Komatsu PC1250-11, Original Instructions Manual

Page: 443 / 452

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: Power train oil has different properties from engine oil. Be sure to use the recommended oils.
Note 3: Hyper grease (G2-TE) has 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 4: About 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 the concentration of Non-Amine Engine Coolant (AF-NAC), see the Coolant density table.
Non-Amine Engine Coolant (AF-NAC) is supplied in diluted state, so always fill up with it. (Never dilute it
with ordinary water.)
Coolant density table
Min. atmospheric tempera-
ture
°C
-10 or
more
-15 -20 -25 -30 -35 -40 -45 -50
Density ( %) 30 36 41 46 50 54 58 61 64
Note 5: If this oil is used for hydraulic system, fuel consumption increases.
We strongly recommend HO56-HE for hydraulic oil.
When the machine is equipped with the auto-greasing system, see “HANDLE AUTO-GREASING SYSTEM”.
RECOMMENDED BRANDS AND QUALITIES OTHER THAN KOMATSU
GENUINE OILS
When using commercially available oils other than Komatsu genuine oil, consult your Komatsu distributor.
REPLACEMENT PARTS RECOMMENDED FUEL, COOLANT, AND LUBRICANT
7-9