Exhaust Filter - Atlas Copco XAS 400 JD IT4 HOP Instruction Manual

EXHAUST FILTER

1. Diesel Particulate Filter (DPF)
2. Diesel Oxidation Catalyst (DOC)
EXHAUST FILTER SYSTEM
An exhaust filter consisting of a diesel oxidation catalyst
(DOC) and a diesel particulate filter (DPF) specifically to
meet the demands of offhighway applications. The DOC
reduces carbon monoxide, hydrocarbons, and some
particulate matter. The downstream DPF traps and holds
particulates remaining in the exhaust stream. Trapped
particles are eventually oxidized within the DPF through a
process known as regeneration or exhaust filter cleaning.
Under normal machine operation and with the system in
AUTO mode, the exhaust filter system requires minimal
operator interaction.
To avoid unnecessary buildup of diesel particulates or soot
in the exhaust filter system;
1. Utilize the Automatic (AUTO) Exhaust Filter Cleaning
mode.
2. Avoid unnecessary idling.
3. Use Atlas copco "PAROIL E mission Green Low
SAPS" engine oil.
4. Use only ultra low sulfur fuel.
In addition to soot, ash deposits will also slowly build up
in the DPF and cannot be removed through the engine
exhaust filter cleaning process.
When the exhaust filter has run several thousand hours,
these ash deposits can restrict engine performance due to
increased back pressure.
To correct this situation, replace the
exhaust filter or have the exhaust filter
cleaned in specialized equipment.
Do not power wash the filter assembly when
external skin temperature of assembly
exceeds 50° C (120° F).
DIESEL PARTICULATE FILTER
MAINTENANCE AND SERVICE
The Exhaust Filter includes the Diesel Oxidation Catalyst
(DOC) and Diesel Particulate Filter (DPF). The DPF is
designed to retain residual ash, which is a noncombustible
result of additives used in crankcase lubrication oils and
the fuel. The DPF provides many hours of maintenance
free operation. At some point the DPF will require
professional service to remove the accumulated ash. The
exact number of hours of operation before service is
required will vary depending upon the engine's power
category, duty cycle and operating conditions, engine oil
ash content, and fuel quality.
The exhaust filter's dash lamp indicator or the dignostic
codes will indicate when the DPF needs ash removal
service.
The removal of DPF ash must be done by removing the
DPF from the machine and placing it into specialized
equipment. Do not remove ash by using water or other
chemicals. Removing ash by these methods may damage
the material securing the DPF in its canister, resulting in
the loosening of the DPF element in the canister and
subjecting it to damage from vibration.
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EXHAUST FILTER / DIESEL PARTICULATE
FILTER ASH HANDLING AND DISPOSAL
Under federal, state, and/or local laws or
regulations, Diesel Particulate Filter ash
may be classified as a hazardous waste.
Hazardous wastes must be disposed of in
accordance with all applicable federal, state
and local laws or regulations governing
hazardous waste disposal. Only a qualified
service provider should remove ash from the
DPF. Personal protective equipment and
clothing, maintained in a sanitary and
reliable condition, should be used when
handling and cleaning a DPF. See your John
Deere dealer or qualified service provider
for assistance.
EXHAUST FILTER DISPOSAL
Proper management of an Exhaust Filter
that has reached the end of its useful life is
required, since the ash or catalyst material
in the device may be classified as hazardous
waste under federal, state, and/orlocal laws
or regulations. Used Exhaust Filters,which
include the Diesel Particulate Filter,may be
exchanged at any Engine manufacturer's
dealeror qualified service provider.
See Engine operator's manual for further
information regarding the Exhaust Filter.