Komatsu PC138USLC Operation & Maintenance Manual page 120

OPERATION
Language Selection
On this language selection menu, it is possible to select the language used on the monitor display.
The languages that can be selected are as follows.
Japanese, English, Chinese, French, Spanish, Portuguese, Italian, German, Russian, Turkish, Indonesian, Thai
1. On the standard screen, press switch F6.
2. Select "Language" on the user menu, then press switch F6.
The screen switches to the language selection menu screen.
DETAILED CONTROLS AND GAUGES
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