Komatsu ecot3 Operation And Maintenance Manual page 68

OPERATION
Emergency Monitors
If the monitor lights up in red, stop the engine immediately or run at low idle, check applicable location, then perform necessary
actions.
These items should be observed while the engine is running. If there is a problem, the monitor for the abnormal
location lights up in red and buzzer sounds, perform action immediately.
(1) Engine coolant temperature monitor
(2) Hydraulic oil temperature monitor
Engine Coolant Temperature Monitor
Monitor (1) warns operator that the engine coolant temperature
has risen.
If the engine coolant temperature becomes abnormally high, the
monitor shows abnormal display (C). The overheat prevention
system is automatically actuated and the engine speed drops.
Stop operations and run the engine at low idle until monitor (1)
shows normal display (B).
Display (A) at low temperatures: Monitor background (D) is white
Display (B) at correct temperatures: Monitor background (D) is
Display (C) when condition is abnormal: Monitor background (D)
CAUTION
(3)
blue
is red
DETAILED CONTROLS AND GAUGES
Engine oil pressure monitor
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