Practical Advice; Maintenance And Service; Maintenance And Cleaning - Bosch UniversalHammer 18V Originalbetriebsanleitung

18 | English
Operation
Start-up
Setting the Operating Mode
The operating mode of the power tool is selected using the
impact/mode selector switch (6).
– To change the operating mode, turn the impact/mode se-
lector switch (6) to the required position.
Note: Only change the operating mode when the power tool
is switched off. Otherwise, the power tool may become dam-
aged.
Position for hammer drilling into concrete
or stone
Position for drilling without impact in wood,
metal, ceramic and plastic and for screw-
driving
Vario-Lock position for adjusting the chisel
position
The impact/mode selector switch (6) will
not engage in this position.
Position for chiselling
Setting the rotational direction (see figure E)
The rotational direction switch (8) is used to change the ro-
tational direction of the power tool. However, this is not pos-
sible while the on/off switch (9) is being pressed.
Only operate the rotational direction switch (8) when
u
the power tool is not in use.
Always set the rotational direction to clockwise rotation for
hammer drilling, drilling and chiselling.
– Clockwise: To drill and to drive in screws, press the rota-
tional direction switch (8) all the way to the left.
– Anticlockwise: To loosen and unscrew screws and nuts,
press the rotational direction switch (8) all the way to the
right.
Switching On/Off
– To switch on the power tool, press the on/off switch (9).
The worklight (12) lights up when the on/off switch (9) is
lightly or fully pressed, allowing the work area to be illumin-
ated in poor lighting conditions.
– To switch off the power tool, release the on/off switch
(9).
For low temperatures, the power tool reaches the full ham-
mer/impact capacity only after a certain time.
1 609 92A 852 | (22.07.2022)
Adjusting the Speed/Impact Rate
You can adjust the speed/impact rate of the power tool when
it is on by pressing in the on/off switch (9) to varying ex-
tents.
Applying light pressure to the on/off switch (9) results in a
low rotational speed/impact rate. Applying increasing pres-
sure to the switch increases the speed/impact rate.
Changing the chiselling position (Vario-Lock)
You can lock the chisel in 42 different positions, so you can
select the optimum working position for each task.
– Insert the chisel into the tool holder.
– Turn the impact/mode selector switch (6) to the "Vario-
Lock" position.
– Turn the application tool to the required chisel position.
– Turn the impact/mode selector switch (6) to the "chis-
elling" position. With this, the tool holder is locked.
– Set the rotational direction for chiselling to clockwise.

Practical Advice

Setting the drilling depth (see figure F)
You can use the depth stop (16) to set the required drilling
depth X.
– Press the button for depth stop adjustment (5) and insert
the depth stop into the auxiliary handle (15).
The fluting on the depth stop (16) must face downwards.
– Insert the SDS-plus application tool into the SDS-plus tool
holder (2) to the stop. Otherwise, the movability of the
SDS-plus drilling tool can lead to incorrect adjustment of
the drilling depth.
– Pull the depth stop far enough out that the distance
between the drill bit tip and the edge of the depth stop
corresponds to the required drilling depth X.
Overload clutch
If the application tool jams or snags, the power trans-
u
mission to the drill spindle will be interrupted. Always
hold the power tool firmly with both hands to with-
stand the forces this may create and adopt a position
with stable footing.
Switch the power tool off immediately and remove the
u
blocked drilling tool if the power tool becomes
blocked. Switching on when the drilling tool is blocked
may cause high torque reactions.
Vibration damping
The integrated vibration damping function re-
duces the generated vibration.

Maintenance and Service

Maintenance and Cleaning

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-
Bosch Power Tools