Starting Operation

The rotational direction switch (2) is used to change the rotational direction of the power tool. However, this is not possible while the on/off switch (8) is being pressed.

Right rotation: To drive in screws and tighten nuts, press the rotational direction switch (2) through to the left stop.

Left Rotation: To loosen and unscrew screws and nuts, press the rotational direction switch (2) through to the right stop.

You can adjust the speed/impact rate of the power tool when it is on by pressing in the on/off switch (8) to varying extents.

Applying light pressure to the on/off switch (8) results in a low rotational speed/impact rate. Applying increasing pressure to the switch increases the speed/impact rate.

To start the power tool, press and hold the on/off switch (8).

The worklight (15) lights up when the on/off switch (8) is lightly or fully pressed, allowing the work area to be illuminated in poor lighting conditions.

To switch off the power tool, release the on/off switch (8).

GDS 18V-1000 C / GDS 18V-1050 HC:

The user interface (7) is used to preselect the speed and working mode and to indicate the status of the power tool.

Status indications

Status indicator for power tool (11)

Meaning/cause

Solution

Green

Status OK

–

Yellow

Critical temperature has been reached or rechargeable battery is almost empty

Run the power tool at no load and allow it to cool down, or replace or charge the battery soon

Illuminated red

Power tool has overheated or rechargeable battery is empty

Allow the power tool to cool down, or replace or charge the battery

Flashing blue

Power tool is connected to a mobile device or settings are being transferred

–

With the speed preselection button (16), you can preselect the required speed in three stages. Press button (16) as often as needed until the required setting is indicated in the speed indicator (17). The selected setting will be saved.

GDS 18V-1000 C / GDS 18V-1050 HC:

You can also preselect the speed using the Bosch Toolbox app.

The required speed depends on the material and the working conditions; it can be ascertained through practical tests.

The information in the table below describes the recommended values.

Basic speed setting at level

1

2

3

[min-1]

[min-1]

[min-1]

Number of speed settings

3

0–1 100

0–2 300

0–3 400

You can use the button for speed preselection (16) to preselect the required speed, even during operation.

GDS 18V-1000 / GDS 18V-1050 H:

To switch the worklight (15) on or off, press the worklight button (13).

  • Do not look directly into the worklight; it can blind you.

GDS 18V-1000 C / GDS 18V-1050 HC:

The power tool has two preset working modes A and B (12). You can also programme working modes for different applications and adjust existing modes via the Bosch Toolbox under A and B (12).

To switch between the working modes A and B (12), press button (14).

To leave the working modes, press the button for speed preselection (16).