Introduction
This manual provides essential information for the safe and effective operation, maintenance, and troubleshooting of your Snap-On QD2R200 Adjustable Click Type Torque Wrench. This precision instrument is designed for accurate torque application within a range of 40-200 in-lb, featuring a 3/8" drive and a compact ratchet head. Please read this manual thoroughly before using the tool to ensure proper function and to prevent injury or damage to the tool or workpiece.
Important Safety Information
- Always wear appropriate personal protective equipment, including eye protection, when using this tool.
- Do not exceed the maximum torque capacity of 200 in-lb. Over-torquing can damage the wrench and the fastener.
- Ensure the fastener and socket are clean and free of debris before applying torque.
- Do not use the torque wrench as a breaker bar or for loosening fasteners. It is designed for precise tightening only.
- Keep the torque wrench clean and dry. Avoid exposure to extreme temperatures or corrosive environments.
- Store the torque wrench in its protective case when not in use, and always set the torque to the lowest setting (40 in-lb) before storage to relieve spring tension.
Product Overview
The Snap-On QD2R200 torque wrench is a precision tool designed for accurate torque application. It features a durable metal construction, a comfortable grip, and a clear scale for setting desired torque values.
Figure 1: The Snap-On QD2R200 Adjustable Click Type Torque Wrench, showcasing its main body, drive head, and adjustment mechanism.
Figure 2: The Snap-On QD2R200 Torque Wrench stored within its protective hard case, alongside its accompanying documentation.
Setup and Initial Inspection
- Unboxing: Carefully remove the torque wrench from its packaging and protective case.
- Visual Inspection: Inspect the wrench for any signs of shipping damage, such as bends, cracks, or loose components. Do not use the tool if damage is observed.
- Familiarization: Locate the adjustment knob, main scale, and micrometer scale. Understand how these components interact to set the desired torque.
Operating Instructions
Setting Torque
- Unlock: Rotate the locking collar counter-clockwise to unlock the adjustment mechanism.
- Rough Setting: Turn the handle to align the top edge of the micrometer scale with the desired major torque value on the main scale.
- Fine Setting: Continue turning the handle until the desired minor torque value on the micrometer scale aligns with the center line of the main scale.
- Lock: Rotate the locking collar clockwise to secure the torque setting. Ensure it is fully locked before use.
Applying Torque
- Attach Socket: Securely attach the appropriate 3/8" drive socket to the square drive of the torque wrench.
- Engage Fastener: Place the socket onto the fastener, ensuring a firm and square engagement.
- Apply Force: Apply smooth, steady force to the handle in the tightening direction. Do not jerk or apply sudden force.
- Listen for Click: Continue applying force until you hear and feel a distinct "click" from the wrench. This indicates that the preset torque has been reached.
- Release: Immediately stop applying force once the click is detected. Do not continue to turn the wrench.
Note: The "click" mechanism is designed to provide an audible and tactile indication when the target torque is achieved. It is crucial to stop applying force at this point to prevent over-torquing.
Maintenance and Storage
- Cleaning: After each use, wipe the wrench clean with a soft, dry cloth. Do not use solvents or harsh chemicals that could damage the finish or internal components.
- Calibration: Torque wrenches are precision instruments and should be calibrated periodically by a qualified service center to maintain accuracy. The frequency depends on usage, but annual calibration is generally recommended.
- Storage: Always return the torque setting to the lowest value (40 in-lb) before storing the wrench. This relieves tension on the internal spring mechanism, prolonging its accuracy and lifespan. Store the wrench in its original protective case in a clean, dry environment, away from direct sunlight and extreme temperatures.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Wrench does not click at set torque. | Torque setting too high for application; Wrench needs calibration; Improper technique. | Verify correct torque setting; Have wrench calibrated; Ensure smooth, steady pull. |
| Inconsistent torque readings. | Wrench needs calibration; Damaged internal mechanism; Dirty components. | Have wrench calibrated; Contact Snap-on for service; Clean wrench thoroughly. |
| Difficulty adjusting torque setting. | Locking collar not fully disengaged; Dirt or debris in mechanism. | Ensure locking collar is fully unlocked; Clean adjustment mechanism. |
Specifications
- Model: QD2R200
- Brand: Snap-on
- Torque Range: 40-200 in-lb
- Drive Size: 3/8" Square Drive
- Head Style: Fixed Square, Compact-Ratchet
- Operation Mode: Mechanical, Click Type
- Material: Metal
- Finish: Powder Coated
- Color: Black
- Package Dimensions: Approximately 12 x 3 x 3 inches
Warranty Information
Snap-on products are manufactured to high standards and are backed by a manufacturer's warranty. For specific details regarding the warranty coverage for your QD2R200 torque wrench, please refer to the warranty documentation included with your purchase or visit the official Snap-on website. Keep your proof of purchase for warranty claims.
Customer Support
If you have any questions, require technical assistance, or need to arrange for service or calibration, please contact Snap-on customer support. Visit the official Snap-on website for contact information, service centers, and additional resources.
Website: www.snapon.com
