Introduction
This manual provides instructions for the safe and effective use of your GOYOJO 32-Piece Torque Wrench Set. This precision tool is designed for controlled and accurate tightening, with a torque range of 2-24 N.m, making it suitable for a wide range of applications including automotive, cycling, and general DIY projects. Please read this manual thoroughly before use and retain it for future reference.
Image: The complete GOYOJO 32-Piece Torque Wrench Set, showcasing the wrench, extension bar, and various bits and sockets.
Safety Information
- Always wear appropriate personal protective equipment, such as safety glasses, when using tools.
- Ensure the torque wrench and all accessories are clean and in good working condition before each use.
- Do not exceed the maximum torque rating of 24 N.m. Over-tightening can damage fasteners or the tool itself.
- Do not use the torque wrench as a standard ratchet or for breaking loose seized fasteners.
- Keep the tool away from children and store it in a dry, secure place.
- After use, always return the torque setting to its lowest value (2 N.m) to relieve spring tension and maintain calibration accuracy.
Package Contents
Your GOYOJO 32-Piece Torque Wrench Set includes the following items:
- 1x Torque Wrench (1/4" drive)
- 1x 1/4" Extension Bar (6.35 mm, 10.2 cm long)
- 1x 1/4" to 3/8" Drive Adapter
- 1/4" Drive Bits: T10, T15, T20, T25, T30, T40, M5, M6, M8, H2, H2.5, H3, H4, H5, H6, H8, PH1, PH2, PH3, Extended H5
- 3/8" Drive Short Sockets: 6 mm, 8 mm, 10 mm
Setup
Attaching Bits and Sockets
The torque wrench features a quick-release mechanism for easy attachment and removal of bits and sockets.
- Select the appropriate bit or socket for your task.
- Press the quick-release button on the head of the torque wrench.
- Insert the bit or socket firmly into the drive square.
- Release the quick-release button to secure the bit/socket. Ensure it is locked in place before use.
- To use 3/8" sockets, first attach the 1/4" to 3/8" drive adapter to the torque wrench, then attach the 3/8" socket to the adapter.
Image: Illustration of the quick-release button for installing and removing sockets, and the 72-tooth ratchet mechanism for smooth operation.
Operating Instructions
Setting the Torque Value
The torque wrench allows you to set precise torque values within its 2-24 N.m range.
- Unlock: Grip the handle and press down on the locking ring at the base of the handle.
- Adjust: While holding the locking ring down, rotate the handle. Turning clockwise increases the torque value, and turning counter-clockwise decreases it.
- Read the Scale: The wrench features a laser-etched scale for clear reading. The main scale indicates whole N.m values, and the micro-scale on the handle allows for fine adjustments. The wrench also supports ft.lb readings.
- Lock: Once the desired torque value is set, release the locking ring. The handle will spring back, securing the setting.
Image: Steps for unlocking the handle by pressing the locking ring and rotating to adjust the torque, then releasing to lock the setting.
Image: Close-up view of the laser-etched scales on the torque wrench, showing both Newton-meter (N.m) and Foot-pound (ft.lb) units for precise reading.
Using the Torque Wrench
Once the torque value is set and the bit/socket is attached:
- Place the bit/socket onto the fastener.
- Apply steady, increasing pressure to the handle. Do not jerk or apply sudden force.
- Continue applying pressure until you feel and hear a distinct "click" from the wrench. This indicates that the preset torque has been reached.
- Stop applying force immediately after the click. Further tightening will over-torque the fastener.
- The wrench features a 72-tooth ratchet head for smooth operation and reduced vibration.
Bi-Directional Operation
The torque wrench supports both clockwise and counter-clockwise operation. Adjust the small lever on the wrench head to select the desired direction:
- Move the lever to the left for counter-clockwise rotation.
- Move the lever to the right for clockwise rotation.
Image: Diagram showing the lever on the torque wrench head for switching between left (counter-clockwise) and right (clockwise) operational directions.
Accuracy
The GOYOJO torque wrench is calibrated to a high standard, offering an accuracy error of ±3%.
Image: A GOYOJO torque wrench being used on an automotive engine, highlighting its high precision calibration with a ±3% accuracy error.
Image: A GOYOJO torque wrench being used on a bicycle component, emphasizing its high precision calibration with a ±3% accuracy error.
Maintenance
- Cleaning: Wipe the torque wrench and accessories with a clean, dry cloth after each use. Do not use harsh chemicals or solvents.
- Storage: Store the torque wrench in its protective case in a dry, temperature-controlled environment. Always set the torque to the lowest value (2 N.m) before storage to relieve tension on the internal spring mechanism.
- Calibration: For optimal accuracy, periodic recalibration by a qualified professional is recommended, especially with frequent use.
Troubleshooting
Bit/Socket Stuck
If a bit or socket becomes difficult to remove:
- Ensure the quick-release button is fully depressed.
- Gently wiggle the bit/socket while pulling to dislodge it.
- Avoid excessive force, which could damage the bit or the wrench head.
No Click Sound
If the wrench does not click at the set torque:
- Verify that the torque setting is correctly locked.
- Ensure you are applying steady, increasing pressure, not a sudden jerk.
- If the issue persists, the wrench may require recalibration or professional inspection.
Specifications
| Feature | Specification |
|---|---|
| Model Number | GPT-32 |
| Torque Range | 2-24 N.m |
| Accuracy Error | ±3% |
| Drive Size | 1/4 inch (with 3/8 inch adapter) |
| Ratchet Teeth | 72-tooth |
| Material | Chrome Vanadium Steel |
| Finish | Polished |
| Certifications | ISO6789-2003, GB/T15729-2008, ASME B107.14M |
| Item Weight | 3.2 Pounds (approx. 1.45 kg) |
| Package Dimensions | 27.1 x 20.1 x 6.5 cm |
Warranty and Support
GOYOJO is committed to providing high-quality tools and exceptional after-sales service. Your GOYOJO Torque Wrench Set is covered by a customer satisfaction guarantee that addresses manufacturing defects.
If you encounter any issues with your GOYOJO torque wrench set, please do not hesitate to contact us. We are dedicated to offering a 100% satisfactory resolution to ensure your experience with our product is excellent. Our guarantee covers all manufacturing defects and provides comprehensive support to address your concerns quickly and efficiently.
