Komatsu PC138USLC Operation & Maintenance Manual page 97

DETAILED CONTROLS AND GAUGES DETAILED CONTROLS AND GAUGES
F5: Returns to standard screen.
F6: Switches to setting screen for selected item.
If no switch is operated for 30 seconds on the user menu screen,
the screen automatically returns to the previous screen.
The following items can be set.
a: Breaker/attachment setting
(machines ready for installation of attachment)
b: Message display
(machines equipped with KOMTRAX)
c: Screen adjustment
d: Clock adjustment
e: Language selection
f: Economy mode adjustment
The operation for setting a to f is as follows.
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OPERATION OPERATION