3-4
PC130/150LGP-6K ENG
18. OUTLINES OF SERVICE
• Use Komatsu genuine parts for replacement.
• When changing or adding oil, do not use a different type of oil.
• Unless otherwise specified, the oil and coolant used at the time of shipment from the factory are as shown in
the table below.
Item
Engine oil pan
Swing machinery case
Final drie case
PTO gear case
Hydraulic tank
Fuel tank
Radiator
Kind of fluid
SAE 15W-40
API classification CD
SAE 30
API classification CE
SAE 10W
API classificationCD
ASTM D975 No. 2
(However, ASTM D975 No. 1 is used for the
winter season, October to March)
Komatsu Super Coolant
(AF-ACL) 41% added to water
18.1 OUTLINE OF OIL, FUEL, COOLANT
18.1.1 OIL
• Oil is used in the engine and work equipment under extremely severe conditions (high temperature, high
pressure), and it deteriorates with use.
Always use oil that matches the grade and temperature for use given in the Operation and Maintenance
Manual. Even if the oil is not dirty, always replace the oil after the specified interval.
• Oil corresponds to blood in the human body, so always be careful when handling it to prevent any impurities
(water, metal particles, dirt etc.) from getting in.
The majority of problems with machine are caused by the entrance of such impurities.
Take particular care not to let any impurities get in when storing or adding oil
• Never mix oils of different grades or brands.
• Always add the specified amount of oil
Having too much oil or too little oil are both causes for problems.
• If the oil in the work equipment is not clear, there is probably water or air getting into the circuit.
In such cases, please contact your Komatsu distributor.
• When changing the oil always replace the related filters at the same time.
• We recommend you to have an analysis made of the oil periodically to check the condition of the machine. For
those who wish to use this service, please contact your Komatsu distributor.
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