HiKOKI C 1806DA Cordless Circular Saw: Handling Instructions and Safety Guide

Product Overview

This document provides handling instructions, safety warnings, and maintenance information for the HiKOKI C 1806DA Cordless Circular Saw.

The HiKOKI C 1806DA is designed for cutting various types of wood.

General Power Tool Safety Warnings

1) Work Area Safety

• Keep work area clean and well lit.
• Do not operate in explosive atmospheres.
• Keep children and bystanders away.

2) Electrical Safety

• Match power tool plugs to outlets.
• Avoid body contact with earthed surfaces.
• Do not expose to rain or wet conditions.
• Do not abuse the cord.
• Use outdoor extension cords if applicable.
• Use RCD protected supply in damp locations.

3) Personal Safety

• Stay alert and use common sense.
• Use personal protective equipment (eye protection mandatory).
• Prevent unintentional starting (ensure switch is OFF).
• Remove adjusting keys before operation.
• Do not overreach; maintain proper footing.
• Dress properly; keep hair and clothing away from moving parts.
• Use dust extraction facilities.
• Avoid complacency.

4) Power Tool Use and Care

• Do not force the tool; use the correct tool for the application.
• Do not use if the switch does not operate correctly.
• Disconnect power/remove battery before adjustments.
• Store idle tools out of reach of children and untrained users.
• Maintain tools and accessories; repair if damaged.
• Keep cutting tools sharp and clean.
• Use tool and accessories according to instructions.

5) Battery Tool Use and Care

• Recharge only with the specified charger.
• Use only with designated battery packs.
• Keep battery away from metal objects when not in use.
• Avoid contact with liquid ejected from battery.
• Do not use damaged or modified batteries.
• Do not expose battery or tool to fire or excessive temperature.
• Charge within specified temperature range.

6) Service

• Have tool serviced by a qualified repair person.
• Never service damaged battery packs.

Cordless Circular Saw Safety Warnings - Cutting Procedures

• DANGER: Keep hands away from cutting area and blade. Keep second hand on auxiliary handle or motor housing.
• Do not reach underneath the workpiece.

Kickback Causes and Related Warnings

Kickback is a sudden reaction to a pinched, jammed, or misaligned saw blade, causing the unit to move rapidly back toward the operator.

• Maintain a firm grip and position body to resist kickback forces.
• When blade binds, release trigger and hold saw motionless until blade stops.
• Restarting a saw in a workpiece: center blade in kerf.
• Support large panels to minimize blade pinching and kickback.
• Do not use dull or damaged blades.
• Ensure blade depth and bevel adjusting levers are tight.
• Use extra caution in blind areas.

Lower Guard Function

• Check lower guard for proper closing before each use.
• Check lower guard spring operation.
• Lower guard may be retracted manually only for special cuts (e.g., plunge cuts).
• Always ensure lower guard covers blade before placing saw down.

Additional Safety Warnings

1. Do not allow foreign matter into battery connection.
2. Never disassemble battery or charger.
3. Never short-circuit the battery.
4. Do not dispose of battery in fire.
5. Allow tool to cool if overheating.
6. Do not insert objects into charger ventilation slots.
7. Using an exhausted battery may damage the charger.
8. Bring battery to shop if charge life is too short.
9. Wear earplugs.
10. Use specified blade diameter.
11. Do not use abrasive wheels.
12. Do not use deformed or cracked blades.
13. Do not use high-speed steel blades.

Mounting and Operation

Adjusting the Angle of Inclination

Diagram (Fig. 9, Page 3) shows how to adjust the bevel angle from 0° to 45° using the incline wing bolt (9).

Adjusting Cutting Depth

Diagram (Fig. 10, Page 3) illustrates the process for adjusting the cutting depth.

Cutting Line

Diagram (Fig. 11, Page 3) shows how to use the guide for cutting at an angle.

Inclined Cutting

Diagram (Fig. 12, Page 3) illustrates inclined cutting using the guide.

Switch Operation

Diagram (Fig. 13, Page 3) shows the switch operation (ON/OFF) and the switch lock.

Remaining Battery Indicator

Diagrams (Fig. 14, 15, Page 3/4) show the remaining battery indicator switch and lamp.

Cutting Operations

Diagrams (Fig. 16, 17, Page 4) illustrate various cutting operations, including angled cuts.

Mounting and Dismounting Saw Blade

Diagrams (Fig. 18, 19, Page 5) detail the steps for removing and installing the saw blade, including using the hex. bar wrench (13).

Dust Collector Attachment

Diagram (Fig. 20, Page 6) shows how to attach the dust collector set (D).

Battery Insertion

Diagrams (Fig. 21, 23, Page 6) show how to insert the battery into the tool.

Charger Connection and Battery Charging

Diagram (Fig. 24, Page 6) illustrates connecting the charger and inserting the battery. Table 1 (Page 12) details pilot lamp indications during charging. Table 2 (Page 12) provides charging times for various battery types.

Maintenance and Inspection

1. Inspecting the Saw Blade

Ensure the saw blade is sharp and in good condition to maintain efficiency and prevent motor malfunction.

2. Inspecting Mounting Screws

Regularly check and tighten all mounting screws to prevent hazards.

3. Inspecting Carbon Brushes

Diagram (Fig. 22, Page 6) shows the location of carbon brushes. Replace worn carbon brushes with genuine HiKOKI parts. Keep brushes clean and ensure they slide freely.

4. Replacing Carbon Brushes

Carbon brushes can be removed by disassembling the brush caps with a screwdriver.

5. Motor Unit Maintenance

Clean motor ventilation holes with dry air after 50 hours of use to prevent dust accumulation and damage.

6. Inspecting and Maintaining the Lower Guard

Diagram (Fig. 25, Page 14) illustrates cleaning the lower guard and housing vent with an air gun. Ensure smooth movement of the lower guard.

7. Cleaning the Inside of the Saw Cover

Diagram (Fig. 26, Page 14) shows cleaning the saw cover, requiring blade removal.

8. Inspection of Terminals (Tool and Battery)

Check terminals for swarf and dust to prevent malfunction.

9. Cleaning on the Outside

Wipe the tool with a soft dry cloth or a slightly damp cloth. Avoid solvents.

10. Storage

Store in a cool, dry place (below 40°C) and out of reach of children. Ensure lithium-ion batteries are fully charged before storage.

Troubleshooting

Consult the table below for common issues and their solutions. If the problem persists, contact a dealer or HiKOKI Authorized Service Center.

Specifications

Parts and Accessories

Diagrams on pages 11, 16, and 17 show the parts and accessories included with the tool.

Key parts include:

• Switch (1)
• Cutting depth lever (3)
• Lower guard (4)
• Saw blade (7)
• Base (8)
• Battery (12)
• Hex. bar wrench (13)
• Dust collector set (D) (20)

Standard accessories may vary and are subject to change without notice.

Symbols Used

• ⚠️: To reduce the risk of injury, user must read instruction manual.
• ?️: Always wear eye protection.
• ?: Always wear hearing protection.
• V: Rated voltage
• n₀: No-load speed
• ▶️: Switching ON
• ⏹️: Switching OFF
• ?: Disconnect the battery
• ❗: Warning
• ?: Prohibited action
• ? (low): The battery remaining power is nearly empty. Recharge soonest possible.
• ? (half): The battery remaining power is a half.
• ? (full): The battery remaining power is enough.