Bosch GSB 162-2 RE Professional Operations Instructions download pdf (Page 20)

20 | English

2 609 932 747 | (13.8.10) Bosch Power Tools

Operation

Starting Operation

f Observe correct mains voltage! The voltage

of the power source must agree with the

voltage specified on the nameplate of the

machine. Power tools marked with 230 V

can also be operated with 220 V.

Reversing the Rotational Direction

(see figure F–G)

The rotational direction switch 3 is used to re-

verse the rotational direction of the machine.

However, this is not possible with the On/Off

switch 5 actuated.

Right rotation: For drilling and screwing in

screws, push the rotational direction switch 3

toward the left.

Left rotation: For loosening and unscrewing

screws and nuts, push the rotational direction

switch 3 toward the right.

Setting the Operating Mode

Drilling and Screwdriving

Set the selector switch 2 to the “Drill-

ing” symbol.

Impact Drilling

Set the selector switch 2 to the “Im-

pact drilling” symbol.

The selector switch 2 engages noticeably and

can also be actuated with the machine running.

Gear Selection, Mechanical

f The gear selector 8 can be actuated at

standstill or when the machine is running.

However, this should not be done while op-

erating at full load or maximum speed.

Two speed ranges can be preselected with the

gear selector 8.

Gear I:

Low speed range; for working with

large drilling diameter or for driv-

ing in screws.

Gear II:

High speed range; for working with

small drilling diameter.

Switching On and Off

To start the machine, press the On/Off switch 5

and keep it pressed.

To lock the pressed On/Off switch 5, press the

lock-on button 4.

To switch off the machine, release the On/Off

switch 5 or when it is locked with the lock-on

button 4, briefly press the On/Off switch 5 and

then release it.

Safety Clutch

To limit high reaction torque,

the power tool is equipped

with a safety clutch (Anti-Ro-

tation).

f If the tool insert becomes caught or

jammed, the drive to the drill spindle is in-

terrupted. Because of the forces that occur,

always hold the power tool firmly with both

hands and provide for a secure stance.

f If the power tool jams, switch the machine

off and loosen the tool insert. When switch-

ing the machine on with the drilling tool

jammed, high reaction torques can occur.

Adjusting the Speed/Impact Frequency

The speed/impact rate of the switched on pow-

er 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/impact rate. Further pressure on the

switch increases the speed/impact rate.

Preselecting the Speed/Impact Frequency

With the thumbwheel for speed preselection 6,

the required speed/impact frequency can be

preselected even during operation.

The required speed/impact frequency depends

on the material and the working conditions, and

can be determined through practical testing.

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