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Periodic Maintenance
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To display the operating hours meter
Press the MENU button to display the setup menu, then
turn the PUSH SET knob to display the required item on
the monitor connected to the unit.
To exit from the operating hours meter
Press the RETURN function button (F1) to return to the
setup menu.
Press the EXIT function button (F6) to return to the screen
that was displayed before you entered the setup menu.