5.2 Basic maintenance guidelines
Maintenance
5-10
WA80M-7, WA100M-7 – VENAM03001
5.2 Basic maintenance guidelines
Exclusively use Komatsu genuine parts, greases and oils.
When changing the oil or adding oil, do not mix different types
of oil. When changing the type of oil, drain the oil completely
and refill the system with the new oil. Also be sure to replace
the oil filter. (There is no problem if the small amount of oil
remaining in the piping mixes with the new oil.)
Unless specifically required otherwise, the machine is deliv-
ered with fuel, coolant, and lubricants as shown in the table
below.
5.2.1 Fuel, coolant and lubricant specifications
Oil
Oil is used in the engine and in the work equipment under
extremely severe conditions (high temperature, high pres-
sure) and deteriorates with use.
Always use oil that matches the grade and temperature range
specified in the Operation and Maintenance Manual.
Even if the oil is not contaminated, it needs to be changed
after the specified interval.
Oil in a machine corresponds to the blood in a human body.
Handle it carefully to prevent contamination (water, metal par-
ticles, dirt, etc.).
The majority of problems with machines are caused by such
impurities.
Take particular care to prevent contamination during storage
or when refilling.
Never mix oils of different grades or brands.
Component Type
Engine oil pan Engine oil 15W-40-LA (Komatsu genuine parts)
Transmission case Shell Spirax S4 TXM
Hydraulic system
Shell Tellus S2 M46 hydraulic oil (Komatsu genuine parts)
WA80M-7 serial numbers from H62051 to H62063
WA100M-7 serial numbers from H62051 to H62184
Engine oil EO10W30-DH (Komatsu genuine parts)
WA80M-7 serial numbers from H62064
WA100M-7 serial numbers from H62185
Axles Shell Spirax S4 TXM
Cooling system Supercoolant AF-NAC (density: 50%) (Komatsu genuine parts)
Tank window washer system Ethanol-based (only use ethanol-based)
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