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Kolb Axle Jack

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Thom Riddle

Joined: 10 Jan 2006
Posts: 1597
Location: Buffalo, NY, USA (9G0)

Posted: Sat Jul 09, 2011 6:21 am Post subject: Kolb Axle Jack

Fellow Kolbers,



A few months ago, the check valve in my cheap hydraulic jack failed so I put my thinking cap on and designed a cheap, light-weight (even portable for field repairs) quick to use axle jack for Kolbs or other aircraft with axles that extend away from the  wheel a bit. I've attached an image of the drawing/sketch that show the working dimensions. If anyone is interested in more details, I'll be happy to provide them, including the build dimensions and materials I used. I plan to make a short video of it in operation on my Slingshot and post that too.

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Kolb Axle Jack.tif

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Thom Riddle
Buffalo, NY (9G0)

Don't worry about old age... it doesn't last very long.
- Anonymous

David d.

Joined: 04 Jul 2011
Posts: 60
Location: Fitzgerald Ga.

Posted: Sat Jul 09, 2011 4:34 pm Post subject: Re: Kolb Axle Jack

Thom,

I have nothing on your post that will open to show a sketch.  It may be my computer or browser (firefox).

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Thom Riddle

Joined: 10 Jan 2006
Posts: 1597
Location: Buffalo, NY, USA (9G0)

Posted: Sat Jul 09, 2011 4:45 pm Post subject: Re: Kolb Axle Jack

ss568,



go to the KOLB Forum website and you should be able to see it there. it is a .tif file type.

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Thom Riddle
Buffalo, NY (9G0)

Don't worry about old age... it doesn't last very long.
- Anonymous

George Alexander

Joined: 10 Jan 2006
Posts: 245
Location: SW Florida

Posted: Sat Jul 09, 2011 4:51 pm Post subject: Re: Kolb Axle Jack

 	  Thom Riddle wrote: 	
		  ss568,



go to the KOLB Forum website and you should be able to see it there. it is a .tif file type. 	




For those who can't open a tif file, attached is a jpg version.

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kolb_axle_jack_177[2] (Small).jpg

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George Alexander
FS II R503
E-LSA N709FS
http://www.oh2fly.net

Thom Riddle

Joined: 10 Jan 2006
Posts: 1597
Location: Buffalo, NY, USA (9G0)

Posted: Sat Jul 09, 2011 5:09 pm Post subject: Re: Kolb Axle Jack

Thanks , George. I thought about posting it as jpg but it was another step and assumed all browsers could display tif files. Assumptions frequently are false.

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Thom Riddle
Buffalo, NY (9G0)

Don't worry about old age... it doesn't last very long.
- Anonymous

slyck(at)frontiernet.net
Guest

Posted: Sat Jul 09, 2011 5:16 pm Post subject: Kolb Axle Jack

why not invent a twofer gadget:   does both an axle and lifts the tailwheel.

BB



On 9, Jul 2011, at 8:51 PM, George Alexander wrote:



 	  Quote: 	
		   

 

 

 Thom Riddle wrote:

> ss568,

> 

> go to the KOLB Forum website and you should be able to see it there. it is a .tif file type.

 

 

 For those who can't open a tif file, attached is a jpg version.

 

 --------

 George Alexander

 FS II R503  N709FS

 http://www.oh2fly.net

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=345664#345664

 

 

 

 

 Attachments: 

 

 http://forums.matronics.com//files/kolb_axle_jack_1772_small_162.jpg

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Thom Riddle

Joined: 10 Jan 2006
Posts: 1597
Location: Buffalo, NY, USA (9G0)

Posted: Sun Jul 10, 2011 12:13 pm Post subject: Re: Kolb Axle Jack

BB,



The need or a "twofer" has not yet arisen in my hangar so I've not rigged one .



Just before flying out to your place this morning, BB, I made a short video of the axle jack at work. Note the little triangular piece I cut off of the 2x8 corner is used as a security chock, if leaving the jacked airplane for awhile with the wheel off. The over center is enough to keep it locked in place, unless someone gives the Kolb a big push. This little triangular piece prevents it from coming back over center and falling, even if someone tried to knock it off the jack.



To jack higher or a Kolb with larger diameter tires, just place a 2x6 under the jack and it will raise the axle another 1.5" higher. I used the handle from my dysfunctional hydraulic jack but one could use a hardwood dowel. 



I know this is simple and nobody asked for this but I've found it to be quite useful. Worth what you paid for it, as at least one Kolber often sez.



Video Link:

http://www.youtube.com/user/thomriddle?feature=mhee



You will notice in the video that the 3" dia. wheels on the jack do not roll much. This is because the asphalt surface  in my hangar is very rough and not much better than course gravel stuck together with a little tar.

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Thom Riddle
Buffalo, NY (9G0)

Don't worry about old age... it doesn't last very long.
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