How to Use a Torque Wrench

Using a torque wrench is important when you need to ensure that bolts or nuts are tightened to a specific torque specification. Here are the steps you can follow to use a torque wrench properly.

Choose the Right Torque Wrench

Torque wrenches come in various sizes and torque ranges. Make sure you select the right one that can handle the torque range needed for your wheel application.

• Beam torque wrench is the simplest and most economical type of torque wrench. It uses a calibrated lever arm to measure the amount of torque being applied to a fastener or bolt. The lever arm has a pointer that moves along a graduated scale, indicating the amount of torque being applied.
• Split beam torque wrench is a type of torque wrench that features a unique design where the torque is measured by deflecting a beam, which is split into two parts. One end of the beam is fixed to the wrench head, while the other end is attached to a handle. When torque is applied to the wrench, the beam deflects, and the degree of deflection is measured by a scale on the wrench body.
• Click torque wrench is the most popular and widely used. It has a spring-loaded mechanism that "clicks" when the preset torque value is reached, indicating that the desired torque has been achieved and the fastener has been tightened to the correct specification.
• Dial torque wrench has a calibrated dial that displays the amount of torque being applied as the user tightens the fastener. The wrench typically has a ratcheting mechanism that allows it to be used in tight spaces, and a locking collar that helps prevent accidental changes to the set torque value.

Set the Torque Level

Consult the manufacturer's specifications or your vehicle owner's manual to find the correct torque settings for the lug bolts or lug nuts on your wheels.

For a digital torque wrench use the digital controls to increase or decrease the torque value, then press the set button to verify your selection. For a click torque wrench, twist the base of the wrench so that it lines up with the desired torque level listed on the handle.

Apply Torque

Choose the socket with the correct size and secure it to the wrench. Place the torque wrench socket onto the lug nut or lug bolt. Apply force to the torque wrench handle in a smooth and steady motion until you hear or feel a click (for click-type wrenches) or see the desired value on the display (for digital wrenches). For beam and split-beam torque wrenches, keep an eye on the torque reading until you have reached the target level.

Torque Wrench Maintenance

To ensure that your torque wrench functions properly and continues to provide accurate readings, it is essential to perform regular maintenance. Here are some tips for torque wrench maintenance:

• After each use, wipe down the torque wrench with a clean cloth to remove any dirt or debris that may have accumulated. For stubborn grime, you can use a mild solvent or degreaser to clean the tool.
• Regular lubrication is important to ensure the smooth operation of your torque wrench. Apply a few drops of lubricating oil to the moving parts of the wrench, especially the ratchet mechanism.
• Torque wrenches need to be calibrated periodically to ensure that they provide accurate torque readings. The frequency of calibration depends on how often you use the wrench and the type of work you do. Consult the manufacturer's instructions for recommended calibration intervals.
• Proper storage is important to prevent damage to your torque wrench. Keep it in a clean, dry place, and store it in its original case or a dedicated storage box.
• Before each use, inspect your torque wrench for any signs of damage or wear. Look for cracks, chips, or other damage to the tool or the handle. If you notice any problems, have the wrench repaired or replaced.

All listed guides, data and/or calculations are for informational purposes only. LugBoltPattern.com does not warrant or make any representations regarding the accuracy of or the results of the use of this information.