Differences

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

--- techtalk:ref:tools025 [2020/05/23 23:02]
hippysmack [Using a Torque Wrench]
+++ 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 62: / Line 64: @@
 {{:techtalk:ref:tools:torque_wrench_maintenance_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) {{:techtalk:ref:tools:torque_wrench_maintenance_2_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) \\
+Related videos:
+  * [[https://www.youtube.com/watch?v=DQdOgW0Vl5Y|Clicker type torque wrench repair]] (includes disassembly)
 ====== Torque Wrench and Accuracy ======
@@ Line 178: / Line 183: @@
     * The drive end doesn't know when to click. It is pre-calculated force from the handle working to build force at the drive end. \\ Pulling from the nut on the end adds more length but creates the same force on the drive end (fooling the wrench to click prematurely).
     * You can also turn the nut by accident which will change the wrench calibration throughout it's torque scale.
+  * **Always slowly pull (never push on the handle) the tool toward you in a clockwise manner.**.
+    * You lose control of the torque applied when you push on the handle.
+    * If the wrench slips off the bolt/nut, busted knuckles or worse injury to follow.
   * **Hand placement and the angle of the wrench is important**.
     * It's common practice to cup the end of the tool with one hand and use a slight pressure against and centered to the bolt/nut. \\ Then move the wrench handle with the other hand at 90° from the fastener.
@@ Line 203: / Line 211: @@
     * There is no reason to re-torque heads. If you made it to final torque and everything went Ok, you can do more harm than good on re-torque.
     * At this point, your mainly insuring that you didn't miss a bolt when making the rounds. It's better to know now rather when your on the road.
+**Wrench type specifics**:
+  * Beam wrench:
+    * As you pull tighter, you will notice the handle bend slightly. \\ This calibrated bending is the result of applied torque. Watch the end of the needle located just above the handle. \\ As the beam bends, the needle points to the amount of torque being applied.
+    * Continue to turn the fastener, and allow the handle to rotate so that the pivot is the only thing contacting the beam. \\ Some handles have a pivot piece that you actually are holding. \\ Arrange it so the handle 'floats' with you instead of cocking sideways against the bending beam.
+    * Keep your eyes looking straight at the center bar end and the torque scale. \\ It's hard to impossible to judge when the pointer is on the right value looking from the side.
 {{:techtalk:ref:tools:general_torque_sequence_drawing_by_hippysmack.png?direct&300|}} ((drawing by Hippysmack)) {{:techtalk:ref:tools:torque_wrench_-_proper_hand_placement_by_hippysmack.jpg?direct&300|}} ((drawing by Hippysmack)) \\
@@ Line 334: / 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 343: / 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 373: / 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 461: / 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 466: / 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 =====

Trace:

Differences

Navigation

Search

Toolbox