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switch destruction

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raymondj(at)frontiernet.n
Guest

Posted: Thu Nov 17, 2011 1:03 am Post subject: switch destruction

Greetings,



Just a quick note to help folks avoid the error I made.  I was mounting 

a toggle switch through a hole and needed the full length of the threads 

to accommodate the thickness and a weather proof cover.  End of the 

story, I overtightened the nut and about the 3rd time I flipped the 

switch the entire threaded portion of the switch pulled up out of the 

hole and into my hand leaving the body hanging by the wires.  Seems 

obvious in hind site, but I didn't give it a thought as I tightened the nut.



do not archive

-- 

Raymond Julian

Kettle River, MN



"And you know that I could have me a million more friends,

and all I'd have to lose is my point of view." - John Prine

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nuckolls.bob(at)aeroelect
Guest

Posted: Thu Nov 17, 2011 2:26 pm Post subject: switch destruction

At 03:00 AM 11/17/2011, you wrote:




Greetings,



Just a quick note to help folks avoid the error I made.  I was 

mounting a toggle switch through a hole and needed the full length of 

the threads to accommodate the thickness and a weather proof 

cover.  End of the story, I overtightened the nut and about the 3rd 

time I flipped the switch the entire threaded portion of the switch 

pulled up out of the hole and into my hand leaving the body hanging 

by the wires.  Seems obvious in hind site, but I didn't give it a 

thought as I tightened the nut.



   OOPS! Thanks for sharing and reminding me. I don't think

   I've mentioned it in any of my writings about toggle switches.

   But you've gathered a lesson that will stay with you the

   rest of your life. I got that lesson many moons ago myself!



   Yes, toggle switches (and other devices with long

   threaded bushings) should be mounted with TWO

   nuts so that make up forces are not transferred to

   the switch body. I'll get that admonition added to the

   next update to the 'Connection. Thanks again!

   Bob . . .

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