Operation and maintenance manual

64 SEBU8601-01
Operation Section
Engine Operation
Table 6
Lamp Operation Action Require
d
HEST Lamp On The ARD is activated and the exhaust
temperature is greater than 450 °C
(842 °F)
None
DPF Lamp On The lamp provides a general indication
of the soot load. The lamp is off when
thesootloadisnormal.Thelampwill
operate at level 2 and above.
A regeneration is required. In automatic
mode the ECM will decide when to allow
the regeneration.
If the DPF lamp stays illuminated allow
a regeneration without interruption. An
uninterrupted regeneration will reset the
DPF lamp.
Amber Warning
Lamp
On
The lamp indicates that the soot load has
increased. Regeneration is required.
A regeneration is required. Perform a
forced regeneration, or allow the ECM
control.
Amber Warning
Lamp
Lamp is now
flashing
The flashing lamp will indicate that the
engine has continued to be operated,
regeneration is required.
RedStopLamp On
The engine could be derated or the
engine could be shut down.
An urgent regeneration is required. If
a regeneration is not allowed, the DPF
couldbedamage.
Oncetheengineentresintoshutdown
mode you must contact your Perkins
dealer or your Perkins distributor. Your
dealer or distributor will need to perform a
service level regeneration. The DFP may
need to be replaced.
Some applications will be equipped with a monitoring
gauge. Illustration 40 is an example of the levels of
soot loading on a gauge.
g02153650
Illustration 40
(1) Normal operation level 1
(2) Level 2 with DPF lamp illuminated
(3) level 3 with D P F lamp illuminated and amber warning lamp
illuminated.
During the normal working cycle of the engine the
ECM will control when the regeneration will occur.
Regeneration will take place by low speed automatic
regeneration or by enhanced automatic regeneration.
Operation of the engine at level 3 and not allowing a
regeneration to be performed could damage the DFP.
Soot Level an d Engine Loading
Illustration 41 is a guide to show engine RPM engine
load and when regeneration can occur.
g02237313
Ill
ustratio n 4 1
(A) Engine load factor
(B) Engine RPM
(1) Low speed automatic regeneration
(2) High speed automatic regeneration (60-80% soot load)
(3) High speed automatic regeneration (80-100% soot load)
In some circumstances high speed regeneration
cannot occur. Allow the application to operate at
al
ower load factor in order to allow low speed
regeneration to occur.