[Farmall] how to check a ta on a Farmall 400

[Mike Sloane]

The tractor will work fine without the TA being functional. You just 
lose the ability to drop your ground speed without having to stop and 
change gears or stop the PTO. It all depends on what kind of work you 
are planning on using the tractor for. I am not a farmer, so I can't 
guide you there. I like having the TA when I am backing up to mount an 
implement or when I am cutting with the sickle bar mower in heavy 
material. I should point out that replacing or repairing the TA is not a 
trivial matter - the tractor has to be split, and rebuilt TA's for the 
300/400 series tractors can run well over $500. They can be rebuilt by 
owners, and I have seen ads for video's that purport to walk you through 
the process. The TA on my 560 is out, and I am waiting for my winning 
number in the lottery so I can have someone else do the job. Meanwhile, 
I live without it. (I also plan to buy a ticket one of these days. :-) )

Crawlers are a whole other world - everything is heavier and harder to 
access, more difficult to move and more difficult to fix. The problem 
with most old crawlers is wear on the tracks, sprockets, and turning 
clutches. My advice is to not get involved with a crawler unless you 
have someone around with some experience and the bigger tools that are 
required. I would, at the least, do a lot of research before tackling 
something like that.

Mike

On 9/12/2010 7:42 AM, profarmall at aol.com wrote:
>
> Mike Thanks for the info, I never had a tractor with a ta on it just
> 3 H's and 1 C. If the tractors ta doesnt work, will it have to be
> replaced to use the tractor? I appreciate any info on this and thanks
> for responding, Also do you know anyone thats familiar with TD6
> crawer tractors? He has one of those too thanks again Ed
>
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> -----Original Message----- From: Mike Sloane<mikesloane at verizon.net>
> To: Farmall/IHC mailing list<farmall at lists.antique-tractor.com> Sent:
> Sun, Sep 12, 2010 6:42 am Subject: Re: [Farmall] how to check a ta on
> a Farmall 400
>
>
> The only way I know is to operate it. While the tractor is moving,
> imply pull back on the lever all the way, not touching the clutch
> at all. The tractor's ground speed should immediately drop almost in
> half with no sounds or vibrations coming from anywhere. Releasing the
> lever forward should immediately and smoothly increase the ground
> speed to here it was. The TA works the same regardless of the
> transmission gear, but the difference in speed is most noticeable at the
> higher speeds, so try t in 2nd or 3rd. Generally speaking (from
> experience) the TA either works or it doesn't - nothing in between. If
> the seller suggests that "it just needs adjustment", I would be
> concerned, as all the adjustments does is determine the position of the
> lever when the TA engages. Mike On 9/11/2010 9:50 PM,
> profarmall at aol.com wrote:
>
> Hi all does anyone know how to see if a torque amplifier on a 55
> Farmall 400 is working? My son and I are looking at one that a guy
> up the street has. Any hints would be great thanks in advance Ed
>