JD 350 track adjuster

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Larry 8N75381
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JD 350 track adjuster

Post by Larry 8N75381 » Thu Jul 12, 2012 2:31 pm

The cylinder on the track adjuster for my 350 has a crack in it - see below.
Image
A search of the web finds an after market replacement that looks like this;
Image
At the base is what looks like a standard pipe plug. My question is, "How do you get grease into the cylinder to stretch the track out tight?" Has someone used one of these replacement adjusters that can tell me, OR better still take a picture of one on a machine?

Thanks,
Larry

PS
Here is an exploded assembly drawing that shows an adjuster like that in the previous photo. BUT, there are no grease fittings shown.
Image CLICK TO ENLARGE.
Oliver OC-4 Dozer, '67 Ford 3000, '48 Ford 8N75381, '67 JD 350 Loader

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Willyr
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Post by Willyr » Thu Jul 12, 2012 2:38 pm

It is a pipe thread. On my Case 350, you screwed a grease gun directly into the cylinder. Then pump away till it got tight or your arm got tired. Image
former owner of a 1956 420c
All help is greatly appreciated.

Proud owner of a project 1952 JD 60

http://www.youtube.com/watch?v=nFehqXVd9z4

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Tigerhaze
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Post by Tigerhaze » Thu Jul 12, 2012 2:41 pm

I can't see the photo here at work, but the external pipe plug on most aftermarket adjusters is just a protective cover to keep dirt out. Once you unscrew the plug the standard zerk fitting to pump grease is inside.

If I get to my farm this week I will take a photo of my aftermarket adjuster.
(1) JD Straight 450 crawler dozer with manual outside blade; (2) JD 2010 diesel crawler loaders; (1) JD 2010 diesel dozer with hydraulic 6-way blade; (2) Model 50 backhoe attachments, misc. other construction equipment

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CatD8RII
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Post by CatD8RII » Thu Jul 12, 2012 3:54 pm

Tigerhaze is correct, you just unscrew the pipe plug and you can get to the adjuster valve. It has a standard zerk fitting. To loosen the track you take a 7/8" socket and unscrew the valve no more than 1 turn. Just make sure the valve is snug again before pumping the tracks back up.

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carolina crawler
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Post by carolina crawler » Fri Jul 13, 2012 6:51 am

I bought a pair of these for my 350b........way better then that old JD adjuster.........highly rec.
1978 350b loader w/winch

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Lavoy
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Post by Lavoy » Fri Jul 13, 2012 10:23 am

I have installed and sold several of the adjusters in the pic, they work fine.
Lavoy

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Larry 8N75381
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Post by Larry 8N75381 » Fri Jul 13, 2012 10:05 pm

Thanks to all that replied.
I will be ordering the after market adjuster.
Larry
Oliver OC-4 Dozer, '67 Ford 3000, '48 Ford 8N75381, '67 JD 350 Loader

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