Bosch Professional GSB 18 V-21 Original Instructions Manual page 17

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Impact drilling into concrete:
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The vibration level and noise emission value given in these
instructions have been measured in accordance with a
standardised measuring procedure and may be used to com-
pare power tools. They may also be used for a preliminary
estimation of vibration and noise emissions.
The stated vibration level and noise emission value repres-
ent the main applications of the power tool. However, if the
power tool is used for other applications, with different ap-
plication tools or is poorly maintained, the vibration level
and noise emission value may differ. This may significantly
increase the vibration and noise emissions over the total
working period.
To estimate vibration and noise emissions accurately, the
times when the tool is switched off or when it is running but
not actually being used should also be taken into account.
This may significantly reduce vibration and noise emissions
over the total working period.
Implement additional safety measures to protect the oper-
ator from the effects of vibration, such as servicing the
power tool and application tools, keeping their hands warm,
and organising workflows correctly.
Assembly
Remove the battery from the power tool before carry-
u
ing out work on the power tool (e.g. maintenance,
changing tool, etc.). The battery should also be re-
moved for transport and storage. There is risk of injury
from unintentionally pressing the on/off switch.
Charging the Battery
Use only the chargers listed in the technical data. Only
u
these chargers are matched to the lithium-ion battery of
your power tool.
Note: The battery is supplied partially charged. To ensure
full battery capacity, fully charge the battery in the charger
before using your power tool for the first time.
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 the "Electronic Cell Protection (ECP)". When the battery
is discharged, the power tool is switched off by means of a
protective circuit: The application tool no longer rotates.
Do not continue to press the On/Off switch after the
u
power tool has automatically switched off. The battery
can be damaged.
Bosch Power Tools
GSR 18V-21
2
m/s < 2.5
2
m/s 1.5
2
m/s
2
m/s
Removing the Battery
The battery (7) is equipped with two locking levels to pre-
vent the battery from falling out when pushing the battery re-
lease button (8) unintentionally. As long as the battery is in-
serted in the power tool, it is held in position by means of a
spring.
To remove the battery (7), press the release button (8) and
pull the battery out of the power tool. Do not use force to
do this.
Battery Charge Indicator
The green LEDs on the battery charge indicator (16) indic-
ate the state of charge of the battery (7). For safety reasons,
it is only possible to check the state of charge when the
power tool has been stopped.
Press the battery charge indicator button (15) to show the
state of charge. This is also possible when the battery is re-
moved.
If no LED lights up after pressing the battery charge indicator
button (15), the battery is defective and must be replaced.
Battery Model GBA 18V... (see figure D)
LEDs
3× continuous green light
2× continuous green light
1× continuous green light
3× flashing green light
Battery Model ProCORE18V... (see figure E)
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
Changing the tool (see figure A)
Remove the battery from the power tool before carry-
u
ing out work on the power tool (e.g. maintenance,
changing tool, etc.). The battery should also be re-
moved for transport and storage. There is risk of injury
from unintentionally pressing the on/off switch.
Open the keyless chuck (2) by turning it in the direction of
rotation ➊ until the tool can be inserted. Insert the tool.
English | 17
GSB 18V-21
< 2.5
1.5
– 11.0
– 1.5
Capacity
60−100 %
30−60 %
5−30 %
0−5 %
Capacity
80−100 %
60−80 %
40−60 %
20−40 %
5−20 %
0−5 %
1 609 92A 4SZ | (26.11.2019)