Hagie UpFront STS 16, Руководство пользователя

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4-6
SECTION 4 –
ENGINE AND DRIVE SYSTEMS
DEF (Diesel Exhaust Fluid)
DEF is used in Selective Catalyst
Reduction (SCR) systems to aid in
converting nitrogen oxide (NOx) emissions in
engine diesel exhaust into harmless nitrogen
and water vapor.
NOTE: Check DEF level daily.
Fluid Type:
• Use only DEF which meet ISO 2224101
standards.
NOTE: John Deere Diesel Exhaust Fluid
recommended.
Fluid Storage:
• Store DEF between 23° F (-5° C) and
77° F (25° C).
• Refer to “Service - Fluids” provided in
the
Maintenance and Storage Section
elsewhere in this manual for additional
information.
Fluid Disposal:
• Check with local authority regulations on
proper DEF disposal requirements.
DEF Gauge
The DEF Gauge (located on the cab
A-post) allows the operator to view current
DEF tank level at all times.
DOC (Diesel Oxidation Catalyst)
The DOC reacts with exhaust gases to
reduce carbon monoxide, hydrocarbons, and
some particulate matter (PM).
DPF (Diesel Particulate Filter)
The DPF traps and holds the remaining
particulate matter (PM) produced by the
engine. Trapped particles are oxidized within
the DPF through a continuous cleaning
process called “passive regeneration”.
DRT (Decomposition Reactor Tube)
The DRT is a mixer tube where DEF is
injected and mixes with exhaust from the
diesel engine, which is then converted into
ammonia.
SCR (Selective Catalytic Reduction)
The SCR is where the DEF reduces
gaseous nitrogen oxide (NOx) to near zero
levels by converting into nitrogen gas and
water vapor.
DEF Dosing Module
The DEF Dosing Module allows a fine
mist of DEF to be sprayed into the hot
exhaust.
DEF Gauge
(Located on cab A-post)
-Typical View
-Typical View
• SCR
• DPF
• DRT
• DOC