Exhaust Regeneration Procedure - Sullair 600H User Manual

600H, 700HH, 750, 750H, 750HH, 825, 900H, 1050 USER MANUAL
4.4 EXHAUST REGENERATION
PROCEDURE
The aftertreatment constantly monitors the soot
levels of the exhaust gas. If soot levels detected by
the indicator reach above 80% the engine Electronic
Control Module (ECM) lights the DPF lamp
the controller screen, and should automatically
trigger the ARD to ignite diesel fuel passing through
the DPF until soot levels return to normal (< 10%).
During regeneration the HEST Lamp
controller screen, should be lit. If for some reason the
emissions module is not automatically engaged
regeneration can be achieved, manually, by pressing
and holding the <REGEN> Switch in the "force"
position , on the controller, for 15 seconds. This
will manually force the regeneration process at soot
levels of 15% - 105%. If regeneration is not desired
the automatic regeneration process can be halted by
engaging the <REGEN> Switch in the "inhibit"
position , on the controller. If regeneration is
inhibited the DPF Inhibited Lamp
controller screen, should be lit. Regeneration
inhibition should not be a regular practice, as
allowing soot load percentages to get above 116%
could cause the unit to abnormally shut down and
fault the DPF. The Unit will NOT be able to function
Soot Level Timer
<80%
80%
100%
116%
116% +5min
116% +10min
120%
140%
72
, on the
, on the
Operator
Indication
NA
NA
!
Yellow
NA
NA
!
Yellow
NA
Yellow Red
NA
! !
Figure 4-1: Active Regeneration Operation Sequence
until the faulted DPF is replaced. Force regeneration
to reengage automatic feature. If for some reason the
regeneration methods do not work and soot levels
are close too, at, or above 100% shut the unit down
immediately until this issue is resolved. For
troubleshooting and next steps please refer to
Section 5.17: Troubleshooting Guide on page 87,
, on
Engine Operator's Manual, or contact your CAT
dealer.
Regenerated exhaust gas can reach temper-
atures as high as 1300-1400F. DO NOT come
into direct contact with these gases.
Under no circumstances should the soot
level reach above 140% as this will fault the
DPF and halt unit operation until it is
replaced. If for some reason the regenera-
tion methods mentioned in this document
do not work and soot levels are close to, at,
or above 116%, shut the unit down immedi-
ately until this issue is resolved.
Engine De- Engine Shutdown
Rate Strategy Strategy
Engine De-Rate
begins at -25%
** Pre-Emptive Idle Down
(Programmable—Enable/Disable)
*** Rolling Shutdown Trigger
REGEN Disabled Service
Engine De-Rate
Level Regen Only
at -60%
Engine Shutdown
Replace DPF
30 sec Rolling Shutdowns
SECTION 4
DANGER
WARNING
Engine
Protection
Low Soot Mode