<div dir="ltr"><div>The DigiTork wrench works the same as the clickers, it just have a nicer readout. Here is a parts diagram <a href="https://www.ereplacementparts.com/craftsman-44597-torque-wrench-parts-c-158286_159642_159644_162990.html">https://www.ereplacementparts.com/craftsman-44597-torque-wrench-parts-c-158286_159642_159644_162990.html</a></div><div>I have never worked on one of these, but it LOOKS LIKE you would adjust by tightening or loosening the pre-load nut (#26) on the diagram. I think you would need to remove the drum to adjust these nuts, so it might be possible (easier) to reposition the drum (where the torque readout is) to match whatever value it is actually clicking at.<br></div><br></div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Aug 17, 2018 at 11:36 AM, Don Hiscock <span dir="ltr"><<a href="mailto:don.hiscock@gmail.com" target="_blank">don.hiscock@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">I've had a Craftsman DigiTork torque wrench for over thirty five years, and still use it. It's stored with the spring completely relaxed, but after that long on a relatively inexpensive tool at the time, relying on its accuracy is really more a matter of trust than validation. That said, tests others have done on a number of torque wrenches, even (gasp) Harbor Freight, have shown them all to be generally OK. And a TR is pretty forgiving.<div><br></div><div>The procedure for *checking* calibration is pretty simple -- there's some very sophisticated lab equipment that uses the same mass-on-the-end-of-an-arm-<wbr>approach. But let's say one wants to CHANGE something in the calibration. Has anyone ever done that on a DigiTork? There must be thousands and thousands of these still in use, yet I've never found any instructions or guidance for calibrating one.</div><div><br></div><div>(I have noticed that as the wrench has aged, the little torque values printed inside the window seem to have gotten smaller...)</div></div><div class="gmail_extra"><br><div class="gmail_quote"><span class="">On Thu, Aug 16, 2018 at 11:49 PM, <span dir="ltr"><<a href="mailto:glemon@neb.rr.com" target="_blank">glemon@neb.rr.com</a>></span> wrote:<br></span><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span class="">That is a great tutorial on how to calibrate a torque wrench,I have to confess that I have two or three and I have never bothered in many, many years of ownership. For those that have done it or had it done how far off are they usually?<br>
<br>
Greg Lemon<br>
TR250<br>
<br>
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