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REPLACEMENT PARTS
RECOMMENDED FUEL, COOLANT, AND LUBRICANT
NOTICE
•
Komatsu genuine oils are conditioned to maintain the reliability and durability of Komatsu construc-
tion equipment and components.
In order to keep your machine in the best condition for long period of time, it is essential to follow
the instructions in this Operation and Maintenance Manual.
•
Failure to follow these recommendations may result in shortened life or excessive wear of the en-
gine, power train, cooling system, and/or other components.
•
Commercially available lubricant additives may be good or bad for the machine. Komatsu does not
recommend any commercially available lubricant additive.
•
Use the oil according to the ambient temperature as recommended in the chart below.
•
When starting the engine in temperatures below 0 °C, be sure to use the recommended multi-grade
oil, even if the ambient temperature may become higher during the course of the day.
•
If the machine is operated at a temperature below -20 °C, separate devices are needed. Consult
your Komatsu distributor.
NOTICE
The fuel used must be ultra low-sulfur diesel fuel.
(≤10 ppm)
To ensure good fuel consumption characteristics and ex-
haust gas characteristics, the engine mounted on this ma-
chine uses an electronically controlled high-pressure fuel
injection device and emission gas control system. Since
the high-pressure fuel injection device requires high preci-
sion parts and lubrication, if low viscosity fuel with low lu-
bricating ability is used, its durability may drop considera-
bly. Also, using fuel with high sulfur content may deterio-
rate the engine parts, inducing failures, decrease of the life
and degradation in performance.
NOTICE
Use DEF as the aqueous urea solution for SCR system.
DEF is a colorless transparent 32.5% aqueous urea solu-
tion.
The quality of DEF is prescribed in ISO22241-1. Always use
DEF that conforms to this quality standard.
LUBRICATION CHART
•
The lubrication chart uses symbols to show the lubrication points and types of lubricant by each lubrication
interval.
Keep this chart in the magazine box inside the cab so that the people concerned can refer it any time dur-
ing lubrication.
•
Even if the same symbol is used in the lubrication chart, the recommended genuine oil may differ according
to the lubrication points and the ambient temperature. For details, see "METHOD FOR USING FUEL,
COOLANT AND LUBRICANTS ACCORDING TO AMBIENT TEMPERATURE":
•
For details on lubrication, see MAINTENANCE "MAINTENANCE SCHEDULE TABLE".
RECOMMENDED FUEL, COOLANT, AND LUBRICANT
WENAM00130
7-5
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