Designed to prevent fastening failures, Mountz cam-over torque wrenches provide reliable and precise torque control for bolting applications that do not tolerate over-torque conditions. Improper torque control increases manufacturing costs and delays. As a quality control tool, the cam-over wrench allows any user to deliver the correct torque with confidence regardless of task and operator skill level.
The preset cam-over wrench does not feature an external adjustment scale. This wrench has an internal torque adjustment mechanism that must be preset using a torque tester. When purchasing a preset torque wrench, there are two options for setting the torque. For a minimal fee, the Mountz calibration lab will preset the tool at the requested torque setting. The wrench is delivered with an ISO 17025 certificate and calibration label. The other option is to preset the torque value for the wrench yourself. The video below will demonstrate and provide a general guideline to perform this process.
For measuring torque you will need a torque testing system, a hex key set, an adjusting key and optional adapters may be needed as well. Always select a torque analyzer or torque sensor that covers the torque range of the cam-over wrench.
Adjusting the Torque Setting for Cam-Over Wrench
- Connect the wrench to the testing device and use appropriate adapters if needed.
- Check the current setting of the wrench. Apply torque clockwise slowly until the wrench slips over.
- To adjust torque setting remove the end cap.
- To increase the torque setting, loosen the lock screw. Insert the adjusting key into the internal adjuster and turn clockwise.
- To decrease the setting, rotate counterclockwise below your desired setting. Then turn clockwise to increase torque to the desired value.
- Do not adjust settings above or below the recommended torque range of a tool.
- Check the wrench and continue adjusting until the desired torque is reached.
- Once the setting seems consistent, then record the final torque readings.
- Apply calibration label and seal.
To maintain consistent accuracy the wrench must be checked periodically. Overtime a wrench starts to drift out of tolerance and needs to be calibrated. A suitable calibration frequency depends on usage, application, risk tolerance, performance history and other factors. To minimize any production downtime, a good preventative maintenance plan should include having backup tools on-site.
Using a quality cam-over torque wrench and torque measurement equipment makes a safer world through accuracy and precision. Controlling torque is essential for companies to ensure their product’s quality, safety and reliability isn’t compromised. The failure of a three-cent fastener that isn’t properly tightened can lead to catastrophic or latent failures. Fasteners that are insufficiently fastened can vibrate loose and excessive torque can strip threaded fasteners.