Exhaust Filter - Worldwide Construction And Forestry Division 380GLC Operator's Manual

Exhaust Filter

The exhaust filter is a critical component in the engine's
emissions control system, which is required to meet
governmental emissions regulations. The exhaust filter
captures soot and ash to prevent its release into the
atmosphere. The soot and ash must be eliminated from
the exhaust filter to keep it functioning properly. The
process of eliminating collected soot is called exhaust
filter cleaning. There are three types of exhaust filter
cleaning available to the operator:
•
NATURAL/PASSIVE
•
AUTO
•
PARKED
There are five soot levels to describe the amount of
restriction in the exhaust filter. These levels determine the
type of cleaning that is required:
•
LOW
•
MODERATE
•
HIGH
•
VERY HIGH
•
SERVICE
To observe the current restriction status of the exhaust
filter, an exhaust filter restriction level bar graph is
located in the Information Menu for viewing at any time.
For more information, see Main Menu—Information
Menu—Monitoring. (Section 2-2.)
Auto cleaning is able to activate (if not disabled by the
operator) when the exhaust filter restriction is anywhere
between MODERATE and HIGH soot levels. Auto
cleaning is no longer available if exhaust filter restriction
reaches VERY HIGH or SERVICE soot levels.
Parked cleaning can only be initiated when the exhaust
filter restriction reaches HIGH or VERY HIGH soot levels.
If exhaust filter restriction reaches SERVICE soot level,
contact your authorized dealer.
In addition to the cleaning procedures, the exhaust
filter also requires maintenance to remove accumulated
ash as required, which is a noncombustible result of
additives used in crankcase lubrication oils and the fuel.
Ash removal CANNOT be performed by the operator.
For more information on exhaust filter ash removal, see
Service Exhaust Filter. (Section 3-3.)
NOTE: Unnecessary idling can cause exhaust filter
soot to accumulate more quickly. For the best
possible exhaust filter operation which requires
the least amount of operator interaction, idling
should be kept to a minimum.
Natural/Passive Cleaning
During normal machine operation, the exhaust heat will
naturally clean the soot build up in the exhaust filter.
Operation—Operating the Machine
Auto Cleaning
CAUTION: Servicing machine during exhaust
filter auto cleaning can result in serious personal
injury. Avoid exposure and skin contact with
hot gases and components.
During exhaust filter auto cleaning, the engine
may run at elevated idle and hot temperatures
for an extended period of time. Exhaust gases
and exhaust filter components may reach
temperatures hot enough to burn people and
ignite or melt common materials.
With auto cleaning enabled, exhaust filter cleaning is
automatically performed as needed, with no interaction
from the operator. An exhaust filter cleaning indicator
will illuminate on the default screen of the monitor when
the system is actively performing an exhaust filter auto
cleaning. Machine can be operated as normal. When the
exhaust filter auto cleaning process has completed its
cycle, the cleaning indicator will automatically turn off.
NOTE: Disabling exhaust filter auto cleaning is not
If operating in conditions where it may be unsafe for
elevated exhaust temperatures, auto cleaning can be
disabled through the monitor. For more information, see
Main Menu—Setting Menu—Auto Exhaust Filter Cleaning.
(Section 2-2.) If auto cleaning is disabled by the operator,
an exhaust filter auto cleaning disabled indicator will
appear on the default screen of the monitor and remains
on until auto cleaning is enabled again. If filter restriction
reaches the HIGH soot level with auto cleaning disabled,
an exhaust filter alarm indicator will appear on the default
screen of the monitor to alert the operator to enable auto
cleaning or to initiate a parked cleaning. Operator can
check the restriction level bar graph in the monitor at any
time. See Main Menu—Information Menu—Monitoring.
(Section 2-2.)
Parked Cleaning
CAUTION: Servicing machine during exhaust
filter parked cleaning can result in serious
personal injury. Avoid exposure and skin contact
with hot gases and components.
During exhaust filter parked cleaning, the engine
may run at elevated idle and hot temperatures
for an extended period of time. Exhaust gases
and exhaust filter 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 exhaust filter cleaning.
Continued on next page
2-3-7
preferred. Whenever possible, auto cleaning should
be enabled to keep soot buildup to a minimum
and to increase overall machine uptime.
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