4-36 OM ET18/20/24 us 1.3 * et18_20_24i400.fm
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Fuel level indicator
Indicates the remaining amount of fuel in the tank.
Refuel immediately if the segments reach the red range.
Coolant temperature
Indicates the current coolant temperature of the engine.
The indicator light illuminates if the segments reach the red range.
• Stop the engine immediately.
• Let the engine cool down and check the coolant level.
Hour meter/maintenance meter
Counts the engine service hours with the engine running.
Hour meter
The counter runs as soon as the charge indicator light goes out. The
hour meter is used for specifying the maintenance intervals.
Maintenance meter
The maintenance meter starts at 500.0 hours. It counts down to 0.0
hours. A wrench symbol flashes as soon as the maintenance meter
reaches this value. The meter keeps on counting down (−0.1 hours,
−0.2 hours, etc.).
Symbol Designation
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