Bosch GDX 18V-200 C (06019G4204) [17/239] Switching on off

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Switching on/off

To start the power tool, press and hold the on/off switch

(13).

To switch off the power tool, release the on/off switch (13).

Preselecting the speed/impact rate

With the button (8), you can preselect the required speed/

impact rate in three stages. Press the button (8) repeatedly

until the desired setting appears in the speed indicator (11).

pressing in the on/off switch (13) to varying extents.

A light pressure on the on/off switch (13) results in a low ro-

tational speed. Increased pressure on the switch causes an

increase in speed.

Switching the "PowerLight" lamp on/off

Press the button (10) to activate the lamp (9). To switch off

the lamp (9), press the button (10) again.

Practical advice

u Only apply the power tool to the screw/nut when the

tool is switched off. Rotating tool inserts can slip off.

The impact duration is to be determined for each required

tightening torque. The actually achieved tightening torque is

always to be checked with a torque wrench.

Screw applications with hard, spring-loaded or soft seats

When the achieved torques in an impact series are measured

during a test and transferred into a diagram, the result is the

curve of a torque characteristic. The height of the curve cor-

responds with the maximum reachable torque, and the

steepness indicates the duration in which this is achieved.

A torque gradient depends on the following factors:

– A hard seat is a metal-to-metal screw application which

uses washers. After a relatively short impact duration, the

maximum torque is reached (steep characteristic curve).

Unnecessary long impact duration only causes damage to

the machine.

– A spring-loaded seat is also a metal-to-metal screw ap-

plication but uses spring washers, disc springs, studs or

screws/nuts with conical seats. It is also called a spring-

loaded seat when extensions are used.

– A soft seat is a screw application of e.g. metal on wood or

Figures given in Nm; calculated from the tensional cross-section; utilization of the yield point: 90% (with friction coefficient

µ

total

=0.12). As a control measure, always check the tightening torque with a torque wrench.

Property Classes

according to

DIN267

Standard Screws/Bolts High-strength Bolts

3.6 4.6 5.6 4.8 6.6 5.8 6.8 6.9 8.8 10.9 12.9

M6 2.71 3.61 4.52 4.8 5.42 6.02 7.22 8.13 9.7 13.6 16.2

M8 6.57 8.7 11 11.6 13.1 14.6 17.5 19.7 23 33 39

M10 13 17.5 22 23 26 29 35 39 47 65 78

the thread to approx. 2/3 of the screw length.

Note: Ensure that no metal particles enter the power tool.

After working at a low speed for an extended period, you

should operate the power tool at the maximum speed for ap-

proximately three minutes without load to cool it down.

Belt clip

for example. You then have both hands free and the power

tool is always at hand.

Recommendations for optimal handling of the battery

Protect the battery against moisture and water.