Kubota M7131, Operator'S Manual

Page: 110 / 298

78 OPERATING THE ENGINE
C
PM Warning Level and Required Procedures
During Auto Regeneration Mode when the PM level has built up in the DPF, the regeneration cycle will begin automatically.
If the regeneration cycle is interrupted or the regeneration conditions are not satisfied, the buzzer starts sounding and the
indicator display changes in response to the PM level in order to prompt the operator to perform the required procedure
listed below.
A
Once the regeneration level has been reached, immediately perform the required procedure for regeneration.
Interrupting the regeneration cycle or continued operation by ignoring the warning signs may cause DPF and engine
damage.
Auto Mode
DPF system status Required procedure
PM warning level:
1
The regeneration indicator starts
flashing. A specific amount of PM has accumulated
in the DPF muffler.
Continue to work the tractor to raise the
DPF temperature.
Buzzer: Not sounding
The RPM increase indicator starts
flashing. Continue the work and increase the engine
rpm until the indicator turns "OFF".
The regeneration indicator will stop
flashing and remain "ON" constantly. The regeneration cycle begins and
continues until cycle is complete then the
indicator will turn "OFF".
PM warning level:
2-1
If the regeneration cycle was interrupted or conditions are not satisfied for regeneration then
DPF system is now in Level 2.
Buzzer: Sounding every
5 seconds The regeneration indicator starts
flashing. Start the regeneration, referring to PM
warning level: 1 above.
Now the parked regeneration indicator
starts flashing, and the parked
regeneration can also be started.
If the regeneration conditions are not met,
perform the parked regeneration.
A
For the procedure, refer to "Operating
Procedure for Parked Regeneration".
PM warning level:
2-2
The RPM increase indicator starts
flashing.
Buzzer: Sounding every
3 seconds
The parked regeneration indicator starts
flashing.
PM warning level:
3
If the regeneration fails in the warning level 2:
The engine warning indicator starts
flashing. Immediately discontinue working the
tractor and begin the parked regeneration
cycle process.
A
For the procedure, refer to "Operating
Procedure for Parked Regeneration".
At this PM warning level, the Auto
Regeneration Mode does not function.
If the tractor is operated further, the
regeneration cycle will be disabled.
Buzzer: Sounding every
1 second
Engine output: 50%
The parked regeneration indicator starts
flashing.
PM warning level:
4
If the parked regeneration is interrupted or the tractor is continuously operated in the warning
level 3:
Buzzer: Sounding every
1 second
Engine output: 50% The engine warning indicator remains
constantly "ON". Immediately move the tractor to a safe
place and park it there and turn the engine
"OFF".
Contact your local KUBOTA Dealer.
A At this level, never continue to operate
the tractor otherwise damage will result
to the DPF and engine.