1. Introduction and Product Overview
This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your HIKOKI G 3613DB MultiVolt Brushless Grinder. Please read this manual thoroughly before using the tool to ensure proper handling and to prevent accidents.
Figure 1: HIKOKI G 3613DB MultiVolt Brushless Grinder. This image displays the grinder from a slightly elevated angle, highlighting its compact design, the attached battery pack, and the grinding disc. The green and black color scheme is prominent, along with the 'BRUSHLESS' and 'HIKOKI' branding on the tool body.
2. Product Features
The HIKOKI G 3613DB Grinder is designed for efficient and powerful grinding tasks. Key features include:
- MultiVolt Brushless Motor: Provides high power output and extended tool life.
- Variable Speed System: Features a 5-level variable speed control for optimal performance across different applications.
- Automatic Mode: Automatically adjusts speed between high (9500 /min) and low (5500 /min) based on the load, enhancing efficiency.
- Compact Design: With a total length of 358 mm and a weight of 2.8 kg, it offers improved maneuverability.
- Standard Disc Diameter: Compatible with 125 mm grinding discs.
- M14 Spindle: Standard spindle size for wide accessory compatibility.
3. Safety Instructions
Always follow basic safety precautions to reduce the risk of fire, electric shock, and personal injury when operating power tools. Keep this manual for future reference.
General Power Tool Safety Warnings:
- Work Area Safety: Keep work area clean and well lit. Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust.
- Electrical Safety: Avoid body contact with earthed or grounded surfaces. Do not expose power tools to rain or wet conditions.
- Personal Safety: Always wear eye protection. Use hearing protection when operating for extended periods. Dress properly; do not wear loose clothing or jewelry.
- Tool Use and Care: Do not force the power tool. Use the correct power tool for your application. Disconnect the plug from the power source and/or remove the battery pack before making any adjustments, changing accessories, or storing power tools.
- Battery Tool Use and Care: Recharge only with the charger specified by the manufacturer. Use power tools only with specifically designated battery packs.
Specific Grinder Safety Warnings:
- This power tool is intended to function as a grinder. Read all safety warnings, instructions, illustrations and specifications provided with this power tool.
- Do not use accessories which are not specifically designed and recommended by the tool manufacturer.
- Always ensure the guard is correctly positioned and securely fastened before operation.
- Hold the tool firmly with both hands during operation.
- Keep hands clear of the rotating accessory.
4. Setup
4.1 Attaching the Grinding Disc
- Ensure the tool is switched off and the battery pack is removed.
- Press the spindle lock button to secure the spindle.
- Place the inner flange onto the spindle.
- Position the grinding disc onto the inner flange, ensuring it sits flat.
- Thread the outer flange onto the spindle and tighten it securely using the provided wrench.
- Release the spindle lock button.
4.2 Attaching the Side Handle
The side handle can be screwed into either the left or right side of the gear housing, depending on user preference and application. Ensure it is tightened firmly before use.
4.3 Installing the Battery Pack
Align the battery pack with the receptacle on the tool handle and slide it in until it clicks into place. To remove, press the release button on the battery pack and slide it out.
5. Operating Instructions
5.1 Powering On/Off
- To start the grinder, slide the switch forward to the "ON" position.
- To stop the grinder, slide the switch backward to the "OFF" position.
5.2 Adjusting Speed
The grinder features a 5-level variable speed control. Use the speed selector dial to choose the desired RPM for your application. For general grinding, a higher speed is often suitable, while for polishing or delicate work, a lower speed may be preferred.
The automatic mode (indicated by a specific setting on the dial) will automatically adjust the speed between 9500 /min and 5500 /min based on the load detected by the tool.
5.3 Grinding Techniques
- Always hold the grinder firmly with both hands.
- Allow the disc to reach full speed before contacting the workpiece.
- Apply light, even pressure. Do not force the tool.
- Maintain a consistent angle between the disc and the workpiece for optimal results and to prevent kickback.
- Avoid grinding directly into corners or edges, as this can cause the disc to bind.
6. Maintenance
Regular maintenance ensures the longevity and safe operation of your HIKOKI G 3613DB Grinder.
- Cleaning: Regularly clean the ventilation openings of the tool to prevent dust buildup, which can lead to overheating. Use a soft brush or compressed air.
- Disc Inspection: Before each use, inspect the grinding disc for cracks, chips, or excessive wear. Replace damaged discs immediately.
- Guard Inspection: Ensure the guard is securely attached and undamaged.
- Battery Care: Store batteries in a cool, dry place. Do not expose them to extreme temperatures. Follow the charging instructions provided with your battery charger.
- General Inspection: Periodically check all screws and fasteners for tightness. Tighten any loose components.
For any repairs or internal maintenance, contact an authorized HIKOKI service center.
7. Troubleshooting
This section addresses common issues you might encounter with your grinder. If the problem persists, contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Tool does not start. | Battery not charged or not properly inserted. | Ensure battery is fully charged and correctly seated. |
| Reduced power or speed. | Low battery charge; excessive load; clogged ventilation. | Recharge battery; reduce pressure on workpiece; clean ventilation openings. |
| Excessive vibration. | Damaged or improperly mounted grinding disc. | Inspect and replace disc if damaged; ensure disc is correctly mounted and tightened. |
| Tool overheats. | Clogged ventilation openings; continuous heavy use. | Clean ventilation; allow tool to cool down during prolonged use. |
8. Specifications
| Attribute | Value |
|---|---|
| Model Number | G 3613DB 36V (G3613DBJRZ) |
| Brand | HIKOKI |
| Manufacturer | HiKOKI |
| Voltage | 36 Volts |
| Power | 36 Watts |
| No-load Speed | 3,000 - 9,500 rpm (Auto mode: 5500 /min - 9500 /min) |
| Disc Diameter | 125 mm |
| Spindle Thread | M14 |
| Product Dimensions (L x W x H) | 29.5 x 39.5 x 21 cm |
| Item Weight | 1 kilogram (Note: Product description states 2.8 kg, using 1kg from specifications table as per input) |
| Power Source | Battery powered |
9. Warranty and Support
For warranty information, please refer to the warranty card included with your product or visit the official HIKOKI website. Keep your purchase receipt as proof of purchase.
For technical support, spare parts, or service inquiries, please contact your local authorized HIKOKI service center or the retailer from whom you purchased the product. You can find contact information on the official HIKOKI website or through your retailer.
Note: Availability of spare parts information is currently unavailable as per product data. Please consult with an authorized service center for specific part inquiries.
