Bosch PSR 18 LI-2 - Инструкция по эксплуатации - Страница 16

16

 | English 

1 609 92A 1HB | (23.7.15)

Bosch Power Tools

Changing the Tool (see figure A)



Before any work on the machine (e. g., maintenance, 
tool change, etc.) as well as during transport and stor-
age, set the rotational direction switch to the centre 
position. 

Unintentional actuation of the On/Off switch can 

lead to injuries.

The drill spindle is locked when the On/Off switch 

5

 is not 

pressed. This makes quick, convenient and easy changing of 
the tool in the drill chuck possible.

Open the keyless chuck 

1

 by turning in rotation direction 



, 

until the tool can be inserted. Insert the tool.

Firmly tighten the collar of the keyless chuck 

1

 by hand in ro-

tation direction 



 until the locking action (“click”) is no longer 

heard. This automatically locks the chuck.

The locking is released again to remove the tool when the col-
lar is turned in the opposite direction.

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.
– 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 mate-
rials to be worked.



Prevent dust accumulation at the workplace. 

Dust can 

easily ignite.

Operation

Starting Operation

Inserting the battery



Use only original Bosch lithium-ion batteries with the 
voltage listed on the nameplate of your power tool. 

Using other batteries can lead to injuries and pose a fire 
hazard.

Set the rotational direction switch 

6

 to the centre position to 

protect the power tool against accidental starting.

Slide the charged battery 

9

 from behind into the foot of the 

power tool. Press the battery fully into the foot until the bat-
tery is securely locked.

Reversing the rotational direction (see figure B)

The rotational direction switch 

6

 is used to reverse the rota-

tional direction of the machine. However, this is not possible 
with the On/Off switch 

5

 actuated.

Right rotation:

 To drill and to drive in screws, press the rota-

tional direction switch 

6

 forward through to the stop.

Left rotation:

 To loosen or unscrew screws, press the rota-

tional direction switch 

6

 backward through to the stop.

Setting the torque

The torque presetting ring 

2

 can be used to pre-select the re-

quired torque in 20 stages. When the correct setting is used, 
the bit will be stopped as soon as the screw is driven flush into 
the material or as soon as the set torque has been reached. In 
position “

” the overload clutch is deactivated, e. g. for 

drilling or driving in very large screws.
When unscrewing screws, perhaps select a higher setting or 
set the tool to the “

” symbol.

Setting the operating mode (PSB 18 LI-2 Ergonomic) 
(see figure C)

The operating mode preselection ring 

3

 can be used to 

choose between screwdriving, drilling and impact drilling.

In the “Impact drilling” position, the safety clutch is deactivat-
ed and the maximum power is always effective.

Gear selection, mechanical



The gear selector 4 can be actuated at standstill or 
when the machine is running. However, this should not 
be done while operating at full load or maximum speed.

Two speed ranges can be preselected with the gear selector 

4

.

Gear I:

Low speed range; for screwdriving or working with large drill-
ing diameter.

Gear II:

High speed range; for working with small drilling diameter.

If the gear selector 

4

 cannot be pushed through to the stop, 

lightly turn the drill chuck with drill bit.

Switching On and Off

To 

start

 the machine, press the On/Off switch 

5

 and keep it 

pressed.

To 

switch off

 the machine, release the On/Off switch 

5

.

To save energy, only switch the power tool on when using it.

Setting the Speed/Impact Rate

The speed/impact rate of the switched on power tool can be 
variably adjusted, depending on how far the On/Off switch 

5

is pressed.

Light pressure on the On/Off switch 

5

 results in low speed/im-

pact rate. Further pressure on the switch increases the 
speed/impact rate.

Rapid Shut-off

The rapid shut-off feature enables better control of the power 
tool. The power tool shuts off in case of sudden and unexpect-
ed rotation of the power tool around the drilling axis.

The rapid shut-off feature is indicated by a flashing LED on the 
power tool.



Rapid shut-off can trigger only when the power tool is 
running at maximum operating speed and can rotate 
freely around the drill bit axis. 

Choose a suitable work 

position for this. Otherwise, rapid shut-off will not be en-
sured.

To 

restart the machine

, release the On/Off switch and then 

actuate again.

OBJ_BUCH-2481-002.book  Page 16  Thursday, July 23, 2015  10:26 AM