Dpf Regeneration Process - Kubota MX Series Operator's Manual

EXHAUST AFTERTREATMENT DEVICES
IMPORTANT :
• If any engine oil other than CJ-4 is used, the
DPF may become clogged earlier than expected
and the fuel economy may drop.
Prohibition of unnecessary idling operation
Generally, the lower the engine speed, the lower the
exhaust gas temperature is, so the PM contained in
exhaust gas will not be burnt, and begins to
accumulate. Therefore, do not idle unnecessarily.
Regeneration
When the regeneration indicator starts flashing or the
regeneration buzzer starts sounding, immediately
perform the required regeneration procedure.
IMPORTANT :
• Interrupting the
continuing operation while ignoring the warning
signs may cause DPF and engine damage.

3. DPF regeneration process

You can perform the DPF regeneration process by
choosing the "Auto Regeneration" mode or the
"Regeneration Inhibit" mode according to conditions of
your job.
For jobs not affected by hot gases emitted during
regeneration, "Auto Regeneration" mode is advisable.
(1) DPF INHIBIT switch
(2) Parked regeneration switch
(3) Regeneration indicator
(4) Parked regeneration indica-
tor
Auto Regeneration Mode
When starting the engine
unnecessary), the "Auto Regeneration" mode is
automatically activated.
With the "Auto Regeneration" mode on, when a specific
amount of PM has accumulated and the regeneration
conditions are satisfied, the DPF will be automatically
regenerated whether the tractor is in motion or parked.
(See Tips on diesel particulate filter (DPF) regeneration
on page 57)
By effect of auto regeneration, work efficiency is
improved. For details of auto regeneration, see
MX5400,MX6000
regeneration cycle
(5) Engine rpm increase indica-
tor
(6) Engine warning indicator
(switch operation
Regeneration
Regeneration mode on page 52.
Regeneration inhibit mode
After starting the engine, if the DPF-INHIBIT-switch is
pressed to turn on the DPF-INHIBIT-switch-lamp, the
"Regeneration Inhibit" mode will be activated.
With "Regeneration Inhibit" mode on, the PM which has
accumulated inside the DPF will not be burnt, unless
the operator performs the regeneration work manually.
The "Regeneration Inhibit" mode is effective for work in
poorly ventilated work spaces.
For details
Regeneration operating procedure for Regeneration
Inhibit mode on page 54.
NOTE :
or
• If the engine is stopped once, the "Auto
Regeneration" mode will be activated.
is
OPERATING THE ENGINE
operating procedure
of regeneration prohibition,
for Auto
see
51