Komatsu PC15MRX-1 Operation And Maintenance Manual page 61

OPERATION
METER DISPLAY PORTION
(1)Service Meter
(2)Engine Coolant Temperature Gauge
SERVICE METER
This meter(1) shows the total operation hours of the machine.
Set the periodic maintenance intervals using this display.
The service meter advances while the engine is running - even
if the machine is not traveling.
While the engine is running, operation display (A) at the top
inside of the meter will light to show that the meter is advanc-
ing.
The meter will advance by 1 for each hour of operation regard-
less of the engine speed.
ENGINE COOLANT TEMPERATURE GAUGE
This monitor (2) lights up when the engine coolant temperature
goes above the normal value. If it lights up, run the engine at
low idling and wait until the monitor goes out (until the engine
coolant temperature goes down).
(3)Fuel Gauge
(4)Engine Pre-heating Monitor
EXPLANATION OF COMPONENTS
3-7