1. Product Overview
The SHAHE YSQ-70 preset torque screwdriver is designed for precise screw fastening and tightening applications where specific torque requirements are critical. This tool operates in a clockwise direction, allowing for preset torque values. Once the set torque value is reached, the screwdriver will idle, preventing overtightening and ensuring consistent fastening.
It is ideal for tasks involving precision instrument screw locking, circuit board fixing, and other applications demanding high accuracy in screw locking. Its robust design makes it suitable for various industries including electrical, light industry, mechanical manufacturing, and scientific research.
2. Setup and Assembly
2.1 Unboxing
Carefully open the product packaging. The package should contain:
- 1 x Torque Driver
- 10 x Short Batch Heads (bits)
- 1 x Instruction Manual
- 1 x Package Box
2.2 Inserting Bits
The torque screwdriver features a 1/4'' 6.35 hexagonal magnetic bit holder. To insert a bit, simply push the desired bit firmly into the magnetic holder until it is securely seated.
2.3 Adjusting Torque Value
The YSQ-70 allows for easy and automatic tension locking for precise torque settings. Follow these steps to adjust the torque:
- Pull Up to Unlock: Gently pull up the Auto-Locking Torque Adjustment Knob located at the base of the handle to unlock it.
- Rotate to Set: While unlocked, rotate the knob to set the desired torque value. The torque meter window displays the main scale (in.lb) and a minor scale for fine adjustments.
- Lock: Push the adjustment knob back down to lock the selected torque value.
3. Operating Instructions
The YSQ-70 torque screwdriver is designed for efficient and accurate fastening.
- Select and Set Torque: Choose the appropriate bit for your fastener and set the required torque value as described in Section 2.3.
- Fastening: Place the bit onto the fastener head and apply steady, clockwise pressure to turn the screwdriver.
- Torque Indication: When the tightening torque reaches the preset value, the screwdriver will automatically emit an audible "Click" sound, accompanied by a noticeable hand vibration. This indicates that the fastening is complete and the screwdriver is idling to prevent overtightening.
- Disassembly: For disassembling fasteners, the screwdriver can be used in the reverse (counter-clockwise) direction. Note that the torque limiting function only applies to clockwise tightening.
3.1 Product Demonstration Video
Watch this video for a visual guide on unboxing, bit insertion, torque adjustment, and general usage of the SHAHE YSQ-70 Torque Screwdriver.
4. Maintenance and Care
- Cleaning: Keep the screwdriver clean and free from dirt, dust, and debris. Wipe with a soft, dry cloth after each use. Do not use abrasive cleaners or solvents.
- Storage: Store the torque screwdriver in its original package box in a dry, cool place, away from direct sunlight and extreme temperatures.
- Bit Care: Ensure bits are clean and free from wear. Replace worn or damaged bits to maintain accuracy and prevent damage to fasteners.
- Calibration: For professional applications requiring certified accuracy, periodic calibration by a qualified service center is recommended.
- Material: The screwdriver is constructed from Copper Alloy with a durable nylon coat, providing strength and wear resistance.
5. Troubleshooting
If you encounter any issues with your SHAHE YSQ-70 Torque Screwdriver, please refer to the following common problems and solutions:
- No "Click" Sound or Vibration: Ensure the torque adjustment knob is properly locked after setting the desired torque. If the issue persists, the tool may require professional inspection or calibration.
- Inaccurate Torque: Verify that the torque value is correctly set and locked. Ensure the bit is fully seated and not worn. If accuracy issues continue, consider professional calibration.
- Difficulty Adjusting Torque: Check for any debris or obstruction around the adjustment knob. Ensure you are pulling up the knob to unlock it before rotating.
- Bits Not Holding Securely: Inspect the magnetic bit holder for any damage or debris. Ensure the bits are clean and correctly sized for the holder.
For problems not listed here or if solutions do not resolve the issue, please contact customer support.
6. Specifications
| Feature | Specification |
|---|---|
| Model | YSQ-70 |
| Torque Range | 10~70 in-lb |
| Torque Increment | 1 in-lb |
| Precision | ±6% |
| Length | 161.5 mm |
| Outside Diameter | Φ42 mm |
| Drive Head | 1/4'' (6.35 hexagonal) |
| Material | Copper Alloy, Nylon Coat |
| Standard Compliance | GB/T 15729-2008 |
7. User Tips
- Precision Applications: This torque screwdriver is highly suitable for delicate and precise applications, such as mounting and adjusting optical scopes on weapons, or working with sensitive electronic components where consistent torque is crucial.
- Avoid Overtightening: Always ensure the torque value is correctly set and locked before use to prevent overtightening, which can damage fasteners or components.
- Regular Checks: Periodically check the bits for wear and tear. Using worn bits can lead to cam-out and damage to screw heads.
8. Warranty and Support
For warranty information and customer support, please refer to the documentation provided at the time of purchase or contact the seller directly. Keep your purchase receipt as proof of purchase.
