Tools / Power Tools
Bosch GBH 18V-28 C / 18V-28 CF Cordless Rotary Hammer User Manual
Quick guide for the Bosch GBH 18V-28 C and 18V-28 CF cordless rotary hammers, covering setup, tool changing, operation modes, and safety instructions.
Table of contents
Quick guide from the manual
This manual provides essential instructions for the Bosch GBH 18V-28 C and GBH 18V-28 CF cordless rotary hammers. It covers safe operation, tool setup, and maintenance. Always ensure the battery is removed before performing any maintenance or changing tools to prevent accidental startup.
Device Description
The GBH 18V-28 C and CF are designed for hammer drilling in concrete, brick, and stone, as well as light chiseling. They are also suitable for drilling without impact in wood, metal, ceramic, and plastic. Models with electronic control and right/left rotation can also be used for screwdriving.
Operation
The operating mode is selected using the impact/mode selector switch. Available modes include hammer drilling, drilling without impact, and chiseling. The Vario-Lock position allows for adjusting the chisel position to the optimal angle.
Tool Changing
The SDS-plus tool holder allows for easy tool changes without additional tools. For tools without SDS-plus, a suitable drill chuck (keyed or keyless) must be used. Ensure the dust protection cap is not damaged during operation; if damaged, it should be replaced immediately.
Safety and Maintenance
Always keep the tool and ventilation slots clean for safe operation. Use appropriate detectors to locate hidden supply lines before drilling. If the tool jams, the overload clutch will interrupt the drive to the drill spindle; hold the tool firmly with both hands to withstand the resulting forces.
Connectivity
With the Bluetooth Low Energy Module GCY 42 inserted, data and settings can be transferred between the power tool and a mobile device via Bluetooth wireless technology.
Manufacturer information
Bosch
Practical help
Common problems
Tool jams or hooks during operation
The overload clutch interrupts the drive. Switch off the tool immediately, release the jammed tool, and ensure a stable footing before restarting.
Rapid shut-off (Kickback Control) triggered
If the tool rotates unexpectedly, it will shut off. Release the on/off switch and press it again to restart.
Dust protection cap damaged
Replace the dust protection cap immediately to prevent drilling dust from entering the tool holder.
Before use
- Ensure the battery is fully charged.
- Check that the auxiliary handle is securely tightened.
- Verify the correct operating mode is selected.
- Ensure the dust protection cap is intact.
- Check that the tool is securely locked in the holder.
Specs in practice
- Impact energy
- 3.3 J, indicating the force of each hammer blow.
- Max. drilling diameter (concrete)
- 28 mm, the maximum capacity for hammer drilling in concrete.
Model compatibility
- Compatible with GBA 18V and ProCORE18V batteries.
- Compatible with Bosch Toolbox app for connectivity features.
- Dust extraction attachment GDE 18V-16 is required for concrete and stone dust.
Manual page author
David Miller
Documentation analyst
Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.