Komatsu PC118MR-8 Operation And Maintenance Manual page 98

INSTRUMENTS AND CONTROLS
WARNING LIGHTS
If the warning lights illuminate in red, stop working as soon as possible and perform the necessary
inspection and maintenance work. Ignoring warning signals may lead to malfunction.
Check the status of these indicator lights frequently while the engine is running. In the event of malfunction, the
screen displays the component requiring immediate maintenance.
The relative warning light illuminates in red.
(1) Engine coolant temperature warning light
(2) Hydraulic fluid temperature warning light
(3) Fuel level warning light
(4) Battery charge level warning light
(5) Overload alarm light
(1) Engine coolant temperature warning light
If t h e wa r n in g l i gh t ( 1 ) in d ic a te s an ex c e s s iv e l y l o w
temperature (A), carry out the warm-up procedure. For more
details, see "Warming the engine (3-137)".
After the monitor (1) indicates that all conditions are normal (B),
carry out the engine warm-up procedure.
If the warning light (1) indicates a malfunction (C), do not
switch the engine off suddenly. Stop working and run the
engine at idle speed until the warning light (1) indicates normal
temperature (B).
q Low temperature (A): Background of indicator (D) is white
q Normal temperature (B): Background of indicator (D) is
blue
q Fault state (C): Background of indicator (D) is red
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CAUTION
WEAM014802
FUNCTIONING