SUZUME 3PCS Torque Wrench Set User Manual

Introduction

This manual provides detailed instructions for the safe and effective use of your SUZUME 3PCS Torque Wrench Set. This set includes 1/4-inch, 3/8-inch, and 1/2-inch drive torque wrenches, designed for precise torque application in various maintenance tasks for bicycles, motorcycles, and cars. Please read this manual thoroughly before operation and retain it for future reference.

Safety Information

Always observe the following safety precautions to prevent injury or damage to the tool or workpiece:

• Wear appropriate personal protective equipment, such as safety glasses.
• Do not use the torque wrench as a breaker bar.
• Do not exceed the maximum torque capacity of the wrench.
• Ensure the wrench is clean and free from oil or grease before use.
• After use, always return the torque setting to the lowest value (but not below the lowest specified setting) to relieve spring tension and maintain calibration accuracy.
• Store the torque wrench in its protective case in a dry, clean environment.

Package Contents

Your SUZUME 3PCS Torque Wrench Set includes:

• 1 x 1/2-inch Drive Torque Wrench (10-170 Ft.Lb)
• 1 x 3/8-inch Drive Torque Wrench (5-45 Ft.Lb)
• 1 x 1/4-inch Drive Torque Wrench (20-220 In.Lb)
• 3 x Extension Bars (various sizes)
• 1 x User Manual
• 1 x Certificate of Calibration
• 1 x Storage Case

Image: The SUZUME 3PCS Torque Wrench Set, including the three wrenches, extension bars, and storage case.

Product Features

• Durable Material: Constructed from CR-V steel for durability, with a chrome-plated finish for corrosion and wear resistance. Features a lightweight aluminum alloy handle for comfortable operation.
• High Accuracy: Each wrench maintains an accuracy of ±3% after over 10,000 repeated uses, ensuring reliable and precise torque application.
• Audible Click Mechanism: Designed with a bi-directional ratchet head that produces a clear "click" sound and vibration when the preset torque value is reached, preventing over-tightening.
• Dual-Scales: Clearly visible, laser-printed torque scales (Ft.Lb and N.m or In.Lb and N.m) allow for easy setting and reading of torque values, ensuring long-term legibility.
• Reversible Ratchet Head: Allows for torque application in both clockwise and counter-clockwise directions. Includes a quick-release button for easy socket changes.

Image: A detailed view of the torque wrench's dual scale, highlighting the main and additional scales for precise torque measurement.

Image: Illustration of the reversible ratchet head and quick release button, demonstrating its functionality.

Setup

1. Unlocking the Handle: Grip the handle and rotate the locking knob at the base of the handle counter-clockwise to unlock the torque setting mechanism.
2. Setting the Torque Value:
   • Rotate the handle to align the desired main torque value on the main scale with the edge of the locking knob.
   • Then, rotate the handle further until the desired additional torque value on the micrometer scale aligns with the center line of the main scale.
   • Example: To set 23 Ft.Lb, align '20' on the main scale, then rotate the handle until '3' on the micrometer scale aligns with the center line.
3. Locking the Handle: Once the desired torque is set, rotate the locking knob clockwise until it is firmly tightened. This secures the setting and prevents accidental changes during use.
4. Attaching a Socket: Select the appropriate socket for your fastener. Press the quick-release button on the ratchet head and firmly attach the socket. Ensure it is securely seated.

Image: Visual guide demonstrating the steps to unlock, set, and lock the torque value on the wrench handle.

Operating Instructions

1. Select Drive Direction: Use the lever on the ratchet head to select the desired direction (clockwise for tightening, counter-clockwise for loosening, though torque measurement is typically for tightening).
2. Apply Torque: Place the socket onto the fastener. Apply smooth, steady pressure to the wrench handle. Do not use sudden jerking motions.
3. Listen for the Click: Continue applying pressure until you hear and feel a distinct "click" from the wrench. This indicates that the preset torque value has been reached.
4. Stop Applying Force: Immediately stop applying force once the click is detected. Further tightening will result in over-torquing and potential damage.
5. Remove Wrench: Remove the wrench from the fastener.

Image: A user applying a torque wrench to a car wheel, demonstrating the "click-stop" feature and the importance of stopping when the click is heard.

Maintenance

• Cleaning: Wipe the wrench clean with a soft, dry cloth after each use. Do not use solvents or harsh chemicals, as these can damage the finish or internal components.
• Storage: Always reset the torque wrench to its lowest setting (but not below the lowest specified setting) before storing. Store the wrench in its protective case in a dry, temperature-controlled environment to prevent rust and maintain calibration.
• Calibration: Torque wrenches are precision instruments and should be recalibrated periodically, typically once a year or after significant impact or heavy use, to ensure continued accuracy. Refer to the included Certificate of Calibration for details.

Troubleshooting

Specifications

Image: Overview of the three torque wrenches with their respective drive sizes, torque ranges, and approximate lengths.

Warranty and Support

For warranty information, technical support, or service inquiries, please refer to the documentation included with your product or contact SUZUME customer service. Keep your purchase receipt and Certificate of Calibration for warranty claims.

You can visit the official SUZUME store for more information: SUZUME Store