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dthomas773(at)sbcglobal.n
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 Posted: Fri Jun 05, 2009 4:40 pm Post subject: ROD END BEARING JAM NUT - Torque |
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What works well for this is a ratchet end wrench.
I wouldn't worry too much about torque torque value. If really concerned you could play with a same size nut in another location with a torque and regular wrench to get the feel of what the torque feels like.
Dennis Thomas
From: Garey Wittich <gareywittich2000(at)yahoo.com>
To: rv-list(at)matronics.com
Sent: Friday, June 5, 2009 10:26:16 AM
Subject: RV9-List: ROD END BEARING JAM NUT - Torque
For you Experts:
Installed the Rod End Bearings in the Rudder and Elevator today. My local A & P said to tighten the Jam Nut by "Hand Tightening" the Jam Nut as far as it will go, then turn the nut between 1/4 and 1/2 turn more.
I "hand tightened" the Jam Nut (as the A & P said), but could not get it to tighten more than an additional 1/8 turn, Because the Jam Nut is recessed (in the Spar channel), it is impossible to get a wrench "squarely" on it = any further tightening of the Nut starts to round the corners of the Nut. Is this 1/8 turn adequate for the Jam Nut tightness, if NOT how do you turn the Nut (since it is recessed) ????
What Torque Value is required for the Jam Nut, assuming a Torque Wrench can get into the recessed area - do not see how this can be done.
ANOTHER QUESTION -
Have a "Click Type" torque wrench that starts at 20 in-lbs. From previous posts, the FIRST 1/6 and the LAST 1/6 of the Wrench's scale are inaccurate. So how do you measure "LOW VALUES" for an AN3 Nut that requires 20 - 25 in/lbs plus Friction Torque of approx 5 in/lbs = 25 to 30 on/lbs TOTAL torque ??
Appreciate your help,
Garey Santa Monica, CA
[quote][b]
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ianxbrown
Joined: 16 May 2009
Posts: 80
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| Posted: Fri Jun 05, 2009 7:20 pm Post subject: ROD END BEARING JAM NUT - Torque |
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Not sure if a ratchet end wrench is the same thing but a crows foot
wrench works too. I'd agree about the guesstimating by trying the feel
elsewhere. The rod end bearing is not going to go anywhere anyway!
Ian Brown
On Fri, 2009-06-05 at 17:39 -0700, Dennis Thomas wrote:
| Quote: | What works well for this is a ratchet end wrench.
I wouldn't worry too much about torque torque value. If really
concerned you could play with a same size nut in another location
with a torque and regular wrench to get the feel of what the torque
feels like.
Dennis Thomas
______________________________________________________________________
From: Garey Wittich <gareywittich2000(at)yahoo.com>
To: rv-list(at)matronics.com
Sent: Friday, June 5, 2009 10:26:16 AM
Subject: ROD END BEARING JAM NUT - Torque
For you Experts:
Installed the Rod End Bearings in the Rudder and Elevator today. My
local A & P said to tighten the Jam Nut by "Hand Tightening" the Jam
Nut as far as it will go, then turn the nut between 1/4 and 1/2 turn
more.
I "hand tightened" the Jam Nut (as the A & P said), but could not get
it to tighten more than an additional 1/8 turn, Because the Jam Nut
is recessed (in the Spar channel), it is impossible to get a wrench
"squarely" on it = any further tightening of the Nut starts to round
the corners of the Nut. Is this 1/8 turn adequate for the Jam Nut
tightness, if NOT how do you turn the Nut (since it is recessed) ????
What Torque Value is required for the Jam Nut, assuming a Torque
Wrench can get into the recessed area - do not see how this can be
done.
ANOTHER QUESTION -
Have a "Click Type" torque wrench that starts at 20 in-lbs. From
previous posts, the FIRST 1/6 and the LAST 1/6 of the Wrench's scale
are inaccurate. So how do you measure "LOW VALUES" for an AN3 Nut
that requires 20 - 25 in/lbs plus Friction Torque of approx 5 in/lbs =
25 to 30 on/lbs TOTAL torque ??
Appreciate your help,
Garey Santa Monica, CA
http://foru===
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| | - The Matronics RV9-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV9-List |
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