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Diesel Generator Operation Manual SYSTEM OPERATION Operation Part 4 Running at Idle (Manual)

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Diesel Generator Operation Manual  SYSTEM OPERATION Operation Part 4 

Running at Idle (Manual)


5.7   Running at Idle (Manual)

Caution:Avoid off-load running for other than short periods. A minimum loading of 30% is recommended. This loading will help to prevent the build up of carbon deposits in the injectors, due to unburnt fuel, and reduce the risk of fuel dilution of the engine lubricating oil. The engine must be shutdown as soon as possible after the appropriate functions have been checked.

Caution:If the engine coolant temperature becomes too low, 60°C (140°F), raw fuel from incomplete combustion will wash the lubricating oil off the cylinder walls and dilute the crankcase oil. Under these conditions, not all the moving parts of the engine will receive the correct amount of lubrication.

Note:   The Run at Idle mode is selectable only when the Operator Panel is mounted on the control panel assembly.

The Run Mode can be set to Rated or Idle with the set running or not running. To manually select the engine Idle function, the Off/Manual/Auto switch must be in the Manual position. Once selected and the set is manually started, the control will limit the engine idle time to ten minutes. When the ten-minute Idle cycle is complete, the generator set will ramp to rated speed.

To activate the Idle function, refer to Section 4.7.1-Local Control Submenu Function.

When the engine Idle function is enabled, the control automatically sets lower oil pressure Warning and Shutdown trip points to reflect the lower operating speed. When the engine Idle function is removed and the set reverts to normal operating speed, the control automatically resets oil pressure Warning and Shutdown trip points to the normal settings.


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