What are the three types of test that utilise torque measuring tools?
• The first of the three tests is the marking test. The marking test is used to verify the torque of a previously tightened fastener. This is done by making a clear mark on the surface of the nut, bolt or screw and continuing the mark onto the surface being clamped. This acts as a reference point. The fastener may then be untightend and then retightened until the marks are again in line. The torque value can then be read from the torque tool display • The second of the tests is the just move test. Again this test is used to determine the torque setting of a previously tightened fastener. Using a torque measuring tool, a tightening torque is applied to the fastener until movement is just seen or felt. This torque is deemed to be a good indication of the original torque applied to the fastener • The third and last test is the break loose test. The break loose test is another method of checking the torque applied to a previously tightened fastener. Torque is applied in the direction that
