Komatsu PC78US-6 Operation & Maintenance Manual page 74

DETAILED CONTROLS AND GAUGES
Do not put your foot on the pedal unless the machine is traveling. If you
leave your foot on the pedal and press it by mistake, the machine will
move suddenly, and this may lead to a serious accident. Do not rest a
foot on the pedal except when traveling or steering the machine, using
the pedal.
If the track frame is facing the rear, the direction of travel operations will
be reversed.
When operating the travel levers, check if the track frame is facing the
front or the rear.
(If sprocket (A) is at the rear, the track frame is facing the front.)
Take good care when traveling or steering the machine, using the pedal.
REMARK
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OPERATION