Komatsu PC450-8 Operation & Maintenance Manual page 104

DETAILED CONTROLS AND GAUGES
q
If an error monitor is displayed, move the machine, set it in a
safe posture, then have inspection carried out immediately.
For details of the content of the warning displays, see "Basic
Check Monitors (3-16)", "Caution Monitors (3-13)", "Emergency
Monitors (3-11)" and "TROUBLES AND ACTIONS (3-189)".
Service Meter/Clock Display Selector Switch
On the standard screen, it is possible to press switch F4 to
switch the service meter and clock display at the top of the
monitor display.
q
When the time is being displayed, press switch F4 to switch
to the service meter display.
When the service meter is being displayed, press switch
F4 to switch to the time display.
3-38
OPERATION
3