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Do not modify the machine without authorization.
Never attempt to modify the air inlet and exhaust
parts such as the air duct, muffler filter and the
exhaust outlet. Also never attempt to disassemble
the muffler filter. Avoid giving shocks on the muffler
filter by striking elements with other objects or
dropping the elements. Failure to do so may affect
the exhaust gas purifying device, possibly damaging
it or lowering its performance.
PM combustion may generate white smoke during
muffler filter regeneration. Do not attempt to
do muffler filter manual regeneration in a badly
ventilated indoors.
f
NOTE:
The muffler filter traps PM, and it is automatically
regenerated by burning PM when the set amount of PM
is accumulated in the filter. It is called auto-regeneration.
The auto-regeneration is performed at random times
depending on the machine operating condition. The auto-
regeneration may start during operation of the machine;
you can continue to operate the machine. (refer to 1-23)
Turning the pilot control shut-off lever to LOCK position
while performing auto-regeneration may change the
engine sound and may increase the engine speed, this is
not a malfunction.
Do not stop the engine during regeneration unless
absolutely necessary.
The auto-regeneration may be terminated depending on
the machine operating condition. At this time, the muffler
filter regeneration request indicator will be lit. This mark
indicates that the muffler filter manual regeneration is
required. Perform manual regeneration following the
specified procedure. (refer to 1-25)
Usually, auto-regeneration starts 8 hours after the
previous regeneration. (either auto or manual) The auto-
regeneration is performed at random times depending on
the machine operating condition.
OPERATOR'S STATION
1-4
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