Switching On/Off - Bosch PBH 2800 RE Notice Originale

– To change the operating mode, press the release
button (11) and turn the impact/mode selector
switch (12) until it clicks into the required position.
Note: Only change the operating mode when the power tool
is switched off. Otherwise, the power tool may become dam-
aged.
PBH 2800 RE/PBH 2900 RE, PBH 2900 FRE/PBH 3000
FRE Set
Position for hammer drilling in concrete or
stone
Position for drilling without impact in wood,
metal, ceramic and plastic and for screw-
driving and thread cutting
Vario-Lock position for adjusting the chisel
position
The impact/mode selector switch (12) will
not engage in this position.
Position for chiselling
PBH 3000-2 FRE
For the hammer drilling, Vario-Lock and chiselling operating
modes, the gear selector switch (13) must be set to first
gear.
Position for hammer drilling in concrete or
stone
Position for drilling without impact (first
gear) in wood, metal, ceramic and plastic
and for screwdriving and thread cutting
Position for drilling without impact (second
gear) in wood, metal, ceramic and plastic
Vario-Lock position for adjusting the chisel
position
The impact/mode selector switch (12) will
not engage in this position.
Position for chiselling
Setting the rotational direction (see figure L)
The rotational direction switch (10) is used to change the ro-
tational direction of the power tool. However, this is not pos-
sible while the on/off switch (8) is being pressed.
Only operate the rotational direction switch (10)
u
when the power tool is not in use.
Always set the rotational direction to clockwise rotation for
hammer drilling, drilling and chiselling.
– Clockwise rotation: To drill and to drive in screws, press
the rotational direction switch (10) all the way to the
right.
Bosch Power Tools
– Anticlockwise rotation: To loosen or unscrew screws
and nuts, press the rotational direction switch (10) all the
way to the left.

Switching On/Off

– To switch on the power tool, press the on/off switch (8).
– To lock the on/off switch (8), press and hold it while also
pushing the lock-on button (7).
– To switch off the power tool, release the on/off switch
(8). If the on/off switch (8) is locked, press the switch
first and then release it.
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 (8) to varying ex-
tents.
Applying light pressure to the on/off switch (8) results in a
low rotational speed/impact rate. Applying increasing pres-
sure to the switch increases the speed/impact rate.
Preselecting the speed/impact rate
You can preselect the required speed using the speed
preselection thumbwheel (9), even during operation.
Due to the limitation, the on/off switch (8) can only be
pushed in as far as the preselected limit.
Mechanical gear selection
PBH 3000-2 FRE
You can preselect two speed ranges with the gear selector
switch (13).
First gear: Low speed range, for hammer drilling, chiselling,
drilling with a large drilling diameter, screwdriving and
thread cutting.
Second gear: High speed range, for drilling with a small
drilling diameter.
– To change the gear, press the release button (11) on the
impact/mode selector switch (12) and turn the impact/
mode selector switch to the "drilling" position. Then press
the release button (14) on the gear selector switch (13)
and turn the gear selector switch to second gear.
Note: The impact/mode selector switch (12) must only be
turned when the power tool is switched off. The power tool
must also be switched off when the gear selector switch
(13) is being turned.
Hammer drilling and chiselling are only possible in first gear.
The special shape of the gear selector switch (13) and im-
pact/mode selector switch (12) prevents switching to
second gear in these operating modes.
Before changing the operating mode from drilling to hammer
drilling, Vario-Lock or chiselling, the gear selector switch
(13) must be switched back to first gear.
Changing the chiselling position (Vario-Lock)
You can lock the chisel in 36 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 (12) to the "Vario-
Lock" position.
English | 21
1 609 92A 663 | (14.01.2021)