A torque wrench is a handy tool for fixing a nut, bolt, or screw. As it's a fundamental element in mechanics, it's crucial to use a properly functional torque wrench .
If your torque wrench doesn't click, the reasons may be incorrect calibrations or using the wrong-sized tool. Whatever the cause, it's better to troubleshoot it as quickly as possible.
Keep reading to find out how to fix a faulty torque wrench.
The first step to fix your torque wrench is to find out why it isn't clicking. There may be various reasons, but in general, they're easy to detect and repair. They include-
1. Incorrect calibrations
2. Worn out due to prolonged usage
3. Wrong-sized tool for the task
4. The torque fastener is over-tightened
To test whether or not your torque is clicking, you need to check the torque wrench calibration. Verify it by doing the following -
Measure from the square drive (end of the torque wrench) to the handle. Record the numbers in inches, preferably in whole numbers, for further use.
Mount the square drive on your bench vice, so the handle faces out of it. Secure the drive-in place with clamps.
The formula for determining the right setting for your torque wrench is - (handle distance x weight)/12.
Attach the weight to the handle by a connecting rope or wire. Ensure the cord isn't too long, or the weight will touch the ground while hanging. Lok out for the "clicking" sound.
In this way, you can determine whether your torque wrench is functioning correctly.
To fix a torque wrench, its calibrations are to be corrected. Follow these steps to calibrate your torque wrench properly -
1. The first step is to adjust the torque wrench using the weights. You can calibrate the screw located in the middle of the handle using a screwdriver.
2. After hanging the weights, if the wrench doesn't click, tighten the spring by screwing it clockwise and test again. Repeat the process until the wrench clicks.
3. If you hear a click after hanging the weight, lift the weight further up the handle, i.e., towards the head of the wrench. Keep repeating the process till you hear the click. Ensure the weight is lifted and set correctly each time rather than sliding up the handle.
4. If you do not hear a click, place the weight down the torque wrench handle, an inch at a time.
5. Find the point at which the wrench clicks by repeating the above steps. Once you find the spot, mark it. The significant part is called the "transition point."
6. Measure the length between the square drive and the point of transition with a measuring tape and record it for further use.
7. Calculate the applied torque using this formula - (measurement length x weight)/12.
8. Using the result found in the previous step, calibrate the wrench. It should function accurately and click.
Here's a video to help you with torque wrench click fixes and calibrations.
A torque wrench clicks when a specific amount of torque has been applied. The number of clicks depends on the task you're working. While screwing, one click is common. However, with heavy-weight tools, more than one click is required.
Click-style torque wrenches are standard in general mechanics for everyday use. They can be incredibly precise as long as they're calibrated correctly.
A torque wrench is used when applying a specific torque range while tightening screws, nuts, or bolts. It's a handy tool for tire changing, industrial maintenance, and general repairs.
While using a torque wrench, the "click" sound indicates that the wrench is calibrated with the appropriate torque setting and functioning accurately.
Click, and dial-type torque wrenches are considered the best as they are accurate and inexpensive.
It's pretty usual for torque wrench settings to wear out occasionally, so don't panic when your torque wrench doesn't click. Instead, follow the guidelines mentioned in the article, and you should be good.