Komatsu H75051 Operation & Maintenance Manual page 432

RECOMMENDED FUEL, COOLANT, AND LUBRICANT
REMARK
Specified capacity means the total amount of oil including the oil in the tank and the piping. Refill capacity
means the amount of oil needed to refill the system during inspection and maintenance.
Note 1: KDPF engine oil for cold district is deteriorated easily than that for normal area (replace every 500
hours), so replace oil and filter cartridge every 250 hours. For changing the maintenance interval of machine
monitor, ask your Komatsu distributor.
Note 2: Power train oil has different properties from engine oil. Be sure to use the recommended oils.
Note 3: Axle oil AXO80 is capable of preventing the brake and Limited Slip Differential from creaking. When only
AXO80 is recommended, use Komatsu genuine AXO80 or equivalent.
Note 4: If the daily operation hours of the machine at ambient temperature above 45 °C exceed 12 hours, rec-
ommend TO50 instead of AXO80.
If TO50 is used, the brake may creak but there is no problem in performance and durability of the brake.
If the machine is equipped with Limited Slip Differential, use AXO80, regardless of the ambient temperature. Do
not use TO50.
Note 5: For the machine with auto-greasing, see "AUTO-GREASING".
Note 6: Hyper grease (G2-TE) has high performance.
When it is necessary to improve the lubricating performance of the grease in order to prevent squeaking of pins
and bushings, the use of G2-TE is recommended.
Note 7: 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.
For details of the density of Non-Amine Engine Coolant (AF-NAC), see "METHOD FOR CLEANING INSIDE
OF COOLING SYSTEM".
Non-Amine Engine Coolant (AF-NAC) is supplied already diluted.
In this case, fill up the tank with pre-diluted fluid. (Never dilute the Non-Amine Engine Coolant with ordinary
water.)
Note 8: DEF freezes at -11 °C. If thawing is necessary, DEF system is automatically heated and thawed after
the engine is started.
RECOMMENDED BRANDS AND QUALITIES OTHER THAN KOMATSU
GENUINE OILS
When using commercially available oils other than Komatsu genuine oil, consult your Komatsu distributor.
7-8
REPLACEMENT PARTS