Komatsu PC450-8 Operation & Maintenance Manual page 90

DETAILED CONTROLS AND GAUGES
q
When the standard screen is being displayed, if function
switch F4 is pressed, it is possible to switch between the
clock display and the service meter display.
q
Clock display (12-hour or 24-hour displays are available)
To set or correct the time, press function switch F6 (user
mode switch).
ECO Gauge
This gauge (14) shows the working load status.
When the gauge is in green range A, the work load is light to
medium. When the gauge is in orange range B), the load is
heavy.
q
When the gauge enters the orange range, there is no abnor-
mality on the machine, but to protect the environment,
reduce the engine output to a point where there is no
adverse effect on the operation. Generally, carry out
energy-saving operations in the green range. Reducing the
frequency of travel also helps to save energy. Consider the
best way of saving energy.
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OPERATION