Bosch GBH 7-46 DE Service Manual download pdf (Page 18)

18 | English

1 609 929 V45 | (6.7.10) Bosch Power Tools

Inserting (see figure A)

– Clean and lightly grease the shank end of the

tool.

– Insert the tool in a twisting manner into the

tool holder until it latches itself.

– Check the latching by pulling the tool.

Removing (see figure B)

– Push back the locking sleeve 2 and remove

the tool.

Dust/Chip Extraction

Dusts 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 dusts can cause allergic reac-

tions and/or lead to respiratory infections of the

user or bystanders.

Certain dusts, such as oak or beech dust, are

considered as carcinogenic, especially in con-

nection with wood-treatment additives (chro-

mate, wood preservative). 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.

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.

Setting the Operating Mode

The operating mode of the power tool is select-

ed with the mode selector switch 3.

Note: Change the operating mode only when the

machine is switched off! Otherwise, the ma-

chine can be damaged.

– Turn the mode selector switch 3 to the re-

quested position.

In the “chiselling” position, the impact rate

preselected with the thumbwheel 5 is automat-

ically increased when switching on; this causes

the power tool to operate with increased capac-

ity when chiselling.

Switching On/Off in Drilling Mode

–To start the machine, press the On/Off

switch 4 and keep it pressed.

– To switch off the machine, release the

On/Off switch 4.

Switching On/Off in Chiselling Mode

–To start the machine, press the On/Off

switch 4 at the top (I) until it locks.

–To switch off the machine, press the On/Off

switch 4 at the bottom (0) and release it.

For low temperatures, the power tool reaches

the full hammer/impact capacity only after a cer-

tain time.

Position for hammer drilling

When the drilling tool does not

immediately rotate upon switching

on, allow the machine to run slowly

until the drilling tool rotates.

Vario-Lock position for adjustment

of the chiselling position

Position for chiselling

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