The table on the mobile dust extractor
explains this connection for the mini
mum required extraction volume of
the respective hose diameter. If the
rate is below the respective extraction
volume, a warning signal is emitted.
* only for EU versions of CT AC
Possible causes
Solution
Value set on the suction power adjust
er
[1-13]
is too low.
Set the suction power adjuster to a higher value (see
Chapter
7.2
).
Rotary knob
[1-15]
not set to the cor
rect hose diameter.
Set the knob to the correct hose diameter (see Chap
ter
7.1
).
Suction hose blocked or kinked.
Remove blockage or kink.
Filter bag full.
Insert a new filter bag (see Chapter
9.1
).
Filter element clogged.
Change the filter element (see Chapter
9.1
).
Only AUTOClean:
Clean filter element (see chapter
8.1
).
Monitoring electronics malfunction.
Send to a Festool service workshop for repair.
Wet extraction.
Functional reliability not affected, no actions required.
8 Working
8.1
AUTOClean - Cleaning the main filter
Only in conjunction with disposal bag
(compliance with dust class ’L/M’). Not
suitable for wet extraction!
Automatic cleaning
Activate using the rotary knob
[1-14]
.
Manual cleaning
Turn the switch
[1-12]
to the
AC
symbol.
Full manual cleaning [4]
► Cover the end of the nozzle or suction hose
with your hand or closing slide CT-VS
(497926).
► Turn the switch
[1-12]
to the
AC
symbol.
8.2
Extracting dry materials
CAUTION
Hazardous dust
Damage to the respiratory passage
► Always use a filter or disposal bag!
► Only use when volumetric flow monitoring
is functional (dust class M only).
When extracting large quantities of oak
or beech wood dust or dust that exceeds
the permitted limit values, only extract from a
single machine (electric or air tool).
Observe
the following when extracting dust
generated by operating electric power tools:
Ensure there is adequate ventilation! Observe
regional regulations!
Limit values:
exhaust air max. 50% of the clear
air volume
Formula:
room volume V
R
x air renewal rate L
W
English
16