Bosch GDB 180 WE Professional - Инструкция по эксплуатации - Страница 14

14

 | English 

1 609 92A 1A3 | (1.6.15)

Bosch Power Tools

Inserting a Core Bit



Examine the core bit before inserting it. Use only core 

bits that are in perfect condition. 

Damaged or deformed 

core bits can lead to dangerous situations.

Clean the core bit before inserting it. Apply a light coat of 
grease to the core bit thread or spray on a corrosion protec-
tion agent.

Screw a 1 1/4"-UNC core bit 

14

 onto the drill spindle 

15

.



Check the proper seating of the core bit. 

Incorrectly or 

unsecurely fastened core bits can become loose during op-
eration and may pose a danger.

Removing a Core Bit



Wear protective gloves when replacing the core bit. 

The core bit can become hot after prolonged operation of 
the power tool.

Loosen the core bit 

14

 using an open-end spanner (size 

41 mm). When doing so, hold a second open-end spanner 
(size 32 mm) on the two flats of the drill spindle 

15

 to provide 

counterforce.

Connecting the Water Cooling/Dust Extraction

When wet- or dry-drilling core bits are not sufficiently cooled 
during drilling, the diamond segments can become damaged 
or the core bit can become jammed in the bore hole. There-
fore, provide for sufficient water cooling during wet drilling, 
and for proper operating dust extraction during dry drilling.

When boring out a given bore, the given bore must be careful-
ly plugged in order to enable sufficient cooling of the core bit.



Connected hoses, shut-off valves or accessories must 

not obstruct or hinder the drilling process. 

Connecting the Water Cooling

Place the tap connection adapter 

7

 on the claw coupling 

11

and tighten it all the way in clockwise direction.

Shut the water cock 

9

. Connect water supply to the water-out-

let connector 

8

. The water supply is possible either via a mo-

bile water-pressure container (accessory) or via stationary 
water connection.

If the power tool is inserted into a drill stand, you can collect 
the water escaping from the bore hole using a water collection 
ring and a wet/dry vacuum cleaner (both accessories).



When wet drilling overhead, the escaping water must 

be collected. 

To do this, insert the power tool into a drill 

stand and mount a water collecting ring.

Read and observe the operating instructions of the water col-
lection ring to mount it.

Connecting the Dust 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 reactions 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 connection with wood-treat-
ment additives (chromate, wood preservative). Materials 
containing asbestos may only be worked by specialists.

– As  far  as  possible,  use  a  dust extraction system suitable 

for the material.

– 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.

Place the extraction adapter 

6

 on the claw coupling 

11

 and 

tighten it all the way in clockwise direction.

Attach the vacuum hose 

4

 of a wet/dry vacuum cleaner 

geared towards and recommended for this system (see 
“Accessories/Spare Parts”, page 15) to the vacuum 
connection 

5

.

Operation

Starting Operation



Observe the mains voltage! 

The voltage of the power 

source must correspond with the data on the type plate of 
the machine.



Before beginning work, consult the structural engi-

neer, architect or construction supervisor in charge. 

Only cut through reinforcements with the permission 

of a structural engineer.



When core drilling through walls or floors, ensure that 

you check the respective rooms/enclosures for ob-

structions. Barrier off the construction site and secure 

the drilled out core against falling down with the use of 

casing or similar.

Function test of the portable residual current device 

(PRCD)

Each time before beginning work, check that the portable re-
sidual current device (PRCD) 

3

 is functioning properly:

– Press the 

“TEST”

 button on the portable residual current 

device (PRCD). The red control indicator extinguishes.

– Press the 

“RESET”

 button. It must now be possible to 

switch the power tool on.

If the red control indicator does not extinguish when you 
press the 

“TEST”

 button or if it extinguishes repeatedly when 

the power tool is switched on, then you must have the power 
tool checked by an authorised Bosch after-sales service 
agent.



If the portable residual current device (PRCD) is defec-

tive, the power tool must not be operated. 

Switching On

Press the 

“RESET”

 button on the portable residual current 

device (PRCD) 

3

.

Wet drilling: Set the water cock 

9

 to flow.

To 

switch on

 the power tool, press the On/Off switch 

1

 and 

keep it pressed.

To 

lock

 the pressed On/Off button, additionally press the 

lock-on button 

2

.

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

OBJ_BUCH-2199-002.book  Page 14  Monday, June 1, 2015  12:16 PM