Bosch Professional GBL 18V-120 Original Instructions Manual page 13

The lithium-ion battery can be charged at any time without
reducing its service life. Interrupting the charging process
does not damage the battery.
The lithium-ion battery is protected against deep discharge
by "Electronic Cell Protection (ECP)". A protective circuit
switches the power tool off when the battery is drained.
Do not continue to press the on/off switch after the
u
tool has been automatically switched off. This can
damage the battery.
Battery charge indicator
The green LEDs on the battery charge indicator indicate the
state of charge of the battery. For safety reasons, it is only
possible to check the state of charge when the power tool is
not in operation.
Press the button for the battery charge indicator or
show the state of charge. This is also possible when the bat-
tery is removed.
If no LED lights up after pressing the button for the battery
charge indicator, then the battery is defective and must be
replaced.
Battery model GBA 18V...
LEDs
3× continuous green light
2× continuous green light
1× continuous green light
1× flashing green light
Battery model ProCORE18V...
LEDs
5× continuous green light
4× continuous green light
3× continuous green light
2× continuous green light
1× continuous green light
1× flashing green light
Removing the battery (see figures A1–A2)
The battery (3) is equipped with two locking levels to pre-
vent the battery from falling out if the battery release
button (7) is pressed unintentionally. As long as the battery
is inserted in the power tool, it is held in position by means
of a spring.
– To remove the battery (3), press the release button (7)
and pull the battery upwards and out of the power tool.
Do not use force to do this.
Bosch Power Tools
Follow the instructions on correct disposal.
Fitting the blower accessories (see figures B1–
B3)
Remove the battery before cleaning or performing
u
maintenance work on the power tool, before making
tool adjustments, changing accessories or storing the
power tool. This safety measure prevents the power tool
from being started accidentally.
See the illustration for ways of combining the different
blower accessories.
– Insert the bayonet lock (12) of the accessory firmly into
the recesses (8) of the motor housing or into the
recesses(8) of the extension tube (9).
– Turn the bayonet lock a quarter turn clockwise.
to
Fitting the dust collection tube
When blowing out drill holes, the drilling debris is blown in
the direction of the operator. For this reason, it is recom-
mended that you fit the dust collection tube (11) over the
drill hole nozzle (10).
– Place the recesses (13) of the dust collection tube (11)
over the outer bayonet lock (12) of the drill hole nozzle
(10).
– Turn the dust collection tube (11) a quarter turn clock-
wise.
Capacity
60−100 %
Operation
30−60 %
Remove the battery before cleaning or performing
u
5−30 %
maintenance work on the power tool, before making
0−5 %
tool adjustments, changing accessories or storing the
power tool. This safety measure prevents the power tool
from being started accidentally.
Starting Operation
Switching on/off
– To switch on the power tool, press the on/off switch (1)
Capacity
into position I or II.
80−100 %
Position I: For blowing light materials.
60−80 %
Position II: For blowing heavy materials.
40−60 %
– To switch off, push the on/off switch (1) into the stop in
position "0".
20−40 %
5−20 %
Working Advice
0−5 %
Never blow dirt in the direction of bystanders.
Always hold the power tool approx. 3 cm above ground
when working.
Do not blow hot, flammable or explosive material.
Ensure that the air inlet (4) cannot suck in any impurities
while blowing is taking place.
English | 13
1 609 92A 6R6 | (19.10.2021)