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06-04-2012, 07:10 PM
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Join Date: Mar 2008
Location: Boone, IA
Posts: 145
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I recycled a couple retired disk blades out of the iron pile with an 18" section of 2.5 x 2.5 x .25" angle and 2-3" muffler clamps welded together.
Makes jacking the mains a quick, simple job.

__________________
Kelley Kokemiller
9A sb N94KK 400hrs. and counting
Barrett O-320
Catto 3-blade
Panther tail complete
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06-09-2012, 09:40 AM
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Join Date: Aug 2007
Location: Tullahoma, Tennessee
Posts: 197
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I like your design with the welded angle. I have a RV3 and was wondering
if having just one jack would be sufficent and just jack up one side at a
time for tire, bearing, and brake work?
Thanks
Jim Miller
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06-09-2012, 11:44 AM
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Join Date: Mar 2007
Location: McKinney, TX
Posts: 1,261
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Why offset
Quote:
Originally Posted by Kokemiller
I recycled a couple retired disk blades out of the iron pile with an 18" section of 2.5 x 2.5 x .25" angle and 2-3" muffler clamps welded together.
Makes jacking the mains a quick, simple job.

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I like the simplicity, curious why you mounted it on the disk offset from center? It my just be an illusion, details one would like if they plan to copy your design 
__________________
Mike "Nemo" Elliott
RV-8A (First Flight 12-12-12!)
KOCF
N800ME
www.mykitlog.com/rvg8tor
Dues Paid 2019
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06-09-2012, 05:51 PM
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Join Date: Jan 2005
Posts: 3,646
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My modification/contribution to the design
One way to address the concern about the struts slipping out of the band clamp is to just rivet the struts to the clamp using an AN426AD4 rivet. (I found this solid band clamp at my local irrigation supply store, but I suspect most well-stocked hardware stores would carry something similar.)
Thanks Stephen for the original idea. Under $50 for everything!
__________________
Steve M.
Ellensburg WA
RV-9 Flying, 0-320, Catto
Donation reminder: Jan. 2021
Last edited by alpinelakespilot2000 : 06-09-2012 at 05:59 PM.
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06-09-2012, 06:33 PM
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Join Date: Mar 2008
Location: Boone, IA
Posts: 145
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The angle is welded offset so the jack is centered.
One jack will work just fine, just be careful of side loads as the weight is shifted to the opposite wheel.
I had someone ask me if I have any extra blades so they could make one like it (he said he didn't have any disk blades laying around for some strange reason). I do have a bunch but they are heavy, dirty and 23" in diameter. I will be more than happy to give them to any one that wants to pick them up at BNW. Might be a good reason to come to RV day on 6/16.
__________________
Kelley Kokemiller
9A sb N94KK 400hrs. and counting
Barrett O-320
Catto 3-blade
Panther tail complete
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06-10-2012, 04:49 AM
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Join Date: Jan 2009
Location: Hobe Sound, Florida
Posts: 292
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Jacks leak
Be careful. The jacks from harbor freight will leak over time. We were on jacks for a month getting some gear work done and placed saw horses longitudinally across thebfront and back wing spars. The leaknis not great but we needed a coupl of pumps each day. The jacks are a home run
Phelps
__________________
Kevin Phelps
Paid thru Dec 2020
RV-7A flying N782WP
Stuart, Fl
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06-10-2012, 06:38 AM
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Join Date: Jan 2005
Location: Kansas
Posts: 384
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There are some great ideas here, but I question using hose clamps to secure the braces that I see in some of the pictures. Would it not be safer to use something like a muffler clamp?
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06-12-2012, 05:50 AM
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Join Date: Aug 2007
Location: Tullahoma, Tennessee
Posts: 197
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When I saw this thread I rushed off to HF to buy jack and now have the
project done except for painting. I used ideas from the posted designs and
added my some of my own. I will try to post a photo later and may need
some help.
Thanks
Jim Miller PS: This jack may be a little tall for my RV3 and may require that
I cut off the two inches of jack ram that extends above jack when fully
retracted. Anyone out there using this jack on a RV3?
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06-12-2012, 08:24 AM
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Join Date: Oct 2007
Location: In New Braunfels, ist das Leben schön!
Posts: 871
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This picture of a punctured Falco always reminds me to make sure the attachment point on the jack is well secured.

__________________
Larry New
RV-7A - Built, flying 900+ hrs
RV-10 - Built, flying 2.9 hrs
??? - RV-12, Subsonex
48 States in 7 Days!
VAF Paid - Annual Autodraft
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06-12-2012, 03:13 PM
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Join Date: Aug 2007
Location: Tullahoma, Tennessee
Posts: 197
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I am going to try to post photo of just complete wing jack. It is
welded from 1 3/8 sq tube and a piece of 3 inch c-channel. Note the
muffler clamps threaded thru 1/2 holes requiring no welding and easy
replacement. Paint is John Deere green from Lowe's. 
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