Start-up

To start the power tool, first press the lock-off switch (1), then press and hold the on/off switch (2).

To switch off the power tool, release the on/off switch (2).

Note: For safety reasons, the on/off switch (2) cannot be locked; it must remain pressed during the entire operation.

The lithium-ion battery is protected against deep discharge by the Electronic Cell Protection (ECP). When the battery is discharged, the power tool is switched off by means of a protective circuit: The application tool no longer rotates.

GKS 18V-68 GC

If the power tool is operated in the energy-saving ECO mode, the battery life may be up to 30 % longer.

If the ECO mode is active, the symbol E is shown on the speed setting/mode indicator (37).

GKS 18V-68 GC

The user interface (3) is used to preselect the speed and to indicate the status of the power tool.

GKS 18V-68 GC

Six speed settings and the ECO mode are preset in the basic settings. Using a special application (Bosch Toolbox app), two to six speed settings can be programmed.

The information in the table below describes the preset speeds (default settings) for each programmed number of levels.

Basic speed setting at level

1

2

3

4

5

6

[min-1]

[min-1]

[min-1]

[min-1]

[min-1]

[min-1]

Number of speed settings

ECO

3630A)

–

–

–

–

–

2

2500

5000

–

–

–

–

3

2500

3800

5000

–

–

–

4

2500

3300

4200

5000

–

–

5

2500

3100

3800

4400

5000

–

6

2500

3000

3500

4000

4500

5000

A)

±25 %

You can use the button for speed preselection (36) to preselect the required speed, even during operation.

GKS 18V-68 GC

Battery charge indicator (user interface) (34)

Meaning/cause

Solution

Green (2 to 5 bars)

Battery charged

–

Yellow (1 bar)

Battery almost empty

Replace or charge battery soon

Red (1 bar)

Battery empty

Replace or charge battery

Temperature indicator (40)

Meaning/cause

Solution

Yellow

Critical temperature has been reached (motor, electronics, battery)

Run the power tool at no load and allow it to cool down

Red

Power tool is overheated and will switch off

Leave the power tool to cool down

Power tool status indicator (39)

Meaning/cause

Solution

Green

Status OK

–

Yellow

Critical temperature has been reached or battery is almost empty

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

Red

Power tool is overheated or battery is empty

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

Flashing red

Restart protection is triggered

Turn the power tool off and on again; if necessary, remove the battery and reinsert it.

GKS 18V-68 GC

In conjunction with the Bluetooth® Low Energy Module GCY 42, the following connectivity functions are available for the power tool:

  • Registration and personalisation
  • Status check, output of warning messages
  • General information and settings
  • Management
  • Setting the speed levels

Further information can be found under the Power tool status display (39) on a mobile device if it is connected via Bluetooth® wireless technology.

Read the corresponding operating instructions for information about the Bluetooth® Low Energy Module GCY 42.

GKS 18V-68 C

In conjunction with the Bluetooth® Low Energy Module GCY 42, the following connectivity functions are available for the power tool:

  • Registration and personalisation
  • Status check, output of warning messages
  • General information
  • Management

Read the corresponding operating instructions for information about the Bluetooth® Low Energy Module GCY 42.