1. Introduction
Thank you for choosing the TEENO Cordless Circular Saw T-3710-2-GU. This manual provides essential information for the safe and efficient operation, setup, maintenance, and troubleshooting of your new tool. Please read this manual thoroughly before first use and keep it for future reference. Proper use and care will ensure optimal performance and extend the life of your circular saw.
2. Important Safety Instructions
WARNING: Read all safety warnings, instructions, illustrations, and specifications provided with this power tool. Failure to follow all instructions listed below may result in electric shock, fire, and/or serious injury.
2.1 General Power Tool Safety Warnings
- Work Area Safety: Keep your work area clean and well-lit. Cluttered or dark areas invite accidents. 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 such as pipes, radiators, ranges, and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded.
- Personal Safety: Always wear eye protection. Use safety equipment such as dust masks, non-skid safety shoes, hard hats, or hearing protection when appropriate. Dress properly. Do not wear loose clothing or jewelry. Keep your hair and clothing away from moving parts.
- Tool Use and Care: Do not force the power tool. Use the correct power tool for your application. Disconnect the battery pack from the power tool 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.
2.2 Specific Circular Saw Safety Warnings
- Keep hands away from cutting area and the blade. Keep your second hand on the auxiliary handle, or motor housing. If both hands are holding the saw, they cannot be cut by the blade.
- Do not reach underneath the workpiece. The guard cannot protect you from the blade below the workpiece.
- Adjust the cutting depth to the thickness of the workpiece. Less than a full tooth of the blade should be visible below the workpiece.
- Never hold the workpiece in your hands or across your leg while cutting. Secure the workpiece to a stable platform. It is important to support the workpiece properly to minimize body exposure, blade binding, or loss of control.
- Hold the tool by insulated gripping surfaces when performing an operation where the cutting accessory may contact hidden wiring.
- Ensure the transparent dust cover is always in place and functioning correctly to improve visibility and maintain a clean work area.
- Always use the correct blade type for the material being cut. Using an incorrect blade can lead to poor performance and safety hazards.
3. Product Components and Identification
Your TEENO Cordless Circular Saw kit includes the following items:
- 1 x TEENO Cordless Circular Saw
- 4 x Multifunction Blades (76 mm diameter)
- 1 x Metal Graduated Base Plate
- 2 x 4.0 Ah Lithium-ion Batteries
- 1 x Fast Charger
- 1 x Pair of Gloves
- 1 x Hexagonal Wrench
3.1 Saw Components Diagram
Image Description: An exploded view diagram of the TEENO Cordless Circular Saw, highlighting key components such as the 4.0 Ah battery, micro-textured handle, lock button, dust cover, bolts, switch, LED light, metal base, safety lock, 75 mm saw blade, and angle scale.
3.2 Battery Features
Image Description: A detailed diagram of the 4000mAh lithium-ion battery, illustrating its various protection features including overheat protection, overvoltage protection, battery display, overcurrent protection, long battery life, overload protection, short-circuit protection, and chip protection. The image emphasizes that two removable batteries are included.
4. Setup and Assembly
4.1 Charging and Installing the Battery
- Connect the fast charger to a power outlet.
- Insert the 4.0 Ah Lithium-ion battery into the charger. Ensure the battery is fully charged before first use. The charger will indicate when charging is complete.
- Once charged, slide the battery into the battery slot on the circular saw until it clicks securely into place.
4.2 Installing or Changing the Saw Blade
Image Description: A four-panel image demonstrating the process of blade replacement and base plate adjustment. Panel 1 shows pressing the central shaft lock button. Panel 2 shows rotating the adjustment knob. Panel 3 shows lifting the lower plate (dust cover). Panel 4 shows pressing the lock button to replace the saw blade.
- Ensure the battery is removed from the tool before changing the blade.
- Press and hold the central shaft lock button (as shown in the diagram).
- Use the hexagonal wrench to loosen the blade retaining bolt.
- Lift the lower plate (dust cover) to access the blade.
- Carefully remove the old blade and replace it with the desired new blade, ensuring the teeth are oriented in the correct cutting direction.
- Tighten the blade retaining bolt firmly with the hexagonal wrench while holding the shaft lock button.
- Release the shaft lock button and ensure the blade is securely fastened.
4.3 Adjusting Cutting Depth and Angle
Image Description: An image illustrating the adjustable cutting angle and depth features of the circular saw. It shows the saw set for a 90° straight cut and indicates that the bevel angle is adjustable from 0° to 45°. A separate inset shows the removable metal base plate with graduation marks for precise adjustments.
- Cutting Depth: The saw features a removable metal base plate with graduation. Adjust the depth by loosening the appropriate knob, sliding the base plate to the desired depth, and then tightening the knob. Ensure only a minimal portion of the blade extends below the workpiece.
- Cutting Angle (Bevel): The base plate allows for angle adjustments from 0° to 45°. Loosen the angle adjustment mechanism, tilt the saw to the desired angle indicated on the scale, and then secure the mechanism.
5. Operating Instructions
5.1 Powering On and Off
- To start the saw, press the safety lock button and then squeeze the trigger switch.
- To stop the saw, release the trigger switch. The blade will come to a stop.
5.2 Making a Cut
Image Description: The TEENO Cordless Circular Saw in operation, cutting a piece of wood. The integrated LED light illuminates the cutting line, demonstrating its function for precise guidance in dark areas.
- Prepare the Workpiece: Securely clamp the material to be cut to a stable workbench. Mark your cutting line clearly.
- Position the Saw: Place the front edge of the saw's base plate on the workpiece, aligning the blade with your marked cutting line. Ensure the blade is not touching the workpiece before starting the saw.
- Start the Cut: Start the saw by pressing the safety lock and trigger. Allow the blade to reach full speed before engaging it with the workpiece.
- Guide the Saw: Apply steady, even pressure to guide the saw along the cutting line. The integrated LED light will illuminate the cutting path for improved visibility and precision.
- Complete the Cut: Continue through the workpiece until the cut is complete. Support the off-cut piece to prevent it from binding the blade.
- Stop the Saw: Release the trigger switch and allow the blade to stop completely before lifting the saw from the workpiece.
5.3 Recommended Materials and Blades
Image Description: A collage of four images showing the TEENO Cordless Circular Saw being used to cut different materials: wood, steel, PVC pipe, and marble. This demonstrates the tool's versatility for various applications.
Image Description: An image displaying the different types of multifunction blades included with the saw. These include a metal cutting blade, a stone cutting blade, a wood cutting blade, and abrasive discs (grinding discs), all with a 76 mm diameter and 10 mm inner diameter.
This circular saw is designed for cutting a variety of materials. Always select the appropriate blade for the material you are working with:
- Wood: Use the wood cutting blade for clean cuts in various types of wood and wood panels.
- Metal: Use the metal cutting blade for thin metals.
- PVC: Use the appropriate blade for cutting PVC pipes and other plastic materials.
- Stone/Tile: Use the stone cutting blade or abrasive discs for cutting stone, marble, or ceramic tiles.
6. Maintenance and Care
Regular maintenance ensures the longevity and safe operation of your TEENO Cordless Circular Saw.
- Cleaning: After each use, clean the tool with a soft, dry cloth. Remove any dust, chips, or debris from the motor vents, blade guard, and base plate. The transparent dust cover can be cleaned to maintain visibility.
- Blade Inspection: Regularly inspect blades for sharpness, damage, or missing teeth. Replace dull or damaged blades immediately.
- Battery Care: Store batteries in a cool, dry place away from direct sunlight. Do not store fully discharged batteries for extended periods.
- Storage: Store the circular saw and its accessories in a dry, secure location, out of reach of children.
7. Troubleshooting
This section addresses common issues you might encounter with your circular saw.
| Problem | Possible Cause | Solution |
|---|---|---|
| Saw does not start | Battery not charged or improperly installed; Safety lock not engaged; Faulty switch. | Ensure battery is fully charged and correctly inserted. Press the safety lock button before squeezing the trigger. If problem persists, contact support. |
| Poor cutting performance / Blade binding | Dull or incorrect blade; Incorrect cutting depth; Workpiece not secured; Overheating. | Replace with a sharp, correct blade for the material. Adjust cutting depth. Secure workpiece firmly. Allow tool to cool down if overheating. |
| Excessive vibration or noise | Loose blade; Damaged blade; Internal component issue. | Check if the blade is securely tightened. Replace damaged blades. If the issue persists, discontinue use and contact support. |
| Dust cover or base plate is loose | Adjustment mechanism not tightened; Wear and tear. | Ensure all adjustment knobs and bolts are securely tightened. If parts are worn, contact support for replacement. |
8. Technical Specifications
Image Description: A cutaway diagram illustrating the pure copper brushless motor of the TEENO Cordless Circular Saw. Key specifications are displayed: No-load speed of 20000 rpm, Rated voltage of 21V, and Power of 450W. Icons indicate multiple uses, efficient cutting, compact size, and excellent heat dissipation.
| Feature | Specification |
|---|---|
| Brand | TEENO |
| Model Number | T-3710-2-GU |
| Power Source | Battery Powered (Cordless) |
| Motor Type | Brushless |
| Rated Voltage | 21V |
| Battery Type | Lithium-ion |
| Battery Capacity | 2 x 4.0 Ah |
| No-load Speed | 20000 rpm |
| Power | 450W |
| Blade Diameter | 76 mm |
| Inner Hole Diameter | 10 mm |
| Blade Material | Alloy Steel |
| Adjustable Cutting Angle | 0° to 45° |
| Product Dimensions (L x W x H) | 12L x 22l x 35H cm |
| Handle Material | Plastic |
| Color | Red |
9. Warranty and Support
TEENO products are manufactured to high-quality standards. For information regarding warranty coverage, please refer to the warranty card included with your product or visit the official TEENO website. If you encounter any issues or require technical assistance, please contact TEENO customer support through the retailer where you purchased the product or via the contact information provided on the TEENO brand store page.
