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  #1  
Old 19-03-21, 21:28
m606paz m606paz is offline
Mariano Paz
 
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Default Four Ton Auto Specialties Jack and Handle

This the jack i found. Need restoration a reproduce parts missing.
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20210319_120715.jpg   20210319_120734.jpg   20210319_135637.jpg   20210319_135917.jpg   20210319_140129.jpg  

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  #2  
Old 19-03-21, 21:32
m606paz m606paz is offline
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The handle
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20210319_152732.jpg   20210319_152751.jpg   20210319_152803.jpg   20210319_152829.jpg   20210319_152816.jpg  

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  #3  
Old 19-03-21, 22:52
Jacques Reed Jacques Reed is offline
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Default Auto Specialties Jack Handle

Hi Mariano,

That is so good of you to make the drawing of the jack handle and post it here. No doubt others will be glad to have the dimensions and photos also. Thank you.

I will use them to make a reproduction for my smaller Auto Specialties jack used on the 15 CWT trucks.
I have just about given up ever finding an original handle for mine so this will do quite well.

Haven't taken mine apart but they seem pretty simple. What part is missing on yours?

Cheers,
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  #4  
Old 19-03-21, 23:16
m606paz m606paz is offline
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Hi Jacques!

I am pleased to share information with all of you.
I hope they can reproduce a lot of handles
The piece that seems to be missing is a cover that touches the main body and accompanies the mobile part. A kind of bushing that keeps everything in place without allowing both screws to rotate and act.
I don't know if you understand what I am describing .... I have a hard time using technical words.
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1944 Ariel W/NG
1945 FGT FAT
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  #5  
Old 20-03-21, 00:41
Jacques Reed Jacques Reed is offline
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Default 4 ton Auto Specialties jack

Hi Mariano,

Is the attached photo showing the part you are missing? I could not see a similar part in your photos. Not sure what it would be called myself.

Cheers,
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15 CWT jack AS.jpg  
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  #6  
Old 20-03-21, 01:08
m606paz m606paz is offline
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No Jacques. An intermediate tube is missing...
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20210319_200056.jpg   15 CWT jack AS.jpg  
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1944 Ariel W/NG
1945 FGT FAT

Last edited by m606paz; 20-03-21 at 01:19.
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  #7  
Old 20-03-21, 04:23
m606paz m606paz is offline
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And the upper part..... what is the name?
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15 CWT jack AS.jpg  
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1944 Ariel W/NG
1945 FGT FAT
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  #8  
Old 20-03-21, 10:13
Jacques Reed Jacques Reed is offline
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Quote:
Originally Posted by m606paz View Post
And the upper part..... what is the name?
Hi Mariano,

That part is usually referred to as a "Saddle".
It might be difficult to reproduce exactly as it looks to be a cast iron/steel part or perhaps a forging. No doubt some clever fabrication would make a good substitute in any case.

Cheers,
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  #9  
Old 20-03-21, 17:19
m606paz m606paz is offline
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Hi Jacques, thank you, this saddle rotate 360°?
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  #10  
Old 20-03-21, 23:05
Jacques Reed Jacques Reed is offline
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Default Auto Specialties Jack- Saddle

Hi Mariano,

Yes it rotates 360 degrees.

The saddle on my smaller 15 CWT jack is 2" wide and 3" long. If the same saddle was used on both large and small jacks I can post a few close up photos and measurements to aid fabrication of a replacement.

Perhaps another MLU member can verify if the saddle on the 4 ton jack is the same size?

Cheers,
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  #11  
Old 21-03-21, 03:25
m606paz m606paz is offline
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Hi Jacques, thank you for your help.

Today I started to reproduce the missing tube. Take a tube of greater diameter and with a longitudinal cut reduce the diameter to the necessary measure. Then a bit of lathe to lower the tube to the necessary diameter since it was cylinder with blows and there was not a perfect circumference.

Next weekend I will continue with the restoration. It remains to have some guides so that the piece does not rotate, and the upper seat.
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20210320_104455.jpg   20210320_125448.jpg   20210320_130716.jpg   20210320_132036.jpg   20210320_182055.jpg  

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1944 Ariel W/NG
1945 FGT FAT
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  #12  
Old 21-03-21, 16:15
m606paz m606paz is offline
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Another post about this type of Jack
http://www.mapleleafup.net/forums/sh...d.php?p=268706
http://www.mapleleafup.net/forums/sh...d.php?p=250490
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1944 Ariel W/NG
1945 FGT FAT
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  #13  
Old 21-03-21, 22:41
m606paz m606paz is offline
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I have some questions to know how to advance in the construction of the saddle and the ring under the saddle.
Is the ring fixed to the tube that is under it or does it also rotate with the saddle?
If the ring is fixed, is it welded to the tube?
Thanks in advance
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AB53D8E7-BC7C-49E2-AF5B-6F55E983F04D.jpeg  
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1944 Ariel W/NG
1945 FGT FAT
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  #14  
Old 22-03-21, 05:42
Jacques Reed Jacques Reed is offline
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Default Auto Specialties jack- Saddle

Hi Mariano,

The saddle rotates in the upper tube. The tube does not turn.

There is a large round head rivet that holds the saddle to the tube. it is free to rotate also in the tube and the saddle. Without pulling mine apart I am not sure how the rivet is attached to the upper tube. The saddle rotates in that collar at the top of the tube. That is the ring you refer to in photo. It is part of the upper tube.

Again, I am only referring to the smaller jack but in the photos they seem the same at the saddle area for both size jacks.

Hope this helps.

Cheers,
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IMG_0242a.JPG  
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  #15  
Old 22-03-21, 14:01
m606paz m606paz is offline
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Thank you very much for your help Jacques!
Now I know how this whole system works and I will try to reproduce it as accurately as possible.
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  #16  
Old 23-03-21, 01:54
Jacques Reed Jacques Reed is offline
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Default Auto Specialties Jack- Saddle

Hi Mariano,

Glad to be of some help. Here are a couple more close ups of the saddle on my smaller jack which may aid fabrication.

As a matter of interest, on the smaller jack the upper tube is 1-11/16" in diameter, and at the collar it is 1-15/16" in diameter. Wonder how that compares to the 4 ton jack?

Cheers,
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IMG_0244a.JPG   IMG_0245a.JPG  
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  #17  
Old 23-03-21, 15:54
m606paz m606paz is offline
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Hi Jacques
Great help with this close ups pics!!

Next Friday I will return to the workshop and I will be able to start the reproduction

Thank you very much!
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1944 Ariel W/NG
1945 FGT FAT
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  #18  
Old 23-03-21, 19:27
David Dunlop David Dunlop is offline
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Out of curiosity, I contacted the U.S. Jack Company about this series of Screw Jacks. They purchased the tooling for the older series of hydraulic and screw jacks from Auto Specialties in 1988 when Auto Specialties closed. The older documentation had also been obtained in the transaction.

Unfortunately, in 2000, U.S. Jack Company had a massive fire at their plant and much of the archive documentation was lost for these jacks.

The only likely surviving paperwork is now probably in Military Parts Listings and manuals that may still be around.

David
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  #19  
Old 24-03-21, 00:40
m606paz m606paz is offline
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Good to know this piece of history about this manufacturer
Thanks David for sharing!
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  #20  
Old 27-03-21, 05:08
m606paz m606paz is offline
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Today more work with the jack
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IMG-20210326-WA0014.jpg   IMG-20210326-WA0012.jpg   IMG-20210326-WA0018.jpg   IMG-20210326-WA0024.jpg   IMG-20210326-WA0029.jpg  

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1945 FGT FAT
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  #21  
Old 27-03-21, 05:12
m606paz m606paz is offline
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Adjusting tube and making the saddle
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IMG-20210326-WA0032.jpg   IMG-20210326-WA0034.jpg   IMG-20210326-WA0036.jpg   IMG-20210326-WA0043.jpg   IMG-20210326-WA0045.jpg  

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  #22  
Old 27-03-21, 05:14
m606paz m606paz is offline
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Making the ring too.
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IMG-20210326-WA0048.jpg   IMG-20210326-WA0050.jpg   IMG-20210326-WA0054.jpg   IMG-20210326-WA0061.jpg   IMG-20210326-WA0063.jpg  

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1945 FGT FAT
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  #23  
Old 27-03-21, 20:45
m606paz m606paz is offline
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The saddle
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IMG-20210327-WA0004.jpg   IMG-20210327-WA0006.jpg   IMG-20210327-WA0009.jpg   IMG-20210327-WA0011.jpg   IMG-20210327-WA0014.jpg  

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  #24  
Old 27-03-21, 23:42
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Tony Smith Tony Smith is offline
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Very nice work!
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  #25  
Old 28-03-21, 00:15
m606paz m606paz is offline
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Thank you Tony! Jack works again! Now need paint!
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IMG-20210327-WA0018.jpg   IMG-20210327-WA0020.jpg   IMG-20210327-WA0023.jpg   IMG-20210327-WA0025.jpg  
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  #26  
Old 25-03-24, 16:54
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Hanno Spoelstra Hanno Spoelstra is offline
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Quote:
Originally Posted by m606paz View Post
The handle
Thanks for that Mariano, it's very helpful to find or make the missing handle for my jack: http://www.mapleleafup.net/forums/sh...ad.php?t=34620

Nice work on the restoration of that jack!
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