OPERATING INSTRUCTIONS
31
9/275, 9/305, 12/250, 17/240, 21/220
The regeneration inhibit switch controls the regeneration of the
diesel particulate filter. When the switch is turned to the NORMAL
position (0), the engine ECM will automatically perform the
regeneration of the diesel particulate filter when the soot reaches a
high level.
When the switch is turned to the INITIATE position (Right), a
request is sent to the engine ECM for a manual regeneration of the
diesel particulate filter. This manual regeneration will only happen
when the machine is in a non-mission condition and DPF soot levels
are high enough to allow regeneration.
When the switch is turned to the DISABLE position (Left), the
engine ECM disallows any automatic or manual (non-mission )
regeneration of the diesel particulate filter.
Normal Operation – Passive regeneration:
Passive regeneration occurs during most of equipment operating
time to remove PM soot from the Diesel Particulate Filter. Exhaust
temperatures remain normal and no lamps will illuminated. There is no
impact on equipment performance or operation.
Active regeneration is automatically pre-set to initiate at
96-hour
engine run time intervals
by the engine ECM to remove PM soot
build-up. When active regen is underway, this may be indicated by the
HEST lamp.
Normal Operation – Active regeneration:
HEST Lamp Turns ON
(temperature dependent activation).
Indicates an active regen in progress and higher than normal
exhaust temperatures may occur for typically
15 minutes
. The HEST
lamp will activate according to temperature level set by the OEM.
No operator intervention or action is required.
Equipment works as normal. There maybe a slight increase in
engine noise with a change to the sound of the turbocharger. Surface
temperature of the DPF will elevate.
Normal Operation – Manual regeneration required:
DPF lamp indicates to the operator that the filter requires a
manual active regeneration to clear a build-up of excessive PM
soot.
Active regeneration is enabled -but duty cycle conditions
prevent regeneration from occurring due to low exhaust
temperatures. This will be a very infrequent occurrence.
DPF lamp indicates to the operator that the filter requires a manual
active regeneration to clear a build-up of excessive PM soot.
Active regeneration is enabled - but duty cycle conditions prevent
regeneration from occurring
due to low exhaust temperatures. This will
be a very infrequent occurrence.
However, at the next convenient opportunity (such as end of shift)
the operator should park the equipment and initiate a manual
regeneration when it is safe to do so.
Normal Operation – Regeneration Inhibit:
Regeneration DISABLE position should only be selected if the
compressor is to be used in a location that could be considered
hazardous if the engine ecm initiates active regeneration (increased
exhaust temperatures).
NOTE:
Switch returns from INITIATE position to NORMAL position
automatically.
