Komatsu PC118MR-8 Operation And Maintenance Manual page 107

FUNCTIONING
(13) Hour counter, clock
The hour counter (13) displays the total operating hours of the
machine or the current time.
With the engine running, the hour counter advances even if the
machine is not moving. The hour counter advances by 1 hour
for every hour the machine is in operation, independently of
engine speed.
q In the standard screen, press the F4 function key to switch
between clock and hour counter.
q Clock (12 or 24 hour mode). Press the F6 key (use more)
to set or adjust the time.
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INSTRUMENTS AND CONTROLS
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