Toro Groundsmaster 7210 Series Operator's Manual page 29

Types of Diesel Particulate Filter Regeneration
Types of diesel particulate filter regeneration that are performed while the machine is operating:
Type of Regeneration
Passive
Assist
Reset
Types of diesel particulate filter regeneration that require you to park the machine:
Type of Regeneration
Parked
Conditions that cause DPF regeneration
Occurs during normal operation of the machine at
high-engine speed or high-engine load
Occurs because of low-engine speed, low-engine
load, or after the computer detects the DPF is
becoming obstructed with soot
Occurs every 100 hours
Also occurs after assist regeneration only if the
computer detects that assist regeneration did not
sufficiently reduce the soot level
Conditions that cause DPF regeneration
Occurs because the computer detects back
pressure in the DPF due to soot buildup
Also occurs because the operator initiates a parked
regeneration
May occur because you set the InfoCenter to inhibit
reset regeneration and continued operating the
machine, adding more soot when the DPF already
needs a reset regeneration
May result from using the incorrect fuel or engine oil
DPF description of operation
• The InfoCenter does not display an icon indicating
passive regeneration.
• During passive regeneration, the DPF processes
high-heat exhaust gasses, oxidizing harmful
emissions, and burning soot to ash.
Refer to Passive DPF Regeneration (page
• The InfoCenter does not display an icon indicating
assist regeneration.
• During assist regeneration, the engine computer
adjusts the engine settings to raise the exhaust
temperature.
Refer to Assist DPF Regeneration (page
• When the high exhaust-temperature icon
is displayed in the InfoCenter, a regeneration is in
progress.
• During reset regeneration, the engine computer
adjusts the engine settings to raise the exhaust
temperature.
Refer to Reset Regeneration (page
DPF description of operation
• When the reset-standby/parked or recovery
regeneration icon
displays in the InfoCenter, a regeneration is
requested.
• Perform the parked regeneration as soon as
possible to avoid needing a recovery regeneration.
• A parked regeneration requires 30 to 60 minutes
to complete.
• You must have at least a 1/4 tank of fuel in the
tank.
• You must park the machine to perform a parked
regeneration.
Refer to Parked or Recovery Regeneration (page
34).
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ADVISORY