Kubota L3301, Руководство оператора

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8. Press the DPF-INHIBIT-switch .
The DPF-INHIBIT-switch-lamp turns “OFF” .
When the regeneration conditions are satisfied
(step 2. to step 5. and step 7. mentioned
previously), the parked-regeneration-switch-lamp
starts flashing.
9. Press the parked-regeneration-switch to
start the regeneration cycle.
The parked-regeneration-switch-lamp will stop
flashing and remain
“ON” constantly during the
regeneration cycle.
The engine rpm will automatically rise, and the
regeneration process will begin.
Regeneration process
a. Both indicators and stay “ON”
while regenerating the DPF.
b. Indicators and turn “OFF” when
the regeneration cycle is complete.
c. After the lamps and turn “OFF” ,
normal tractor work may resume.
10. When driving in regeneration-inhibit-mode, press
the DPF-INHIBIT-switch to turn on the DPF-
INHIBIT-switch-lamp.
NOTE :
• During the regeneration cycle, do not touch
the levers and switches (mentioned
previously in step 2., step 3., and step 4.),
nor change the engine rpm other than for an
emergency
stop. Otherwise, the
regeneration will be interrupted.
• Never leave the tractor when the parked
regeneration process is activated.
• If the parked regeneration cycle is
interrupted, the engine rpm is fixed at the
idling level for about 30 seconds. For 30
seconds when the engine rpm is fixed, keep
the hand-throttle-lever and foot-throttle-
pedal at the idle position. Do not move the
hand-throttle-lever and foot-throttle-pedal.
The hand-throttle-lever and foot-throttle-
pedal will function again in 30 seconds.
4. Tips on diesel particulate filter
(DPF) regeneration
• Operation
The higher in speed or load the engine operates,
the higher the exhaust temperature rises. As a
result, particulate matter (PM) inside the DPF is
consumed, therefore the regeneration process is
required less frequently over time.
The lower in speed or load the engine operates, the
lower the exhaust temperature. Accordingly, less
particulate matter (PM) inside the DPF is consumed
and more accumulation of PM will occur, which
requires frequent regeneration. Therefore, avoid
prolonged idling if possible.
• Necessary conditions for regeneration
When the following conditions are all satisfied,
regeneration will start. However, if even one
condition is deviated from the following conditions
during regeneration process, the regeneration will
be interrupted.
– The engine coolant temperature.
– The DPF temperature.
– The engine speed is 1200 rpm or higher.
• Usually it takes 15-20 minutes to complete the
regeneration cycle.
Actual regeneration time may depend on ambient
temperature, exhaust temperature and engine
speed.
• It is recommended to perform the regenerating
while the engine is warm.
• Do not unnecessarily start and interrupt the
regeneration process. Otherwise, a small amount of
fuel becomes mixed with the engine oil, which
degrades the oil quality.
• While the DPF is being regenerated, the air-flow-
rate of engine is automatically limited to keep up
the exhaust temperature. Because of limit of the air-
flow-rate of engine, the engine may sound
differently, but this sound is normal for this engine.
• Just after the regeneration has ended, the DPF
muffler remains hot. It is advisable to keep the
engine running for about 5 minutes to allow cooling
of the exhaust components.
OPERATING THE ENGINE EXHAUST AFTERTREATMENT DEVICES
50
L3301,L3901