Tools / Drills
User Manual for Bosch GBH 18V-36 C Professional Cordless Rotary Hammer
Quick guide for the Bosch GBH 18V-36 C Professional cordless rotary hammer. Includes setup, operation modes, safety instructions, maintenance, and troubleshooting.
Quick answers from the manual
Quick answer
- The Bosch GBH 18V-36 C is a cordless rotary hammer intended for hammer drilling in concrete, masonry, and stone, as well as for light and medium-duty chiseling work. p. 15
Key actions
- Insert the battery by sliding it into the power tool until it is securely locked. p. 18
- Select the operating mode using the combi switch. p. 18
- Change the tool by pushing the locking sleeve back to insert or remove SDS-max tools. p. 17
First start
- Fully charge the battery in the charger before using the power tool for the first time. p. 17
Problems and fixes
Battery charge indicator LEDs do not light up after pressing the button.
The battery is defective and must be replaced.
p. 17
Power tool switches off automatically.
The battery is discharged (ECP protection). Charge the battery.
p. 17
Rapid shut-off (Kickback Control) triggered.
Release the on/off switch and then press it again.
p. 19Error codes
| Code | Meaning | Action | Pages |
|---|---|---|---|
| Status indicator (20) flashes red | Rapid shut-off is triggered. | Turn the power tool off and on again. | p. 19 |
| Temperature indicator (22) red | Operating temperature of the battery or the power tool has been exceeded. | Leave the power tool to cool down or replace overheated batteries. | p. 19 |
Maintenance and reset
- Clean the tool holder after each use. p. 21
- Keep the power tool and ventilation slots clean. p. 21
Technical specifications
| Parameter | Value | Meaning | Pages |
|---|---|---|---|
| Rated voltage | 18 V | Operating voltage | p. 16 |
| Impact energy | 7.0 J | Impact energy per stroke according to EPTA-Procedure 05:2016 | p. 16 |
| Impact rate | 0–2900 min⁻¹ | Number of impacts per minute | p. 16 |
Where to find it in the PDF
- English Manual p. 13, 14, 15, 16
Table of contents
Manual images
Click an image to enlargeQuick guide from the manual
This cordless rotary hammer is designed for hammer drilling in concrete, masonry, and stone, as well as light to medium-duty chiseling. Before using the tool, ensure the battery is fully charged and the auxiliary handle is securely attached. Always use the correct operating mode for your task and ensure the dust protection cap is in good condition to prevent dust ingress.
Safety Instructions
General Power Tool Safety: Always keep your work area clean and well-lit. Do not operate power tools in explosive atmospheres. Keep children and bystanders away while operating the tool.
Hammer Safety: Wear ear protectors to prevent hearing loss. Use the auxiliary handle if supplied. Hold the tool by insulated gripping surfaces when performing operations where the cutting accessory may contact hidden wiring.
Product Description
The tool features an SDS-max tool holder, a user interface for mode selection and status monitoring, and vibration damping. It supports Bluetooth connectivity via an optional GCY 42 module.
Assembly
Battery: Insert the charged battery into the tool until it locks securely. To remove, press the release button and pull the battery out.
Auxiliary Handle: Always use the auxiliary handle. Rotate the lower gripping end to adjust the handle to a comfortable position and retighten.
Tool Change: The SDS-max system allows for easy tool changes. Clean and lightly grease the insertion end of the tool before inserting it into the tool holder until it locks automatically.
Operation
Operating Modes: Use the combi-switch to select between hammer drilling, chiseling, and Vario-Lock (for adjusting chisel position). Only change the mode when the tool is switched off.
Speed Control: Adjust speed/impact rate by varying the pressure on the on/off switch. Additional control is available via the user interface or smartphone app.
Advanced Features: The tool includes Kickback Control for rapid shut-off, Electronic Precision Control (EPC) for slow start-up, and Adaptive Speed Control for chiseling.
Connectivity
When the optional Bluetooth Low Energy Module GCY 42 is installed, you can register the tool, check its status, and configure settings via a smartphone app.
Maintenance and Cleaning
Always remove the battery before performing any maintenance or tool changes. Keep the tool and ventilation slots clean. Replace a damaged dust protection cap immediately.
Troubleshooting
The user interface provides status indications. If the status indicator flashes red, the rapid shut-off has been triggered; release the on/off switch and press it again to restart. If the temperature indicator is yellow or red, allow the tool to cool down.
Manufacturer information
Bosch
Practical help
Common problems
Tool does not start
Check battery charge level and ensure the lock-on button is not engaged.
Rapid shut-off (Kickback Control) triggered
Release the on/off switch and press it again to restart the tool.
Performance reduced or tool stops
Check the temperature indicator; the tool may be overheating. Allow it to cool down.
Before use
- Ensure the battery is fully charged.
- Check that the dust protection cap is intact.
- Ensure the auxiliary handle is securely attached.
- Check that the correct operating mode is selected.
- Verify that the Bluetooth module cover is closed.
Specs in practice
- Kickback Control
- Safety feature that automatically shuts off the tool if it rotates unexpectedly.
Images and diagrams
- Page 3: Overview of tool components (1-13).
- Page 4: Operation modes (D) and User Interface (E) details.
Model compatibility
- Compatible with Bosch GBA 18V and ProCORE18V batteries.
- Bluetooth connectivity requires the optional GCY 42 module.
Manual page author
Emily Carter
User documentation editor
Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.