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64
Operation Section
Diesel Particulate Filter Regeneration
Note: Some OEMs may use other means of
activating a forced regeneration such as touch
screen interfaces.
Force Regeneration – Press in the top of
the switch for 2 seconds in order to
begin regeneration. An indicator light on
the switch will become active showing that the
regeneration is active. The HEST lamp will
become active showing that the regeneration is
active. The high exhaust temperature indicator
will deactivate after regeneration is completed or
the regeneration has been disabled.
Disable Regeneration – Press in the
bottom of the switch for 2 seconds in
order to disable regeneration. An
indicator light on the switch will become active.
The disable indicator lamp will illuminate. The
indicator will deactivate after the disable
regeneration is completed.
Note: To re-enable the regeneration, cycle the
engine start switch key or press and hold down the
force regeneration switch for 2 seconds.
Note: If the engine start switch key is cycled while
the regeneration system is disabled via the disable
regeneration switch, press and hold the disable
regeneration switch for 2 seconds to reinitiate the
disable regeneration.
Soot Level Monitoring and
Indicator Lamps
During the normal working cycle of the engine the
ECM will control when the regeneration will occur.
Operation of the engine is not recommended with the
amber warning light flashing, or the red lamp
illuminated. Operation of the engine at this level
could damage the DPF.
Table 6
HEST Lamp
On
DPF Lamp
On
Amber Warning Lamp On
Lamp Operation
The ARD is activated and the exhaust tempera-
ture is greater than 450 °C (842 °F)
The lamp provides a general indication of the
soot load. The lamp is off when the soot load is
normal. The lamp will operate at level 2 and
above.
The lamp indicates that the soot load has in-
creased. Regeneration is required.
Action Required
None
A regeneration is required. In automatic mode
the ECM will decide when to allow the
regeneration.
If the DPF lamp stays illuminated allow a regen-
eration without interruption. An uninterrupted re-
generation will reset the DPF lamp.
A regeneration is required. Perform a forced re-
generation, or allow the ECM control.
SEBU8601-04
(continued)
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