"Jeff Wisnia" wrote in message
...
Steve W. wrote:
"Jeff Wisnia" wrote in message
...


snipped

And, if spring breakage on those kind of door springs wasn't a
fairly
regular happening, they wouldn't bother selling safety cable sets


The reason for the safety cables isn't just spring breakage but
breakage
of the door cables and the attachment points themselves.



Ouch! I was so obcessed with those damn loops stapping of at those
sharp
stress inducing bends, that I forgot about the rest of the components
under tension. Prolly because I never personally experienced any of
*them* breaking in a house we've lived in. it's always been those damn
end loops....those damn end loops...those damn.....(ad nauseum.)

That demostrates once again that two (or more) heads are better than
one.

Jeff

--
Jeffry Wisnia

(W1BSV + Brass Rat '57 EE)

"Truth exists; only falsehood has to be invented."

I've had the end connections pull out of a door one and had a couple of
failures at the pulley. Worst one was at the fire station. We have now
gone to rotary spring assist because of it. That one almost caused a BIG
problem because the cable failed when they were opening the door
en-route to a fire call. Cable just missed one FFs head but hit the
fender on the rig hard enough to crease it.



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