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OBJ_BUCH-2980-001.book Page 15 Friday, November 4, 2016 8:16 AM
Vibration total values a
(triax vector sum)
h
and uncertainty K determined according to
EN 60745-2-1, EN 60745-2-2.
Drilling in metal:
a
h
K
Screwdriving:
a
h
K
The vibration level given in this information sheet has been
measured in accordance with a standardised test given in
EN 60745 and may be used to compare one tool with anoth-
er. It may be used for a preliminary assessment of exposure.
The declared vibration emission level represents the main ap-
plications of the tool. However if the tool is used for different
applications, with different accessories or insertion tools or is
poorly maintained, the vibration emission may differ. This
may significantly increase the exposure level over the total
working period.
An estimation of the level of exposure to vibration should also
take into account the times when the tool is switched off or
when it is running but not actually doing the job. This may sig-
nificantly reduce the exposure level over the total working
period.
Identify additional safety measures to protect the operator
from the effects of vibration such as: maintain the tool and the
accessories, keep the hands warm, organisation of work pat-
terns.
Assembly
Battery Charging
Use only the chargers listed in the technical data. Only
these chargers are matched to the lithium-ion battery of
your power tool.
Note: The battery supplied is partially charged. To ensure full
capacity of the battery, completely charge the battery in the
battery charger before using your power tool for the first time.
The lithium-ion battery can be charged at any time without re-
ducing its service life. Interrupting the charging procedure
does not damage the battery.
The lithium-ion battery is protected against deep discharging
by the "Electronic Cell Protection (ECP)". When the battery is
empty, the machine is switched off by means of a protective
circuit: The inserted tool no longer rotates.
Do not continue to press the On/Off switch after the
machine has been automatically switched off. The bat-
tery can be damaged.
Removing the battery (see figure A)
To remove the battery 5 press the unlocking buttons 4 and
pull out the battery downwards. Do not exert any force.
Observe the notes for disposal.
Bosch Power Tools
GSR 12V-15 FC
GFA 12-X GFA 12-B GFA 12-E GFA 12-W
2
m/s
< 2.5
2
m/s
1.5
2
m/s
< 2.5
2
m/s
1.5
Changing the Tool
Before any work on the machine itself (e. g. mainte-
nance, tool change, etc.) as well as during transport
and storage, remove the battery from the power tool.
There is danger of injury when unintentionally actuating
the On/Off switch.
Inserting (see figure B)
Insert the application tool all the way into the mounting 1.
Mounting the Adapter (see figure C)
Remove the application tool.
Insert the adapter into the mounting 1. Turn the locking ring
14 until it audibly engages.
Inserting the Application Tool into the Adapter
GFA 12-E, GFA 12-X (see figure D):
Insert the application tool all the way into the mounting 1. The
application tool is held in the mounting by means of a magnet.
GFA 12-B (see figure E):
Open the drill chuck adapter 11 by turning it in direction of ro-
tation until the application tool can be inserted. Insert the
application tool.
Firmly tighten the sleeve of the drill chuck adapter 11 by turn-
ing it by hand in direction of rotation . This will automatical-
ly lock the drill chuck.
Turning the Adapter (see figure F)
Pull the locked adapter approx. 5 mm away from the power
tool. Turn the adapter to the required position and then let it
go.
Removing the Adapter (see figure G)
Remove the application tool.
Unlock the adapter in the
mounting 1.
Dust/Chip Extraction
Dust from materials such as lead-containing coatings,
some wood types, minerals and metal can be harmful to
one's health. Touching or breathing-in the dust can cause
allergic reactions and/or lead to respiratory infections of
the user or bystanders.
Certain dust, such as oak or beech dust, is considered car-
cinogenic, especially in connection with wood-treatment
additives (chromate, wood preservative). Materials con-
taining asbestos may only be worked by specialists.
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