Bosch GKF 12V-8 - Инструкция по эксплуатации - Страница 16

16

 | English 

1 609 92A 3WR | (10.8.17)

Bosch Power Tools

Dust/Chip Extraction



Dust 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 dust can cause 
allergic reactions and/or lead to respiratory infections of 
the user or bystanders.
Certain dust, such as oak or beech dust, is considered car-
cinogenic, especially in connection with wood-treatment 
additives (chromate, wood preservative). Materials con-
taining 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

Adjusting the Depth-of-cut (see figures D – E)



The adjustment of the depth-of-cut may only be carried 
out when the router is switched off.

Place the machine with the router bit mounted on the work-
piece to be machined.
Turn the locking wheel 

14

 anti-clockwise approximately half a 

revolution to unlock the depth-of-cut adjuster.
Push and hold the depth-of cut coarse adjustment button 

8

. 

Move the drive unit up or down and adjust the cutting depth to 
approximately the required position. Release the 

8

 button.

Use the thumbwheel 

10

 to set the exact cutting depth re-

quired. Each revolution of the thumbwheel alters the cutting 
depth by 1 mm.
Turn the locking wheel 

14

 clockwise approximately half a rev-

olution to lock the depth-of-cut adjuster.
Check the adjusted depth-of-cut with a trial cut and correct it, 
if necessary.
If you want to keep the tool at the cutting depth you have set, 
you can screw the fixing screw 

11

 into the depth-of-cut fine 

adjustment thumbwheel 

10

.

Starting Operation

Inserting the battery
Note: 

Use of batteries not suitable for the machine can lead to 

malfunctions of or cause damage to the power tool.
Insert the charged battery 

1

 into the battery port until it can 

be felt to engage and is seated flush.

Switching On and Off

To 

switch on

 the power tool, slide the On/Off switch 

5

 down 

so that 

“I”

 appears on the switch.

To 

switch off

 the power tool, slide the On/Off switch 

5

 up so 

that 

“0”

 appears on the switch.

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

Working Advice



Before any work on the machine itself (e. g. mainte-
nance, tool change, etc.), remove the battery from the 
power tool. 

There is danger of injury when unintentionally 

actuating the On/Off switch.



Protect router bits against shock and impact.

Direction of Feed and Routing Process  (see figure F – G)



The feed motion of the router bit 17 must always be 
carried out against the rotation direction of the router 
bit (up-cutting).  

When routing in the rotation direction of 

the router bit (down-cutting), the machine can break 
loose, eliminating control by the user.

Note: 

Take into consideration that the router bit 

17

 always 

extends out of the base plate 

12

. Do not damage the template 

or the workpiece.
Set the desired depth-of-cut.
Switch the machine on and guide it to the location subject to 
working.
Carry out the routing process applying uniform feed.
Switch the machine off after finishing the routing process.



Do not place the power tool down until after the router 
bit has come to a complete stop. 

Coasting application 

tools can cause injuries.

Shaping or Molding Applications (see figure H)

For edge milling and profile milling, the milling cutter must be 
fitted with a pilot pin or a ball bearing. We recommend using 
milling cutters with a ball bearing.
Guide the switched on power tool from the side toward the 
workpiece until the pilot or the ball bearing of the router bit 
faces against the workpiece edge to be machined.
Guide the machine alongside the workpiece edge. Ensure that 
the tool rests on the workpiece at the correct angle. Excessive 
pressure can damage the edge of the workpiece.
The following maximum workpiece dimensions apply for edge 
and profile milling operations:

Temperature Control/Overload Protection Indicator

The red LED indicator 

3

 helps you to protect the battery 

against overheating and the drive against overheating and 
overload.

If the LED indicator 

3

 is lit up 

permanently in red

, the tem-

perature of the battery or drive unit is too high. The power tool 
switches off automatically.
– Switch the power tool off.
– Allow the battery and power tool to cool down before you 

carry on working.

The LED indicator 

3

flashes red

, the power tool is blocked 

and switches off automatically.
– Switch the power tool off.
– Remove the power tool from the workpiece.
– Unlock the spindle lock if necessary.

As soon as the blockade has been removed and the motor 
spindle is able to turn freely again, you can switch the power 
tool back on.

Material

Radius

mm

Chamfer

mm

Hardwood

10

6

Softwood

12

10

Plastic

12

10

MDF sheets

12

10

Plywood sheets

10

6

OBJ_BUCH-3210-001.book  Page 16  Thursday, August 10, 2017  2:56 PM