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Farmall & IHC Tractors Discussion Forum
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Holes Behind Gear Shifter

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SuperA-Tx

01-17-2007 10:56:27




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Behind the Gear shifter there are two 5/8"(?) inch threaded holes that are spaced about 5 inches apart. They are on Super A's and 140's. They came with cork plugs in them which mine still had in when I restored the Super A and I think the 140's still have them in there.

Just wondering what the holes were used for?




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gene bender

01-18-2007 04:28:04




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 Re: Holes Behind Gear Shifter in reply to SuperA-Tx, 01-17-2007 10:56:27  
One use is for the two-way plow linkage another use is for the lever assy on the cult. Now this applies on the A. Dont know what they were used for on later models.



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tractorsam

01-17-2007 13:03:37




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 Re: Holes Behind Gear Shifter in reply to SuperA-Tx, 01-17-2007 10:56:27  
K-Mo is headed down the right track but didn't quite get there. When the Super A and it's descendents were supplied with the two way plough attachement they also came with a split rear rockshaft that allowed you lower one plough at a time. The holes that you see were for mounting the over-center lever assembly. This was used to support/hold up whichever side of the rockshaft(and therefore whichever plough) you weren't using. I hope this helps, if it's still a bit vague just say and I'll go out and try to snap a couple of pics on my Super A, tractorsam

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SuperA-Tx

01-17-2007 13:59:47




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 Re: Holes Behind Gear Shifter in reply to tractorsam, 01-17-2007 13:03:37  
It's a bit hard to follow but I got the jest of it I think. I guess the holes in mine were still plugged because we never used plows(ploughs).

That brings up another thing...Last month I had a man in here that said he had a Super A and had a plow for it. We kept talking and he said that it had an "arm" on the plow that went to the front axle and would make the plow turn with the tractor. Does yours also have that Sam?

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gene bender

01-18-2007 04:32:38




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 Re: Holes Behind Gear Shifter in reply to SuperA-Tx, 01-17-2007 13:59:47  
He was talking about the DISC plow and the linkage turned the large cast wheel on the back the tinkage went to the steering arm on the left front wheel you needed to be able to turn when conturing.



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tractorsam

01-17-2007 17:40:45




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 Re: Holes Behind Gear Shifter in reply to SuperA-Tx, 01-17-2007 13:59:47  
I'll try and scare up a pic or two, maybe tomorrow and hopefully that'll give a slightly better idea. It's a very roundabout setup although my ploughs have no connection to the front end of the tractor. tractorsam



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Gene-AL

01-17-2007 17:35:07




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 Re: Holes Behind Gear Shifter in reply to SuperA-Tx, 01-17-2007 13:59:47  
I'm not Sam, but I have one of these -
The McCormick A-151 Disk (turning) Plow for a Super-A does have a long rod attached to a plow steering arm mounted on the right front steering knuckle of the tractor. This steers the wheel on the rear of the plow to follow the tractor's steering. The plow has dual-disks which can be adjusted for a 14-20" wide cut, depending on soil conditions. The plow is mounted much like the drawbar, and working depth is controlled by the hydraulic touch control. There is also a hand lever to raise and lower the plow wheel to set the working depth range. No problems with hanging up on roots and rocks with this plow, it just climbs over those it can't cut or move.

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SuperA-Tx

01-17-2007 18:33:49




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 Re: Holes Behind Gear Shifter in reply to Gene-AL, 01-17-2007 17:35:07  
Gene,

I think you have what the guy was talking about. I remember he did say it hooked to the right wheel and I kind of didnt think he knew what he was talking about. So its actually a disk instead of an actual plow, least what I consider a plow.

I was just curious as to what it was exactly after he brought it up. Thanks for your info.



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Hugh MacKay

01-17-2007 17:25:31




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 Re: Holes Behind Gear Shifter in reply to SuperA-Tx, 01-17-2007 13:59:47  
tx; I expect the plow you visitor was talking about is the A-91 plow for the Farmall A and not the Super A. Farmall A do have hardware that hook into cultivator mount right behind front axle.

On the device Sam was trying to tell you guys about, it is really not part of the actual plow lift, but rather mounting for the levers that switched the plow lift from left to right lifting and vice versa. That plow lift mounted on the fenders just like other rockshafts. You guys are just trying to make this too complicated.

Somewhere in my past, I've seen another attachment that bolted in those 5/8 holes you mention, can't think of what it is just now. If I think of it I'll come back.

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SuperA-Tx

01-17-2007 19:26:29




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 Re: Holes Behind Gear Shifter in reply to Hugh MacKay, 01-17-2007 17:25:31  
Hugh,

Yep, I got what Sam was saying. I had asked a couple of people but all they said was it was for "some implement". It had bugged me for years because I remember the cork in the 140's and then the same with the SA. Had thought the holes might of been for an umbrella.

I think Gene was right on the other thing I was asking about. I did a search and Binder Books has a manual for the A-151 for a Super A. I had understood it to be a plow (thats what the guy said) but I think it must have been a disk (disk plow).

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Hugh MacKay

01-18-2007 02:45:14




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 Re: Holes Behind Gear Shifter in reply to SuperA-Tx, 01-17-2007 19:26:29  
Tx; I just dug out a parts manual I have for an older disc plow, A-147, manual hand controls for A without hydraulics. It has a rod going to front axle, actually from the photo it lookd to go over axle and hook to tyrod. Probably a predecessor of the A-151, as there are disc plows in this book, namely; A-147, B-147, No.149, H-149 and HM-150.

I didn't take time to go into this in detail as I'm in a hurry this morning, but as I leaf through this 85-PO tractor plow book I see parts of A some hand lifts that bolt to those holes on top of transmission. It may just be rear rockshaft for hand lift.

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K-Mo

01-17-2007 11:28:35




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 Re: Holes Behind Gear Shifter in reply to SuperA-Tx, 01-17-2007 10:56:27  
I think the holes you are refering to date back to the Farmall A where a rockshaft for lifting rear mounted implements such as a plow was mounted. The newer Super As with a 1 or 2 Point hitch used a rockshaft mounted to the fenders.

K-Mo



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