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techtalk:ref:tools123 [2018/05/20 08:43] ixl2relax |
techtalk:ref:tools123 [2018/05/21 07:56] ixl2relax [REF: Tools - Sub-023] |
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[[:techtalk:menu|{{ :techtalk:gototechnicalmenu.jpg|}}]] | [[:techtalk:menu|{{ :techtalk:gototechnicalmenu.jpg|}}]] | ||
- | ====== REF: Tools - Sub-023 ====== | + | ====== REF: Tools - 123 ====== |
====== Torque Wrenches ====== | ====== Torque Wrenches ====== | ||
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* **Start all of the fasteners in a component before you tighten any of them**...not even hand tight. Any misalignment of the part can side load the last fastener enough to prevent it starting or promote cross threading. ((Jollly Rogers from the XLFORUM http://xlforum.net/forums/showthread.php?t=1959533)) | * **Start all of the fasteners in a component before you tighten any of them**...not even hand tight. Any misalignment of the part can side load the last fastener enough to prevent it starting or promote cross threading. ((Jollly Rogers from the XLFORUM http://xlforum.net/forums/showthread.php?t=1959533)) | ||
* **By hand, all dry bolts should run in rather easily**. If not, there may be trash/ debris caught up in the threading (which can alter you reaching proper torque values). Turn all bolts in sequence by hand until snugged. | * **By hand, all dry bolts should run in rather easily**. If not, there may be trash/ debris caught up in the threading (which can alter you reaching proper torque values). Turn all bolts in sequence by hand until snugged. | ||
- | * **If you're using thread dressing** (oil, loctite / anti seize, etc.), these will induce drag on the bolt(s). You can use a socket, without the wrench, to turn the bolts to snug by hand. You will also need to reduce the final torque on your fasteners since thread dressings will add pre-load to the threads. This pre-load is added on top of your final torque. You can use the [[techtalk:ref:tools01-023#wet_torque_value_chart_for_lubed_threads|wet charts]] below as a guide to decide how to adjust your final torque. This will vary on how much and what type dressing is used on the threads as well as proper use of the torque wrench. | + | * **If you're using thread dressing** (oil, loctite / anti seize, etc.), these will induce drag on the bolt(s). You can use a socket, without the wrench, to turn the bolts to snug by hand. You will also need to reduce the final torque on your fasteners since thread dressings will add pre-load to the threads. This pre-load is added on top of your final torque. You can use the [[techtalk:ref:tools123#wet_torque_value_chart_for_lubed_threads|wet charts]] below as a guide to decide how to adjust your final torque. This will vary on how much and what type dressing is used on the threads as well as proper use of the torque wrench. |
* **Align each bolt** chamfer with it's corresponding threaded hole and counter rotate the fastener to the tightening direction a few degrees until you feel the threads "jump", that indicates the threads are aligned to start in sync. | * **Align each bolt** chamfer with it's corresponding threaded hole and counter rotate the fastener to the tightening direction a few degrees until you feel the threads "jump", that indicates the threads are aligned to start in sync. | ||
* **Tighten (to snug) all of the bolts the same** way around your piece in a cross pattern to ensure evenness throughout. | * **Tighten (to snug) all of the bolts the same** way around your piece in a cross pattern to ensure evenness throughout. |