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Operation—Operating the Machine
Continued on next page KR46761,0001389 -19-21SEP16-1/2
Aftertreatment Device
The aftertreatment device is a critical component in the
engine's emissions control system, which is required
to meet governmental emissions regulations. The
aftertreatment device captures soot and ash to prevent
its release into the atmosphere. The soot and ash must
be eliminated from the aftertreatment device to keep it
functioning properly. The process of eliminating collected
soot is called aftertreatment device regeneration. There
are three types of aftertreatment device regeneration
available to the operator:
•
NATURAL/PASSIVE
•
AUTO
•
MANUAL
Auto-regeneration is able to activate (if not inhibited by
the operator) 30 hours after previous regeneration, either
automatically or manual.
Manual regeneration can only be initiated when
aftertreatment device manual regeneration indicator
illuminates on monitor. See Aftertreatment Device
Regeneration in this section.
If approximately 48 hours have passed without
regeneration being carried out, engine trouble alarm will
be displayed on the monitor. See an authorized Hitachi
dealer.
NOTE: Unnecessary idling can cause aftertreatment
device soot to accumulate more quickly. For the
best possible aftertreatment device operation which
requires the least amount of operator interaction,
idling should be kept to a minimum.
Natural/Passive Cleaning
During normal machine operation, the aftertreatment
device heat will naturally clean the soot build up in the
aftertreatment device.
Auto-Regeneration
CAUTION: Servicing machine during
aftertreatment device regeneration can result in
serious personal injury. Avoid exposure and skin
contact with hot gases and components.
During aftertreatment device regeneration,
the engine may run at elevated idle and
hot temperatures for an extended period of
time. Aftertreatment gases and aftertreatment
device components may reach temperatures
hot enough to burn people and ignite or
melt common materials.
NOTE: Auto-regeneration is performed 30 hours after
the previous regeneration. Auto-regeneration
may start during operation of machine, allowing
operator to continue operating machine.
With aftertreatment device auto-regeneration not inhibited,
aftertreatment device regeneration is automatically
performed as needed, with no interaction from the
operator. An aftertreatment device regeneration request
will illuminate on the default screen of the monitor when
the system is actively performing an aftertreatment device
auto-regeneration. Machine can be operated as normal.
When the aftertreatment device auto-regeneration
process has completed its cycle, the auto-regeneration
request will automatically turn off.
NOTE: Inhibiting aftertreatment device regeneration is
not preferred. Whenever possible, aftertreatment
device regeneration should be enabled to keep
soot buildup to a minimum and to increase
overall machine uptime.
If operating in conditions where it may be unsafe
for elevated aftertreatment device temperatures,
aftertreatment device regeneration can be inhibited
through the monitor. For more information, see
Main Menu—Setting Menu—Aftertreatment Device
Regeneration Inhibit. (Section 2-2.) If aftertreatment
device regeneration is inhibited by the operator, an
aftertreatment device regeneration inhibit indicator will
appear on the default screen of the monitor and remains
on until aftertreatment device regeneration is no longer
inhibited.
Manual Regeneration
CAUTION: Servicing machine during
aftertreatment device regeneration can result in
serious personal injury. Avoid exposure and skin
contact with hot gases and components.
During aftertreatment device regeneration,
the engine may run at elevated idle and
hot temperatures for an extended period of
time. Aftertreatment gases and aftertreatment
device components may reach temperatures
hot enough to burn people and ignite or
melt common materials.
Avoid death or serious injury from machine
movement. Do not leave running machine
unattended during aftertreatment device
regeneration.
IMPORTANT: Avoid machine damage. Always
park machine in a safe location and check
for adequate fuel and diesel exhaust uid
(DEF) level before beginning aftertreatment
device regeneration.
2-3-12
112321
PN=163
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