1. Introduction
Thank you for choosing the Deli 4V Cordless Electric Screwdriver Set. This manual provides essential information for the safe and efficient use, maintenance, and troubleshooting of your new tool. Please read it thoroughly before first use and keep it for future reference.
Safety Information
- Always wear appropriate safety gear, such as eye protection, when operating the screwdriver.
- Keep the 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.
- Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.
- Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool.
- 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.
2. Package Contents
Your Deli 4V Cordless Electric Screwdriver Set includes the following items:
- Deli 4V Cordless Electric Screwdriver
- Storage Box
- USB Charging Cable (Type-C)
- 25+1 Screwdriver Bits (various types and sizes)
- Extended Connecting Rod
Figure 2.1: Complete Screwdriver Set in Storage Case
3. Product Overview
Familiarize yourself with the components of your electric screwdriver:
Figure 3.1: Screwdriver Components and Included Accessories
- Charging and Torque Gear Indicator: Displays battery level and selected torque setting.
- Torque Setting Button: Adjusts the torque level (Gear 1, 2, or 3).
- Reverse Button: Rotates the bit counter-clockwise for loosening screws.
- Forward Button: Rotates the bit clockwise for fastening screws.
- LED Work Light: Illuminates the work area.
- Hex Collet: Fits 1/4 inch (6.35mm) standard bits.
- USB Charging Port Type-C: For charging the internal battery.
Figure 3.2: Included Screwdriver Bits and Extended Connecting Rod
4. Setup
4.1 Initial Charging
It is recommended to fully charge the screwdriver before its first use to ensure optimal battery performance.
- Connect the provided USB Type-C charging cable to the charging port on the screwdriver.
- Connect the other end of the USB cable to a compatible USB power adapter (not included) or a computer USB port.
- The Charging Indicator will show the charging status. Once fully charged, the indicator will typically show a steady light.
4.2 Installing Screwdriver Bits
- Ensure the screwdriver is turned off and not operating.
- Select the appropriate screwdriver bit for your task from the included set.
- Insert the desired bit into the Hex Collet until it is securely seated.
- To remove a bit, simply pull it out from the Hex Collet.
Figure 4.1: Inserting a Screwdriver Bit
5. Operating Instructions
5.1 Adjusting Torque Settings
The screwdriver features a three-speed adjustable torque system, allowing you to select the appropriate power for different applications.
- Press the Torque Setting Button to cycle through the available torque gears.
- Observe the Torque Gear Indicator to confirm the selected gear.
| Gear | Torque Range | Recommended Use |
|---|---|---|
| Gear 1 | 0-5 N.m | Heavy-duty tasks, driving larger screws into dense materials. |
| Gear 2 | 0-4 N.m | General household repairs, assembling furniture. |
| Gear 3 | 0-3 N.m | Delicate tasks, electronics repair, small screws. |
Figure 5.1: Torque Gear Indicator
5.2 Fastening and Loosening Screws
- Select the appropriate bit and torque setting for your task.
- Position the bit onto the screw head.
- For fastening, press the Forward Button. For loosening, press the Reverse Button.
- The LED Work Light will activate automatically when the screwdriver is in operation, illuminating your work area.
Figure 5.2: Screwdriver in various applications
6. Maintenance
6.1 Cleaning
- Always disconnect the screwdriver from any charging source before cleaning.
- Wipe the tool with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
- Keep the ventilation openings clear of dust and debris to prevent overheating.
6.2 Storage
- Store the screwdriver and its accessories in the provided storage box in a dry, cool place, away from direct sunlight and moisture.
- Ensure the battery is partially charged (around 50%) before long-term storage to prolong battery life.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Screwdriver does not turn on. | Low or depleted battery. | Charge the screwdriver using the USB Type-C cable. |
| Screwdriver lacks power or stops during use. | Battery is low; incorrect torque setting for the task. | Recharge the battery. Increase the torque setting if the task requires more power. |
| Bit slips from screw head. | Incorrect bit size/type; worn bit; insufficient pressure. | Ensure you are using the correct bit for the screw. Replace worn bits. Apply firm, steady pressure. |
| Screwdriver overheats. | Prolonged heavy use; blocked ventilation. | Allow the tool to cool down. Clear any obstructions from ventilation openings. |
8. Specifications
| Feature | Specification |
|---|---|
| Model Number | DL-DP04-2B2 |
| Type | Cordless Screwdriver |
| Power Source | DC |
| Motor Type | Brushless |
| Max. Torque | 5 N.m |
| Battery Included | Yes (2000mAh) |
| Dimensions | 24 x 14 x 6 cm |
| Weight | 650g |
| Use | Home DIY |
| Origin | Mainland China |
| Certification | None |
| High-concerned chemical | None |
| Customization | Yes |
9. User Tips
- For Delicate Electronics: When working on sensitive items like game consoles (e.g., Nintendo Switch) or other small electronics, always start with the lowest torque setting (Gear 3) to prevent overtightening or stripping screws.
- Bit Selection: The set includes a wide variety of bits. Take a moment to identify the correct bit type and size for each screw to ensure a secure fit and prevent damage to both the screw and the bit.
- Battery Life: For optimal battery longevity, avoid completely draining the battery frequently. Recharge when the power indicator shows a low level.
- Work Light: Utilize the integrated LED work light for improved visibility in dimly lit areas, enhancing precision and safety.
10. Warranty and Support
For warranty information or technical support, please refer to the seller's policies or contact the retailer where the product was purchased. Keep your proof of purchase for any warranty claims.
