Inserting/changing the core bit
- Before carrying out any work on the drill stand or drill, during work breaks and when not using the drill stand, secure the drill stand against unintentional movement by tightening the parking brake.
Inserting the core bit
Only use dry core bits for dry drilling and only use wet core bits for wet drilling.
- Always examine the core bits before inserting them. Only use core bits that are free of defects. Using damaged or deformed core bits may result in dangerous situations.
Clean the core bits before inserting them. Lightly grease the thread of the core bit or spray it with corrosion inhibitor.
Screw a 1 1/4" UNC core bit (8) onto the drill spindle (7).
- Check that the core bit is fitted securely. Core bits that are attached incorrectly or are not securely fixed in place may come loose during operation, thereby putting you at risk.
Removing the core bit
- Wear protective gloves when changing the core bit. The core bit may become hot when the power tool is operated for extended periods of time.
Detach the core bit (8) using an open-ended spanner (width across flats 41 mm). When doing so, hold a second open-ended spanner (width across flats 32 mm) on the two flats of the drill spindle (7) to provide counterforce.