Bosch GDB 2500 WE - Инструкция по эксплуатации - Страница 16

16

 | English 

1 609 929 W83 | (9.11.10)

Bosch Power Tools

Assembly

f

Before any work on the machine itself, pull 
the mains plug.

Clamping the Machine in the S 500 A 

Diamond-drill Stand

f

The safety and operating instructions for 
the drill stand being used are to be strictly 
observed!

For mounting the power tool into the drill stand, 
please read and observe the operating instruc-
tions of the drill stand.

Inserting/Replacing the Core Bit

f

Before any work on the machine itself, for 
longer work breaks, as well as when not us-
ing, secure the power tool against uninten-
tional motion by engaging the feed lock. 

For 

this, read and observe the operating instruc-
tions of the drill stand.

Inserting a Core Bit

f

Examine the core bit before inserting it. 
Use only core bits that are in perfect condi-
tion. 

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 protection agent.
Either screw a G 1/2" core bit into drill spindle 

9

 or a 1 1/4" UNC core bit onto drill spindle 

9

.

f

Check the proper seating of the core bit. 

In-

correctly or unsecurely fastened core bits 
can become loose during operation and may 
pose a danger.

Inserting a sliding ring 

8

 (accessory) between 

the drill spindle and the 1 1/4"-UNC core bit pro-
vide for easier loosening of the core bit after 
use.

Removing a Core Bit

f

Wear protective gloves when replacing the 
core bit. 

The core bit can become hot after 

prolonged operation of the power tool.

Loosen core bit 

7

 with an open-end spanner 

(1 1/4" UNC core bit: Spanner size, 41 mm; 
G 1/2" core bit: Spanner size, 22 mm). When do-
ing this, counter-hold the bore spindle 

9

 by the 

flats using a second open-end spanner (spanner 
size, 36 mm).

Connecting the Water Cooling

When wet-drilling core bits are not sufficiently 
cooled during drilling, the diamond segments 
can become damaged or the core bit can be-
come jammed in the bore hole. Therefore, pro-
vide for a sufficient water supply during wet 
drilling.
When boring out a given bore, the given bore 
must be carefully plugged in order to enable suf-
ficient cooling of the core bit.

f

Connected hoses, shut-off valves or acces-
sories must not obstruct or hinder the drill-
ing process. 

Shut the water cock 

11

. Connect water supply 

to the water-outlet connector 

3

. The water sup-

ply is possible either via a mobile water-pres-
sure container (accessory) or via stationary wa-
ter connection.
In order to collect the water coming out of the 
bore during wet-drilling, a water collection ring 
and a multi-purpose vacuum cleaner are re-
quired (both accessories).
For assembly of the water collection ring, read 
and observe its operating instructions.

OBJ_BUCH-114-002.book  Page 16  Tuesday, November 9, 2010  11:58 AM