Bosch GBH 18V-28 C Professional Notice Originale page 11

charge the rechargeable battery before using your tool for
the first time.
Inserting the Battery
Push the charged battery into the battery holder until it
clicks into place.
Removing the Battery
To remove the rechargeable battery, press the battery re-
lease button and pull the battery out. Do not use force to do
this.
The rechargeable battery has two locking levels to prevent
the battery from falling out if the battery release button is
pressed unintentionally. The rechargeable battery is held in
place by a spring when fitted in the power tool.
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.
The state of charge of the battery is also displayed on the
user interface Status indications.
Battery model GBA 18V...
LED
3× continuous green light
2× continuous green light
1× continuous green light
1× flashing green light
Battery model ProCORE18V...
LED
5 × continuous green light
4 × continuous green light
3 × continuous green light
2 × continuous green light
1 × continuous green light
1 × flashing green light
Bosch Power Tools
Recommendations for Optimal Handling of the
Battery
Protect the battery against moisture and water.
Only store the battery within a temperature range of −20 to
50 °C. Do not leave the battery in your car in the summer, for
example.
Occasionally clean the ventilation slots on the battery using a
soft brush that is clean and dry.
A significantly reduced operating time after charging indic-
ates that the battery has deteriorated and must be replaced.
Follow the instructions on correct disposal.
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.
Inserting the Bluetooth® Low Energy Module
to
GCY 42 (Accessory)
Read the corresponding operating instructions for informa-
tion about the Bluetooth® Low Energy Module GCY 42.
Auxiliary handle
Do not operate your power tool without the auxiliary
u
handle (20).
Make sure that the auxiliary handle is always
u
tightened. Otherwise you could lose control of the power
tool when working.
Swivelling the auxiliary handle (see figure A)
Capacity
You can swivel the auxiliary handle (20) to any angle for a
safe work posture that minimises fatigue.
60–100 %
– Turn the lower gripping end of the auxiliary handle (20)
30–60 %
anticlockwise and swivel the auxiliary handle (20) into
5–30 %
the required position. Then turn the lower gripping end of
0–5 %
the auxiliary handle (20) clockwise to retighten it.
Make sure that the retaining strap of the auxiliary handle
slots into the corresponding groove of the housing.
Selecting drill chucks and tools
Hammer drilling and chiselling require SDS-plus application
tools that are inserted into the SDS-plus drill chuck.
Capacity
For drilling without impact in wood, metal, ceramic and
80–100 %
plastic as well as for screwdriving, tools without SDS‑plus
60–80 %
are used (e.g. cylindrical shank drill bits). For these tools, a
keyless chuck or a keyed chuck are required.
40–60 %
20–40 %
Changing the drill chuck
5–20 %
Inserting/removing the keyed chuck
0–5 %
GBH 18V-28 C
You must use a suitable drill chuck (keyed or keyless chuck,
accessories) to work with tools that do not have SDS-plus
(e.g. cylindrical shank drill bits).
English | 11
1 609 92A 8H0 | (27.03.2023)