Practical Advice
- Exercise caution when cutting slots in structural walls; see the "Information on structural design" section.
- Do not load the power tool so heavily that it comes to a stop.
- If the power tool has been subjected to a heavy load, continue to run it at no-load for several minutes to cool down the accessory.
- Work with cutting depths greater than 20 mm in hard materials, e.g. concrete, over several work operations, so as not to overload the motor.
- Clamp the workpiece if it is not secure under its own weight.
- Diamond cutting discs become very hot while working; do not touch them until they have cooled.
Protect the cutting disc against impact, shock and grease. Do not subject the cutting disc to lateral pressure.
Do not attempt to reduce the speed of a diamond cutting disc coming to a stop by applying pressure from the side.
For cutting especially hard material, e.g., concrete with high pebble content, the diamond cutting disc can overheat and become damaged as a result. This is clearly indicated by circular sparking, rotating with the diamond cutting disc.
If this happens, stop cutting and allow the diamond cutting disc to cool down by running the power tool for a short time at maximum speed with no load.
- The cutting discs sharpen themselves. A noticeably decreasing work rate and sparking all around the rim of the disc are indications of a cutting disc that has become blunt. In this case, sharpen the cutting disc by making short cuts in abrasive material (e.g. sandstone). Sporadic sparking is normal when working on stone and is therefore not a problem.
Hold the power tool by the auxiliary handle (3) and the handle (4).
When cutting metal, make sure that the valve (16) is closed.
Always use water cooling when cutting into concrete (see figure H).
- Attach the adapter (18), together with the water hose, firmly to the hose connector (17).
- Set the water flow using the valve (16) when the power tool is switched off.
Note: Maximum permissible water pressure: 6.2 bar
- Check the components of the water connection (17) before you use the power tool. Never use damaged parts.
- Prevent water from penetrating into the power tool and keep it away from persons in the work environment.
- Open the water supply and the valve (16) on the power tool.
- Ensure that the protective guard (5) is in the correct position see Aligning the Protective Guard (see figure F).
- Switch the power tool on see Switching On and Off (see figure G).
- Slowly and carefully plunge the cutting disc into the workpiece.
- Switch the power tool off once you have finished the cut.
- Close the valve (16) and the water supply.
Error | Cause | Solution |
|---|---|---|
Power tool cannot be switched on | Battery is not inserted or is discharged | Replace or charge battery |
Power tool and battery are outside the permissible operating temperature | Establish the permissible operating temperature see Technical Data | |
Power tool working, but with interruptions | Battery is almost empty | Replace or charge battery |
Internal error | Send the power tool to an authorised after-sales service centre for Bosch power tools | |
Power tool only working for a short time | Battery is almost empty | Replace or charge battery |
Strong vibrations | Cutting disc is worn or is out of balance | Replace the cutting disc |
Cutting disc is damaged | ||
Cutting disc is not fitted correctly | Correctly fit the cutting disc see Mounting/Changing the Diamond Cutting Disc (see figure A), see Mounting/Changing the Cutting Disc | |
Internal error | Send the power tool to an authorised after-sales service centre for Bosch power tools | |
Cutting disc jams, rough cuts or poor cutting performance | Cutting disc is damaged | Replace the cutting disc |
Incorrect cutting process | Correct the cutting process see Cutting Process (see figure J) | |
No water during cutting | Water supply is interrupted | Open the water supply |
Valve for the water supply is closed | Open the valve for the water supply | |
Adapter for water connection is not fitted correctly |