dilute the Non-Amine Engine Coolant with ordinary
water.)
RECOMMENDED BRANDS AND QUALITIES OTHER THAN KOMATSU
GENUINE OILS
When using commercially available oils other than Komatsu genuine oil, consult your Komatsu distributor.
RECOMMENDED FUEL, COOLANT, AND LUBRICANT REPLACEMENT PARTS
7-8
WENAM00241