Bosch GAS 12-40 MA Professional Manual Original página 24

24 | English
Do not carry the dust extractor by the carrying handle
u
of the attached L-Boxx. The dust extractor is too heavy
for the carrying handle of the L-Boxx. There is a risk of in-
jury and damage if you do this.
Installing the Retractable Guide Handle
(see figures I–J)
Note: The retractable guide handle cannot be removed.
When assembling, ensure that the guide handle is aligned
correctly.
Before inserting the guide handle (15), align it using the R
(right) and L (left) markings.
Insert the guide handle (15) into the guide rails (39).
Press the guide handle (15) down to the stop line until the
guide handle audibly clicks into place.
Press the snap fastener (14) to change the length of the
guide handle (15).
Operation
Pull the plug out of the socket before cleaning or per-
u
forming maintenance on the vacuum cleaner, making
tool adjustments, changing accessories or putting
away the vacuum cleaner. This safety measure prevents
the vacuum cleaner from being started accidentally.
Start-up
Pay attention to the mains voltage. The voltage of the
u
power source must correspond with the data on the type
plate of the vacuum cleaner.
Make sure you inform yourself about the applicable
u
regulations/laws on how to handle harmful types of
dust in your country.
The dust extractor may be used for vacuuming and extract-
ing the following materials:
– Dusts with an exposure limit of ≥ 0.1 mg/m
Products that are only sold in AUS and NZ: Use a resid-
u
ual current device (RCD) with a nominal residual current
of 30 mA or less.
The dust extractor must categorically not be used in poten-
tially explosive areas.
To ensure optimum suction power, you must always fully un-
wind the vacuum hose (30) from the top part of the dust ex-
tractor (16).
Adjusting the Suction Power
You can adjust the suction power to a continuously variable
degree using the suction power regulator (11).
Set the suction power regulator (11) to maximum suction
power when completing applications that generate a high
level of dust.
Set the suction power regulator (11) to the reduced suction
power position when completing applications that generate
a low level of dust, and also to regulate the suction between
the connected power tool and the surface of the workpiece
(e.g. when sanding).
1 609 92A 91Y | (02.02.2024)
Volume Flow Monitoring
The dust extractor is fitted with volume flow monitoring. In
the "extraction" operating mode, the volume flow monitoring
is fixed to a value of 20 m/s.
If the value falls below this, e.g. due to accumulated dirt in
the vacuum hose, a full fleece filter bag or a clogged flat-
pleated filter, one of the LED indicators (7) 22 or 28 will
flash and an audible alarm signal will sound. If this happens,
switch off the dust extractor and check it as described in the
"Rectifying faults" section.
Note: When working with power tools that have a low air
feed into the vacuum hose (e.g. jigsaws, sanders, etc.), an
audible alarm signal may sound. To avoid the warning mes-
sage, it is recommended that you also use a suitable dust ex-
traction adapter with a false air intake from the range of ac-
cessories.
Adjusting the hose diameter
Hose diameter
22 mm
28 mm
To regulate the suction power, select the hose diameter
used.
Plug socket on the dust extractor
Observe the permitted connected load of the plug
u
socket on the dust extractor. Exceeding the maximum
permitted connected load can cause the dust ex-
tractor to be overloaded. The motor protection device
will be triggered. Send the dust extractor to an
authorised Bosch after-sales service centre.
The plug socket for power tools (4) is live as soon as the
3
mains plug of the dust extractor is plugged into the socket
and the main switch is in position 1. It can be used as an ex-
ternal power connection on the dust extractor, e.g. when
working with extraction systems. In position 1+, the auto-
matic start/stop feature of the dust extractor is activated.
The dust extractor can be switched on remotely via the con-
nected power tool.
Dry vacuuming
Vacuuming up dust deposits
Volume flow setting
Press the vacuum hose diameter button (8).
LED indicator (7) 22 or 28 will light up.
To switch on the dust extractor, turn the main
switch (2) to position 1.
To switch off the dust extractor, turn the
main switch (2) to position 0.
Bosch Power Tools
3
28 m /h
3
45 m /h