|
Re: Inexpensive torque wrench for power panel lugs?
To reinforce what Al said above:
Quote:
|
Originally Posted by Power Distribution Board data sheet
(from p. 7 of the data sheet) - The PD’s power input/battery shanks are Metric 6. A ¼” nut WILL strip these nuts. Use M6 nuts for the PD Shanks.
- The PD’s power input/battery shanks can shear if torqued more than 3.9 Nm. Do not over-tighten.
|
My team is lucky to have a sponsor that allows us to borrow this torque wrench. We treat it carefully and return it the next day.
Our torque target is 20 lbf-in. Any more just seems too close to the shear limit (3.9 Nm = 35 lbf-in) quoted above.
__________________
Richard Wallace
Mentor since 2011 for FRC 3620 Average Joes (St. Joseph, Michigan)
Mentor 2002-10 for FRC 931 Perpetual Chaos (St. Louis, Missouri)
 since 2003
I believe in intuition and inspiration. Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution. It is, strictly speaking, a real factor in scientific research.
(Cosmic Religion : With Other Opinions and Aphorisms (1931) by Albert Einstein, p. 97)
Last edited by Richard Wallace : 26-01-2012 at 12:19.
Reason: added torque target
|