Toro Groundmaster Series Service Manual page 69

Regeneration (continued)
Soot Accumulation
Ash Accumulation
Groundsmaster ® 3200, 3300 and 3310
19240SL Rev A
Types of regeneration that are performed manually (while the machine is
stationary)
Type
Parked
Recovery
Refer to the traction unit Operator's Manual for additional DPF regeneration
information, and instructions for using the InfoCenter DPF Regeneration Menus.
If the types of regenerations that are performed automatically (while the machine
is operating) are not allowed to complete, soot will continue to accumulate in
the soot filter. When enough soot accumulates, the engine ECU will generate
an engine fault to prompt a parked or recovery regeneration. In addition to an
engine fault appearing on TDM display/controller screen, the engine output
power will be reduced.
Ash is a result of the regeneration processes. The lighter ash is discharged
through the exhaust system, while the heavier ash collects in the soot filter.
When enough ash accumulates in the soot filter, the engine ECU will generate an
Conditions
Occurs when exhaust
back pressure in the
DPF increases due to
continued soot buildup.
May occur because the
InfoCenter was set to
inhibit reset regeneration
and machine operation
continued, adding more
soot to the DPF after a
reset regeneration was
requested.
May be caused by
prolonged operation at
low engine speed, low
engine load, or the use of
incorrect fuel or engine oil.
Can be initiated when
prompted by the engine
ECU or manually after a
minimum of 50 hours of
engine operation.
Occurs when exhaust
back pressure in the DPF
increases due to soot
buildup reaching a critical
level.
May occur because
parked regeneration
requests were ignored
and machine operation
continued, adding more
soot to the DPF after a
parked regeneration was
requested.
Can only be initiated when
prompted by the engine
ECU.
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Description
The display screen displays
the stationary regeneration icon.
Manually initiate a parked regeneration
as soon as possible. A parked
regeneration will take approximately
30 to 60 minutes and should not be
started with less than 1/4 tank of fuel.
The machine must remain stationary
(cannot be operated) during the entire
parked regeneration process.
The display screen displays
the stationary regeneration icon.
Manually initiate a recovery
regeneration as soon as possible.
A recovery regeneration will take
approximately 3 hours and should not
be started with less than 1/2 tank of fuel.
The machine must remain stationary
(cannot be operated) during the entire
recovery regeneration process.
Engine: General Information