1. Introduction
Thank you for choosing the Weytoll 12V Portable Angle Grinder. This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your new tool. Please read this manual thoroughly before use and keep it for future reference.
Key Features:
- Brushless Motor: Provides strong power, high efficiency, low noise, and long service life without generating sparks.
- High Speed: 19500 RPM for reliable and productive work.
- Thickened Baffle Design: Reduces workpiece debris splashing, enhancing safety and extending machine life.
- Efficient Heat Dissipation: Vent holes on the housing prevent overheating during operation.
- Humanized Spindle Lock: Allows for easy and quick swapping of grinding discs.
- Ergonomic Non-slip Handle: Designed for comfortable one-hand operation with a convenient side toggle switch.
- Versatile Applications: Ideal for polishing, sanding ceramic tile, wood, stone, and steel.
2. Package Contents
Carefully unpack your angle grinder and check for any damage. Ensure all items listed below are present:
- 1x Mini Angle Grinder
- 2x Abrasive Discs
- 2x 12V Li-ion Batteries
- 1x Power Supply (Charger)
- 1x Hex Wrench
- 1x Carrying Case
3. Setup
3.1 Battery Charging and Installation
- Before first use, fully charge both 12V Li-ion batteries using the provided power supply (charger). Connect the charger to a standard power outlet and then to the battery. The charger indicator light will show charging status (e.g., red for charging, green for fully charged).
- Once charged, slide a battery into the battery slot at the base of the angle grinder until it clicks securely into place.
- To remove the battery, press the release button (if present) and slide the battery out.
3.2 Grinding Disc Installation
Always ensure the tool is switched off and the battery is removed before installing or changing discs.
- Press and Hold Spindle Lock: Locate the humanized design spindle lock button on the grinder head. Press and hold it to prevent the spindle from rotating.
- Loosen Flange: Use the provided hex wrench to loosen the outer flange nut by turning it counter-clockwise. Remove the outer flange.
- Position Disc: Place the abrasive disc onto the inner flange, ensuring it is centered and flush. The disc should have a 10mm bore to fit the spindle.
- Replace Flange: Place the outer flange back onto the spindle, securing the disc.
- Tighten Flange: Use the hex wrench to tighten the outer flange nut clockwise until the disc is firmly secured. Do not overtighten.
- Release Spindle Lock: Release the spindle lock button. The disc should now be securely installed and ready for use.
4. Operating Instructions
4.1 Safety Precautions
- Always wear appropriate personal protective equipment (PPE), including safety glasses, gloves, and hearing protection.
- Ensure the workpiece is securely clamped or held to prevent movement during operation.
- Keep hands and body parts clear of the rotating disc.
- Do not force the tool; let the disc do the work.
- Avoid operating in damp or wet conditions.
- Ensure proper ventilation when working, especially with materials that produce dust or fumes.
- Never use damaged or incorrect discs.
4.2 Power On/Off
- To turn on the grinder, slide the side toggle switch to the 'ON' position.
- To turn off the grinder, slide the side toggle switch to the 'OFF' position.
4.3 General Operation
- Hold the grinder firmly with one hand, ensuring a secure grip on the non-slip handle.
- Position the disc against the workpiece at the desired angle.
- Turn on the grinder and allow the disc to reach full speed before making contact with the material.
- Apply gentle, consistent pressure. Do not press too hard, as this can reduce efficiency and damage the disc or motor.
- Move the grinder smoothly across the workpiece for even results.
- When finished, lift the grinder from the workpiece and then turn it off. Wait for the disc to stop completely before setting the tool down.
4.4 Applications
- Polishing: Use appropriate polishing pads for surface conditioning.
- Cutting: Suitable for cutting various materials like marble, plastic, and wood with the correct cutting discs.
- Sanding/Grinding: Effective for sanding and grinding tasks on ceramic tile, wood, stone, and steel.
5. Maintenance
Regular maintenance ensures the longevity and optimal performance of your angle grinder.
5.1 Cleaning
- Always disconnect the battery before cleaning.
- Wipe the tool housing with a clean, damp cloth. Do not use harsh chemicals or abrasive cleaners.
- Regularly clear any debris from the thickened baffle and heat dissipation holes to maintain effective cooling. Use compressed air if necessary.
5.2 Disc Replacement
Refer to Section 3.2 for detailed instructions on how to safely replace grinding discs.
5.3 Battery Care
- Store batteries in a cool, dry place away from direct sunlight and extreme temperatures.
- Do not allow batteries to fully discharge for extended periods. Recharge them periodically if not in use.
- Do not attempt to open or modify batteries.
6. Troubleshooting
If you encounter issues with your angle grinder, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Grinder does not turn on | Battery not charged or improperly installed Power switch in 'OFF' position | Ensure battery is fully charged and correctly inserted. Check if the side toggle switch is in the 'ON' position. |
| Reduced power or speed | Low battery charge Overloading the tool Worn or incorrect disc | Recharge the battery. Reduce pressure on the workpiece. Replace the disc if worn or ensure it's suitable for the task. |
| Excessive vibration or noise | Disc improperly installed Damaged or unbalanced disc | Re-install the disc, ensuring it is centered and tightened correctly. Replace the disc with a new, undamaged one. |
| Tool overheats | Blocked heat dissipation holes Continuous heavy use | Clean the heat dissipation holes. Allow the tool to cool down during prolonged use. |
If the problem persists after trying these solutions, please contact customer support.
7. Specifications
| Feature | Specification |
|---|---|
| Brand | Weytoll (or JUJU) |
| Model | 12V Portable Angle Grinder |
| Voltage | 12V |
| Rotation Speed | 19500 RPM |
| Sawblade Diameter | 76mm (3 inches) |
| Bore Diameter | 10mm |
| Motor Type | Brushless Copper Motor |
| Package Length | 26 cm |
| Package Width | 14 cm |
| Package Height | 9 cm |
| Package Weight | 1.5 kg |
8. User Tips
- Choose the Right Disc: Always select the appropriate abrasive or cutting disc for the material you are working on. Using the wrong disc can lead to poor results or safety hazards.
- Battery Management: Keep spare batteries charged for uninterrupted work. Avoid completely draining the battery to prolong its lifespan.
- Workpiece Stability: Ensure your workpiece is always stable and secured. This prevents kickback and allows for more precise cuts or grinds.
- Cleanliness is Key: Regularly clean the tool, especially the air vents, to maintain optimal performance and prevent overheating.
- Practice Makes Perfect: If you are new to angle grinders, practice on scrap material to get a feel for the tool before working on your main project.
9. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the documentation provided with your purchase or contact the seller directly. Keep your proof of purchase for any warranty claims.
