Toro Groundsmaster 7210, Руководство по обслуживанию

Страница: 37 / 342

Diesel Particulate Filter (DPF) can be found in the Yanmar Operation Manual -
Industrial Engines TNV supplied with your machine.
Regeneration
The engine ECU monitors the exhaust pressure before and after the soot filter
in the DPF to determine if soot is accumulating. If soot is accumulating during
normal engine operation, the pressure differential will increase. The increase
in pressure will signal the engine to begin a process called Regeneration.
Regeneration increases the exhaust temperature and the length of time the
engine operates at a higher than normal exhaust temperature, incinerating the
built up soot and turning it into ash. The different types of regeneration used are
listed in order based on the amount of particulate matter in the soot filter (least
to most).
Note: The user interface and InfoCenter displays for DPF regeneration changed
with machine software 122-0127E. Use the InfoCenter About screen to verify
the software installed on the machine.
•
For machines with software 122-0127A thru D: Complete DPF regeneration
instructions can be found in the updated traction unit
Operator’s Manual for
the specific machine. Visit www.toro.com to download the updated traction
unit
Operator’s Manual for the machine.
•
For machines with software 122-0127E and up: Complete DPF regeneration
instructions can be found in the traction unit
Operator’s Manual . Visit
www.toro.com to download the traction unit Operator’s Manual with the
correct DPF regeneration instructions for the machine.
Types of regeneration that are performed automatically (while the machine is operating)
Type Conditions Description
Passive Occurs during normal operation of the
machine at high engine speed or high
engine load The DPF processes high heat exhaust
gasses, oxidizing harmful emissions
and incinerating soot to ash.
The InfoCenter does not display an icon
during passive regeneration.
Assist Occurs because of prolonged operation
at low engine speed, low engine load,
or when the engine ECU detects the
soot filter is becoming obstructed. The engine ECU adjusts the exhaust
intake throttle to raise the exhaust
temperature.
For software 122-0127A
thru D only: the InfoCenter displays
the assist regeneration icon.
Reset Occurs every 100 hours of engine
operation
Occurs after an assist regeneration if
the engine ECU determines the assist
regeneration did not sufficiently reduce
the soot level
Note: Reset regeneration may be
temporarily delayed if high exhaust
temperatures would create an unsafe
condition (the machine is operating
indoors or outdoors around trees, brush,
tall grass, or other temperature-sensitive
plants or materials). Refer to Setting
the Inhibit Regen in the traction
unit
Operators Manual for additional
information.
The engine ECU adjusts the exhaust
intake throttle and the injector timing to
raise the exhaust temperature.
For all software revisions:
the InfoCenter displays the high exhaust
temperature icon.
Groundsmaster 7210 Page 3–5 Diesel Engine: General Information
16222SL Rev C