Komatsu SK820-5 turbo, Operation & Maintenance Manual

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INSTRUMENTS AND CONTROLS
62
2 - ENGINE COOLANT TEMPERATURE INDICATOR
This instrument indicates the temperature of the engine cool-
ant, which in normal conditions should be 80-85°C.
After starting the engine and before starting work, let it warm
up until the temperature indicator reaches the green range.
If the indicator exceeds the limit values while the engine is run-
ning and reaches the overheating red range, let the engine
idle until the indicator returns to the normal temperature green
range.
When the indicator reaches the overheating red range, the
acoustic alarm sounds, too.
If this inconvenience occurs repeatedly, try to find out the
cause (see TROUBLESHOOTING "3.15.4.3 ENGINE").
3 - FUEL LEVEL INDICATOR
This instrument indicates the fuel level in the tank; this infor-
mation is available only with the ignition key in position «
I »
(see "3.3.3 pos. 9 - IGNITION SWITCH").
The green range indicates the normal fuel level, while the red
range indicates that the fuel level is low.
NOTE
q
If the indicator reaches the reserve red range while the ma-
chine is working, stop it and refuel it up to the correct level.
RYA13650
RYA13660
RYA13670