Bosch GSB Professional 18V - 85 C Original Instructions Manual page 18

OBJ_BUCH-2883-001.book Page 18 Tuesday, July 26, 2016 3:35 PM
18 | English
Adjusting the Drilling Depth
The required drilling depth X can be set with the depth stop 3.
Loosen the wing bolt for the depth stop adjustment 6 and in-
sert the depth stop rod into the auxiliary handle 4.
Pull out the depth stop until the distance between the tip of
the drill bit and the tip of the depth stop corresponds with the
desired drilling depth X.
Retighten the wing bolt for the depth stop adjustment 6 again.
Changing the Tool (see figure A)
 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.
Open the keyless chuck 2 by turning in rotation direction ,
until the tool can be inserted. Insert the tool.
Firmly tighten the collar of the keyless chuck 2 by hand in ro-
tation direction . This automatically locks the drill chuck.
Dust/Chip Extraction
 Dust from materials such as lead-containing coatings,
some wood types, minerals and metal can be harmful to
one's health and cause allergic reactions, lead to res-
piratory infections and/or cancer. Materials containing
asbestos may only be worked by specialists.
– Provide for good ventilation of the working place.
– It is recommended to wear a P2 filter-class respirator.
Observe the relevant regulations in your country for the
materials to be worked.
 Prevent dust accumulation at the workplace. Dust can
easily ignite.
Operation
Starting Operation
Inserting the battery
Note: Use of batteries not suitable for the machine can lead to
malfunctions of or cause damage to the power tool.
Set the rotational direction switch 16 to the centre position in
order to avoid unintentional starting. Insert the charged bat-
tery 11 into the handle so that it can be felt to engage and fac-
es flush against the handle.
Reversing the rotational direction (see figure B)
The rotational direction switch 16 is used to reverse the rota-
tional direction of the machine. However, this is not possible
with the On/Off switch 17 actuated.
Rotate clockwise: Move the rotational direction switch
16 on both sides up to the stop into position
Rotate anticlockwise: Move the rotational direction
switch 16 on both sides up to the stop into position
1 609 92A 2SK | (26.7.16)
Setting the operating mode
Drilling
Set the operating mode selector switch 8 to the
"drilling" symbol.
Screwdriving
Set the operating mode selector switch 8 to the
"screwdriving" symbol.
Impact drilling (GSB 18V-85 C)
Set the operating mode selector switch 8 to the
"impact drilling" symbol.
Switching On and Off
To start the machine, press the On/Off switch 17 and keep it
pressed.
The LED 14 lights up when the On/Off switch 17 is halfway or
fully pressed, and enables illumination of the screwing loca-
tion in unfavourable light conditions.
To save energy, only switch the power tool on when using it.
Adjusting the Speed
The speed of the switched-on power tool can be variably
adjusted, depending on how far the On/Off switch 17 is
pressed.
Light pressure on the On/Off switch 17 results in a low rota-
tional speed. Further pressure on the switch results in an in-
crease in speed.
Setting the torque (Applies to screwdriving mode)
With the torque preselection ring 7, the required torque can
be preselected in 25 steps. The inserted tool is stopped as
soon as the set torque is reached.
Gear selection, mechanical
 Actuate the gear selector 9 only when the machine is at
a standstill.
1st gear:
Low speed range; for working with large drilling diameters.
2nd gear:
High speed range; for drilling with small drilling diameter.
Temperature Dependent Overload Protection
In normal conditions of use, the power tool cannot be over-
loaded. If the power tool is overloaded or not kept within the
permitted operating temperature range, the power output is
reduced or the power tool is switched off. The power tool will
not run at full power output again until the permitted operat-
ing temperature has been reached.
Activation of the temperature-controlled overload protector
is indicated by the LED 14 on the power tool lighting up red.
To reach the permitted operating temperature range again,
. either switch the gear selector 9 to gear 1, run the power tool
at no load or wait until the LED 14 extinguishes. When the LED
14 has extinguished, the tool has reached the permitted op-
.
erating temperature range again.
Bosch Power Tools