Torque Wrench Calibration

Jerry Wass wrote:
Bill wrote:
Make it so that you can pull the torsion bar wrench with the snap on--
against each other. They should read the same.

How could the torsion wrench be off if it zeros properly and nothing
in the ponter binds?

Bill Hale Loveland CO

You are correct for a bending rod type wrench--but some torque wrenches
have a spring loaded(adjustable)hollow handle that allows a piece to pop
out of a Vee notch making an audible click that is also felt in the
handle--(very handy for torquing where you can't see the dial or
pointer. Jerry


In the Air Farce we were supposed to click the break type torque
wrench three times at the lowest setting before using it. This was
supposed to spread the lubrication inside.

I like the idea of taking the wrench to a shop to check calibration.
Having said that, in my first shop in the USAF we calibrated torque
wrenches so I may be a tad biased. The machine we used was huge and
probably weighed close to a ton. Torque wrenches in the USAF are
periodically calibrated, I forget the cycle, and taken in for
calibration if dropped or abused.

I wonder if the electronic torque wrenches are worth the money. Has
anyone in RAH tried them?

Dan, U.S. Air Force, retired

"Dan" wrote in message
...
Jerry Wass wrote:
Bill wrote:
Make it so that you can pull the torsion bar wrench with the snap on--
against each other. They should read the same.

How could the torsion wrench be off if it zeros properly and nothing
in the ponter binds?

Bill Hale Loveland CO

You are correct for a bending rod type wrench--but some torque wrenches
have a spring loaded(adjustable)hollow handle that allows a piece to pop
out of a Vee notch making an audible click that is also felt in the
handle--(very handy for torquing where you can't see the dial or pointer.
Jerry


In the Air Farce we were supposed to click the break type torque wrench
three times at the lowest setting before using it. This was supposed to
spread the lubrication inside.

I like the idea of taking the wrench to a shop to check calibration.
Having said that, in my first shop in the USAF we calibrated torque
wrenches so I may be a tad biased. The machine we used was huge and
probably weighed close to a ton. Torque wrenches in the USAF are
periodically calibrated, I forget the cycle, and taken in for calibration
if dropped or abused.

I wonder if the electronic torque wrenches are worth the money. Has
anyone in RAH tried them?

Dan, U.S. Air Force, retired

I have not tried the electronic variety; but my recollection is that the
click type torque wrenches were supposed to be calibrated annualy--so long
as no incident occured, such as dropping or other abuse.

Peter

snip
In the Air Farce we were supposed to click the break type torque wrench
three times at the lowest setting before using it. This was supposed to
spread the lubrication inside.

I like the idea of taking the wrench to a shop to check calibration.
Having said that, in my first shop in the USAF we calibrated torque
wrenches so I may be a tad biased. The machine we used was huge and
probably weighed close to a ton. Torque wrenches in the USAF are
periodically calibrated, I forget the cycle, and taken in for calibration
if dropped or abused.
snip
Dan, U.S. Air Force, retired

Heck, Dan, in the Air Force there was an alternate torque measuring
system that didn't even require a torque wrench. (PMEL calibrated, of
course)
Simply "strip" it and back off one half turn. Farm boys from Georgia taught
me that.

Old Chief Lynn

coffelt2 wrote:
snip
In the Air Farce we were supposed to click the break type torque
wrench three times at the lowest setting before using it. This was
supposed to spread the lubrication inside.

I like the idea of taking the wrench to a shop to check calibration.
Having said that, in my first shop in the USAF we calibrated torque
wrenches so I may be a tad biased. The machine we used was huge and
probably weighed close to a ton. Torque wrenches in the USAF are
periodically calibrated, I forget the cycle, and taken in for
calibration if dropped or abused.
snip
Dan, U.S. Air Force, retired

Heck, Dan, in the Air Force there was an alternate torque measuring
system that didn't even require a torque wrench. (PMEL calibrated, of
course)
Simply "strip" it and back off one half turn. Farm boys from Georgia taught
me that.

Old Chief Lynn

We used the "tighten it until it breaks, then back off a half turn"
and the "finger tight, plus a quarter turn" methods. QC wasn't fond of
the response "two clicks of the left elbow" when we were asked what the
proper torque was. Wasn't the -2 T.O. series issued to sit on or to
protect ones knees on a B-4 stand? Not that I ever did that, you
understand, but there was talk.

Dan, U.S. Air Force, retired

"Dan" wrote in message
...
coffelt2 wrote:
snip
In the Air Farce we were supposed to click the break type torque
wrench three times at the lowest setting before using it. This was
supposed to spread the lubrication inside.

I like the idea of taking the wrench to a shop to check calibration.
Having said that, in my first shop in the USAF we calibrated torque
wrenches so I may be a tad biased. The machine we used was huge and
probably weighed close to a ton. Torque wrenches in the USAF are
periodically calibrated, I forget the cycle, and taken in for
calibration if dropped or abused.
snip
Dan, U.S. Air Force, retired

Heck, Dan, in the Air Force there was an alternate torque measuring
system that didn't even require a torque wrench. (PMEL calibrated, of
course)
Simply "strip" it and back off one half turn. Farm boys from Georgia
taught
me that.

Old Chief Lynn

We used the "tighten it until it breaks, then back off a half turn" and
the "finger tight, plus a quarter turn" methods. QC wasn't fond of the
response "two clicks of the left elbow" when we were asked what the proper
torque was. Wasn't the -2 T.O. series issued to sit on or to protect ones
knees on a B-4 stand? Not that I ever did that, you understand, but there
was talk.

Dan, U.S. Air Force, retired

Oh, yeah! Been retired for more than 30 years, and knees still have
the B-4 stand grate imprint. Never realized the -2 was so versatile!

Old Chief Lynn

coffelt2 wrote:

"Dan" wrote in message
...
coffelt2 wrote:
snip
In the Air Farce we were supposed to click the break type torque
wrench three times at the lowest setting before using it. This was
supposed to spread the lubrication inside.

I like the idea of taking the wrench to a shop to check
calibration. Having said that, in my first shop in the USAF we
calibrated torque wrenches so I may be a tad biased. The machine we
used was huge and probably weighed close to a ton. Torque wrenches
in the USAF are periodically calibrated, I forget the cycle, and
taken in for calibration if dropped or abused.
snip
Dan, U.S. Air Force, retired

Heck, Dan, in the Air Force there was an alternate torque measuring
system that didn't even require a torque wrench. (PMEL calibrated, of
course)
Simply "strip" it and back off one half turn. Farm boys from Georgia
taught
me that.

Old Chief Lynn

We used the "tighten it until it breaks, then back off a half turn"
and the "finger tight, plus a quarter turn" methods. QC wasn't fond of
the response "two clicks of the left elbow" when we were asked what
the proper torque was. Wasn't the -2 T.O. series issued to sit on or
to protect ones knees on a B-4 stand? Not that I ever did that, you
understand, but there was talk.

Dan, U.S. Air Force, retired

Oh, yeah! Been retired for more than 30 years, and knees still have
the B-4 stand grate imprint. Never realized the -2 was so versatile!

Old Chief Lynn

Checklists were also great on grates. Pity they weren't good for
protection from joining the KC-135 waffle head club, I joined in 1975.

Dan, U.S. Air Force, retired

"coffelt2" wrote in message
...
snip
In the Air Farce we were supposed to click the break type torque wrench
three times at the lowest setting before using it. This was supposed to
spread the lubrication inside.

I like the idea of taking the wrench to a shop to check calibration.
Having said that, in my first shop in the USAF we calibrated torque
wrenches so I may be a tad biased. The machine we used was huge and
probably weighed close to a ton. Torque wrenches in the USAF are
periodically calibrated, I forget the cycle, and taken in for calibration
if dropped or abused.
snip
Dan, U.S. Air Force, retired

Heck, Dan, in the Air Force there was an alternate torque measuring
system that didn't even require a torque wrench. (PMEL calibrated, of
course)
Simply "strip" it and back off one half turn. Farm boys from Georgia
taught
me that.

Old Chief Lynn

Hey don't forget the proper torque on the propellor retaining nut on the
4360 was "All you can with both hands on the Cheater Bar, then a 1/4 turn
more". Note proper Cheater Bar was 6' long.

Stu Fields B-36 engine change crew.

On Jun 29, 9:53*pm, "coffelt2" wrote:
snip

* In the Air Farce we were supposed to click the break type torque wrench
three times at the lowest setting before using it. This was supposed to
spread the lubrication inside.

* I like the idea of taking the wrench to a shop to check calibration..
Having said that, in my first shop in the USAF we calibrated torque
wrenches so I may be a tad biased. The machine we used was huge and
probably weighed close to a ton. Torque wrenches in the USAF are
periodically calibrated, I forget the cycle, and taken in for calibration
if dropped or abused.
snip
Dan, U.S. Air Force, retired

* * *Heck, Dan, in the Air Force there was an alternate torque measuring
system that didn't even require a torque wrench. (PMEL calibrated, of
course)
Simply "strip" it and back off one half turn. Farm boys from Georgia taught
me that.

Old Chief Lynn

Yeah, but ya gotta know the difference between metric and SAE torque.

SAE = 1 3/4 grunts
Metric = Gutentieght

bildan wrote:
On Jun 29, 9:53 pm, "coffelt2" wrote:
snip

In the Air Farce we were supposed to click the break type torque wrench
three times at the lowest setting before using it. This was supposed to
spread the lubrication inside.
I like the idea of taking the wrench to a shop to check calibration.
Having said that, in my first shop in the USAF we calibrated torque
wrenches so I may be a tad biased. The machine we used was huge and
probably weighed close to a ton. Torque wrenches in the USAF are
periodically calibrated, I forget the cycle, and taken in for calibration
if dropped or abused.
snip
Dan, U.S. Air Force, retired
Heck, Dan, in the Air Force there was an alternate torque measuring
system that didn't even require a torque wrench. (PMEL calibrated, of
course)
Simply "strip" it and back off one half turn. Farm boys from Georgia taught
me that.

Old Chief Lynn

Yeah, but ya gotta know the difference between metric and SAE torque.

SAE = 1 3/4 grunts
Metric = Gutentieght


Good'n'tight is GI German for good day. Peter strain or I'll be the
same are GI German for goodbye.

Not that I would know anything about that stuff there.

Dan, U.S. Air Force, retired

"Dan" wrote in message
...
bildan wrote:
On Jun 29, 9:53 pm, "coffelt2" wrote:
snip

In the Air Farce we were supposed to click the break type torque
wrench
three times at the lowest setting before using it. This was supposed to
spread the lubrication inside.
I like the idea of taking the wrench to a shop to check calibration.
Having said that, in my first shop in the USAF we calibrated torque
wrenches so I may be a tad biased. The machine we used was huge and
probably weighed close to a ton. Torque wrenches in the USAF are
periodically calibrated, I forget the cycle, and taken in for
calibration
if dropped or abused.
snip
Dan, U.S. Air Force, retired
Heck, Dan, in the Air Force there was an alternate torque measuring
system that didn't even require a torque wrench. (PMEL calibrated, of
course)
Simply "strip" it and back off one half turn. Farm boys from Georgia
taught
me that.

Old Chief Lynn

Yeah, but ya gotta know the difference between metric and SAE torque.

SAE = 1 3/4 grunts
Metric = Gutentieght


Good'n'tight is GI German for good day. Peter strain or I'll be the same
are GI German for goodbye.

Not that I would know anything about that stuff there.


I beg to differ. Good'n'tight is German for virgin.