Bosch GBG 8 - Инструкция по эксплуатации - Страница 14

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1 609 92A 0XY | (30.9.14)

Bosch Power Tools

Technical Data

Assembly



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

– Use suitable screws to fix the power tool to the workbench / 

worktop at the 4 holes 

7

 provided.

Mounting the Spark Guard / Workpiece Support 
(see figures A – D)



Use the machine only with the spark guard 10. 

Sparks 

being expelled can injure your eyes or set objects in the vi-
cinity on fire.

– Mount the holder for the spark guard 

9

 with the two 

screws.

– Screw the spark guard 

10

 to the holder of the spark guard 

9

.

– Mount the workpiece support 

11

 as shown in the figure.



Do not interchange the right and left workpiece sup-
port 11. 

Otherwise, the clearance between workpiece 

support 

11

 and grinding wheel will be too large. When the 

clearance is larger, you are not sufficiently protected 
against sparking. The workpiece can be drawn in by the ro-
tational motion of the grinding wheel and lead to injuries.



Regularly check the clearance between the workpiece 
support 11 as well as the holder of the spark guard 9 to 
the grinding wheel, and readjust as required. The clear-
ance to the grinding wheel may not exceed 2 mm. 

When 

the clearance is larger, you are not sufficiently protected 

against sparking. The workpiece can be drawn in by the ro-
tational motion of the grinding wheel and lead to injuries.

Replace the grinding wheel when the holder of the spark 
guard 

9

 can no longer be adjusted to the required clearance of 

2 mm (max.) to the grinding wheel.

Changing a Grinding Wheel



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



The rated speed of the accessory must be at least equal 
to the maximum speed marked on the power tool. 

Ac-

cessories running faster than their rated speed can break 
and fly apart.

Replace the grinding wheel as soon as its residual material 
reaches a thickness of 10 mm.

– Loosen the 3 screws of cover 

1

 and remove cover 

1

. Hold 

the  grinding wheel 

wearing protective gloves

 and un-

screw the clamping nut 

2

 from the grinder spindle 

5

.

Note: 

The grinder spindle 

5

 on the left side of the machine has 

a left-hand thread.

– Remove the clamping flange 

3

 and the grinding wheel from 

the grinder spindle 

5

.

– The new grinding wheel is mounted in reverse order. Place 

the cover 

1

 firmly onto the housing and tighten with the 3 

screws.

Dress used and out-of-centre grinding wheels with a whet-
stone (accessory) before continuing to use them.

Double bench grinder

GBG 6

GBG 8

Article number

3 601 B7A 0..

3 601 B7A 1..

Rated power input P1

W

350

600

Output power P2

– 50 Hz
– 60 Hz

W
W

240
250

420

–

Operating Mode *

S2 (60 min.)

S2 (60 min.)

No-load speed

– 50 Hz
– 60 Hz

min

-1

min

-1

2 900
3 500

2 900

–

Thread of grinder spindle

M 12

M 12

Grinding wheels

– Diameter
– Width
– Mounting  bore
– Grain  size

mm
mm
mm

150

20
20

24 / 60

200

25
32

24 / 60

Mounting flange

– Mounting  bore
– min.  recess

mm
mm

12.7

1.5

15

1.5

Weight according to EPTA-Procedure 01/2003

kg

10.0

16.5

Protection class

/

I

/

I

The values given are valid for a nominal voltage [U] of 230 V. For different voltages and models for specific countries, these values can vary.

* The operating mode S2 (60 min.) designates short-time operation with a maximum operating duration of 60 minutes. After this period, switch off the 
machine and allow it to cool down.

OBJ_BUCH-1501-004.book  Page 14  Tuesday, September 30, 2014  11:17 AM