Differences

This shows you the differences between two versions of the page.

--- techtalk:ref:tools026 [2020/05/21 05:47]
hippysmack [Field Calibration Check]
+++ techtalk:ref:tools026 [2020/05/24 03:14]
hippysmack [Field Calibration]
@@ Line 83: / Line 83: @@
 |{{:techtalk:ref:tools:torque_wrench_calibration_9_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:tools:torque_wrench_calibration_10_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:tools:torque_wrench_calibration_11_by_hippysmack.jpg?direct&300|}}|
+In regard to the accuracy of the weight, an in/lb clicker was tested with the 18 lb. steel block. \\
+The wrench was set at 72 in/lbs. with a 4" test length. \\
+The wrench clicked at exactly the end of the mark. \\
+So which wrench is calibrated correctly still remains to be professionally tested but the results are here for your interpretation. \\
+|  In/lb clicker wrench testing.  ||
+|{{:techtalk:ref:tools:torque_wrench_calibration_12_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:tools:torque_wrench_calibration_13_by_hippysmack.jpg?direct&300|}}|
+\\
+====== Field Calibration ======
+Again, there is nothing scientific about this procedure. But it will get you close using the calibration check above. \\
+If the internal spring has been compromised, the procedure below will not fix the problem. \\
+The spring spreads the load over the entire wrench's torque scale. \\
+So adjusting the tension on the low end will still throw off the torque on the mid to higher end if the spring is no longer functioning properly. \\
+The procedure below is a simple adjustment to correct a situation where the end nut has been allowed to turn and change the tension. \\
+This just helps to change the tension back. Some have used this procedure and seem to like it. \\
+Use the information at your own risk. \\
+  - **Turn the adjusting sleeve down to the lowest setting**.
+  - **Remove the nut on the end of the handle**.
+  - **Adjust the tension on the handle sleeve**.
+    * Hold the sleeve with one hand and turn the threaded bushing on the end clockwise or counterclockwise to adjust the tension. \\ (you'll have to turn the lock screw on the end periodically to keep it loose)
+  - **After you've turned the bushing in/out a little, put the wrench back together and tighten the nut on the end**.
+  - **Perform the calibration check above to see where the wrench clicks now**.
+  - **Repeat this calibration procedure until you get the wrench to click on the length mark as in the test check above**.
+{{:techtalk:ref:tools:torque_wrench_calibration_15_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) {{:techtalk:ref:tools:torque_wrench_calibration_160_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) {{:techtalk:ref:tools:torque_wrench_calibration_17_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) \\
+On the test wrench, the bushing was turned counterclockwise originally and the wrench clicked even farther toward the handle end once tested. \\
+Subsequent adjustments and tests with the bushing turned clockwise put the test wrench back into calibration (as well as this test will do anyway).
+{{:techtalk:ref:tools:torque_wrench_calibration_18_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)){{:techtalk:ref:tools:torque_wrench_calibration_19_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)){{:techtalk:ref:tools:torque_wrench_calibration_20_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) \\
+**Related videos:** \\
+  * [[https://www.youtube.com/watch?v=8HGO9Vv9eDE|Torque Wrench Stopped Clicking FIX and Calibration]]
+  * [[https://www.youtube.com/watch?v=XaqBA-xSGbc|Calibrate a Torque Wrench with a $5 Luggage Scale]]