Tools / Saws
HiKOKI C 1806DB Cordless Circular Saw User Manual
A comprehensive user guide for the HiKOKI C 1806DB cordless circular saw, covering safety instructions, operation, maintenance, and troubleshooting.
Quick answers from the manual
Quick answer
- The HiKOKI C 1806DB is a cordless circular saw for cutting wood. It features an electric brake, overload/overheat protection, and a silent mode. p. 15, 16
Key actions
- Charging the battery p. 16, 17
- Adjusting cutting depth p. 14, 17
- Mounting the saw blade p. 8, 17
First start
- Ensure the battery is fully charged and inserted until it clicks. Check that the lower guard moves freely. p. 12, 16
Problems and fixes
Tool doesn't run
Charge the battery or push it in until you hear a click.
p. 20
Tool suddenly stopped
Release the switch and eliminate the cause of the overload or let the battery cool.
p. 20Maintenance and reset
- Clean the motor ventilation holes with dry air after 50 hours of use. Clean the inside of the saw cover regularly. p. 18
Technical specifications
| Parameter | Value | Meaning | Pages |
|---|---|---|---|
| Voltage | 18 V | Operating voltage | p. 15 |
| No-Load Speed | 4500 min-1 / 2500 min-1 | Power mode / Silent mode | p. 15 |
Where to find it in the PDF
- Specifications p. 15
- Charging p. 16, 17
- Maintenance p. 18, 19
- Troubleshooting p. 20
Table of contents
Manual images
Click an image to enlargeQuick guide from the manual
The HiKOKI C 1806DB is a cordless circular saw designed for cutting various types of wood. Before using the tool, ensure the battery is fully charged and properly inserted. Always wear appropriate personal protective equipment, including eye and hearing protection. Before starting any cut, ensure the lower guard moves freely and the cutting depth is correctly adjusted to the thickness of the workpiece.
Safety Warnings
- General Power Tool Safety: Keep the work area clean and well-lit. Do not operate in explosive atmospheres. Keep children and bystanders away.
- Electrical Safety: Do not modify the plug. Avoid body contact with earthed surfaces. Do not expose to rain or wet conditions.
- Personal Safety: Stay alert, use common sense, and wear protective equipment.
- Cordless Circular Saw Safety: Keep hands away from the cutting area. Do not reach underneath the workpiece. Adjust cutting depth to the workpiece thickness. Use a rip fence or straight edge guide for ripping.
Parts Identification
Key components include the switch, switch lock, cutting depth lever, incline wing nut, lower guard, saw blade, base, LED light, and battery.
Operation
Adjustments
- Cutting Depth: Adjust using the cutting depth lever.
- Parallelism: Fine-tune the parallelism of the base sides and saw blade using the M6 fastening screws.
- Perpendicularity: Fine-tune using the perpendicularity adjustment.
- Mode Selection: Use the mode selector switch to toggle between Power mode (4500 min-1) and Silent mode (2500 min-1).
Cutting
Always support large panels to minimize the risk of blade pinching and kickback. Place the wider portion of the saw base on the solidly supported part of the workpiece. Never hold the workpiece in your hands or across your leg.
Maintenance and Inspection
- Saw Blade: Inspect regularly; sharpen or replace if dull or damaged.
- Mounting Screws: Regularly inspect and ensure all screws are tightened.
- Motor Maintenance: Clean ventilation holes with dry air after 50 hours of use.
- Lower Guard: Ensure it moves smoothly. Clean the space between the lower guard and gear cover with dry air.
- Terminals: Keep battery and tool terminals free of swarf and dust.
Troubleshooting
If the tool does not operate normally, check the battery charge and installation. If the tool stops suddenly, it may be due to overloading or overheating; release the switch and allow it to cool. If cutting performance is poor, check the blade condition and installation.
Manufacturer information
HiKOKI
Practical help
Common problems
Tool doesn't run
Charge the battery or ensure it is fully inserted until it clicks.
Tool suddenly stopped
Tool was overburdened or battery is overheated. Release the switch and let it cool.
Doesn't cut well
Blade is worn/missing teeth, bolt is loose, or blade is installed backwards.
Sawdust discharge is poor
Sawdust has accumulated in the saw cover; remove it.
Before use
- Check that the lower guard closes properly.
- Ensure the battery is fully charged.
- Check that the blade is sharp and correctly installed.
- Ensure the work area is clean and well-lit.
- Wear eye and hearing protection.
Specs in practice
- No-Load Speed
- 4500 min-1 (Power mode), 2500 min-1 (Silent mode)
- Cutting Depth (90°)
- 66 mm
- Cutting Depth (45°)
- 45 mm
Images and diagrams
- Figure 1: Parts identification
- Figure 11: Fine tuning parallelism
- Figure 14: Adjusting cutting depth
- Figure 23: Charging the battery
- Figure 33: Cleaning the lower guard
Model compatibility
- Use only HiKOKI designated batteries.
- Use saw blades for cutting wood, 165 mm to 162 mm diameter.
Manual page author
David Miller
Documentation analyst
Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.