Toro Groundsmaster 4300-D Service Manual page 38

Regeneration (continued)
Types of regeneration that are performed automatically (while the machine is operating)
Type
Passive
Assist
Reset
Diesel Engine: General Information
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 120-6375J. Use the InfoCenter About screen to verify
the software installed on the machine.
•
For machines with software 120-6375A thru I: 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 120-6375J 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.
Conditions
Occurs during normal operation of the
machine at high engine speed or high
engine load
Occurs because of prolonged operation
at low engine speed, low engine load,
or when the engine ECU detects the
soot filter is becoming obstructed.
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
unitOperators Manual for additional
information.
Description
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.
The engine ECU adjusts the exhaust
intake throttle to raise the exhaust
temperature.
thru I only: the InfoCenter displays the
assist regeneration icon.
The engine ECU adjusts the exhaust
intake throttle and the injector timing to
raise the exhaust temperature.
the InfoCenter displays the high exhaust
temperature icon.
Page 3–6
For software 120-6375A
For all software revisions:
Groundsmaster ® 4300-D
16226SL Rev C