Common Torque Wrench Problems and How to Fix Them
A torque wrench is an essential tool for applying precise torque to fasteners, but like any tool, it can wear out or malfunction over time. If your torque wrench isn’t working correctly, it could lead to over-tightening, under-tightening, or even tool failure. Here are some of the most common problems and what you can do to fix them.
1. Inaccurate Readings
Problem: Your torque wrench isn’t tightening to the correct torque setting, which can lead to loose or over-tightened fasteners.
Causes:
The wrench is out of calibration.
Internal components have worn out.
Dirt or debris is affecting the mechanism.
Solution:
Get your wrench professionally calibrated at least once a year or every 5,000 cycles.
Keep your wrench clean and store it properly when not in use.
2. Slipping Mechanism
Problem: The wrench slips while applying torque, causing inconsistent tightening.
Causes:
The internal ratchet mechanism is worn out.
The adjustment spring is damaged or misaligned.
Lubrication has dried up inside the wrench.
Solution:
Have the wrench inspected and repaired by a professional.
Apply proper lubrication (if recommended by the manufacturer).
If the ratchet is heavily worn, it may need replacement.
3. Broken or Worn-Out Ratchet
Problem: The ratchet skips, doesn’t engage, or feels loose when turning.
Causes:
Overuse and wear over time.
Using the torque wrench as a breaker bar (which it’s not designed for).
Internal gears have been stripped.
Solution:
Stop using the wrench and get the ratchet repaired or replaced.
Never use a torque wrench to break loose stuck bolts—it’s for tightening only!
4. No “Click” or Digital Readout Issues
Problem: The wrench doesn’t produce the expected “click” (on mechanical models) or displays erratic readings (on digital models).
Causes:
The internal spring mechanism is damaged.
The wrench is out of calibration.
Digital models may have low batteries or faulty sensors.
Solution:
Get the wrench recalibrated.
Replace the batteries in digital wrenches.
If the spring mechanism is broken, seek professional repair.
5. Hard to Adjust or Won’t Lock in Place
Problem: The torque adjustment dial is difficult to turn, or the settings won’t stay locked.
Causes:
Dirt or debris inside the adjustment mechanism.
The locking mechanism is broken or worn out.
The wrench has been dropped or damaged.
Solution:
Clean the wrench thoroughly and lubricate if needed.
If the lock doesn’t hold settings, have it repaired before further use.
6. Stiff or Jerky Movement
Problem: The wrench doesn’t operate smoothly, making it harder to apply torque consistently.
Causes:
Internal components may be dry or corroded.
The wrench has been dropped or exposed to moisture.
Solution:
Store your wrench properly in a dry, protective case.
Have it inspected for internal damage if movement feels rough.
Preventative Maintenance: How to Keep Your Torque Wrench in Top Shape
✔ Calibrate Regularly: At least once a year or every 5,000 cycles.
✔ Use Properly: Don’t use it as a breaker bar, and always return the setting to zero after use (for mechanical wrenches).
✔ Store Correctly: Keep in a dry case, away from moisture and extreme temperatures.
✔ Clean After Use: Wipe it down to remove dirt, grease, or debris.
At Torque Medic, we specialize in torque wrench calibration, repair, and maintenance to keep your tools accurate and reliable. If you're experiencing any of these issues, don’t wait—get your wrench checked today!
🔧 Need service? Contact us now!