Start-up

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

Pressing the lock-off switch (2) also unlocks the plunge function and allows the power tool to be pushed down. This causes the application tool to plunge into the workpiece. Raising the power tool causes it to spring back into the starting position and the plunge function locks again.

To switch off the power tool, release the on/off switch (1).

Note: For safety reasons, the on/off switch (1) cannot be locked; it must remain pressed during the entire operation.

The Constant Electronic keeps the speed at no load and under load virtually consistent, guaranteeing uniform performance.

If the power tool is operated in the energy-saving ECO mode, the battery life may be up to 20% longer.

If the ECO mode is active, the symbol E is shown on the speed setting/mode indicator (40). In addition, the ECO mode indicator (38) lights up.

The user interface (20) is used to preselect the speed and to indicate the status of the power tool.

Six speed settings and the ECO mode are preset in the basic settings. Using a special application (Bosch Toolbox app), one 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

4260A)

–

–

–

–

–

2

2800

5500

–

–

–

–

3

2800

4100

5500

–

–

–

4

2800

3700

4600

5500

–

–

5

2800

3500

4100

4800

5500

–

6

2800

3300

3900

4400

5000

5500

A)

±25 %

The required speed depends on the saw blade used and the material being worked on (see the saw blade overview at the end of these operating instructions). This will prevent the saw teeth overheating when sawing.

You can use the button for speed preselection (39) to preselect the required speed, even during operation.

The figures in the table below are recommended values for the basic settings with 6 preset speed settings and the ECO mode.

Material

Application

Application tool

Speed preselection level

[min–1]

Hardwood, softwood

Sawing

Expert for Wood T42 (fine)
Expert for Wood T24 (coarse)

6

5500

Chipboard and fibreboard, including coarse chipboard

Sawing

Expert for Wood T42 (fine)
Expert for Wood T24 (coarse)

3–6

3900–5000

Chipboard and fibreboard, including coarse chipboard

Sawing

Expert for Wood T42 (fine)
Expert for Wood T24 (coarse)

ECO

4260A)

Laminated wood and machined surfaces (chipboard, MDF)

Sawing

Expert for Laminated Panel T42

6

5500

Plastics

Sawing

Expert for High-Pressure Laminate T42
Expert for Aluminium T48

2–5

3350–4950

Acrylic glass

Sawing

Expert for High-Pressure Laminate T42
Expert for Aluminium T48

4–5

4400–4950

Plaster- and cement-bonded fibreboards

Sawing

Expert for Fibre Cement T4

1–4

2800–4400

A)

±25 %

Battery charge indicator (user interface) (37)

Meaning/cause

Solution

Green

Battery charged

–

Yellow

Battery almost empty

Replace or charge battery soon

Red

Battery empty

Replace or charge battery

Temperature indicator (43)

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

Smartphone symbol (41)

Meaning/cause

–

Further information can be found on a mobile device if it is connected via Bluetooth® wireless technology.

Power tool status indicator (42)

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.

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

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