Komatsu PC45MR-5 Operation And Maintenance Manual page 111

EXPLANATION OF COMPONENTS OPERATION
REMARK
If you select Split Time measurement, "SPLIT" is displayed at
the top right of "Operation Records" screen.
If you want to stop the measurement, press function switch
"F8" on "Operation Records" screen, and move to "Split Time
Information" screen, and then press function switch "F1"
("STOP").
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