Starting Operation; Working Advice - Bosch GKF 12V-8 Professional Originalbetriebsanleitung

16 | English
Certain dust, such as oak or beech dust, is considered carci-
nogenic, especially in connection with wood-treatment ad-
ditives (chromate, 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 ma-
terials to be worked.
Avoid dust accumulation at the workplace. Dust can
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easily ignite.
Operation
Adjusting the routing depth (see figures D–E)
The routing depth must only be set while the power
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tool is switched off.
Place the power tool with a fitted router bit onto the work-
piece you want to machine.
Turn the locking wheel (14) anticlockwise approximately
half a revolution to unlock the depth-of-cut adjuster.
Push and hold the routing depth coarse adjustment but-
ton (8). Move the drive unit up or down and adjust the rout-
ing depth to approximately the required position. Release
the (8) button.
Use the thumbwheel (10) to set the exact routing depth re-
quired. Each revolution of the thumbwheel alters the routing
depth by 1 mm.
Turn the locking wheel (14) clockwise approximately half a
revolution to lock the depth-of-cut adjuster.
Check the routing depth you have set by carrying out a prac-
tical test and correct it if required.
If you want to keep the tool at the routing depth you have
set, you can screw the fixing screw (11) into the routing
depth fine adjustment thumbwheel (10).

Starting Operation

Inserting the Battery
Note: The use of batteries unsuitable for your power tool can
lead to malfunctions or damage to the power tool.
Insert the charged battery (1) into the battery holder until it
is flush and you feel it engage.
Switching On and Off
To switch on the power tool, slide the on/off switch (5)
downwards so that I appears on the switch.
To switch off the power tool, slide the on/off switch (5) up-
wards so that 0 appears on the switch.

Working Advice

Protect router bits against shock and impact.
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Routing direction and routing process (see figures F–G)
Routing must always be carried out with the work-
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piece being moved against the direction in which the
router bit (17) is turning (up cut). If the workpiece is
moved in the same direction as the router bit is turning
1 609 92A 57U | (04.03.2020)
(down cut), the power tool may be pulled out of your
hands.
Note: Be aware that the router bit (17) always protrudes
slightly from the base plate (12). Do not damage the tem-
plate or the workpiece.
Set the routing depth you want.
Switch on the power tool and guide it to the point you want
to machine.
Carry out the routing process with a uniform feed.
Switch off the power tool after routing.
Do not put the power tool down before the router bit
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has come to a complete stop. Application tools that are
still running can cause injuries.
Edge or profile routing (see figure H)
For edge and profile routing without a parallel guide, the
router bit must be fitted with a pilot pin or a ball bearing.
While it is switched on, guide the power tool towards the
workpiece from the side until the pilot pin or the ball bearing
of the router bit is touching the side of the workpiece edge
that you want to machine.
Guide the power tool along the workpiece edge. Pay atten-
tion that the router is positioned perpendicularly. Too much
pressure can damage the edge of the workpiece.
The following maximum workpiece dimensions apply for
edge and profile milling operations:
Material
Hardwood
Softwood
Plastic
MDF sheets
Plywood sheets
Temperature monitoring/overload protection indicator
The red LED indicator (3) helps you to protect the battery
against overheating and the motor against overload.
If the LED indicator (3) is lit up permanently in red, the
temperature of the battery is too high and the power tool
switches off automatically.
– Switch the power tool off.
– Allow the battery to cool down before you carry on work-
ing.
If the LED indicator (3) is flashing red, then the power tool
is blocked and will switch off automatically.
Pull the power tool out of the workpiece.
The power tool will continue to work as soon as the blockage
is rectified.
Recommendations for Optimal Handling of the Battery
Protect the battery against moisture and water.
Only store the battery within a temperature range of −20 to
50 °C. Do not leave the battery in your car in the summer, for
example.
Occasionally clean the ventilation slots on the battery using a
soft brush that is clean and dry.
Radius Chamfer
mm mm
10 6
12 10
12 10
12 10
10 6
Bosch Power Tools