Maintenance and Cleaning

Keep the rack (26) and the guide surfaces of the drill column (20) clean at all times.

Clean the drill spindle (7) once the work is complete. Regularly spray the drill spindle and the core bit (8) with corrosion inhibitor.

In order to avoid safety hazards, if the power supply cord needs to be replaced, this must be done by Bosch or by an after-sales service centre that is authorised to repair Bosch power tools.

Readjusting the sliding guides (see figure D)

The sliding guides (34) can wear down over time, resulting in play between the sliding guides and the drill column. To eliminate this play, you will need to readjust the sliding guides.

Loosen all ten hex nuts (35) using an open-ended spanner (width across flats 13 mm). Then tighten the threaded pins (36) evenly until the play is minimised. Retighten all ten hex nuts.

The sliding guides do not need to be replaced until the sliding layer (red) is worn down, i.e. the red colour has disappeared and the backing material is revealed. We recommend having the replacement done by an authorised after-sales service centre for Bosch power tools.