On Mar 22, 10:25 am, dpb wrote:
wrote:
i dont like torsion springs if something breaks thet are a real
hazard, regular extension springs with safety cables are my
preference. and if the system has a problem its a DIY project

In what way are they any more of a safety hazard for the occasional
break? They're captured on the axle even more solidly than the
extension type w/ a cable is and in a location less likely to actually
have an end strike an individual than an extension spring if were to
break when the garage is occupied...

They can shatter and fling shrapnel. Less risk if the door is raised,
but if it's lowered and the spring is under maximum tension. (Maybe
they put them in a solid cage these days though, I don't know.)

The hazards of installing are overblown imo although do need to know
something about what one is doing (but there are many things for which
that is true).

I think they're most often "adjusted" while already under tension, and
that can be hazardous while not offering the inexperienced a very good
picture of the hazard, which I think is the basis of their reputation
for dangerousness. (Please don't ask how I know.)
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- gpsman