
Using a 105 in. lb. dial torque wrench and crowsfoot to torque a connector jam nut
Requirement is to torque to 105 in. lbs.
See the attached photo
Problem is that if we then use the same torque wrench and a socket to verify the torque - the nut moves at 25 in. lbs. on the dial.
I am trying to explain why this is.
Can anyone answer as to why torqueing using a crowsfoot does not achieve the proper torque
I believe it is because of the geometry of the setup
You are measuring torque at point A in photo because that is where the torque wrench attaches
Twisting at point A is not going to generate enough force on the 2.3 inch Radius
to torque the nut centered on point B to 105 in. lbs
This is in conflict with all the torque training and torque documentation that I know of.
Anyone able to help explain this
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