Komatsu H75051 Operation & Maintenance Manual page 429

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