SEBU8726-03 59 Operation Section Diesel Particulate Filter Regeneration Table 4 Note: Amber or yellow warning indicator can be used as a diagnostic lamp. For more information refer to this Operation and Maintenance Manual, “Diagnostic Lamp”. Wall Flow DPF Only The engine Revs Per Minute (RPM) must be above 1200 RPM for the regeneration to start. Normal operation can continue. During an automatic regeneration the minimum idle speed will be controlled to 950 RPM. Regeneration Operation Regeneration will require the following conditions: Automatic Regeneration Manual Regeneration The DPF indicator must be illuminated.
Where applicable, safety interlock for your application must be engaged before a manual regeneration can occur, refer to your OEM for more information. No throttle inputs are required, the ECM will control the engine RPM. Press the force regeneration switch for 2 seconds. Do not operate the application during the manual regeneration. In order for an automatic regeneration to take place the engine must be at operating temperature. Turning the keyswitch to the OFF position during a regeneration will stop the regeneration. An interrupted regeneration will not remove the soot from the DPF and will waste fuel.
Indicator Operation During passive regeneration no indicator will be illuminated Aftertreatment Indicator Aftertreatment Indica- tor State Warning Indicator Warning Indicator State Description Action Required Regeneration Active indicator On Solid None None Regeneration is activated. The indicator will stay illu- minated during regeneration. None - DPF Indicator On Solid None None The indicator provides a general indication of the soot load. The indicator is off when the soot load is normal. A regeneration is required. In automatic mode the ECM will decide when to allow the active regeneration. If the DPF indicator stays illuminated allow a manual regeneration without inter- ruption.
An uninterrupted active regeneration will re- set the DPF indicator. - DPF Indicator On Solid Amber indicator Flashing The indicator indicates that the soot load has increased. The engine will derate. A manual regeneration is required. Perform a man- ual regeneration, or a service regeneration will be required. - DPF Indicator On Solid Amber indicator Flashing The flashing warning indi- cator and red stop indica- tor indicates that the engine has continued to be operated while a regen- eration is required. The engine will be derated and the engine should be shut down immediately. Once the engine enters into shutdown mode, you must contact your Perkins distributor or your Perkins dealer.
Your dealer or distributor will need to perform a service level regeneration. The DFP may need to be replaced. - - Red indicator (STOP) On Solid