Differences

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--- techtalk:ref:tools025 [2020/05/23 23:57]
hippysmack [Torque Wrench Maintenance]
+++ techtalk:ref:tools025 [2022/09/09 20:48]
hippysmack [Torque Wrench Care and Usage, Related Charts and Information]
@@ Line 5: / Line 5: @@
 ====== Torque Wrench Care and Usage, Related Charts and Information ======
+{{:techtalk:ref:tools:torque_wrench_gif_by_hippysmack.gif?direct|}} ((animation by Hippysmack)) \\
 \\
@@ Line 65: / Line 67: @@
 Related videos:
   * [[https://www.youtube.com/watch?v=DQdOgW0Vl5Y|Clicker type torque wrench repair]] (includes disassembly)
 ====== Torque Wrench and Accuracy ======
@@ Line 346: / Line 349: @@
 If you turn the crows foot at a 90° angle, there is no increase in torque to the fastener from the preset scale. \\
-{{:techtalk:ref:tools:torque_with_a_crows_foot.jpg?direct&300|}} ((photo by Hippysmack)) \\
+{{:techtalk:ref:tools:torque_with_a_crows_foot_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) \\
@@ Line 355: / Line 358: @@
 The invent of the clicker type torque wrench took the focus away from 'feeling' what you are doing while tightening. \\
 Try and develop a 'feel' for when enough is enough especially if using a clicker type wrench. \\
-If the wrench fails to click, and many of them do on the low end of their scale, you can break something simply waiting for the click. \\
+If the wrench fails to click, and many of them do on the low end of their scale especially, you can break something simply waiting for the click. \\
 ====== Clamp Force ======
@@ Line 385: / Line 388: @@
     * Sometimes (snug up to “firm plus a little more”) ((IronMick)) goes a long way.
+One of these bolts was broken off in a rocker box. The others were damaged but not broken. \\
+These bolts were damaged due to a clicker wrench not operating properly. \\
+The person using the torque wrench felt it happening yet kept pulling awaiting the click. \\
+"I did notice before it snapped that it kind of spun for a second, then broke. One of the other bolts did the same thing and I stopped immediately." ((JeeperJay of the XLFORUM http://xlforum.net/forums/showthread.php?t=1210515&highlight=rocker+box+bolts&page=2)) \\
+Any time you have any amount of thread damage or bolt stretch, replace the bolts. \\
+\\
+{{:techtalk:ref:tools:broken_bolts_by_jeeperjay.jpeg?direct&300|}} ((photo by JeeperJay of the XLFORUM http://xlforum.net/forums/showthread.php?t=1210515&highlight=rocker+box+bolts&page=2)) \\
 ====== Torque Range ======
@@ Line 473: / Line 483: @@
   * These are only generalized specs that do not take into account the difference in steel and aluminum threading. See your FSM or instruction manual for specific torque values per application.
+|  **Steel Fasteners**  |||||||||||
 ^Size/Grade^1/4"^5/16"^3/8"^7/16"^1/2"^9/16"^5/8"^3/4"^7/8"^1"^
 |SAE 2|6|12|20|32|47|69|96|155|206|310((Clymer 2004-2013 HD Sportster Repair Manual))|
@@ Line 478: / Line 489: @@
 |SAE 7|13|25|44|71|110|154|215|360|570|840((Clymer 2004-2013 HD Sportster Repair Manual))|
 |SAE 8|14|29|47|78|119|169|230|380|600|700((Clymer 2004-2013 HD Sportster Repair Manual))|
+\\
+**The following torque values (from engineersedge.com) are suggested maximums based upon actual lab testing on clean and dry or near dry fasteners**. ((https://www.engineersedge.com/material_science/torque_values_stainless_steel_13353.htm)) \\
+For other friction conditions, significant modifications may be required. \\
+The following chart is a reprint from this site. \\
+|  **Torque Values for Stainless Steel and Nonferrous Fasteners (inch series)**  |||||||
+^Bolt Size^18-8 Stainless Steel \\ Torque in-lbs^316 Stainless Steel \\ Torque in-lbs^Silicon Bronze \\ Torque in-lbs^Monel \\ Torque in-lbs^Brass \\ Torque in-lbs^2024-T4 Aluminum \\ Torque in-lbs^
+|4-40|5.2|5.5|4.8|5.3|4.3|2.9|
+|4-48|6.6|6.9|6.1|6.7|5.4|3.6|
+|5-40|7.7|8.1|7.1|7.8|6.3|4.2|
+|5-44|9.4|9.8|8.7|9.6|7.7|5.1|
+|6-32|9.6|10.1|8.9|9.8|7.9|5.3|
+|6-40|12.1|12.7|11.2|12.3|9.9|6.6|
+|8-32|19.8|20.7|18.4|20.2|16.2|10.8|
+|8-36|22|23|20.4|22.4|18.0|12.0|
+|10-24|22.8|23.8|21.2|25.9|18.6|13.8|
+|10-32|31.7|33.1|29.3|34.9|25.9|19.2|
+|1/4-20|75.2|78.8|68.8|85.3|61.5|45.6|
+|1/4-28|94|99|87|106|77|57|
+|5/16-18|132|138|123|149|107|80|
+|5/16-24|142|147|131|160|116|86|
+|3/8-16|236|247|219|266|192|143|
+|3/8-24|259|271|240|294|212|157|
+|7/16-14|376|393|349|427|317|228|
+|7/16-20|400|418|371|451|327|242|
+^Bolt Size^18-8 Stainless Steel \\ Torque ft-lbs^316 Stainless Steel \\ Torque ft-lbs^Silicon Bronze \\ Torque ft-lbs^Monel \\ Torque ft-lbs^Brass \\ Torque ft-lbs^2024-T4 Aluminum \\ Torque ft-lbs^
+|1/2-13|43|45|40|48.7|35.2|26|
+|1/2-20|45|47|42|51|37|27|
+|9/16-12|56|59|53|65|47|34|
+|9/16-18|62|65|58|71|51|38|
+|5/8-11|92|96|86|111|76|60|
+|5/8-18|103|108|96|123|85|67|
+|3/4-10|127|131|118|153|104|82|
+|3/4-16|124|129|115|149|102|80|
+|7/8-9|194|202|178|231|159|124|
+|7/8-14|193|201|177|230|158|124|
+|1 - 8|286|299|265|344|235|184|
+|1 - 14|259|270|240|311|212|166|
 ===== Wet Torque Value Chart for Lubed Threads From Allied Systems =====

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