Komatsu H70051 Series Operation & Maintenance Manual page 441

REPLACEMENT PARTS
Engine oil pan
Transfer case
Hydraulic System
Axle (Front)
Axle (Rear)
Cooling system
Fuel tank
DEF tank
Air conditioner
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 time of machine moni-
tor, ask your Komatsu distributor to perform the work.
Note 2: Axle oil AXO80 is capable of preventing the brake and LSD (Limited Slip Differential) from creaking.
When only AXO80 is recommended, use Komatsu genuine AXO80 or equivalent.
Note 3: If the daily operation hours of the machine at ambient temperature above 45 °C exceed 12 hours, TO50
is recommended 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 4: Hyper grease (G2-TE) has a high performance. When it is necessary to improve the lubricating ability of
the grease in order to prevent squeaking of pins and bushings, the use of G2-TE is recommended.
Note 5: 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 recommends the use of Non-Amine Engine Coolant (AF-NAC). If you use another coolant, it may
cause serious problems in the cooling system, including the engine.
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 the density of Non-Amine Engine Coolant (AF-NAC), see "Coolant density table".
Non-Amine Engine Coolant (AF-NAC) is supplied already diluted. In this case, fill up the tank with pre-dilut-
ed fluid. (Never dilute the Non-Amine Engine Coolant with ordinary water.)
Coolant density table
Min. atmospheric temperature
( °C)
Density ( %)
Note 6: The DEF freezes at -11 °C. If thawing is necessary, the DEF system is automatically heated to thaw
DEF after the engine is started.
Reservoir
-10 or
-15
more
30 36
RECOMMENDED FUEL, COOLANT, AND LUBRICANT
Specified capacity
Liter
25.5
9.8
146
27
25.5
35.1
245
21.1
1,000 g
-20 -25 -30
41 46 50
Refill capacity
Liter
23
5.8
92
27
25.5
-
-
-
1,000 g
-35 -40 -45
54 58 61
-50
64
7-7