Tools / Power Tools
Bosch GCM 18V-305 GDC Professional Cordless Sliding Mitre Saw User Guide
Quick guide for the Bosch GCM 18V-305 GDC Professional cordless sliding mitre saw, covering assembly, operation, safety instructions, and maintenance.
Table of contents
Quick guide from the manual
This document provides essential instructions for the safe and efficient operation of the Bosch GCM 18V-305 GDC Professional cordless sliding mitre saw. Key tasks include proper mounting, battery installation, blade changing, and adjusting mitre and bevel angles. Always ensure the tool is mounted on a stable, level surface before use.
Device Description
The GCM 18V-305 GDC is a high-performance cordless sliding mitre saw designed for cutting wood and wood-like products. It features a glide arm mechanism, a user interface for speed preselection, and Bluetooth connectivity for status monitoring.
Assembly
Before performing any maintenance or tool changes, remove the battery. Ensure all parts are present: the saw with a pre-fitted blade, locking knob, hex keys, screw clamp, SDS bolt, and dust bag. Mount the tool securely to a workbench or a compatible Bosch saw stand (e.g., GTA 2500 W, GTA 3800).
Operation
To operate, unlock the glide arm by pulling the transport safety lock. Use the handle to guide the glide arm. The saw supports both standard mitre and bevel angle adjustments. Always ensure the workpiece is firmly clamped against the fence and table before starting the cut. Use the laser line feature for precise positioning.
Maintenance and Cleaning
Keep the tool and ventilation slots clean for safe operation. The retracting blade guard must move freely and close automatically. Regularly clean the guide roller and remove dust and chips after each use using compressed air or a brush.
Safety
Always wear eye and hearing protection. Keep hands at least 100 mm away from the saw blade. Never cross your hands when cutting. Ensure the workpiece is properly supported and clamped. Do not use the tool in explosive atmospheres or near flammable materials.
Manufacturer information
Bosch
Practical help
Common problems
Saw blade becomes wedged in the workpiece
Ensure the locking knob and clamping handle are firmly tightened before sawing.
Dust extraction is blocked
Switch off the tool, remove the battery, wait for the blade to stop, and clear the blockage.
Laser beam is misaligned
Check the laser alignment as described in the 'Adjusting the laser' section of the manual.
Before use
- Ensure the tool is mounted on a stable, level surface.
- Check that the saw blade is correctly fitted and sharp.
- Verify that all protective devices are functioning correctly.
- Ensure the workpiece is firmly clamped.
- Check the battery charge level.
Specs in practice
- No-load speed
- The rotational speed of the blade when not cutting (3000–4000 min⁻¹).
- Saw blade diameter
- The required blade size is 305 mm.
- Hole diameter
- The arbor hole diameter for the blade is 30 mm.
Model compatibility
- Compatible with Bosch ProCORE18V and GBA 18V batteries.
- Compatible with Bosch saw stands: GTA 2500 W, GTA 2500 Compact, GTA 2600, GTA 3800.
- Bluetooth Low Energy Module GCY 42 can be installed for connectivity features.
Manual page author
Michael Turner
Technical manual editor
Reviews PDF manuals for structure, safety notes, and practical product details so readers can find the right information quickly.