HYCHIKA 1/2-220Nm Mechanical Torque Wrench
Comprehensive operating instructions for the HYCHIKA 1/2-220Nm mechanical torque wrench, covering setup, torque adjustment, maintenance, and safety precautions.
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The HYCHIKA 1/2-220Nm mechanical torque wrench is a precision tool designed for accurate tightening of bolts and nuts. It features a dual-scale adjustment system, allowing users to set specific torque values with high reliability. The tool is essential for automotive and mechanical applications where precise torque application is required to prevent damage to components.
How to Set Torque Values
To set the desired torque, follow these steps:

- Pull back the locker mechanism at the base of the handle to unlock the supplementary graduation scale.
- Rotate the handle to align the main graduation scale with the desired value.
- Use the supplementary graduation scale to fine-tune the setting by aligning the specific number with the center line.
- Once the desired torque is set, push the locker back into the locked position to secure the setting.
Operating Instructions
When using the torque wrench, ensure the correct socket is securely attached to the bolt or nut. Apply force to the handle in a clockwise direction. As you tighten, continue until you hear a distinct click sound. This click indicates that the pre-set torque value has been reached. Stop applying force immediately upon hearing the click to avoid over-tightening.

Maintenance and Storage
Proper care is vital for maintaining the accuracy of your torque wrench:
- Always store the wrench with the torque setting adjusted to the lowest scale value to relieve tension on the internal spring.
- Keep the tool in a dry place and apply a light coat of rustproof oil to prevent corrosion.
- Do not disassemble the tool yourself; professional inspection is recommended for regular maintenance.
- The tool should be verified for accuracy once a year or after every 5000 uses.
Safety Precautions
To ensure safe operation and longevity of the tool, adhere to the following:
- Never use the torque wrench as a hammer.
- Do not use pliers to grip or modify the wrench.
- Avoid using the tool in water or extremely damp environments.
- Always read the instructions carefully before first use to prevent safety accidents or damage to the equipment.
Manufacturer information
Hychika
Practical help
Common problems
Ensure the torque is set correctly and you are applying force in the clockwise direction. If it still fails, contact professional support.
The tool requires annual calibration or verification after 5000 uses to maintain precision.
Before use
- Verify the torque wrench is set to the correct value.
- Ensure the socket is compatible with the bolt or nut size.
- Check that the locker is in the locked position after adjustment.
- Ensure the tool is clean and free of debris.
Images and diagrams
- The locker mechanism is located at the bottom of the handle and must be pulled back to adjust the torque.
- The center line on the handle serves as the reference point for aligning the supplementary graduation.
- The click mechanism activates when the target torque is reached during clockwise rotation.
Model compatibility
- Designed for use with standard sockets.
- Suitable for bolts and nuts requiring 40-220Nm of torque.
Manual page author
Emily Carter
User documentation editor
Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.