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Posted by on October 14, 2009, 7:52 am
> On Oct 13, 7:54=A0pm, cl...@snyder.on.ca wrote:
> > On Tue, 13 Oct 2009 22:15:40 -0400, "MiamiCuse"
> > >I am using no hub couplings to connect drain pipes and the couplings a=
re
> > >made of stainless steel clamps with a 3/8" hex head with specification=
s
> > >called for tightening to 80 pound-in.
> > >I have a torque wrench that will tighten to 60 pound-inch and then rel=
eases
> > >but not 80, and I don't want to pay a lot of money to for a 90 pound-i=
n
> > >torque wrench just to tighten 2 couplings and will not have a use for =
it
> > >ever. =A0Is there any trick anyone can think of that would allow me to=
tighen
> > >to that specification?
> > >Thanks,
> > >MC
> > Use an extention to increase the leverage between the click mechanism
> > and the screw head. Or use a pull scale on the end of a wrench and do
> > the calculations for length. 8 lbs on a 10 inch wrench would do it.
> > Besides, the torque is NOT terribly critical. I generally make them
> > "wrist tight" using a 3 inch ratchet or "pretty durn tight" with a
> > screwdriver.
> Yup.....
> 80 in-lbs is 6.5 ft-lbs
> or
> ~ 8 lbs on a 10" (like the size of a 1/2" drive ratchet)
> or
> ~15 lbs on a 3/8 drive ratchet
> not a lot of force
> or
> put your torque wrench in a vice and drive the socket end to it with a
> wrench or ratchet....."calibrate" your arm, hand, wrist to 60 in-lbs
> and add 1/3 of oyur 80 in-lbs
> cheers
> Bob- Hide quoted text -
> - Show quoted text -
I've never seen anyone actually using a torque wrench on these
couplings. You just tighten them up like most things, to be
reasonably tight, but not risk stripping them.
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>made of stainless steel clamps with a 3/8" hex head with specifications
>called for tightening to 80 pound-in.
>I have a torque wrench that will tighten to 60 pound-inch and then releases
>but not 80, and I don't want to pay a lot of money to for a 90 pound-in
>torque wrench just to tighten 2 couplings and will not have a use for it
>ever. Is there any trick anyone can think of that would allow me to tighen
>to that specification?
>Thanks,
>MC