Komatsu WA380-8 Operation & Maintenance Manual page 421

REPLACEMENT PARTS
The symbols used in the lubrication chart are explained as follows.
Symbol
Read the Operation and Maintenance
Manual.
Change of the engine oil
Change hydraulic oil
Change power train oil
Meaning of the symbol
RECOMMENDED FUEL, COOLANT, AND LUBRICANT
Symbol
Greasing of the grease
Check oil level in engine oil pan
Check oil level in hydraulic oil
Change power train oil filter
Meaning of the symbol
7-5